| <!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `/root/.cargo/git/checkouts/tantivy-65d0bbbddbbd5d02/433372d/src/indexer/segment_updater.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>segment_updater.rs - source</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceCodePro-Semibold.ttf.woff2"><link rel="stylesheet" href="../../../normalize.css"><link rel="stylesheet" href="../../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" href="../../../ayu.css" disabled><link rel="stylesheet" href="../../../dark.css" disabled><link rel="stylesheet" href="../../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../../storage.js"></script><script defer src="../../../source-script.js"></script><script defer src="../../../source-files.js"></script><script defer src="../../../main.js"></script><noscript><link rel="stylesheet" href="../../../noscript.css"></noscript><link rel="alternate icon" type="image/png" href="../../../favicon-16x16.png"><link rel="alternate icon" type="image/png" href="../../../favicon-32x32.png"><link rel="icon" type="image/svg+xml" href="../../../favicon.svg"></head><body class="rustdoc source"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><a class="sidebar-logo" href="../../../tantivy/index.html"><div class="logo-container"> |
| <img src="http://fulmicoton.com/tantivy-logo/tantivy-logo.png" alt="logo"></div></a></nav><main><div class="width-limiter"><nav class="sub"><a class="sub-logo-container" href="../../../tantivy/index.html"> |
| <img src="http://fulmicoton.com/tantivy-logo/tantivy-logo.png" alt="logo"></a><form class="search-form"><div class="search-container"><span></span><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" title="help" tabindex="-1"><a href="../../../help.html">?</a></div><div id="settings-menu" tabindex="-1"><a href="../../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../../wheel.svg"></a></div></div></form></nav><section id="main-content" class="content"><div class="example-wrap"><pre class="src-line-numbers"><span id="1">1</span> |
| <span id="2">2</span> |
| <span id="3">3</span> |
| <span id="4">4</span> |
| <span id="5">5</span> |
| <span id="6">6</span> |
| <span id="7">7</span> |
| <span id="8">8</span> |
| <span id="9">9</span> |
| <span id="10">10</span> |
| <span id="11">11</span> |
| <span id="12">12</span> |
| <span id="13">13</span> |
| <span id="14">14</span> |
| <span id="15">15</span> |
| <span id="16">16</span> |
| <span id="17">17</span> |
| <span id="18">18</span> |
| <span id="19">19</span> |
| <span id="20">20</span> |
| <span id="21">21</span> |
| <span id="22">22</span> |
| <span id="23">23</span> |
| <span id="24">24</span> |
| <span id="25">25</span> |
| <span id="26">26</span> |
| <span id="27">27</span> |
| <span id="28">28</span> |
| <span id="29">29</span> |
| <span id="30">30</span> |
| <span id="31">31</span> |
| <span id="32">32</span> |
| <span id="33">33</span> |
| <span id="34">34</span> |
| <span id="35">35</span> |
| <span id="36">36</span> |
| <span id="37">37</span> |
| <span id="38">38</span> |
| <span id="39">39</span> |
| <span id="40">40</span> |
| <span id="41">41</span> |
| <span id="42">42</span> |
| <span id="43">43</span> |
| <span id="44">44</span> |
| <span id="45">45</span> |
| <span id="46">46</span> |
| <span id="47">47</span> |
| <span id="48">48</span> |
| <span id="49">49</span> |
| <span id="50">50</span> |
| <span id="51">51</span> |
| <span id="52">52</span> |
| <span id="53">53</span> |
| <span id="54">54</span> |
| <span id="55">55</span> |
| <span id="56">56</span> |
| <span id="57">57</span> |
| <span id="58">58</span> |
| <span id="59">59</span> |
| <span id="60">60</span> |
| <span id="61">61</span> |
| <span id="62">62</span> |
| <span id="63">63</span> |
| <span id="64">64</span> |
| <span id="65">65</span> |
| <span id="66">66</span> |
| <span id="67">67</span> |
| <span id="68">68</span> |
| <span id="69">69</span> |
| <span id="70">70</span> |
| <span id="71">71</span> |
| <span id="72">72</span> |
| <span id="73">73</span> |
| <span id="74">74</span> |
| <span id="75">75</span> |
| <span id="76">76</span> |
| <span id="77">77</span> |
| <span id="78">78</span> |
| <span id="79">79</span> |
| <span id="80">80</span> |
| <span id="81">81</span> |
| <span id="82">82</span> |
| <span id="83">83</span> |
| <span id="84">84</span> |
| <span id="85">85</span> |
| <span id="86">86</span> |
| <span id="87">87</span> |
| <span id="88">88</span> |
| <span id="89">89</span> |
| <span id="90">90</span> |
| <span id="91">91</span> |
| <span id="92">92</span> |
| <span id="93">93</span> |
| <span id="94">94</span> |
| <span id="95">95</span> |
| <span id="96">96</span> |
| <span id="97">97</span> |
| <span id="98">98</span> |
| <span id="99">99</span> |
| <span id="100">100</span> |
| <span id="101">101</span> |
| <span id="102">102</span> |
| <span id="103">103</span> |
| <span id="104">104</span> |
| <span id="105">105</span> |
| <span id="106">106</span> |
| <span id="107">107</span> |
| <span id="108">108</span> |
| <span id="109">109</span> |
| <span id="110">110</span> |
| <span id="111">111</span> |
| <span id="112">112</span> |
| <span id="113">113</span> |
| <span id="114">114</span> |
| <span id="115">115</span> |
| <span id="116">116</span> |
| <span id="117">117</span> |
| <span id="118">118</span> |
| <span id="119">119</span> |
| <span id="120">120</span> |
| <span id="121">121</span> |
| <span id="122">122</span> |
| <span id="123">123</span> |
| <span id="124">124</span> |
| <span id="125">125</span> |
| <span id="126">126</span> |
| <span id="127">127</span> |
| <span id="128">128</span> |
| <span id="129">129</span> |
| <span id="130">130</span> |
| <span id="131">131</span> |
| <span id="132">132</span> |
| <span id="133">133</span> |
| <span id="134">134</span> |
| <span id="135">135</span> |
| <span id="136">136</span> |
| <span id="137">137</span> |
| <span id="138">138</span> |
| <span id="139">139</span> |
| <span id="140">140</span> |
| <span id="141">141</span> |
| <span id="142">142</span> |
| <span id="143">143</span> |
| <span id="144">144</span> |
| <span id="145">145</span> |
| <span id="146">146</span> |
| <span id="147">147</span> |
| <span id="148">148</span> |
| <span id="149">149</span> |
| <span id="150">150</span> |
| <span id="151">151</span> |
| <span id="152">152</span> |
| <span id="153">153</span> |
| <span id="154">154</span> |
| <span id="155">155</span> |
| <span id="156">156</span> |
| <span id="157">157</span> |
| <span id="158">158</span> |
| <span id="159">159</span> |
| <span id="160">160</span> |
| <span id="161">161</span> |
| <span id="162">162</span> |
| <span id="163">163</span> |
| <span id="164">164</span> |
| <span id="165">165</span> |
| <span id="166">166</span> |
| <span id="167">167</span> |
| <span id="168">168</span> |
| <span id="169">169</span> |
| <span id="170">170</span> |
| <span id="171">171</span> |
| <span id="172">172</span> |
| <span id="173">173</span> |
| <span id="174">174</span> |
| <span id="175">175</span> |
| <span id="176">176</span> |
| <span id="177">177</span> |
| <span id="178">178</span> |
| <span id="179">179</span> |
| <span id="180">180</span> |
| <span id="181">181</span> |
| <span id="182">182</span> |
| <span id="183">183</span> |
| <span id="184">184</span> |
| <span id="185">185</span> |
| <span id="186">186</span> |
| <span id="187">187</span> |
| <span id="188">188</span> |
| <span id="189">189</span> |
| <span id="190">190</span> |
| <span id="191">191</span> |
| <span id="192">192</span> |
| <span id="193">193</span> |
| <span id="194">194</span> |
| <span id="195">195</span> |
| <span id="196">196</span> |
| <span id="197">197</span> |
| <span id="198">198</span> |
| <span id="199">199</span> |
| <span id="200">200</span> |
| <span id="201">201</span> |
| <span id="202">202</span> |
| <span id="203">203</span> |
| <span id="204">204</span> |
| <span id="205">205</span> |
| <span id="206">206</span> |
| <span id="207">207</span> |
| <span id="208">208</span> |
| <span id="209">209</span> |
| <span id="210">210</span> |
| <span id="211">211</span> |
| <span id="212">212</span> |
| <span id="213">213</span> |
| <span id="214">214</span> |
| <span id="215">215</span> |
| <span id="216">216</span> |
| <span id="217">217</span> |
| <span id="218">218</span> |
| <span id="219">219</span> |
| <span id="220">220</span> |
| <span id="221">221</span> |
| <span id="222">222</span> |
| <span id="223">223</span> |
| <span id="224">224</span> |
| <span id="225">225</span> |
| <span id="226">226</span> |
| <span id="227">227</span> |
| <span id="228">228</span> |
| <span id="229">229</span> |
| <span id="230">230</span> |
| <span id="231">231</span> |
| <span id="232">232</span> |
| <span id="233">233</span> |
| <span id="234">234</span> |
| <span id="235">235</span> |
| <span id="236">236</span> |
| <span id="237">237</span> |
| <span id="238">238</span> |
| <span id="239">239</span> |
| <span id="240">240</span> |
| <span id="241">241</span> |
| <span id="242">242</span> |
| <span id="243">243</span> |
| <span id="244">244</span> |
| <span id="245">245</span> |
| <span id="246">246</span> |
| <span id="247">247</span> |
| <span id="248">248</span> |
| <span id="249">249</span> |
| <span id="250">250</span> |
| <span id="251">251</span> |
| <span id="252">252</span> |
| <span id="253">253</span> |
| <span id="254">254</span> |
| <span id="255">255</span> |
| <span id="256">256</span> |
| <span id="257">257</span> |
| <span id="258">258</span> |
| <span id="259">259</span> |
| <span id="260">260</span> |
| <span id="261">261</span> |
| <span id="262">262</span> |
| <span id="263">263</span> |
| <span id="264">264</span> |
| <span id="265">265</span> |
| <span id="266">266</span> |
| <span id="267">267</span> |
| <span id="268">268</span> |
| <span id="269">269</span> |
| <span id="270">270</span> |
| <span id="271">271</span> |
| <span id="272">272</span> |
| <span id="273">273</span> |
| <span id="274">274</span> |
| <span id="275">275</span> |
| <span id="276">276</span> |
| <span id="277">277</span> |
| <span id="278">278</span> |
| <span id="279">279</span> |
| <span id="280">280</span> |
| <span id="281">281</span> |
| <span id="282">282</span> |
| <span id="283">283</span> |
| <span id="284">284</span> |
| <span id="285">285</span> |
| <span id="286">286</span> |
| <span id="287">287</span> |
| <span id="288">288</span> |
| <span id="289">289</span> |
| <span id="290">290</span> |
| <span id="291">291</span> |
| <span id="292">292</span> |
| <span id="293">293</span> |
| <span id="294">294</span> |
| <span id="295">295</span> |
| <span id="296">296</span> |
| <span id="297">297</span> |
| <span id="298">298</span> |
| <span id="299">299</span> |
| <span id="300">300</span> |
| <span id="301">301</span> |
| <span id="302">302</span> |
| <span id="303">303</span> |
| <span id="304">304</span> |
| <span id="305">305</span> |
| <span id="306">306</span> |
| <span id="307">307</span> |
| <span id="308">308</span> |
| <span id="309">309</span> |
| <span id="310">310</span> |
| <span id="311">311</span> |
| <span id="312">312</span> |
| <span id="313">313</span> |
| <span id="314">314</span> |
| <span id="315">315</span> |
| <span id="316">316</span> |
| <span id="317">317</span> |
| <span id="318">318</span> |
| <span id="319">319</span> |
| <span id="320">320</span> |
| <span id="321">321</span> |
| <span id="322">322</span> |
| <span id="323">323</span> |
| <span id="324">324</span> |
| <span id="325">325</span> |
| <span id="326">326</span> |
| <span id="327">327</span> |
| <span id="328">328</span> |
| <span id="329">329</span> |
| <span id="330">330</span> |
| <span id="331">331</span> |
| <span id="332">332</span> |
| <span id="333">333</span> |
| <span id="334">334</span> |
| <span id="335">335</span> |
| <span id="336">336</span> |
| <span id="337">337</span> |
| <span id="338">338</span> |
| <span id="339">339</span> |
| <span id="340">340</span> |
| <span id="341">341</span> |
| <span id="342">342</span> |
| <span id="343">343</span> |
| <span id="344">344</span> |
| <span id="345">345</span> |
| <span id="346">346</span> |
| <span id="347">347</span> |
| <span id="348">348</span> |
| <span id="349">349</span> |
| <span id="350">350</span> |
| <span id="351">351</span> |
| <span id="352">352</span> |
| <span id="353">353</span> |
