| import{_ as a,O as s,P as e,ah as n,aW as t}from"./framework-e4340ccd.js";const o={},r=t(`<h1 id="data-archiving" tabindex="-1"><a class="header-anchor" href="#data-archiving" aria-hidden="true">#</a> Data Archiving</h1><p>The data archiving tools consist of 5 Cli commands: <code>set</code>, <code>cancel</code>, <code>pause</code>, <code>continue</code>, and <code>show</code>. Users may use archiving tools to create archiving tasks, these archiving tasks start at the user specified date, and archives expired data (timestamp before expire time) into a target directory specified by user, the user can then perform other operations such as <code>pause</code> on the tasks.</p><h2 id="sql-statements" tabindex="-1"><a class="header-anchor" href="#sql-statements" aria-hidden="true">#</a> SQL statements</h2><h3 id="show-archiving-tasks" tabindex="-1"><a class="header-anchor" href="#show-archiving-tasks" aria-hidden="true">#</a> Show Archiving Tasks</h3><p>Show the data archiving tasks.</p><h4 id="syntax" tabindex="-1"><a class="header-anchor" href="#syntax" aria-hidden="true">#</a> Syntax</h4><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token keyword">SHOW</span> ARCHIVING |
| <span class="token keyword">SHOW</span> <span class="token keyword">ALL</span> ARCHIVING |
| <span class="token keyword">SHOW</span> ARCHIVING <span class="token keyword">ON</span> <span class="token operator"><</span>storage_group<span class="token operator">></span> |
| <span class="token keyword">SHOW</span> <span class="token keyword">ALL</span> ARCHIVING <span class="token keyword">ON</span> <span class="token operator"><</span>storage_group<span class="token operator">></span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><ul><li><code><storage_group></code> specifies the storage group to show archiving task on.</li><li><code>all</code> By default, only tasks in the READY, RUNNING, and PAUSED states are returned. You can view tasks in other states by adding the all parameter.</li></ul><h4 id="example-result" tabindex="-1"><a class="header-anchor" href="#example-result" aria-hidden="true">#</a> Example Result</h4><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token operator">+</span><span class="token comment">-------+---------------------------+-------------+------+---------------------------+---------------+----------------+</span> |
| <span class="token operator">|</span>task id<span class="token operator">|</span> submit <span class="token keyword">time</span><span class="token operator">|</span>storage <span class="token keyword">group</span><span class="token operator">|</span><span class="token keyword">status</span><span class="token operator">|</span> <span class="token keyword">start</span> <span class="token keyword">time</span><span class="token operator">|</span>expire <span class="token keyword">time</span><span class="token punctuation">(</span>ms<span class="token punctuation">)</span><span class="token operator">|</span>target directory<span class="token operator">|</span> |
| <span class="token operator">+</span><span class="token comment">-------+---------------------------+-------------+------+---------------------------+---------------+----------------+</span> |
| <span class="token operator">|</span> <span class="token number">0</span><span class="token operator">|</span><span class="token number">2022</span><span class="token operator">-</span><span class="token number">1</span><span class="token operator">-</span><span class="token number">1</span>T00:<span class="token number">00</span>:<span class="token number">00.000</span><span class="token operator">+</span><span class="token number">08</span>:<span class="token number">00</span><span class="token operator">|</span> root<span class="token punctuation">.</span>ln<span class="token operator">|</span> READY<span class="token operator">|</span><span class="token number">2023</span><span class="token operator">-</span><span class="token number">1</span><span class="token operator">-</span><span class="token number">1</span>T00:<span class="token number">00</span>:<span class="token number">00.000</span><span class="token operator">+</span><span class="token number">08</span>:<span class="token number">00</span><span class="token operator">|</span> <span class="token number">360000</span><span class="token operator">|</span> <span class="token operator">/</span>tmp<span class="token operator">|</span> |
| <span class="token operator">+</span><span class="token comment">-------+---------------------------+-------------+------+---------------------------+---------------+----------------+</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="set-data-archiving-task" tabindex="-1"><a class="header-anchor" href="#set-data-archiving-task" aria-hidden="true">#</a> Set Data Archiving Task</h3><p>User submit data archiving task.</p><h4 id="syntax-1" tabindex="-1"><a class="header-anchor" href="#syntax-1" aria-hidden="true">#</a> Syntax</h4><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token keyword">SET</span> ARCHIVING <span class="token keyword">TO</span> <span class="token operator"><</span>storage_group<span class="token operator">></span> <span class="token operator"><</span>start_time<span class="token operator">></span> <span class="token operator"><</span>ttl<span class="token operator">></span> <span class="token operator"><</span>target_dir<span class="token operator">></span> |
| <span class="token keyword">SET</span> ARCHIVING <span class="token keyword">TO</span> storage_group<span class="token operator">=</span><span class="token operator"><</span>storage_group<span class="token operator">></span> start_time<span class="token operator">=</span><span class="token operator"><</span>start_time<span class="token operator">></span> ttl<span class="token operator">=</span><span class="token operator"><</span>ttl<span class="token operator">></span> target_dir<span class="token operator">=</span><span class="token operator"><</span>target_dir<span class="token operator">></span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div></div></div><ul><li><code><storage_group></code> specifies the storage group to show archiving task on.</li><li><code><start_time></code> specifies the date to start the archiving task.</li><li><code><ttl></code> specifies the expire time for task, data with <code>timestamp < now - ttl</code> are archived, units in milliseconds.</li><li><code><target_dir></code> specifies the target directory to move the archived data, uses string for the path.</li></ul><h4 id="example" tabindex="-1"><a class="header-anchor" href="#example" aria-hidden="true">#</a> Example</h4><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code><span class="token keyword">SET</span> ARCHIVING <span class="token keyword">TO</span> storage_group<span class="token operator">=</span>root<span class="token punctuation">.</span>ln start_time<span class="token operator">=</span><span class="token number">2023</span><span class="token operator">-</span><span class="token number">01</span><span class="token operator">-</span><span class="token number">01</span> ttl<span class="token operator">=</span><span class="token number">360000</span> target_dir<span class="token operator">=</span><span class="token string">"/tmp"</span> |
