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    <span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></a></nav>  <ul class="sidebar-links"><li><section class="sidebar-group depth-0"><p class="sidebar-heading"><span>IoTDB User Guide (V0.12.x)</span> <!----></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>IoTDB Introduction</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Quick Start</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Data Concept</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>CLI</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Administration Management</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>IoTDB-SQL Language</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>API</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>UDF</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading open"><span>Communication Service Protocol</span> <span class="arrow down"></span></p> <ul class="sidebar-links sidebar-group-items"><li><a href="/UserGuide/V0.12.x/Communication-Service-Protocol/Programming-Thrift.html" aria-current="page" class="active sidebar-link">Thrift</a></li><li><a href="/UserGuide/V0.12.x/Communication-Service-Protocol/Programming-MQTT.html" class="sidebar-link">MQTT</a></li></ul></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>System Tools</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Collaboration of Edge and Cloud</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Ecosystem Integration</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Cluster Setup</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>FAQ</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Appendix</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Comparison with TSDBs</span> <span class="arrow right"></span></p> <!----></section></li></ul> </aside> <main class="page"> <div class="content content__default"><h1 id="communication-service-protocol"><a href="#communication-service-protocol" class="header-anchor">#</a> Communication Service protocol</h1> <h2 id="thrift-rpc-interface"><a href="#thrift-rpc-interface" class="header-anchor">#</a> Thrift rpc interface</h2> <h3 id="introduction"><a href="#introduction" class="header-anchor">#</a> introduction</h3> <p>Thrift is a remote procedure call software framework for the development of extensible and cross-language services.
It combines a powerful software stack and code generation engine,
In order to build seamlessly integrated and efficient services among programming languages ​​such as C++, Java, Go, Python, PHP, Ruby, Erlang, Perl, Haskell, C#, Cocoa, JavaScript, Node.js, Smalltalk, and OCaml.</p> <p>IoTDB server and client use thrift for communication. In actual use, it is recommended to use the native client package provided by IoTDB:
Session or Session Pool. If you have special needs, you can also program directly against the RPC interface</p> <p>The default IoTDB server uses port 6667 as the RPC communication port, you can modify the configuration item</p> <div class="language- line-numbers-mode"><pre class="language-text"><code>rpc_port=6667
</code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br></div></div><p>to change the default thrift port</p> <h3 id="rpc-interface"><a href="#rpc-interface" class="header-anchor">#</a> rpc interface</h3> <div class="language- line-numbers-mode"><pre class="language-text"><code>// open a session
TSOpenSessionResp openSession(1:TSOpenSessionReq req);

// close a session
TSStatus closeSession(1:TSCloseSessionReq req);

// run an SQL statement in batch
TSExecuteStatementResp executeStatement(1:TSExecuteStatementReq req);

// execute SQL statement in batch
TSStatus executeBatchStatement(1:TSExecuteBatchStatementReq req);

// execute query SQL statement
TSExecuteStatementResp executeQueryStatement(1:TSExecuteStatementReq req);

// execute insert, delete and update SQL statement 
TSExecuteStatementResp executeUpdateStatement(1:TSExecuteStatementReq req);

// fetch next query result
TSFetchResultsResp fetchResults(1:TSFetchResultsReq req)

// fetch meta data
TSFetchMetadataResp fetchMetadata(1:TSFetchMetadataReq req)

// cancel a query 
TSStatus cancelOperation(1:TSCancelOperationReq req);

// close a query dataset
TSStatus closeOperation(1:TSCloseOperationReq req);

// get time zone
TSGetTimeZoneResp getTimeZone(1:i64 sessionId);

// set time zone
TSStatus setTimeZone(1:TSSetTimeZoneReq req);

// get server's properties
ServerProperties getProperties();

// set storage group
TSStatus setStorageGroup(1:i64 sessionId, 2:string storageGroup);

// create timeseries
TSStatus createTimeseries(1:TSCreateTimeseriesReq req);

// create multi timeseries
TSStatus createMultiTimeseries(1:TSCreateMultiTimeseriesReq req);

// delete timeseries
TSStatus deleteTimeseries(1:i64 sessionId, 2:list&lt;string&gt; path)

// delete sttorage groups
TSStatus deleteStorageGroups(1:i64 sessionId, 2:list&lt;string&gt; storageGroup);

// insert record
TSStatus insertRecord(1:TSInsertRecordReq req);

// insert record in string format
TSStatus insertStringRecord(1:TSInsertStringRecordReq req);

// insert tablet
TSStatus insertTablet(1:TSInsertTabletReq req);

// insert tablets in batch
TSStatus insertTablets(1:TSInsertTabletsReq req);

// insert records in batch
TSStatus insertRecords(1:TSInsertRecordsReq req);

// insert records of one device
TSStatus insertRecordsOfOneDevice(1:TSInsertRecordsOfOneDeviceReq req);

// insert records in batch as string format
TSStatus insertStringRecords(1:TSInsertStringRecordsReq req);