| <span id="354">354</span> |
| <span id="355">355</span> |
| <span id="356">356</span> |
| <span id="357">357</span> |
| <span id="358">358</span> |
| <span id="359">359</span> |
| <span id="360">360</span> |
| <span id="361">361</span> |
| <span id="362">362</span> |
| <span id="363">363</span> |
| <span id="364">364</span> |
| <span id="365">365</span> |
| <span id="366">366</span> |
| <span id="367">367</span> |
| <span id="368">368</span> |
| <span id="369">369</span> |
| <span id="370">370</span> |
| <span id="371">371</span> |
| <span id="372">372</span> |
| <span id="373">373</span> |
| <span id="374">374</span> |
| <span id="375">375</span> |
| <span id="376">376</span> |
| <span id="377">377</span> |
| <span id="378">378</span> |
| <span id="379">379</span> |
| <span id="380">380</span> |
| <span id="381">381</span> |
| <span id="382">382</span> |
| <span id="383">383</span> |
| <span id="384">384</span> |
| <span id="385">385</span> |
| <span id="386">386</span> |
| <span id="387">387</span> |
| <span id="388">388</span> |
| <span id="389">389</span> |
| <span id="390">390</span> |
| <span id="391">391</span> |
| <span id="392">392</span> |
| <span id="393">393</span> |
| <span id="394">394</span> |
| <span id="395">395</span> |
| <span id="396">396</span> |
| <span id="397">397</span> |
| <span id="398">398</span> |
| <span id="399">399</span> |
| <span id="400">400</span> |
| <span id="401">401</span> |
| <span id="402">402</span> |
| <span id="403">403</span> |
| <span id="404">404</span> |
| <span id="405">405</span> |
| <span id="406">406</span> |
| <span id="407">407</span> |
| <span id="408">408</span> |
| <span id="409">409</span> |
| <span id="410">410</span> |
| <span id="411">411</span> |
| <span id="412">412</span> |
| <span id="413">413</span> |
| <span id="414">414</span> |
| <span id="415">415</span> |
| <span id="416">416</span> |
| <span id="417">417</span> |
| <span id="418">418</span> |
| <span id="419">419</span> |
| <span id="420">420</span> |
| <span id="421">421</span> |
| <span id="422">422</span> |
| <span id="423">423</span> |
| <span id="424">424</span> |
| <span id="425">425</span> |
| <span id="426">426</span> |
| <span id="427">427</span> |
| <span id="428">428</span> |
| <span id="429">429</span> |
| <span id="430">430</span> |
| <span id="431">431</span> |
| <span id="432">432</span> |
| <span id="433">433</span> |
| <span id="434">434</span> |
| <span id="435">435</span> |
| <span id="436">436</span> |
| <span id="437">437</span> |
| <span id="438">438</span> |
| <span id="439">439</span> |
| <span id="440">440</span> |
| <span id="441">441</span> |
| <span id="442">442</span> |
| <span id="443">443</span> |
| <span id="444">444</span> |
| <span id="445">445</span> |
| <span id="446">446</span> |
| <span id="447">447</span> |
| <span id="448">448</span> |
| <span id="449">449</span> |
| <span id="450">450</span> |
| <span id="451">451</span> |
| <span id="452">452</span> |
| <span id="453">453</span> |
| <span id="454">454</span> |
| <span id="455">455</span> |
| <span id="456">456</span> |
| <span id="457">457</span> |
| <span id="458">458</span> |
| <span id="459">459</span> |
| <span id="460">460</span> |
| <span id="461">461</span> |
| <span id="462">462</span> |
| <span id="463">463</span> |
| <span id="464">464</span> |
| <span id="465">465</span> |
| <span id="466">466</span> |
| <span id="467">467</span> |
| <span id="468">468</span> |
| <span id="469">469</span> |
| <span id="470">470</span> |
| <span id="471">471</span> |
| <span id="472">472</span> |
| <span id="473">473</span> |
| <span id="474">474</span> |
| <span id="475">475</span> |
| <span id="476">476</span> |
| <span id="477">477</span> |
| <span id="478">478</span> |
| <span id="479">479</span> |
| <span id="480">480</span> |
| <span id="481">481</span> |
| <span id="482">482</span> |
| <span id="483">483</span> |
| <span id="484">484</span> |
| <span id="485">485</span> |
| <span id="486">486</span> |
| <span id="487">487</span> |
| <span id="488">488</span> |
| <span id="489">489</span> |
| <span id="490">490</span> |
| <span id="491">491</span> |
| <span id="492">492</span> |
| <span id="493">493</span> |
| <span id="494">494</span> |
| <span id="495">495</span> |
| <span id="496">496</span> |
| <span id="497">497</span> |
| <span id="498">498</span> |
| <span id="499">499</span> |
| <span id="500">500</span> |
| <span id="501">501</span> |
| <span id="502">502</span> |
| <span id="503">503</span> |
| <span id="504">504</span> |
| <span id="505">505</span> |
| <span id="506">506</span> |
| <span id="507">507</span> |
| <span id="508">508</span> |
| <span id="509">509</span> |
| <span id="510">510</span> |
| <span id="511">511</span> |
| <span id="512">512</span> |
| <span id="513">513</span> |
| <span id="514">514</span> |
| <span id="515">515</span> |
| <span id="516">516</span> |
| <span id="517">517</span> |
| <span id="518">518</span> |
| <span id="519">519</span> |
| <span id="520">520</span> |
| <span id="521">521</span> |
| <span id="522">522</span> |
| <span id="523">523</span> |
| <span id="524">524</span> |
| <span id="525">525</span> |
| <span id="526">526</span> |
| <span id="527">527</span> |
| <span id="528">528</span> |
| <span id="529">529</span> |
| <span id="530">530</span> |
| <span id="531">531</span> |
| <span id="532">532</span> |
| <span id="533">533</span> |
| <span id="534">534</span> |
| <span id="535">535</span> |
| <span id="536">536</span> |
| <span id="537">537</span> |
| <span id="538">538</span> |
| <span id="539">539</span> |
| <span id="540">540</span> |
| <span id="541">541</span> |
| <span id="542">542</span> |
| <span id="543">543</span> |
| <span id="544">544</span> |
| <span id="545">545</span> |
| <span id="546">546</span> |
| <span id="547">547</span> |
| <span id="548">548</span> |
| <span id="549">549</span> |
| <span id="550">550</span> |
| <span id="551">551</span> |
| <span id="552">552</span> |
| <span id="553">553</span> |
| <span id="554">554</span> |
| <span id="555">555</span> |
| <span id="556">556</span> |
| <span id="557">557</span> |
| <span id="558">558</span> |
| <span id="559">559</span> |
| <span id="560">560</span> |
| <span id="561">561</span> |
| <span id="562">562</span> |
| <span id="563">563</span> |
| <span id="564">564</span> |
| <span id="565">565</span> |
| <span id="566">566</span> |
| <span id="567">567</span> |
| <span id="568">568</span> |
| <span id="569">569</span> |
| <span id="570">570</span> |
| <span id="571">571</span> |
| <span id="572">572</span> |
| <span id="573">573</span> |
| <span id="574">574</span> |
| <span id="575">575</span> |
| <span id="576">576</span> |
| <span id="577">577</span> |
| <span id="578">578</span> |
| <span id="579">579</span> |
| <span id="580">580</span> |
| <span id="581">581</span> |
| <span id="582">582</span> |
| <span id="583">583</span> |
| <span id="584">584</span> |
| <span id="585">585</span> |
| <span id="586">586</span> |
| <span id="587">587</span> |
| <span id="588">588</span> |
| <span id="589">589</span> |
| <span id="590">590</span> |
| <span id="591">591</span> |
| <span id="592">592</span> |
| <span id="593">593</span> |
| <span id="594">594</span> |
| <span id="595">595</span> |
| <span id="596">596</span> |
| <span id="597">597</span> |
| <span id="598">598</span> |
| <span id="599">599</span> |
| <span id="600">600</span> |
| <span id="601">601</span> |
| <span id="602">602</span> |
| <span id="603">603</span> |
| <span id="604">604</span> |
| <span id="605">605</span> |
| <span id="606">606</span> |
| <span id="607">607</span> |
| <span id="608">608</span> |
| <span id="609">609</span> |
| <span id="610">610</span> |
| <span id="611">611</span> |
| <span id="612">612</span> |
| <span id="613">613</span> |
| <span id="614">614</span> |
| <span id="615">615</span> |
| <span id="616">616</span> |
| <span id="617">617</span> |
| <span id="618">618</span> |
| <span id="619">619</span> |
| <span id="620">620</span> |
| <span id="621">621</span> |
| <span id="622">622</span> |
| <span id="623">623</span> |
| <span id="624">624</span> |
| <span id="625">625</span> |
| <span id="626">626</span> |
| <span id="627">627</span> |
| <span id="628">628</span> |
| <span id="629">629</span> |
| <span id="630">630</span> |
| <span id="631">631</span> |
| <span id="632">632</span> |
| <span id="633">633</span> |
| <span id="634">634</span> |
| <span id="635">635</span> |
| <span id="636">636</span> |
| <span id="637">637</span> |
| <span id="638">638</span> |
| <span id="639">639</span> |
| <span id="640">640</span> |
| <span id="641">641</span> |
| <span id="642">642</span> |
| <span id="643">643</span> |
| <span id="644">644</span> |
| <span id="645">645</span> |
| <span id="646">646</span> |
| <span id="647">647</span> |
| <span id="648">648</span> |
| <span id="649">649</span> |
| <span id="650">650</span> |
| <span id="651">651</span> |
| <span id="652">652</span> |
| <span id="653">653</span> |
| <span id="654">654</span> |
| <span id="655">655</span> |
| <span id="656">656</span> |
| <span id="657">657</span> |
| <span id="658">658</span> |
| <span id="659">659</span> |
| <span id="660">660</span> |
| <span id="661">661</span> |
| <span id="662">662</span> |
| <span id="663">663</span> |
| <span id="664">664</span> |
| <span id="665">665</span> |
| <span id="666">666</span> |
| <span id="667">667</span> |
| <span id="668">668</span> |
| <span id="669">669</span> |
| <span id="670">670</span> |
| <span id="671">671</span> |
| <span id="672">672</span> |
| <span id="673">673</span> |
| <span id="674">674</span> |
| <span id="675">675</span> |
| <span id="676">676</span> |
| <span id="677">677</span> |
| <span id="678">678</span> |
| <span id="679">679</span> |
| <span id="680">680</span> |
| <span id="681">681</span> |
| <span id="682">682</span> |
| <span id="683">683</span> |
| <span id="684">684</span> |
| <span id="685">685</span> |
| <span id="686">686</span> |
| <span id="687">687</span> |
| <span id="688">688</span> |
| <span id="689">689</span> |
| <span id="690">690</span> |
| <span id="691">691</span> |
| <span id="692">692</span> |
| <span id="693">693</span> |
| <span id="694">694</span> |
| <span id="695">695</span> |
| <span id="696">696</span> |
| <span id="697">697</span> |
| <span id="698">698</span> |
| <span id="699">699</span> |
| <span id="700">700</span> |
| <span id="701">701</span> |
| <span id="702">702</span> |
| <span id="703">703</span> |
| <span id="704">704</span> |
| <span id="705">705</span> |
| <span id="706">706</span> |
| <span id="707">707</span> |
| <span id="708">708</span> |
| <span id="709">709</span> |
| <span id="710">710</span> |
| <span id="711">711</span> |
| <span id="712">712</span> |
| <span id="713">713</span> |
| <span id="714">714</span> |
| <span id="715">715</span> |
| <span id="716">716</span> |
| <span id="717">717</span> |
| <span id="718">718</span> |
| <span id="719">719</span> |
| <span id="720">720</span> |
| <span id="721">721</span> |
| <span id="722">722</span> |
| <span id="723">723</span> |
| <span id="724">724</span> |
| <span id="725">725</span> |
| <span id="726">726</span> |
| <span id="727">727</span> |
| <span id="728">728</span> |
| <span id="729">729</span> |
| <span id="730">730</span> |
| <span id="731">731</span> |
| <span id="732">732</span> |
| <span id="733">733</span> |
| <span id="734">734</span> |
| <span id="735">735</span> |
| <span id="736">736</span> |
| <span id="737">737</span> |
| <span id="738">738</span> |
| <span id="739">739</span> |
| <span id="740">740</span> |
| <span id="741">741</span> |
| <span id="742">742</span> |
| <span id="743">743</span> |
| <span id="744">744</span> |
| <span id="745">745</span> |
| <span id="746">746</span> |
| <span id="747">747</span> |
| <span id="748">748</span> |
| <span id="749">749</span> |
| <span id="750">750</span> |
| <span id="751">751</span> |
| <span id="752">752</span> |
| <span id="753">753</span> |
| <span id="754">754</span> |
| <span id="755">755</span> |
| <span id="756">756</span> |
| <span id="757">757</span> |
| <span id="758">758</span> |
| <span id="759">759</span> |
| <span id="760">760</span> |
| <span id="761">761</span> |
| <span id="762">762</span> |
| <span id="763">763</span> |
| <span id="764">764</span> |
| <span id="765">765</span> |
| <span id="766">766</span> |