| <span class="token keyword">SET</span> ARCHIVING <span class="token keyword">TO</span> root<span class="token punctuation">.</span>ln <span class="token number">2023</span><span class="token operator">-</span><span class="token number">01</span><span class="token operator">-</span><span class="token number">01</span> <span class="token number">360000</span> <span class="token string">"/tmp"</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div></div></div><h4 id="tips" tabindex="-1"><a class="header-anchor" href="#tips" aria-hidden="true">#</a> Tips</h4><ul><li><code>A=</code> (such as <code>storage_group=</code>) in the Cli commands can be omitted, the order after omission must be the same as the above.</li><li>The start time is in ISO 8601 format, so information such as hour/minute/second can be omitted, and it is set to 0 by default after being omitted.</li><li><code>SET</code> command is able to submit migration tasks for all storage groups by parameters like <code>root.ln.**</code>.</li></ul><h3 id="cancel-archiving-task" tabindex="-1"><a class="header-anchor" href="#cancel-archiving-task" aria-hidden="true">#</a> Cancel Archiving Task</h3><p>Stop and delete the data archiving task. (Note: data that has been archived will not be put back into the database)</p><h4 id="syntax-2" tabindex="-1"><a class="header-anchor" href="#syntax-2" aria-hidden="true">#</a> Syntax</h4><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>CANCEL ARCHIVING <span class="token operator"><</span>task_id<span class="token operator">></span> |
| CANCEL ARCHIVING <span class="token keyword">ON</span> <span class="token operator"><</span>storage_group<span class="token operator">></span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div></div></div><ul><li><code><task_id></code> specifies the id of archiving task to cancel.</li><li><code><storage_group></code> specifies the storage group to cancel archiving task, if many exist cancel the one with the lowest start time.</li></ul><h4 id="example-1" tabindex="-1"><a class="header-anchor" href="#example-1" aria-hidden="true">#</a> Example</h4><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>CANCEL ARCHIVING <span class="token number">0</span> |
| CANCEL ARCHIVING <span class="token keyword">ON</span> root<span class="token punctuation">.</span>ln |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="pause-archiving-task" tabindex="-1"><a class="header-anchor" href="#pause-archiving-task" aria-hidden="true">#</a> Pause Archiving Task</h3><p>Suspend the data migration task.</p><h4 id="syntax-3" tabindex="-1"><a class="header-anchor" href="#syntax-3" aria-hidden="true">#</a> Syntax</h4><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>PAUSE ARCHIVING <span class="token operator"><</span>task_id<span class="token operator">></span> |
| PAUSE ARCHIVING <span class="token keyword">ON</span> <span class="token operator"><</span>storage_group<span class="token operator">></span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div></div></div><ul><li><code><task_id></code> specifies the id of archiving task to pause.</li><li><code><storage_group></code> specifies the storage group to pause archiving task, if many exist cancel the one with the lowest start time.</li></ul><h4 id="example-2" tabindex="-1"><a class="header-anchor" href="#example-2" aria-hidden="true">#</a> Example</h4><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>PAUSE ARCHIVING <span class="token number">0</span> |
| PAUSE ARCHIVING <span class="token keyword">ON</span> root<span class="token punctuation">.</span>ln |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="resume-archiving-task" tabindex="-1"><a class="header-anchor" href="#resume-archiving-task" aria-hidden="true">#</a> Resume Archiving Task</h3><p>Resume suspended data archiving tasks.</p><h4 id="syntax-4" tabindex="-1"><a class="header-anchor" href="#syntax-4" aria-hidden="true">#</a> Syntax</h4><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>RESUME ARCHIVING <span class="token operator"><</span>task_id<span class="token operator">></span> |
| RESUME ARCHIVING <span class="token keyword">ON</span> <span class="token operator"><</span>storage_group<span class="token operator">></span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div></div></div><ul><li><code><task_id></code> specifies the id of archiving task to resume.</li><li><code><storage_group></code> specifies the storage group to resume archiving task, if many exist cancel the one with the lowest start time.</li></ul><h4 id="example-3" tabindex="-1"><a class="header-anchor" href="#example-3" aria-hidden="true">#</a> Example</h4><div class="language-sql line-numbers-mode" data-ext="sql"><pre class="language-sql"><code>RESUME ARCHIVING <span class="token number">0</span> |
| RESUME ARCHIVING <span class="token keyword">ON</span> root<span class="token punctuation">.</span>ln |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div></div></div><h2 id="system-parameter-configuration" tabindex="-1"><a class="header-anchor" href="#system-parameter-configuration" aria-hidden="true">#</a> System Parameter Configuration</h2><table><thead><tr><th style="text-align:left;">Name</th><th>Description</th><th>Data Type</th><th>Default Value</th></tr></thead><tbody><tr><td style="text-align:left;"><code>archiving_thread_num</code></td><td>The number of threads in the thread pool that executes archiving tasks.</td><td>int</td><td>2</td></tr></tbody></table>`,42);function i(p,l){return s(),e("div",null,[n(` |
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| `),r])}const d=a(o,[["render",i],["__file","Archiving.html.vue"]]);export{d as default}; |