// test the latency of innsert tablet，caution：no data will be inserted, only for test latency
TSStatus testInsertTablet(1:TSInsertTabletReq req);

// test the latency of innsert tablets，caution：no data will be inserted, only for test latency
TSStatus testInsertTablets(1:TSInsertTabletsReq req);

// test the latency of innsert record，caution：no data will be inserted, only for test latency
TSStatus testInsertRecord(1:TSInsertRecordReq req);

// test the latency of innsert record in string format，caution：no data will be inserted, only for test latency
TSStatus testInsertStringRecord(1:TSInsertStringRecordReq req);

// test the latency of innsert records，caution：no data will be inserted, only for test latency
TSStatus testInsertRecords(1:TSInsertRecordsReq req);

// test the latency of innsert records of one device，caution：no data will be inserted, only for test latency
TSStatus testInsertRecordsOfOneDevice(1:TSInsertRecordsOfOneDeviceReq req);

// test the latency of innsert records in string formate，caution：no data will be inserted, only for test latency
TSStatus testInsertStringRecords(1:TSInsertStringRecordsReq req);

// delete data
TSStatus deleteData(1:TSDeleteDataReq req);

// execute raw data query
TSExecuteStatementResp executeRawDataQuery(1:TSRawDataQueryReq req);

// request a statement id from server
i64 requestStatementId(1:i64 sessionId);
</code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br><span class="line-number">9</span><br><span class="line-number">10</span><br><span class="line-number">11</span><br><span class="line-number">12</span><br><span class="line-number">13</span><br><span class="line-number">14</span><br><span class="line-number">15</span><br><span class="line-number">16</span><br><span class="line-number">17</span><br><span class="line-number">18</span><br><span class="line-number">19</span><br><span class="line-number">20</span><br><span class="line-number">21</span><br><span class="line-number">22</span><br><span class="line-number">23</span><br><span class="line-number">24</span><br><span class="line-number">25</span><br><span class="line-number">26</span><br><span class="line-number">27</span><br><span class="line-number">28</span><br><span class="line-number">29</span><br><span class="line-number">30</span><br><span class="line-number">31</span><br><span class="line-number">32</span><br><span class="line-number">33</span><br><span class="line-number">34</span><br><span class="line-number">35</span><br><span class="line-number">36</span><br><span class="line-number">37</span><br><span class="line-number">38</span><br><span class="line-number">39</span><br><span class="line-number">40</span><br><span class="line-number">41</span><br><span class="line-number">42</span><br><span class="line-number">43</span><br><span class="line-number">44</span><br><span class="line-number">45</span><br><span class="line-number">46</span><br><span class="line-number">47</span><br><span class="line-number">48</span><br><span class="line-number">49</span><br><span class="line-number">50</span><br><span class="line-number">51</span><br><span class="line-number">52</span><br><span class="line-number">53</span><br><span class="line-number">54</span><br><span class="line-number">55</span><br><span class="line-number">56</span><br><span class="line-number">57</span><br><span class="line-number">58</span><br><span class="line-number">59</span><br><span class="line-number">60</span><br><span class="line-number">61</span><br><span class="line-number">62</span><br><span class="line-number">63</span><br><span class="line-number">64</span><br><span class="line-number">65</span><br><span class="line-number">66</span><br><span class="line-number">67</span><br><span class="line-number">68</span><br><span class="line-number">69</span><br><span class="line-number">70</span><br><span class="line-number">71</span><br><span class="line-number">72</span><br><span class="line-number">73</span><br><span class="line-number">74</span><br><span class="line-number">75</span><br><span class="line-number">76</span><br><span class="line-number">77</span><br><span class="line-number">78</span><br><span class="line-number">79</span><br><span class="line-number">80</span><br><span class="line-number">81</span><br><span class="line-number">82</span><br><span class="line-number">83</span><br><span class="line-number">84</span><br><span class="line-number">85</span><br><span class="line-number">86</span><br><span class="line-number">87</span><br><span class="line-number">88</span><br><span class="line-number">89</span><br><span class="line-number">90</span><br><span class="line-number">91</span><br><span class="line-number">92</span><br><span class="line-number">93</span><br><span class="line-number">94</span><br><span class="line-number">95</span><br><span class="line-number">96</span><br><span class="line-number">97</span><br><span class="line-number">98</span><br><span class="line-number">99</span><br><span class="line-number">100</span><br><span class="line-number">101</span><br><span class="line-number">102</span><br><span class="line-number">103</span><br><span class="line-number">104</span><br></div></div><h3 id="idl-file-path"><a href="#idl-file-path" class="header-anchor">#</a> IDL file path</h3> <p>IDL file path is &quot;thrift/src/main/thrift/rpc.thrift&quot; which includes interface and struct</p> <h3 id="target-file-path"><a href="#target-file-path" class="header-anchor">#</a> target file path</h3> <p>We will use thrift compile IDL file in mvn Compilation, in which generate target .class file
target file path is &quot;thrift/target/classes/org/apache/iotdb/service/rpc/thrift&quot;</p></div> <div class="page-nav"><p class="inner"><span class="prev">
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