| <span id="767">767</span> |
| <span id="768">768</span> |
| <span id="769">769</span> |
| <span id="770">770</span> |
| <span id="771">771</span> |
| <span id="772">772</span> |
| <span id="773">773</span> |
| <span id="774">774</span> |
| <span id="775">775</span> |
| <span id="776">776</span> |
| <span id="777">777</span> |
| <span id="778">778</span> |
| <span id="779">779</span> |
| <span id="780">780</span> |
| <span id="781">781</span> |
| <span id="782">782</span> |
| <span id="783">783</span> |
| <span id="784">784</span> |
| <span id="785">785</span> |
| <span id="786">786</span> |
| <span id="787">787</span> |
| <span id="788">788</span> |
| <span id="789">789</span> |
| <span id="790">790</span> |
| <span id="791">791</span> |
| <span id="792">792</span> |
| <span id="793">793</span> |
| <span id="794">794</span> |
| <span id="795">795</span> |
| <span id="796">796</span> |
| <span id="797">797</span> |
| <span id="798">798</span> |
| <span id="799">799</span> |
| <span id="800">800</span> |
| <span id="801">801</span> |
| <span id="802">802</span> |
| <span id="803">803</span> |
| <span id="804">804</span> |
| <span id="805">805</span> |
| <span id="806">806</span> |
| <span id="807">807</span> |
| <span id="808">808</span> |
| <span id="809">809</span> |
| <span id="810">810</span> |
| <span id="811">811</span> |
| <span id="812">812</span> |
| <span id="813">813</span> |
| <span id="814">814</span> |
| <span id="815">815</span> |
| <span id="816">816</span> |
| <span id="817">817</span> |
| <span id="818">818</span> |
| <span id="819">819</span> |
| <span id="820">820</span> |
| <span id="821">821</span> |
| <span id="822">822</span> |
| <span id="823">823</span> |
| <span id="824">824</span> |
| <span id="825">825</span> |
| <span id="826">826</span> |
| <span id="827">827</span> |
| <span id="828">828</span> |
| <span id="829">829</span> |
| <span id="830">830</span> |
| <span id="831">831</span> |
| <span id="832">832</span> |
| <span id="833">833</span> |
| <span id="834">834</span> |
| <span id="835">835</span> |
| <span id="836">836</span> |
| <span id="837">837</span> |
| <span id="838">838</span> |
| <span id="839">839</span> |
| <span id="840">840</span> |
| <span id="841">841</span> |
| <span id="842">842</span> |
| <span id="843">843</span> |
| <span id="844">844</span> |
| <span id="845">845</span> |
| <span id="846">846</span> |
| <span id="847">847</span> |
| <span id="848">848</span> |
| <span id="849">849</span> |
| <span id="850">850</span> |
| <span id="851">851</span> |
| <span id="852">852</span> |
| <span id="853">853</span> |
| <span id="854">854</span> |
| <span id="855">855</span> |
| <span id="856">856</span> |
| <span id="857">857</span> |
| <span id="858">858</span> |
| <span id="859">859</span> |
| <span id="860">860</span> |
| <span id="861">861</span> |
| <span id="862">862</span> |
| <span id="863">863</span> |
| <span id="864">864</span> |
| <span id="865">865</span> |
| <span id="866">866</span> |
| <span id="867">867</span> |
| <span id="868">868</span> |
| <span id="869">869</span> |
| <span id="870">870</span> |
| <span id="871">871</span> |
| <span id="872">872</span> |
| <span id="873">873</span> |
| <span id="874">874</span> |
| <span id="875">875</span> |
| <span id="876">876</span> |
| <span id="877">877</span> |
| <span id="878">878</span> |
| <span id="879">879</span> |
| <span id="880">880</span> |
| <span id="881">881</span> |
| <span id="882">882</span> |
| <span id="883">883</span> |
| <span id="884">884</span> |
| <span id="885">885</span> |
| <span id="886">886</span> |
| <span id="887">887</span> |
| <span id="888">888</span> |
| <span id="889">889</span> |
| <span id="890">890</span> |
| <span id="891">891</span> |
| <span id="892">892</span> |
| <span id="893">893</span> |
| <span id="894">894</span> |
| <span id="895">895</span> |
| <span id="896">896</span> |
| <span id="897">897</span> |
| <span id="898">898</span> |
| <span id="899">899</span> |
| <span id="900">900</span> |
| <span id="901">901</span> |
| <span id="902">902</span> |
| <span id="903">903</span> |
| <span id="904">904</span> |
| <span id="905">905</span> |
| <span id="906">906</span> |
| <span id="907">907</span> |
| <span id="908">908</span> |
| <span id="909">909</span> |
| <span id="910">910</span> |
| <span id="911">911</span> |
| <span id="912">912</span> |
| <span id="913">913</span> |
| <span id="914">914</span> |
| <span id="915">915</span> |
| <span id="916">916</span> |
| <span id="917">917</span> |
| <span id="918">918</span> |
| <span id="919">919</span> |
| <span id="920">920</span> |
| <span id="921">921</span> |
| <span id="922">922</span> |
| <span id="923">923</span> |
| <span id="924">924</span> |
| <span id="925">925</span> |
| <span id="926">926</span> |
| <span id="927">927</span> |
| <span id="928">928</span> |
| <span id="929">929</span> |
| <span id="930">930</span> |
| <span id="931">931</span> |
| <span id="932">932</span> |
| <span id="933">933</span> |
| <span id="934">934</span> |
| <span id="935">935</span> |
| <span id="936">936</span> |
| <span id="937">937</span> |
| <span id="938">938</span> |
| <span id="939">939</span> |
| <span id="940">940</span> |
| <span id="941">941</span> |
| <span id="942">942</span> |
| <span id="943">943</span> |
| <span id="944">944</span> |
| <span id="945">945</span> |
| <span id="946">946</span> |
| <span id="947">947</span> |
| <span id="948">948</span> |
| <span id="949">949</span> |
| <span id="950">950</span> |
| <span id="951">951</span> |
| <span id="952">952</span> |
| <span id="953">953</span> |
| <span id="954">954</span> |
| <span id="955">955</span> |
| <span id="956">956</span> |
| <span id="957">957</span> |
| <span id="958">958</span> |
| <span id="959">959</span> |
| <span id="960">960</span> |
| <span id="961">961</span> |
| <span id="962">962</span> |
| <span id="963">963</span> |
| <span id="964">964</span> |
| <span id="965">965</span> |
| <span id="966">966</span> |
| <span id="967">967</span> |
| <span id="968">968</span> |
| <span id="969">969</span> |
| <span id="970">970</span> |
| <span id="971">971</span> |
| <span id="972">972</span> |
| <span id="973">973</span> |
| <span id="974">974</span> |
| <span id="975">975</span> |
| <span id="976">976</span> |
| <span id="977">977</span> |
| <span id="978">978</span> |
| <span id="979">979</span> |
| <span id="980">980</span> |
| <span id="981">981</span> |
| <span id="982">982</span> |
| <span id="983">983</span> |
| <span id="984">984</span> |
| <span id="985">985</span> |
| <span id="986">986</span> |
| <span id="987">987</span> |
| <span id="988">988</span> |
| <span id="989">989</span> |
| <span id="990">990</span> |
| <span id="991">991</span> |
| <span id="992">992</span> |
| <span id="993">993</span> |
| <span id="994">994</span> |
| <span id="995">995</span> |
| <span id="996">996</span> |
| <span id="997">997</span> |
| <span id="998">998</span> |
| <span id="999">999</span> |
| <span id="1000">1000</span> |
| <span id="1001">1001</span> |
| <span id="1002">1002</span> |
| <span id="1003">1003</span> |
| <span id="1004">1004</span> |
| <span id="1005">1005</span> |
| <span id="1006">1006</span> |
| <span id="1007">1007</span> |
| <span id="1008">1008</span> |
| <span id="1009">1009</span> |
| <span id="1010">1010</span> |
| <span id="1011">1011</span> |
| <span id="1012">1012</span> |
| <span id="1013">1013</span> |
| <span id="1014">1014</span> |
| <span id="1015">1015</span> |
| <span id="1016">1016</span> |
| <span id="1017">1017</span> |
| <span id="1018">1018</span> |
| <span id="1019">1019</span> |
| <span id="1020">1020</span> |
| <span id="1021">1021</span> |
| <span id="1022">1022</span> |
| <span id="1023">1023</span> |
| <span id="1024">1024</span> |
| <span id="1025">1025</span> |
| <span id="1026">1026</span> |
| <span id="1027">1027</span> |
| <span id="1028">1028</span> |
| <span id="1029">1029</span> |
| <span id="1030">1030</span> |
| <span id="1031">1031</span> |
| <span id="1032">1032</span> |
| <span id="1033">1033</span> |
| <span id="1034">1034</span> |
| <span id="1035">1035</span> |
| <span id="1036">1036</span> |
| <span id="1037">1037</span> |
| <span id="1038">1038</span> |
| <span id="1039">1039</span> |
| <span id="1040">1040</span> |
| <span id="1041">1041</span> |
| <span id="1042">1042</span> |
| <span id="1043">1043</span> |
| <span id="1044">1044</span> |
| <span id="1045">1045</span> |
| <span id="1046">1046</span> |
| <span id="1047">1047</span> |
| <span id="1048">1048</span> |
| <span id="1049">1049</span> |
| <span id="1050">1050</span> |
| <span id="1051">1051</span> |
| <span id="1052">1052</span> |
| <span id="1053">1053</span> |
| <span id="1054">1054</span> |
| <span id="1055">1055</span> |
| <span id="1056">1056</span> |
| <span id="1057">1057</span> |
| <span id="1058">1058</span> |
| <span id="1059">1059</span> |
| <span id="1060">1060</span> |
| <span id="1061">1061</span> |
| <span id="1062">1062</span> |
| <span id="1063">1063</span> |
| <span id="1064">1064</span> |
| <span id="1065">1065</span> |
| <span id="1066">1066</span> |
| <span id="1067">1067</span> |
| <span id="1068">1068</span> |
| <span id="1069">1069</span> |
| <span id="1070">1070</span> |
| <span id="1071">1071</span> |
| <span id="1072">1072</span> |
| <span id="1073">1073</span> |
| <span id="1074">1074</span> |
| <span id="1075">1075</span> |
| <span id="1076">1076</span> |
| <span id="1077">1077</span> |
| <span id="1078">1078</span> |
| <span id="1079">1079</span> |
| <span id="1080">1080</span> |
| <span id="1081">1081</span> |
| <span id="1082">1082</span> |
| <span id="1083">1083</span> |
| <span id="1084">1084</span> |
| <span id="1085">1085</span> |
| <span id="1086">1086</span> |
| <span id="1087">1087</span> |
| <span id="1088">1088</span> |
| <span id="1089">1089</span> |
| <span id="1090">1090</span> |
| <span id="1091">1091</span> |
| <span id="1092">1092</span> |
| <span id="1093">1093</span> |
| <span id="1094">1094</span> |
| <span id="1095">1095</span> |
| </pre><pre class="rust"><code><span class="kw">use </span>std::borrow::BorrowMut; |
| <span class="kw">use </span>std::collections::HashSet; |
| <span class="kw">use </span>std::io::Write; |
| <span class="kw">use </span>std::ops::Deref; |
| <span class="kw">use </span>std::path::PathBuf; |
| <span class="kw">use </span>std::sync::atomic::{AtomicBool, Ordering}; |
| <span class="kw">use </span>std::sync::{Arc, RwLock}; |
| |
| <span class="kw">use </span>fail::fail_point; |
| <span class="kw">use </span>rayon::{ThreadPool, ThreadPoolBuilder}; |
| |
| <span class="kw">use </span><span class="kw">super</span>::segment_manager::SegmentManager; |
| <span class="kw">use </span><span class="kw">crate</span>::core::{ |
| Index, IndexMeta, IndexSettings, Segment, SegmentId, SegmentMeta, META_FILEPATH, |
| }; |
| <span class="kw">use </span><span class="kw">crate</span>::directory::{Directory, DirectoryClone, GarbageCollectionResult}; |
| <span class="kw">use </span><span class="kw">crate</span>::fastfield::AliveBitSet; |
| <span class="kw">use </span><span class="kw">crate</span>::indexer::delete_queue::DeleteCursor; |
| <span class="kw">use </span><span class="kw">crate</span>::indexer::index_writer::advance_deletes; |
| <span class="kw">use </span><span class="kw">crate</span>::indexer::merge_operation::MergeOperationInventory; |
| <span class="kw">use </span><span class="kw">crate</span>::indexer::merger::IndexMerger; |
| <span class="kw">use </span><span class="kw">crate</span>::indexer::segment_manager::SegmentsStatus; |
| <span class="kw">use </span><span class="kw">crate</span>::indexer::stamper::Stamper; |
| <span class="kw">use </span><span class="kw">crate</span>::indexer::{ |
| DefaultMergePolicy, MergeCandidate, MergeOperation, MergePolicy, SegmentEntry, |
| SegmentSerializer, |
| }; |
| <span class="kw">use crate</span>::{FutureResult, Opstamp}; |
| |
| <span class="kw">const </span>NUM_MERGE_THREADS: usize = <span class="number">4</span>; |
| |
| <span class="doccomment">/// Save the index meta file. |
| /// This operation is atomic: |
| /// Either |
| /// - it fails, in which case an error is returned, |
| /// and the `meta.json` remains untouched, |
| /// - it success, and `meta.json` is written |
| /// and flushed. |
| /// |
| /// This method is not part of tantivy's public API |
| </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>save_metas(metas: <span class="kw-2">&</span>IndexMeta, directory: <span class="kw-2">&</span><span class="kw">dyn </span>Directory) -> <span class="kw">crate</span>::Result<()> { |
| <span class="macro">info!</span>(<span class="string">"save metas"</span>); |
| <span class="kw">let </span><span class="kw-2">mut </span>buffer = serde_json::to_vec_pretty(metas)<span class="question-mark">?</span>; |
| <span class="comment">// Just adding a new line at the end of the buffer. |
| </span><span class="macro">writeln!</span>(<span class="kw-2">&mut </span>buffer)<span class="question-mark">?</span>; |
| <span class="macro">fail_point!</span>(<span class="string">"save_metas"</span>, |msg| <span class="prelude-val">Err</span>(<span class="kw">crate</span>::TantivyError::from( |
| std::io::Error::new( |
| std::io::ErrorKind::Other, |
| msg.unwrap_or_else(|| <span class="string">"Undefined"</span>.to_string()) |
| ) |
| ))); |
| directory.sync_directory()<span class="question-mark">?</span>; |
| directory.atomic_write(<span class="kw-2">&</span>META_FILEPATH, <span class="kw-2">&</span>buffer[..])<span class="question-mark">?</span>; |
| <span class="macro">debug!</span>(<span class="string">"Saved metas {:?}"</span>, serde_json::to_string_pretty(<span class="kw-2">&</span>metas)); |
| <span class="prelude-val">Ok</span>(()) |
| } |
| |
| <span class="comment">// The segment update runner is in charge of processing all |
| // of the `SegmentUpdate`s. |
| // |
| // All this processing happens on a single thread |
| // consuming a common queue. |
| // |
| // We voluntarily pass a merge_operation ref to guarantee that |
| // the merge_operation is alive during the process |
| </span><span class="attribute">#[derive(Clone)] |
| </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">struct </span>SegmentUpdater(Arc<InnerSegmentUpdater>); |
| |
| <span class="kw">impl </span>Deref <span class="kw">for </span>SegmentUpdater { |
| <span class="kw">type </span>Target = InnerSegmentUpdater; |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>deref(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span><span class="self">Self</span>::Target { |
| <span class="kw-2">&</span><span class="self">self</span>.<span class="number">0 |
| </span>} |
| } |
| |
| <span class="kw">fn </span>garbage_collect_files( |
| segment_updater: SegmentUpdater, |
| ) -> <span class="kw">crate</span>::Result<GarbageCollectionResult> { |
| <span class="macro">info!</span>(<span class="string">"Running garbage collection"</span>); |
| <span class="kw">let </span><span class="kw-2">mut </span>index = segment_updater.index.clone(); |
| index |
| .directory_mut() |
| .garbage_collect(<span class="kw">move </span>|| segment_updater.list_files()) |
| } |
| |
| <span class="doccomment">/// Merges a list of segments the list of segment givens in the `segment_entries`. |
| /// This function happens in the calling thread and is computationally expensive. |
| </span><span class="kw">fn </span>merge( |
| index: <span class="kw-2">&</span>Index, |
| <span class="kw-2">mut </span>segment_entries: Vec<SegmentEntry>, |
| target_opstamp: Opstamp, |
| ) -> <span class="kw">crate</span>::Result<<span class="prelude-ty">Option</span><SegmentEntry>> { |
| <span class="kw">let </span>num_docs = segment_entries |
| .iter() |
| .map(|segment| segment.meta().num_docs() <span class="kw">as </span>u64) |
| .sum::<u64>(); |
| <span class="kw">if </span>num_docs == <span class="number">0 </span>{ |
| <span class="kw">return </span><span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>); |
| } |
| |
| <span class="comment">// first we need to apply deletes to our segment. |
| </span><span class="kw">let </span>merged_segment = index.new_segment(); |
| |
| <span class="comment">// First we apply all of the delete to the merged segment, up to the target opstamp. |
| </span><span class="kw">for </span>segment_entry <span class="kw">in </span><span class="kw-2">&mut </span>segment_entries { |
| <span class="kw">let </span>segment = index.segment(segment_entry.meta().clone()); |
| advance_deletes(segment, segment_entry, target_opstamp)<span class="question-mark">?</span>; |
| } |
| |
| <span class="kw">let </span>delete_cursor = segment_entries[<span class="number">0</span>].delete_cursor().clone(); |
| |
| <span class="kw">let </span>segments: Vec<Segment> = segment_entries |
| .iter() |
| .map(|segment_entry| index.segment(segment_entry.meta().clone())) |
| .collect(); |
| |
| <span class="comment">// An IndexMerger is like a "view" of our merged segments. |
| </span><span class="kw">let </span>merger: IndexMerger = |
| IndexMerger::open(index.schema(), index.settings().clone(), <span class="kw-2">&</span>segments[..])<span class="question-mark">?</span>; |
| |
| <span class="comment">// ... we just serialize this index merger in our new segment to merge the segments. |
| </span><span class="kw">let </span>segment_serializer = SegmentSerializer::for_segment(merged_segment.clone(), <span class="bool-val">true</span>)<span class="question-mark">?</span>; |
| |
| <span class="kw">let </span>num_docs = merger.write(segment_serializer)<span class="question-mark">?</span>; |
| |
| <span class="kw">let </span>merged_segment_id = merged_segment.id(); |
| |
| <span class="kw">let </span>segment_meta = index.new_segment_meta(merged_segment_id, num_docs); |
| <span class="prelude-val">Ok</span>(<span class="prelude-val">Some</span>(SegmentEntry::new(segment_meta, delete_cursor, <span class="prelude-val">None</span>))) |
| } |
| |
| <span class="doccomment">/// Advanced: Merges a list of segments from different indices in a new index. |
| /// |
| /// Returns `TantivyError` if the indices list is empty or their |
| /// schemas don't match. |
| /// |
| /// `output_directory`: is assumed to be empty. |
| /// |
| /// # Warning |
| /// This function does NOT check or take the `IndexWriter` is running. It is not |
| /// meant to work if you have an `IndexWriter` running for the origin indices, or |
| /// the destination `Index`. |
| </span><span class="attribute">#[doc(hidden)] |
| </span><span class="kw">pub fn </span>merge_indices<T: Into<Box<<span class="kw">dyn </span>Directory>>>( |
| indices: <span class="kw-2">&</span>[Index], |
| output_directory: T, |
| ) -> <span class="kw">crate</span>::Result<Index> { |
| <span class="kw">if </span>indices.is_empty() { |
| <span class="comment">// If there are no indices to merge, there is no need to do anything. |
| </span><span class="kw">return </span><span class="prelude-val">Err</span>(<span class="kw">crate</span>::TantivyError::InvalidArgument( |
| <span class="string">"No indices given to merge"</span>.to_string(), |
| )); |
| } |
| |
| <span class="kw">let </span>target_settings = indices[<span class="number">0</span>].settings().clone(); |
| |
| <span class="comment">// let's check that all of the indices have the same index settings |
| </span><span class="kw">if </span>indices |
| .iter() |
| .skip(<span class="number">1</span>) |
| .any(|index| index.settings() != <span class="kw-2">&</span>target_settings) |
| { |
| <span class="kw">return </span><span class="prelude-val">Err</span>(<span class="kw">crate</span>::TantivyError::InvalidArgument( |
| <span class="string">"Attempt to merge indices with different index_settings"</span>.to_string(), |
| )); |
| } |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>segments: Vec<Segment> = Vec::new(); |
| <span class="kw">for </span>index <span class="kw">in </span>indices { |
| segments.extend(index.searchable_segments()<span class="question-mark">?</span>); |
| } |
| |
| <span class="kw">let </span>non_filter = segments.iter().map(|<span class="kw">_</span>| <span class="prelude-val">None</span>).collect::<Vec<<span class="kw">_</span>>>(); |
| merge_filtered_segments(<span class="kw-2">&</span>segments, target_settings, non_filter, output_directory) |
| } |
| |
| <span class="doccomment">/// Advanced: Merges a list of segments from different indices in a new index. |
| /// Additional you can provide a delete bitset for each segment to ignore doc_ids. |
| /// |
| /// Returns `TantivyError` if the indices list is empty or their |
| /// schemas don't match. |
| /// |
| /// `output_directory`: is assumed to be empty. |
| /// |
| /// # Warning |
| /// This function does NOT check or take the `IndexWriter` is running. It is not |
| /// meant to work if you have an `IndexWriter` running for the origin indices, or |
| /// the destination `Index`. |
| </span><span class="attribute">#[doc(hidden)] |
| </span><span class="kw">pub fn </span>merge_filtered_segments<T: Into<Box<<span class="kw">dyn </span>Directory>>>( |
| segments: <span class="kw-2">&</span>[Segment], |
| target_settings: IndexSettings, |
| filter_doc_ids: Vec<<span class="prelude-ty">Option</span><AliveBitSet>>, |
| output_directory: T, |
| ) -> <span class="kw">crate</span>::Result<Index> { |
| <span class="kw">if </span>segments.is_empty() { |
| <span class="comment">// If there are no indices to merge, there is no need to do anything. |
| </span><span class="kw">return </span><span class="prelude-val">Err</span>(<span class="kw">crate</span>::TantivyError::InvalidArgument( |
| <span class="string">"No segments given to merge"</span>.to_string(), |
| )); |
| } |
| |
| <span class="kw">let </span>target_schema = segments[<span class="number">0</span>].schema(); |
| |
| <span class="comment">// let's check that all of the indices have the same schema |
| </span><span class="kw">if </span>segments |
| .iter() |
| .skip(<span class="number">1</span>) |
| .any(|index| index.schema() != target_schema) |
| { |
| <span class="kw">return </span><span class="prelude-val">Err</span>(<span class="kw">crate</span>::TantivyError::InvalidArgument( |
| <span class="string">"Attempt to merge different schema indices"</span>.to_string(), |
| )); |
| } |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>merged_index = Index::create( |
| output_directory, |
| target_schema.clone(), |
| target_settings.clone(), |
| )<span class="question-mark">?</span>; |
| <span class="kw">let </span>merged_segment = merged_index.new_segment(); |
| <span class="kw">let </span>merged_segment_id = merged_segment.id(); |
| <span class="kw">let </span>merger: IndexMerger = IndexMerger::open_with_custom_alive_set( |
| merged_index.schema(), |
| merged_index.settings().clone(), |
| segments, |
| filter_doc_ids, |
| )<span class="question-mark">?</span>; |
| <span class="kw">let </span>segment_serializer = SegmentSerializer::for_segment(merged_segment, <span class="bool-val">true</span>)<span class="question-mark">?</span>; |
| <span class="kw">let </span>num_docs = merger.write(segment_serializer)<span class="question-mark">?</span>; |
| |
| <span class="kw">let </span>segment_meta = merged_index.new_segment_meta(merged_segment_id, num_docs); |
| |
| <span class="kw">let </span>stats = <span class="macro">format!</span>( |
| <span class="string">"Segments Merge: [{}]"</span>, |
| segments |
| .iter() |
| .fold(String::new(), |sum, current| <span class="macro">format!</span>( |
| <span class="string">"{}{} "</span>, |
| sum, |
| current.meta().id().uuid_string() |
| )) |
| .trim_end() |
| ); |
| |
| <span class="kw">let </span>index_meta = IndexMeta { |
| index_settings: target_settings, <span class="comment">// index_settings of all segments should be the same |
| </span>segments: <span class="macro">vec!</span>[segment_meta], |
| schema: target_schema, |
| opstamp: <span class="number">0u64</span>, |
| payload: <span class="prelude-val">Some</span>(stats), |
| }; |
| |
| <span class="comment">// save the meta.json |
| </span>save_metas(<span class="kw-2">&</span>index_meta, merged_index.directory_mut())<span class="question-mark">?</span>; |
| |
| <span class="prelude-val">Ok</span>(merged_index) |
| } |
| |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">struct </span>InnerSegmentUpdater { |
| <span class="comment">// we keep a copy of the current active IndexMeta to |
| // avoid loading the file every time we need it in the |
| // `SegmentUpdater`. |
| // |
| // This should be up to date as all update happen through |
| // the unique active `SegmentUpdater`. |
| </span>active_index_meta: RwLock<Arc<IndexMeta>>, |
| pool: ThreadPool, |
| merge_thread_pool: ThreadPool, |
| |
| index: Index, |
| segment_manager: SegmentManager, |
| merge_policy: RwLock<Arc<<span class="kw">dyn </span>MergePolicy>>, |
| killed: AtomicBool, |
| stamper: Stamper, |
| merge_operations: MergeOperationInventory, |
| } |
| |
| <span class="kw">impl </span>SegmentUpdater { |
| <span class="kw">pub fn </span>create( |
| index: Index, |
| stamper: Stamper, |
| delete_cursor: <span class="kw-2">&</span>DeleteCursor, |
| ) -> <span class="kw">crate</span>::Result<SegmentUpdater> { |
| <span class="kw">let </span>segments = index.searchable_segment_metas()<span class="question-mark">?</span>; |
| <span class="kw">let </span>segment_manager = SegmentManager::from_segments(segments, delete_cursor); |
| <span class="kw">let </span>pool = ThreadPoolBuilder::new() |
| .thread_name(|<span class="kw">_</span>| <span class="string">"segment_updater"</span>.to_string()) |
| .num_threads(<span class="number">1</span>) |
| .build() |
| .map_err(|<span class="kw">_</span>| { |
| <span class="kw">crate</span>::TantivyError::SystemError( |
| <span class="string">"Failed to spawn segment updater thread"</span>.to_string(), |
| ) |
| })<span class="question-mark">?</span>; |
| <span class="kw">let </span>merge_thread_pool = ThreadPoolBuilder::new() |
| .thread_name(|i| <span class="macro">format!</span>(<span class="string">"merge_thread_{i}"</span>)) |
| .num_threads(NUM_MERGE_THREADS) |
| .build() |
| .map_err(|<span class="kw">_</span>| { |
| <span class="kw">crate</span>::TantivyError::SystemError( |
| <span class="string">"Failed to spawn segment merging thread"</span>.to_string(), |
| ) |
| })<span class="question-mark">?</span>; |
| <span class="kw">let </span>index_meta = index.load_metas()<span class="question-mark">?</span>; |
| <span class="prelude-val">Ok</span>(SegmentUpdater(Arc::new(InnerSegmentUpdater { |
| active_index_meta: RwLock::new(Arc::new(index_meta)), |
| pool, |
| merge_thread_pool, |
| index, |
| segment_manager, |
| merge_policy: RwLock::new(Arc::new(DefaultMergePolicy::default())), |
| killed: AtomicBool::new(<span class="bool-val">false</span>), |
| stamper, |
| merge_operations: Default::default(), |
| }))) |
| } |
| |
| <span class="kw">pub fn </span>get_merge_policy(<span class="kw-2">&</span><span class="self">self</span>) -> Arc<<span class="kw">dyn </span>MergePolicy> { |
| <span class="self">self</span>.merge_policy.read().unwrap().clone() |
| } |
| |
| <span class="kw">pub fn </span>set_merge_policy(<span class="kw-2">&</span><span class="self">self</span>, merge_policy: Box<<span class="kw">dyn </span>MergePolicy>) { |
| <span class="kw">let </span>arc_merge_policy = Arc::from(merge_policy); |
| <span class="kw-2">*</span><span class="self">self</span>.merge_policy.write().unwrap() = arc_merge_policy; |
| } |
| |
| <span class="kw">fn </span>schedule_task<T: <span class="lifetime">'static </span>+ Send, F: FnOnce() -> <span class="kw">crate</span>::Result<T> + <span class="lifetime">'static </span>+ Send>( |
| <span class="kw-2">&</span><span class="self">self</span>, |
| task: F, |
| ) -> FutureResult<T> { |
| <span class="kw">if </span>!<span class="self">self</span>.is_alive() { |
| <span class="kw">return </span><span class="kw">crate</span>::TantivyError::SystemError(<span class="string">"Segment updater killed"</span>.to_string()).into(); |
| } |
| <span class="kw">let </span>(scheduled_result, sender) = FutureResult::create( |
| <span class="string">"A segment_updater future did not succeed. This should never happen."</span>, |
| ); |
| <span class="self">self</span>.pool.spawn(|| { |
| <span class="kw">let </span>task_result = task(); |
| <span class="kw">let _ </span>= sender.send(task_result); |
| }); |
| scheduled_result |
| } |
| |
| <span class="kw">pub fn </span>schedule_add_segment(<span class="kw-2">&</span><span class="self">self</span>, segment_entry: SegmentEntry) -> FutureResult<()> { |
| <span class="kw">let </span>segment_updater = <span class="self">self</span>.clone(); |
| <span class="self">self</span>.schedule_task(<span class="kw">move </span>|| { |
| segment_updater.segment_manager.add_segment(segment_entry); |
| segment_updater.consider_merge_options(); |
| <span class="prelude-val">Ok</span>(()) |
| }) |
| } |
| |
| <span class="doccomment">/// Orders `SegmentManager` to remove all segments |
| </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>remove_all_segments(<span class="kw-2">&</span><span class="self">self</span>) { |
| <span class="self">self</span>.segment_manager.remove_all_segments(); |
| } |
| |
| <span class="kw">pub fn </span>kill(<span class="kw-2">&mut </span><span class="self">self</span>) { |
| <span class="self">self</span>.killed.store(<span class="bool-val">true</span>, Ordering::Release); |
| } |
| |
| <span class="kw">pub fn </span>is_alive(<span class="kw-2">&</span><span class="self">self</span>) -> bool { |
| !<span class="self">self</span>.killed.load(Ordering::Acquire) |
| } |
| |
| <span class="doccomment">/// Apply deletes up to the target opstamp to all segments. |
| /// |
| /// The method returns copies of the segment entries, |
| /// updated with the delete information. |
| </span><span class="kw">fn </span>purge_deletes(<span class="kw-2">&</span><span class="self">self</span>, target_opstamp: Opstamp) -> <span class="kw">crate</span>::Result<Vec<SegmentEntry>> { |
| <span class="kw">let </span><span class="kw-2">mut </span>segment_entries = <span class="self">self</span>.segment_manager.segment_entries(); |
| <span class="kw">for </span>segment_entry <span class="kw">in </span><span class="kw-2">&mut </span>segment_entries { |
| <span class="kw">let </span>segment = <span class="self">self</span>.index.segment(segment_entry.meta().clone()); |
| advance_deletes(segment, segment_entry, target_opstamp)<span class="question-mark">?</span>; |
| } |
| <span class="prelude-val">Ok</span>(segment_entries) |
| } |
| |
| <span class="kw">pub fn </span>save_metas( |
| <span class="kw-2">&</span><span class="self">self</span>, |
| opstamp: Opstamp, |
| commit_message: <span class="prelude-ty">Option</span><String>, |
| ) -> <span class="kw">crate</span>::Result<()> { |
| <span class="kw">if </span><span class="self">self</span>.is_alive() { |
| <span class="kw">let </span>index = <span class="kw-2">&</span><span class="self">self</span>.index; |
| <span class="kw">let </span>directory = index.directory(); |
| <span class="kw">let </span><span class="kw-2">mut </span>commited_segment_metas = <span class="self">self</span>.segment_manager.committed_segment_metas(); |
| |
| <span class="comment">// We sort segment_readers by number of documents. |
| // This is an heuristic to make multithreading more efficient. |
| // |
| // This is not done at the searcher level because I had a strange |
| // use case in which I was dealing with a large static index, |
| // dispatched over 5 SSD drives. |
| // |
| // A `UnionDirectory` makes it possible to read from these |
| // 5 different drives and creates a meta.json on the fly. |
| // In order to optimize the throughput, it creates a lasagna of segments |
| // from the different drives. |
| // |
| // Segment 1 from disk 1, Segment 1 from disk 2, etc. |
| </span>commited_segment_metas.sort_by_key(|segment_meta| -(segment_meta.max_doc() <span class="kw">as </span>i32)); |
| <span class="kw">let </span>index_meta = IndexMeta { |
| index_settings: index.settings().clone(), |
| segments: commited_segment_metas, |
| schema: index.schema(), |
| opstamp, |
| payload: commit_message, |
| }; |
| <span class="comment">// TODO add context to the error. |
| </span>save_metas(<span class="kw-2">&</span>index_meta, directory.box_clone().borrow_mut())<span class="question-mark">?</span>; |
| <span class="self">self</span>.store_meta(<span class="kw-2">&</span>index_meta); |
| } |
| <span class="prelude-val">Ok</span>(()) |
| } |
| |
| <span class="kw">pub fn </span>schedule_garbage_collect(<span class="kw-2">&</span><span class="self">self</span>) -> FutureResult<GarbageCollectionResult> { |
| <span class="kw">let </span>self_clone = <span class="self">self</span>.clone(); |
| <span class="self">self</span>.schedule_task(<span class="kw">move </span>|| garbage_collect_files(self_clone)) |
| } |
| |
| <span class="doccomment">/// List the files that are useful to the index. |
| /// |
| /// This does not include lock files, or files that are obsolete |
| /// but have not yet been deleted by the garbage collector. |
| </span><span class="kw">fn </span>list_files(<span class="kw-2">&</span><span class="self">self</span>) -> HashSet<PathBuf> { |
| <span class="kw">let </span><span class="kw-2">mut </span>files: HashSet<PathBuf> = <span class="self">self |
| </span>.index |
| .list_all_segment_metas() |
| .into_iter() |
| .flat_map(|segment_meta| segment_meta.list_files()) |
| .collect(); |
| files.insert(META_FILEPATH.to_path_buf()); |
| files |
| } |
| |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>schedule_commit( |
| <span class="kw-2">&</span><span class="self">self</span>, |
| opstamp: Opstamp, |
| payload: <span class="prelude-ty">Option</span><String>, |
| ) -> FutureResult<Opstamp> { |
| <span class="kw">let </span>segment_updater: SegmentUpdater = <span class="self">self</span>.clone(); |
| <span class="self">self</span>.schedule_task(<span class="kw">move </span>|| { |
| <span class="kw">let </span>segment_entries = segment_updater.purge_deletes(opstamp)<span class="question-mark">?</span>; |
| segment_updater.segment_manager.commit(segment_entries); |
| segment_updater.save_metas(opstamp, payload)<span class="question-mark">?</span>; |
| <span class="kw">let _ </span>= garbage_collect_files(segment_updater.clone()); |
| segment_updater.consider_merge_options(); |
| <span class="prelude-val">Ok</span>(opstamp) |
| }) |
| } |
| |
| <span class="kw">fn </span>store_meta(<span class="kw-2">&</span><span class="self">self</span>, index_meta: <span class="kw-2">&</span>IndexMeta) { |
| <span class="kw-2">*</span><span class="self">self</span>.active_index_meta.write().unwrap() = Arc::new(index_meta.clone()); |
| } |
| |
| <span class="kw">fn </span>load_meta(<span class="kw-2">&</span><span class="self">self</span>) -> Arc<IndexMeta> { |
| <span class="self">self</span>.active_index_meta.read().unwrap().clone() |
| } |
| |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>make_merge_operation(<span class="kw-2">&</span><span class="self">self</span>, segment_ids: <span class="kw-2">&</span>[SegmentId]) -> MergeOperation { |
| <span class="kw">let </span>commit_opstamp = <span class="self">self</span>.load_meta().opstamp; |
| MergeOperation::new(<span class="kw-2">&</span><span class="self">self</span>.merge_operations, commit_opstamp, segment_ids.to_vec()) |
| } |
| |
| <span class="comment">// Starts a merge operation. This function will block until the merge operation is effectively |
| // started. Note that it does not wait for the merge to terminate. |
| // The calling thread should not be block for a long time, as this only involve waiting for the |
| // `SegmentUpdater` queue which in turns only contains lightweight operations. |
| // |
| // The merge itself happens on a different thread. |
| // |
| // When successful, this function returns a `Future` for a `Result<SegmentMeta>` that represents |
| // the actual outcome of the merge operation. |
| // |
| // It returns an error if for some reason the merge operation could not be started. |
| // |
| // At this point an error is not necessarily the sign of a malfunction. |
| // (e.g. A rollback could have happened, between the instant when the merge operation was |
| // suggested and the moment when it ended up being executed.) |
| // |
| // `segment_ids` is required to be non-empty. |
| </span><span class="kw">pub fn </span>start_merge( |
| <span class="kw-2">&</span><span class="self">self</span>, |
| merge_operation: MergeOperation, |
| ) -> FutureResult<<span class="prelude-ty">Option</span><SegmentMeta>> { |
| <span class="macro">assert!</span>( |
| !merge_operation.segment_ids().is_empty(), |
| <span class="string">"Segment_ids cannot be empty." |
| </span>); |
| |
| <span class="kw">let </span>segment_updater = <span class="self">self</span>.clone(); |
| <span class="kw">let </span>segment_entries: Vec<SegmentEntry> = <span class="kw">match </span><span class="self">self |
| </span>.segment_manager |
| .start_merge(merge_operation.segment_ids()) |
| { |
| <span class="prelude-val">Ok</span>(segment_entries) => segment_entries, |
| <span class="prelude-val">Err</span>(err) => { |
| <span class="macro">warn!</span>( |
| <span class="string">"Starting the merge failed for the following reason. This is not fatal. {}"</span>, |
| err |
| ); |
| <span class="kw">return </span>err.into(); |
| } |
| }; |
| |
| <span class="macro">info!</span>(<span class="string">"Starting merge - {:?}"</span>, merge_operation.segment_ids()); |
| |
| <span class="kw">let </span>(scheduled_result, merging_future_send) = |
| FutureResult::create(<span class="string">"Merge operation failed."</span>); |
| |
| <span class="self">self</span>.merge_thread_pool.spawn(<span class="kw">move </span>|| { |
| <span class="comment">// The fact that `merge_operation` is moved here is important. |
| // Its lifetime is used to track how many merging thread are currently running, |
| // as well as which segment is currently in merge and therefore should not be |
| // candidate for another merge. |
| </span><span class="kw">match </span>merge( |
| <span class="kw-2">&</span>segment_updater.index, |
| segment_entries, |
| merge_operation.target_opstamp(), |
| ) { |
| <span class="prelude-val">Ok</span>(after_merge_segment_entry) => { |
| <span class="kw">let </span>res = segment_updater.end_merge(merge_operation, after_merge_segment_entry); |
| <span class="kw">let </span>_send_result = merging_future_send.send(res); |
| } |
| <span class="prelude-val">Err</span>(merge_error) => { |
| <span class="macro">warn!</span>( |
| <span class="string">"Merge of {:?} was cancelled: {:?}"</span>, |
| merge_operation.segment_ids().to_vec(), |
| merge_error |
| ); |
| <span class="kw">if </span><span class="macro">cfg!</span>(test) { |
| <span class="macro">panic!</span>(<span class="string">"{:?}"</span>, merge_error); |
| } |
| <span class="kw">let </span>_send_result = merging_future_send.send(<span class="prelude-val">Err</span>(merge_error)); |
| } |
| } |
| }); |
| |
| scheduled_result |
| } |
| |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>get_mergeable_segments(<span class="kw-2">&</span><span class="self">self</span>) -> (Vec<SegmentMeta>, Vec<SegmentMeta>) { |
| <span class="kw">let </span>merge_segment_ids: HashSet<SegmentId> = <span class="self">self</span>.merge_operations.segment_in_merge(); |
| <span class="self">self</span>.segment_manager |
| .get_mergeable_segments(<span class="kw-2">&</span>merge_segment_ids) |
| } |
| |
| <span class="kw">fn </span>consider_merge_options(<span class="kw-2">&</span><span class="self">self</span>) { |
| <span class="kw">let </span>(committed_segments, uncommitted_segments) = <span class="self">self</span>.get_mergeable_segments(); |
| |
| <span class="comment">// Committed segments cannot be merged with uncommitted_segments. |
| // We therefore consider merges using these two sets of segments independently. |
| </span><span class="kw">let </span>merge_policy = <span class="self">self</span>.get_merge_policy(); |
| |
| <span class="kw">let </span>current_opstamp = <span class="self">self</span>.stamper.stamp(); |
| <span class="kw">let </span><span class="kw-2">mut </span>merge_candidates: Vec<MergeOperation> = merge_policy |
| .compute_merge_candidates(<span class="kw-2">&</span>uncommitted_segments) |
| .into_iter() |
| .map(|merge_candidate| { |
| MergeOperation::new(<span class="kw-2">&</span><span class="self">self</span>.merge_operations, current_opstamp, merge_candidate.<span class="number">0</span>) |
| }) |
| .collect(); |
| |
| <span class="kw">let </span>commit_opstamp = <span class="self">self</span>.load_meta().opstamp; |
| <span class="kw">let </span>committed_merge_candidates = merge_policy |
| .compute_merge_candidates(<span class="kw-2">&</span>committed_segments) |
| .into_iter() |
| .map(|merge_candidate: MergeCandidate| { |
| MergeOperation::new(<span class="kw-2">&</span><span class="self">self</span>.merge_operations, commit_opstamp, merge_candidate.<span class="number">0</span>) |
| }); |
| merge_candidates.extend(committed_merge_candidates); |
| |
| <span class="kw">for </span>merge_operation <span class="kw">in </span>merge_candidates { |
| <span class="comment">// If a merge cannot be started this is not a fatal error. |
| // We do log a warning in `start_merge`. |
| </span><span class="kw">let _ </span>= <span class="self">self</span>.start_merge(merge_operation); |
| } |
| } |
| |
| <span class="doccomment">/// Queues a `end_merge` in the segment updater and blocks until it is successfully processed. |
| </span><span class="kw">fn </span>end_merge( |
| <span class="kw-2">&</span><span class="self">self</span>, |
| merge_operation: MergeOperation, |
| <span class="kw-2">mut </span>after_merge_segment_entry: <span class="prelude-ty">Option</span><SegmentEntry>, |
| ) -> <span class="kw">crate</span>::Result<<span class="prelude-ty">Option</span><SegmentMeta>> { |
| <span class="kw">let </span>segment_updater = <span class="self">self</span>.clone(); |
| <span class="kw">let </span>after_merge_segment_meta = after_merge_segment_entry |
| .as_ref() |
| .map(|after_merge_segment_entry| after_merge_segment_entry.meta().clone()); |
| <span class="self">self</span>.schedule_task(<span class="kw">move </span>|| { |
| <span class="macro">info!</span>( |
| <span class="string">"End merge {:?}"</span>, |
| after_merge_segment_entry.as_ref().map(|entry| entry.meta()) |
| ); |
| { |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(after_merge_segment_entry) = after_merge_segment_entry.as_mut() { |
| <span class="kw">let </span><span class="kw-2">mut </span>delete_cursor = after_merge_segment_entry.delete_cursor().clone(); |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(delete_operation) = delete_cursor.get() { |
| <span class="kw">let </span>committed_opstamp = segment_updater.load_meta().opstamp; |
| <span class="kw">if </span>delete_operation.opstamp < committed_opstamp { |
| <span class="kw">let </span>index = <span class="kw-2">&</span>segment_updater.index; |
| <span class="kw">let </span>segment = index.segment(after_merge_segment_entry.meta().clone()); |
| <span class="kw">if let </span><span class="prelude-val">Err</span>(advance_deletes_err) = advance_deletes( |
| segment, |
| after_merge_segment_entry, |
| committed_opstamp, |
| ) { |
| <span class="macro">error!</span>( |
| <span class="string">"Merge of {:?} was cancelled (advancing deletes failed): {:?}"</span>, |
| merge_operation.segment_ids(), |
| advance_deletes_err |
| ); |
| <span class="macro">assert!</span>(!<span class="macro">cfg!</span>(test), <span class="string">"Merge failed."</span>); |
| |
| <span class="comment">// ... cancel merge |
| // `merge_operations` are tracked. As it is dropped, the |
| // the segment_ids will be available again for merge. |
| </span><span class="kw">return </span><span class="prelude-val">Err</span>(advance_deletes_err); |
| } |
| } |
| } |
| } |
| <span class="kw">let </span>previous_metas = segment_updater.load_meta(); |
| <span class="kw">let </span>segments_status = segment_updater |
| .segment_manager |
| .end_merge(merge_operation.segment_ids(), after_merge_segment_entry)<span class="question-mark">?</span>; |
| |
| <span class="kw">if </span>segments_status == SegmentsStatus::Committed { |
| segment_updater |
| .save_metas(previous_metas.opstamp, previous_metas.payload.clone())<span class="question-mark">?</span>; |
| } |
| |
| segment_updater.consider_merge_options(); |
| } <span class="comment">// we drop all possible handle to a now useless `SegmentMeta`. |
| |
| </span><span class="kw">let _ </span>= garbage_collect_files(segment_updater); |
| <span class="prelude-val">Ok</span>(()) |
| }) |
| .wait()<span class="question-mark">?</span>; |
| <span class="prelude-val">Ok</span>(after_merge_segment_meta) |
| } |
| |
| <span class="doccomment">/// Wait for current merging threads. |
| /// |
| /// Upon termination of the current merging threads, |
| /// merge opportunity may appear. |
| /// |
| /// We keep waiting until the merge policy judges that |
| /// no opportunity is available. |
| /// |
| /// Note that it is not required to call this |
| /// method in your application. |
| /// Terminating your application without letting |
| /// merge terminate is perfectly safe. |
| /// |
| /// Obsolete files will eventually be cleaned up |
| /// by the directory garbage collector. |
| </span><span class="kw">pub fn </span>wait_merging_thread(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw">crate</span>::Result<()> { |
| <span class="self">self</span>.merge_operations.wait_until_empty(); |
| <span class="prelude-val">Ok</span>(()) |
| } |
| } |
| |
| <span class="attribute">#[cfg(test)] |
| </span><span class="kw">mod </span>tests { |
| <span class="kw">use </span><span class="kw">super</span>::merge_indices; |
| <span class="kw">use </span><span class="kw">crate</span>::collector::TopDocs; |
| <span class="kw">use </span><span class="kw">crate</span>::directory::RamDirectory; |
| <span class="kw">use </span><span class="kw">crate</span>::fastfield::AliveBitSet; |
| <span class="kw">use </span><span class="kw">crate</span>::indexer::merge_policy::tests::MergeWheneverPossible; |
| <span class="kw">use </span><span class="kw">crate</span>::indexer::merger::IndexMerger; |
| <span class="kw">use </span><span class="kw">crate</span>::indexer::segment_updater::merge_filtered_segments; |
| <span class="kw">use </span><span class="kw">crate</span>::query::QueryParser; |
| <span class="kw">use </span><span class="kw">crate</span>::schema::<span class="kw-2">*</span>; |
| <span class="kw">use crate</span>::{Directory, DocAddress, Index, Segment}; |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_delete_during_merge() -> <span class="kw">crate</span>::Result<()> { |
| <span class="kw">let </span><span class="kw-2">mut </span>schema_builder = Schema::builder(); |
| <span class="kw">let </span>text_field = schema_builder.add_text_field(<span class="string">"text"</span>, TEXT); |
| <span class="kw">let </span>index = Index::create_in_ram(schema_builder.build()); |
| |
| <span class="comment">// writing the segment |
| </span><span class="kw">let </span><span class="kw-2">mut </span>index_writer = index.writer_for_tests()<span class="question-mark">?</span>; |
| index_writer.set_merge_policy(Box::new(MergeWheneverPossible)); |
| |
| <span class="kw">for _ in </span><span class="number">0</span>..<span class="number">100 </span>{ |
| index_writer.add_document(<span class="macro">doc!</span>(text_field=><span class="string">"a"</span>))<span class="question-mark">?</span>; |
| index_writer.add_document(<span class="macro">doc!</span>(text_field=><span class="string">"b"</span>))<span class="question-mark">?</span>; |
| } |
| index_writer.commit()<span class="question-mark">?</span>; |
| |
| <span class="kw">for _ in </span><span class="number">0</span>..<span class="number">100 </span>{ |
| index_writer.add_document(<span class="macro">doc!</span>(text_field=><span class="string">"c"</span>))<span class="question-mark">?</span>; |
| index_writer.add_document(<span class="macro">doc!</span>(text_field=><span class="string">"d"</span>))<span class="question-mark">?</span>; |
| } |
| index_writer.commit()<span class="question-mark">?</span>; |
| |
| index_writer.add_document(<span class="macro">doc!</span>(text_field=><span class="string">"e"</span>))<span class="question-mark">?</span>; |
| index_writer.add_document(<span class="macro">doc!</span>(text_field=><span class="string">"f"</span>))<span class="question-mark">?</span>; |
| index_writer.commit()<span class="question-mark">?</span>; |
| |
| <span class="kw">let </span>term = Term::from_field_text(text_field, <span class="string">"a"</span>); |
| index_writer.delete_term(term); |
| index_writer.commit()<span class="question-mark">?</span>; |
| |
| <span class="kw">let </span>reader = index.reader()<span class="question-mark">?</span>; |
| <span class="macro">assert_eq!</span>(reader.searcher().num_docs(), <span class="number">302</span>); |
| |
| index_writer.wait_merging_threads()<span class="question-mark">?</span>; |
| |
| reader.reload()<span class="question-mark">?</span>; |
| <span class="macro">assert_eq!</span>(reader.searcher().segment_readers().len(), <span class="number">1</span>); |
| <span class="macro">assert_eq!</span>(reader.searcher().num_docs(), <span class="number">302</span>); |
| <span class="prelude-val">Ok</span>(()) |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>delete_all_docs_min() -> <span class="kw">crate</span>::Result<()> { |
| <span class="kw">let </span><span class="kw-2">mut </span>schema_builder = Schema::builder(); |
| <span class="kw">let </span>text_field = schema_builder.add_text_field(<span class="string">"text"</span>, TEXT); |
| <span class="kw">let </span>index = Index::create_in_ram(schema_builder.build()); |
| |
| <span class="comment">// writing the segment |
| </span><span class="kw">let </span><span class="kw-2">mut </span>index_writer = index.writer_for_tests()<span class="question-mark">?</span>; |
| |
| <span class="kw">for _ in </span><span class="number">0</span>..<span class="number">10 </span>{ |
| index_writer.add_document(<span class="macro">doc!</span>(text_field=><span class="string">"a"</span>))<span class="question-mark">?</span>; |
| index_writer.add_document(<span class="macro">doc!</span>(text_field=><span class="string">"b"</span>))<span class="question-mark">?</span>; |
| } |
| index_writer.commit()<span class="question-mark">?</span>; |
| |
| <span class="kw">let </span>seg_ids = index.searchable_segment_ids()<span class="question-mark">?</span>; |
| <span class="comment">// docs exist, should have at least 1 segment |
| </span><span class="macro">assert!</span>(!seg_ids.is_empty()); |
| |
| <span class="kw">let </span>term = Term::from_field_text(text_field, <span class="string">"a"</span>); |
| index_writer.delete_term(term); |
| index_writer.commit()<span class="question-mark">?</span>; |
| |
| <span class="kw">let </span>term = Term::from_field_text(text_field, <span class="string">"b"</span>); |
| index_writer.delete_term(term); |
| index_writer.commit()<span class="question-mark">?</span>; |
| |
| index_writer.wait_merging_threads()<span class="question-mark">?</span>; |
| |
| <span class="kw">let </span>reader = index.reader()<span class="question-mark">?</span>; |
| <span class="macro">assert_eq!</span>(reader.searcher().num_docs(), <span class="number">0</span>); |
| |
| <span class="kw">let </span>seg_ids = index.searchable_segment_ids()<span class="question-mark">?</span>; |
| <span class="macro">assert!</span>(seg_ids.is_empty()); |
| |
| reader.reload()<span class="question-mark">?</span>; |
| <span class="macro">assert_eq!</span>(reader.searcher().num_docs(), <span class="number">0</span>); |
| <span class="comment">// empty segments should be erased |
| </span><span class="macro">assert!</span>(index.searchable_segment_metas()<span class="question-mark">?</span>.is_empty()); |
| <span class="macro">assert!</span>(reader.searcher().segment_readers().is_empty()); |
| |
| <span class="prelude-val">Ok</span>(()) |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>delete_all_docs() -> <span class="kw">crate</span>::Result<()> { |
| <span class="kw">let </span><span class="kw-2">mut </span>schema_builder = Schema::builder(); |
| <span class="kw">let </span>text_field = schema_builder.add_text_field(<span class="string">"text"</span>, TEXT); |
| <span class="kw">let </span>index = Index::create_in_ram(schema_builder.build()); |
| |
| <span class="comment">// writing the segment |
| </span><span class="kw">let </span><span class="kw-2">mut </span>index_writer = index.writer_for_tests()<span class="question-mark">?</span>; |
| |
| <span class="kw">for _ in </span><span class="number">0</span>..<span class="number">100 </span>{ |
| index_writer.add_document(<span class="macro">doc!</span>(text_field=><span class="string">"a"</span>))<span class="question-mark">?</span>; |
| index_writer.add_document(<span class="macro">doc!</span>(text_field=><span class="string">"b"</span>))<span class="question-mark">?</span>; |
| } |
| index_writer.commit()<span class="question-mark">?</span>; |
| |
| <span class="kw">for _ in </span><span class="number">0</span>..<span class="number">100 </span>{ |
| index_writer.add_document(<span class="macro">doc!</span>(text_field=><span class="string">"c"</span>))<span class="question-mark">?</span>; |
| index_writer.add_document(<span class="macro">doc!</span>(text_field=><span class="string">"d"</span>))<span class="question-mark">?</span>; |
| } |
| index_writer.commit()<span class="question-mark">?</span>; |
| |
| index_writer.add_document(<span class="macro">doc!</span>(text_field=><span class="string">"e"</span>))<span class="question-mark">?</span>; |
| index_writer.add_document(<span class="macro">doc!</span>(text_field=><span class="string">"f"</span>))<span class="question-mark">?</span>; |
| index_writer.commit()<span class="question-mark">?</span>; |
| |
| <span class="kw">let </span>seg_ids = index.searchable_segment_ids()<span class="question-mark">?</span>; |
| <span class="comment">// docs exist, should have at least 1 segment |
| </span><span class="macro">assert!</span>(!seg_ids.is_empty()); |
| |
| <span class="kw">let </span>term_vals = <span class="macro">vec!</span>[<span class="string">"a"</span>, <span class="string">"b"</span>, <span class="string">"c"</span>, <span class="string">"d"</span>, <span class="string">"e"</span>, <span class="string">"f"</span>]; |
| <span class="kw">for </span>term_val <span class="kw">in </span>term_vals { |
| <span class="kw">let </span>term = Term::from_field_text(text_field, term_val); |
| index_writer.delete_term(term); |
| index_writer.commit()<span class="question-mark">?</span>; |
| } |
| |
| index_writer.wait_merging_threads()<span class="question-mark">?</span>; |
| |
| <span class="kw">let </span>reader = index.reader()<span class="question-mark">?</span>; |
| <span class="macro">assert_eq!</span>(reader.searcher().num_docs(), <span class="number">0</span>); |
| |
| <span class="kw">let </span>seg_ids = index.searchable_segment_ids()<span class="question-mark">?</span>; |
| <span class="macro">assert!</span>(seg_ids.is_empty()); |
| |
| reader.reload()<span class="question-mark">?</span>; |
| <span class="macro">assert_eq!</span>(reader.searcher().num_docs(), <span class="number">0</span>); |
| <span class="comment">// empty segments should be erased |
| </span><span class="macro">assert!</span>(index.searchable_segment_metas()<span class="question-mark">?</span>.is_empty()); |
| <span class="macro">assert!</span>(reader.searcher().segment_readers().is_empty()); |
| |
| <span class="prelude-val">Ok</span>(()) |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_remove_all_segments() -> <span class="kw">crate</span>::Result<()> { |
| <span class="kw">let </span><span class="kw-2">mut </span>schema_builder = Schema::builder(); |
| <span class="kw">let </span>text_field = schema_builder.add_text_field(<span class="string">"text"</span>, TEXT); |
| <span class="kw">let </span>index = Index::create_in_ram(schema_builder.build()); |
| |
| <span class="comment">// writing the segment |
| </span><span class="kw">let </span><span class="kw-2">mut </span>index_writer = index.writer_for_tests()<span class="question-mark">?</span>; |
| <span class="kw">for _ in </span><span class="number">0</span>..<span class="number">100 </span>{ |
| index_writer.add_document(<span class="macro">doc!</span>(text_field=><span class="string">"a"</span>))<span class="question-mark">?</span>; |
| index_writer.add_document(<span class="macro">doc!</span>(text_field=><span class="string">"b"</span>))<span class="question-mark">?</span>; |
| } |
| index_writer.commit()<span class="question-mark">?</span>; |
| |
| index_writer.segment_updater().remove_all_segments(); |
| <span class="kw">let </span>seg_vec = index_writer |
| .segment_updater() |
| .segment_manager |
| .segment_entries(); |
| <span class="macro">assert!</span>(seg_vec.is_empty()); |
| <span class="prelude-val">Ok</span>(()) |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_merge_segments() -> <span class="kw">crate</span>::Result<()> { |
| <span class="kw">let </span><span class="kw-2">mut </span>indices = <span class="macro">vec!</span>[]; |
| <span class="kw">let </span><span class="kw-2">mut </span>schema_builder = Schema::builder(); |
| <span class="kw">let </span>text_field = schema_builder.add_text_field(<span class="string">"text"</span>, TEXT); |
| <span class="kw">let </span>schema = schema_builder.build(); |
| |
| <span class="kw">for _ in </span><span class="number">0</span>..<span class="number">3 </span>{ |
| <span class="kw">let </span>index = Index::create_in_ram(schema.clone()); |
| |
| <span class="comment">// writing two segments |
| </span><span class="kw">let </span><span class="kw-2">mut </span>index_writer = index.writer_for_tests()<span class="question-mark">?</span>; |
| <span class="kw">for _ in </span><span class="number">0</span>..<span class="number">100 </span>{ |
| index_writer.add_document(<span class="macro">doc!</span>(text_field=><span class="string">"fizz"</span>))<span class="question-mark">?</span>; |
| index_writer.add_document(<span class="macro">doc!</span>(text_field=><span class="string">"buzz"</span>))<span class="question-mark">?</span>; |
| } |
| index_writer.commit()<span class="question-mark">?</span>; |
| |
| <span class="kw">for _ in </span><span class="number">0</span>..<span class="number">1000 </span>{ |
| index_writer.add_document(<span class="macro">doc!</span>(text_field=><span class="string">"foo"</span>))<span class="question-mark">?</span>; |
| index_writer.add_document(<span class="macro">doc!</span>(text_field=><span class="string">"bar"</span>))<span class="question-mark">?</span>; |
| } |
| index_writer.commit()<span class="question-mark">?</span>; |
| indices.push(index); |
| } |
| |
| <span class="macro">assert_eq!</span>(indices.len(), <span class="number">3</span>); |
| <span class="kw">let </span>output_directory: Box<<span class="kw">dyn </span>Directory> = Box::new(RamDirectory::default()); |
| <span class="kw">let </span>index = merge_indices(<span class="kw-2">&</span>indices, output_directory)<span class="question-mark">?</span>; |
| <span class="macro">assert_eq!</span>(index.schema(), schema); |
| |
| <span class="kw">let </span>segments = index.searchable_segments()<span class="question-mark">?</span>; |
| <span class="macro">assert_eq!</span>(segments.len(), <span class="number">1</span>); |
| |
| <span class="kw">let </span>segment_metas = segments[<span class="number">0</span>].meta(); |
| <span class="macro">assert_eq!</span>(segment_metas.num_deleted_docs(), <span class="number">0</span>); |
| <span class="macro">assert_eq!</span>(segment_metas.num_docs(), <span class="number">6600</span>); |
| <span class="prelude-val">Ok</span>(()) |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_merge_empty_indices_array() { |
| <span class="kw">let </span>merge_result = merge_indices(<span class="kw-2">&</span>[], RamDirectory::default()); |
| <span class="macro">assert!</span>(merge_result.is_err()); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_merge_mismatched_schema() -> <span class="kw">crate</span>::Result<()> { |
| <span class="kw">let </span>first_index = { |
| <span class="kw">let </span><span class="kw-2">mut </span>schema_builder = Schema::builder(); |
| <span class="kw">let </span>text_field = schema_builder.add_text_field(<span class="string">"text"</span>, TEXT); |
| <span class="kw">let </span>index = Index::create_in_ram(schema_builder.build()); |
| <span class="kw">let </span><span class="kw-2">mut </span>index_writer = index.writer_for_tests()<span class="question-mark">?</span>; |
| index_writer.add_document(<span class="macro">doc!</span>(text_field=><span class="string">"some text"</span>))<span class="question-mark">?</span>; |
| index_writer.commit()<span class="question-mark">?</span>; |
| index |
| }; |
| |
| <span class="kw">let </span>second_index = { |
| <span class="kw">let </span><span class="kw-2">mut </span>schema_builder = Schema::builder(); |
| <span class="kw">let </span>body_field = schema_builder.add_text_field(<span class="string">"body"</span>, TEXT); |
| <span class="kw">let </span>index = Index::create_in_ram(schema_builder.build()); |
| <span class="kw">let </span><span class="kw-2">mut </span>index_writer = index.writer_for_tests()<span class="question-mark">?</span>; |
| index_writer.add_document(<span class="macro">doc!</span>(body_field=><span class="string">"some body"</span>))<span class="question-mark">?</span>; |
| index_writer.commit()<span class="question-mark">?</span>; |
| index |
| }; |
| |
| <span class="comment">// mismatched schema index list |
| </span><span class="kw">let </span>result = merge_indices(<span class="kw-2">&</span>[first_index, second_index], RamDirectory::default()); |
| <span class="macro">assert!</span>(result.is_err()); |
| |
| <span class="prelude-val">Ok</span>(()) |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_merge_filtered_segments() -> <span class="kw">crate</span>::Result<()> { |
| <span class="kw">let </span>first_index = { |
| <span class="kw">let </span><span class="kw-2">mut </span>schema_builder = Schema::builder(); |
| <span class="kw">let </span>text_field = schema_builder.add_text_field(<span class="string">"text"</span>, TEXT); |
| <span class="kw">let </span>index = Index::create_in_ram(schema_builder.build()); |
| <span class="kw">let </span><span class="kw-2">mut </span>index_writer = index.writer_for_tests()<span class="question-mark">?</span>; |
| index_writer.add_document(<span class="macro">doc!</span>(text_field=><span class="string">"some text 1"</span>))<span class="question-mark">?</span>; |
| index_writer.add_document(<span class="macro">doc!</span>(text_field=><span class="string">"some text 2"</span>))<span class="question-mark">?</span>; |
| index_writer.commit()<span class="question-mark">?</span>; |
| index |
| }; |
| |
| <span class="kw">let </span>second_index = { |
| <span class="kw">let </span><span class="kw-2">mut </span>schema_builder = Schema::builder(); |
| <span class="kw">let </span>text_field = schema_builder.add_text_field(<span class="string">"text"</span>, TEXT); |
| <span class="kw">let </span>index = Index::create_in_ram(schema_builder.build()); |
| <span class="kw">let </span><span class="kw-2">mut </span>index_writer = index.writer_for_tests()<span class="question-mark">?</span>; |
| index_writer.add_document(<span class="macro">doc!</span>(text_field=><span class="string">"some text 3"</span>))<span class="question-mark">?</span>; |
| index_writer.add_document(<span class="macro">doc!</span>(text_field=><span class="string">"some text 4"</span>))<span class="question-mark">?</span>; |
| index_writer.delete_term(Term::from_field_text(text_field, <span class="string">"4"</span>)); |
| |
| index_writer.commit()<span class="question-mark">?</span>; |
| index |
| }; |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>segments: Vec<Segment> = Vec::new(); |
| segments.extend(first_index.searchable_segments()<span class="question-mark">?</span>); |
| segments.extend(second_index.searchable_segments()<span class="question-mark">?</span>); |
| |
| <span class="kw">let </span>target_settings = first_index.settings().clone(); |
| |
| <span class="kw">let </span>filter_segment_1 = AliveBitSet::for_test_from_deleted_docs(<span class="kw-2">&</span>[<span class="number">1</span>], <span class="number">2</span>); |
| <span class="kw">let </span>filter_segment_2 = AliveBitSet::for_test_from_deleted_docs(<span class="kw-2">&</span>[<span class="number">0</span>], <span class="number">2</span>); |
| |
| <span class="kw">let </span>filter_segments = <span class="macro">vec!</span>[<span class="prelude-val">Some</span>(filter_segment_1), <span class="prelude-val">Some</span>(filter_segment_2)]; |
| |
| <span class="kw">let </span>merged_index = merge_filtered_segments( |
| <span class="kw-2">&</span>segments, |
| target_settings, |
| filter_segments, |
| RamDirectory::default(), |
| )<span class="question-mark">?</span>; |
| |
| <span class="kw">let </span>segments = merged_index.searchable_segments()<span class="question-mark">?</span>; |
| <span class="macro">assert_eq!</span>(segments.len(), <span class="number">1</span>); |
| |
| <span class="kw">let </span>segment_metas = segments[<span class="number">0</span>].meta(); |
| <span class="macro">assert_eq!</span>(segment_metas.num_deleted_docs(), <span class="number">0</span>); |
| <span class="macro">assert_eq!</span>(segment_metas.num_docs(), <span class="number">1</span>); |
| |
| <span class="prelude-val">Ok</span>(()) |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_merge_single_filtered_segments() -> <span class="kw">crate</span>::Result<()> { |
| <span class="kw">let </span>first_index = { |
| <span class="kw">let </span><span class="kw-2">mut </span>schema_builder = Schema::builder(); |
| <span class="kw">let </span>text_field = schema_builder.add_text_field(<span class="string">"text"</span>, TEXT); |
| <span class="kw">let </span>index = Index::create_in_ram(schema_builder.build()); |
| <span class="kw">let </span><span class="kw-2">mut </span>index_writer = index.writer_for_tests()<span class="question-mark">?</span>; |
| index_writer.add_document(<span class="macro">doc!</span>(text_field=><span class="string">"test text"</span>))<span class="question-mark">?</span>; |
| index_writer.add_document(<span class="macro">doc!</span>(text_field=><span class="string">"some text 2"</span>))<span class="question-mark">?</span>; |
| |
| index_writer.add_document(<span class="macro">doc!</span>(text_field=><span class="string">"some text 3"</span>))<span class="question-mark">?</span>; |
| index_writer.add_document(<span class="macro">doc!</span>(text_field=><span class="string">"some text 4"</span>))<span class="question-mark">?</span>; |
| |
| index_writer.delete_term(Term::from_field_text(text_field, <span class="string">"4"</span>)); |
| |
| index_writer.commit()<span class="question-mark">?</span>; |
| index |
| }; |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>segments: Vec<Segment> = Vec::new(); |
| segments.extend(first_index.searchable_segments()<span class="question-mark">?</span>); |
| |
| <span class="kw">let </span>target_settings = first_index.settings().clone(); |
| |
| <span class="kw">let </span>filter_segment = AliveBitSet::for_test_from_deleted_docs(<span class="kw-2">&</span>[<span class="number">0</span>], <span class="number">4</span>); |
| |
| <span class="kw">let </span>filter_segments = <span class="macro">vec!</span>[<span class="prelude-val">Some</span>(filter_segment)]; |
| |
| <span class="kw">let </span>index = merge_filtered_segments( |
| <span class="kw-2">&</span>segments, |
| target_settings, |
| filter_segments, |
| RamDirectory::default(), |
| )<span class="question-mark">?</span>; |
| |
| <span class="kw">let </span>segments = index.searchable_segments()<span class="question-mark">?</span>; |
| <span class="macro">assert_eq!</span>(segments.len(), <span class="number">1</span>); |
| |
| <span class="kw">let </span>segment_metas = segments[<span class="number">0</span>].meta(); |
| <span class="macro">assert_eq!</span>(segment_metas.num_deleted_docs(), <span class="number">0</span>); |
| <span class="macro">assert_eq!</span>(segment_metas.num_docs(), <span class="number">2</span>); |
| |
| <span class="kw">let </span>searcher = index.reader()<span class="question-mark">?</span>.searcher(); |
| { |
| <span class="kw">let </span>text_field = index.schema().get_field(<span class="string">"text"</span>).unwrap(); |
| |
| <span class="kw">let </span>do_search = |term: <span class="kw-2">&</span>str| { |
| <span class="kw">let </span>query = QueryParser::for_index(<span class="kw-2">&</span>index, <span class="macro">vec!</span>[text_field]) |
| .parse_query(term) |
| .unwrap(); |
| <span class="kw">let </span>top_docs: Vec<(f32, DocAddress)> = |
| searcher.search(<span class="kw-2">&</span>query, <span class="kw-2">&</span>TopDocs::with_limit(<span class="number">3</span>)).unwrap(); |
| |
| top_docs.iter().map(|el| el.<span class="number">1</span>.doc_id).collect::<Vec<<span class="kw">_</span>>>() |
| }; |
| |
| <span class="macro">assert_eq!</span>(do_search(<span class="string">"test"</span>), <span class="macro">vec!</span>[] <span class="kw">as </span>Vec<u32>); |
| <span class="macro">assert_eq!</span>(do_search(<span class="string">"text"</span>), <span class="macro">vec!</span>[<span class="number">0</span>, <span class="number">1</span>]); |
| } |
| |
| <span class="prelude-val">Ok</span>(()) |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_apply_doc_id_filter_in_merger() -> <span class="kw">crate</span>::Result<()> { |
| <span class="kw">let </span>first_index = { |
| <span class="kw">let </span><span class="kw-2">mut </span>schema_builder = Schema::builder(); |
| <span class="kw">let </span>text_field = schema_builder.add_text_field(<span class="string">"text"</span>, TEXT); |
| <span class="kw">let </span>index = Index::create_in_ram(schema_builder.build()); |
| <span class="kw">let </span><span class="kw-2">mut </span>index_writer = index.writer_for_tests()<span class="question-mark">?</span>; |
| index_writer.add_document(<span class="macro">doc!</span>(text_field=><span class="string">"some text 1"</span>))<span class="question-mark">?</span>; |
| index_writer.add_document(<span class="macro">doc!</span>(text_field=><span class="string">"some text 2"</span>))<span class="question-mark">?</span>; |
| |
| index_writer.add_document(<span class="macro">doc!</span>(text_field=><span class="string">"some text 3"</span>))<span class="question-mark">?</span>; |
| index_writer.add_document(<span class="macro">doc!</span>(text_field=><span class="string">"some text 4"</span>))<span class="question-mark">?</span>; |
| |
| index_writer.delete_term(Term::from_field_text(text_field, <span class="string">"4"</span>)); |
| |
| index_writer.commit()<span class="question-mark">?</span>; |
| index |
| }; |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>segments: Vec<Segment> = Vec::new(); |
| segments.extend(first_index.searchable_segments()<span class="question-mark">?</span>); |
| |
| <span class="kw">let </span>target_settings = first_index.settings().clone(); |
| { |
| <span class="kw">let </span>filter_segment = AliveBitSet::for_test_from_deleted_docs(<span class="kw-2">&</span>[<span class="number">1</span>], <span class="number">4</span>); |
| <span class="kw">let </span>filter_segments = <span class="macro">vec!</span>[<span class="prelude-val">Some</span>(filter_segment)]; |
| <span class="kw">let </span>target_schema = segments[<span class="number">0</span>].schema(); |
| <span class="kw">let </span>merged_index = Index::create( |
| RamDirectory::default(), |
| target_schema, |
| target_settings.clone(), |
| )<span class="question-mark">?</span>; |
| <span class="kw">let </span>merger: IndexMerger = IndexMerger::open_with_custom_alive_set( |
| merged_index.schema(), |
| merged_index.settings().clone(), |
| <span class="kw-2">&</span>segments[..], |
| filter_segments, |
| )<span class="question-mark">?</span>; |
| |
| <span class="kw">let </span>doc_ids_alive: Vec<<span class="kw">_</span>> = merger.readers[<span class="number">0</span>].doc_ids_alive().collect(); |
| <span class="macro">assert_eq!</span>(doc_ids_alive, <span class="macro">vec!</span>[<span class="number">0</span>, <span class="number">2</span>]); |
| } |
| |
| { |
| <span class="kw">let </span>filter_segments = <span class="macro">vec!</span>[<span class="prelude-val">None</span>]; |
| <span class="kw">let </span>target_schema = segments[<span class="number">0</span>].schema(); |
| <span class="kw">let </span>merged_index = |
| Index::create(RamDirectory::default(), target_schema, target_settings)<span class="question-mark">?</span>; |
| <span class="kw">let </span>merger: IndexMerger = IndexMerger::open_with_custom_alive_set( |
| merged_index.schema(), |
| merged_index.settings().clone(), |
| <span class="kw-2">&</span>segments[..], |
| filter_segments, |
| )<span class="question-mark">?</span>; |
| |
| <span class="kw">let </span>doc_ids_alive: Vec<<span class="kw">_</span>> = merger.readers[<span class="number">0</span>].doc_ids_alive().collect(); |
| <span class="macro">assert_eq!</span>(doc_ids_alive, <span class="macro">vec!</span>[<span class="number">0</span>, <span class="number">1</span>, <span class="number">2</span>]); |
| } |
| |
| <span class="prelude-val">Ok</span>(()) |
| } |
| } |
| </code></pre></div> |
| </section></div></main><div id="rustdoc-vars" data-root-path="../../../" data-current-crate="tantivy" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |
