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Lu, Huayi e6fa411af0 DWS DEV 830.201 version 
Reviewed-by: Pruthi, Vineet <vineet.pruthi@t-systems.com>
Co-authored-by: Lu, Huayi <luhuayi@huawei.com>
Co-committed-by: Lu, Huayi <luhuayi@huawei.com>
2024-05-16 07:24:04 +00:00

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<a name="EN-US_TOPIC_0000001233761763"></a><a name="EN-US_TOPIC_0000001233761763"></a>
<h1 class="topictitle1">PGXC_THREAD_WAIT_STATUS</h1>
<div id="body8662426"><p id="EN-US_TOPIC_0000001233761763__aeeb60a58c16848f79a2dcfe785b56827"><strong id="EN-US_TOPIC_0000001233761763__b8423527069632">PGXC_THREAD_WAIT_STATUS</strong> displays all the call layer hierarchy relationship between threads of the SQL statements on all the nodes in a cluster, and the waiting status of the block for each thread, so that you can easily locate the causes of process response failures and similar phenomena.</p>
<p id="EN-US_TOPIC_0000001233761763__aed616384a093490ea1508d2736124e47">The definitions of <strong id="EN-US_TOPIC_0000001233761763__b84235270692624">PGXC_THREAD_WAIT_STATUS</strong> view and <strong id="EN-US_TOPIC_0000001233761763__b84235270692638">PG_THREAD_WAIT_STATUS</strong> view are the same, because the essence of the <strong id="EN-US_TOPIC_0000001233761763__b84235270692758">PGXC_THREAD_WAIT_STATUS</strong> view is the query summary result of the <strong id="EN-US_TOPIC_0000001233761763__b142954172593322">PG_THREAD_WAIT_STATUS</strong> view on each node in the cluster.</p>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="EN-US_TOPIC_0000001233761763__t51c3e639c4f94d2a8c03a5449b231202" frame="border" border="1" rules="all"><caption><b>Table 1 </b>PGXC_THREAD_WAIT_STATUS columns</caption><thead align="left"><tr id="EN-US_TOPIC_0000001233761763__rb3388a22a8d84617b1934d703a96bb48"><th align="left" class="cellrowborder" valign="top" width="23.93%" id="mcps1.3.3.2.4.1.1"><p id="EN-US_TOPIC_0000001233761763__a00cf06e198b04ec0a2ab5752f35df732"><strong id="EN-US_TOPIC_0000001233761763__b84235270691445">Name</strong></p>
</th>
<th align="left" class="cellrowborder" valign="top" width="16.42%" id="mcps1.3.3.2.4.1.2"><p id="EN-US_TOPIC_0000001233761763__ae26a8fa548b046d9bf9f38395afcf5cb">Type</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="59.650000000000006%" id="mcps1.3.3.2.4.1.3"><p id="EN-US_TOPIC_0000001233761763__a939188f449be4ca0902bc5c02e1f3c18">Description</p>
</th>
</tr>
</thead>
<tbody><tr id="EN-US_TOPIC_0000001233761763__r14ced6936c574f74899070024c8f01f7"><td class="cellrowborder" valign="top" width="23.93%" headers="mcps1.3.3.2.4.1.1 "><p id="EN-US_TOPIC_0000001233761763__aaad518829c26414aa8a4193212b9da54">node_name</p>
</td>
<td class="cellrowborder" valign="top" width="16.42%" headers="mcps1.3.3.2.4.1.2 "><p id="EN-US_TOPIC_0000001233761763__abb3899822a1c4c3da3d1dafa98360d5c">text</p>
</td>
<td class="cellrowborder" valign="top" width="59.650000000000006%" headers="mcps1.3.3.2.4.1.3 "><p id="EN-US_TOPIC_0000001233761763__abb692c74816e489291ad1eeea5ea0e8c">Current node name</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001233761763__r3dba04beb4b34453811b2a2224a1c9fc"><td class="cellrowborder" valign="top" width="23.93%" headers="mcps1.3.3.2.4.1.1 "><p id="EN-US_TOPIC_0000001233761763__a88ec64e859af4e20ab67cba390dd3a9b">db_name</p>
</td>
<td class="cellrowborder" valign="top" width="16.42%" headers="mcps1.3.3.2.4.1.2 "><p id="EN-US_TOPIC_0000001233761763__a097cffba860044a9b4d28a8dffc51899">text</p>
</td>
<td class="cellrowborder" valign="top" width="59.650000000000006%" headers="mcps1.3.3.2.4.1.3 "><p id="EN-US_TOPIC_0000001233761763__ac97430df1ae641119789927a14ae2deb">Database name</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001233761763__rcac90176d28745eab6550e879c86db29"><td class="cellrowborder" valign="top" width="23.93%" headers="mcps1.3.3.2.4.1.1 "><p id="EN-US_TOPIC_0000001233761763__a9bbd6855424841db9a405017767fa853">thread_name</p>
</td>
<td class="cellrowborder" valign="top" width="16.42%" headers="mcps1.3.3.2.4.1.2 "><p id="EN-US_TOPIC_0000001233761763__a670bbf253e124bbab63955e5a1250728">text</p>
</td>
<td class="cellrowborder" valign="top" width="59.650000000000006%" headers="mcps1.3.3.2.4.1.3 "><p id="EN-US_TOPIC_0000001233761763__a96c7404b5b12417f8bdcacd3fff4fb82">Thread name</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001233761763__r90d6b8de3d17468889e9e5ce914cb233"><td class="cellrowborder" valign="top" width="23.93%" headers="mcps1.3.3.2.4.1.1 "><p id="EN-US_TOPIC_0000001233761763__aa1aeb29c0d8f4618b12c67195b868f3b">query_id</p>
</td>
<td class="cellrowborder" valign="top" width="16.42%" headers="mcps1.3.3.2.4.1.2 "><p id="EN-US_TOPIC_0000001233761763__a8297ed484fa244a1961328ff837c09c4">bigint</p>
</td>
<td class="cellrowborder" valign="top" width="59.650000000000006%" headers="mcps1.3.3.2.4.1.3 "><p id="EN-US_TOPIC_0000001233761763__a6ac96ddd0cc34b6fa2464178a1970a35">Query ID. It is equivalent to <strong id="EN-US_TOPIC_0000001233761763__b842352706144235">debug_query_id</strong>.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001233761763__r4098305ef1af423da34f1d9e06a95bfb"><td class="cellrowborder" valign="top" width="23.93%" headers="mcps1.3.3.2.4.1.1 "><p id="EN-US_TOPIC_0000001233761763__a31bcd1da4eae42d393a279f91bf5dfe5">tid</p>
</td>
<td class="cellrowborder" valign="top" width="16.42%" headers="mcps1.3.3.2.4.1.2 "><p id="EN-US_TOPIC_0000001233761763__a024ab03c1aaf4e1780dcbf6105fa94c4">bigint</p>
</td>
<td class="cellrowborder" valign="top" width="59.650000000000006%" headers="mcps1.3.3.2.4.1.3 "><p id="EN-US_TOPIC_0000001233761763__a05ccd4c61a374f31b09baebda57e204a">Thread ID of the current thread</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001233761763__r21986a58c46d4352b95cbefa787f5526"><td class="cellrowborder" valign="top" width="23.93%" headers="mcps1.3.3.2.4.1.1 "><p id="EN-US_TOPIC_0000001233761763__a675b4dec184249f0a98e7bf8c42686eb">lwtid</p>
</td>
<td class="cellrowborder" valign="top" width="16.42%" headers="mcps1.3.3.2.4.1.2 "><p id="EN-US_TOPIC_0000001233761763__a22d72abcb75d4ffcbb2fc99a0bd6e810">integer</p>
</td>
<td class="cellrowborder" valign="top" width="59.650000000000006%" headers="mcps1.3.3.2.4.1.3 "><p id="EN-US_TOPIC_0000001233761763__a82f81f525e2b4b38933aa29f5e80e7fa">Lightweight thread ID of the current thread</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001233761763__r077305f6ef4d4132b969aeaf97607a7c"><td class="cellrowborder" valign="top" width="23.93%" headers="mcps1.3.3.2.4.1.1 "><p id="EN-US_TOPIC_0000001233761763__a56094de26d514b739677900f24512187">ptid</p>
</td>
<td class="cellrowborder" valign="top" width="16.42%" headers="mcps1.3.3.2.4.1.2 "><p id="EN-US_TOPIC_0000001233761763__a6f1a93636aa5415198840be099a462b3">integer</p>
</td>
<td class="cellrowborder" valign="top" width="59.650000000000006%" headers="mcps1.3.3.2.4.1.3 "><p id="EN-US_TOPIC_0000001233761763__a3ca733831713461ea7e651025645643b">Parent thread of the streaming thread</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001233761763__r870b6249bf5340279e52cfb0f73f4b27"><td class="cellrowborder" valign="top" width="23.93%" headers="mcps1.3.3.2.4.1.1 "><p id="EN-US_TOPIC_0000001233761763__a3f2b5ae5341a4c37978ef7a90c1ed70d">tlevel</p>
</td>
<td class="cellrowborder" valign="top" width="16.42%" headers="mcps1.3.3.2.4.1.2 "><p id="EN-US_TOPIC_0000001233761763__a9076e618462842828cf1ade09f514f63">integer</p>
</td>
<td class="cellrowborder" valign="top" width="59.650000000000006%" headers="mcps1.3.3.2.4.1.3 "><p id="EN-US_TOPIC_0000001233761763__aad7b74400c8e438c87540b245148658b">Level of the streaming thread</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001233761763__rb3c6f3bcc8ab431a93966cc43e38589c"><td class="cellrowborder" valign="top" width="23.93%" headers="mcps1.3.3.2.4.1.1 "><p id="EN-US_TOPIC_0000001233761763__ac55e70aae12141e0b3381e42f92064fd">smpid</p>
</td>
<td class="cellrowborder" valign="top" width="16.42%" headers="mcps1.3.3.2.4.1.2 "><p id="EN-US_TOPIC_0000001233761763__a74890631840642cd8624fcbbc62166e2">integer</p>
</td>
<td class="cellrowborder" valign="top" width="59.650000000000006%" headers="mcps1.3.3.2.4.1.3 "><p id="EN-US_TOPIC_0000001233761763__a5ace3a0fca0d4d638c877925d3ad04f4">Concurrent thread ID</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001233761763__r87da05d3c89d429898145809d9601d69"><td class="cellrowborder" valign="top" width="23.93%" headers="mcps1.3.3.2.4.1.1 "><p id="EN-US_TOPIC_0000001233761763__a59c2284d62e847a8a3959de438277acb">wait_status</p>
</td>
<td class="cellrowborder" valign="top" width="16.42%" headers="mcps1.3.3.2.4.1.2 "><p id="EN-US_TOPIC_0000001233761763__a3e55f6f1c07848e29aeb96a0d0bee70e">text</p>
</td>
<td class="cellrowborder" valign="top" width="59.650000000000006%" headers="mcps1.3.3.2.4.1.3 "><p id="EN-US_TOPIC_0000001233761763__a054d51f5b90d4107965ba7cf8fc8d9f8">Waiting status of the current thread. For details about the waiting status, see <a href="dws_04_0783.html#EN-US_TOPIC_0000001233761803__t2e88141821ac42158405ff5eea1d7285">Table 2</a>.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001233761763__row51493315326"><td class="cellrowborder" valign="top" width="23.93%" headers="mcps1.3.3.2.4.1.1 "><p id="EN-US_TOPIC_0000001233761763__p315012317322">wait_event</p>
</td>
<td class="cellrowborder" valign="top" width="16.42%" headers="mcps1.3.3.2.4.1.2 "><p id="EN-US_TOPIC_0000001233761763__p7150203183219">text</p>
</td>
<td class="cellrowborder" valign="top" width="59.650000000000006%" headers="mcps1.3.3.2.4.1.3 "><p id="EN-US_TOPIC_0000001233761763__p8150131183217">If <strong id="EN-US_TOPIC_0000001233761763__b1969151443712">wait_status</strong> is <strong id="EN-US_TOPIC_0000001233761763__b996941453718">acquire lock</strong>, <strong id="EN-US_TOPIC_0000001233761763__b39691144371">acquire lwlock</strong>, or <strong id="EN-US_TOPIC_0000001233761763__b179695147374">wait io</strong>, this column describes the lock, lightweight lock, and I/O information, respectively. If <strong id="EN-US_TOPIC_0000001233761763__b10656151613375">wait_status</strong> is not any of the three values, this column is empty.</p>
</td>
</tr>
</tbody>
</table>
</div>
<p id="EN-US_TOPIC_0000001233761763__a861d5596b8a74bcabe85d73b138fed1b">Example:</p>
<p id="EN-US_TOPIC_0000001233761763__a5872235d21334bbeb2f3ec19cad74dfe">Assume you run a statement on coordinator1, and no response is returned after a long period of time. In this case, establish another connection to coordinator1 to check the thread status on it.</p>
<div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001233761763__s45d9b8adb0c544d2a815b233510271d9"><div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal">1</span>
<span class="normal">2</span>
<span class="normal">3</span>
<span class="normal">4</span>
<span class="normal">5</span></pre></div></td><td class="code"><div><pre><span></span><span class="w"> </span><span class="k">select</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="k">from</span><span class="w"> </span><span class="n">pg_thread_wait_status</span><span class="w"> </span><span class="k">where</span><span class="w"> </span><span class="n">query_id</span><span class="w"> </span><span class="o">&gt;</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span>
<span class="w"> </span><span class="n">node_name</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">db_name</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">thread_name</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">query_id</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">tid</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">lwtid</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">ptid</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">tlevel</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">smpid</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">wait_status</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">wait_event</span><span class="w"> </span>
<span class="c1">--------------+----------+--------------+----------+-----------------+-------+-------+--------+-------+----------------------</span>
<span class="w"> </span><span class="n">coordinator1</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">gaussdb</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">gsql</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">20971544</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">140274089064208</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">22579</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">wait</span><span class="w"> </span><span class="n">node</span><span class="p">:</span><span class="w"> </span><span class="n">datanode4</span><span class="w"> </span><span class="o">|</span>
<span class="p">(</span><span class="mi">1</span><span class="w"> </span><span class="k">rows</span><span class="p">)</span>
</pre></div></td></tr></table></div>
</div>
<p id="EN-US_TOPIC_0000001233761763__a166d13b3c4dc4eac85adb62428f6d733">Furthermore, you can view the statement working status on each node in the entire cluster. In the following example, no DNs have threads blocked, and there is a huge amount of data to be read, causing slow execution.</p>
<div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001233761763__s9780eeb12b3c4bba89e9128f763ab31b"><div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal"> 1</span>
<span class="normal"> 2</span>
<span class="normal"> 3</span>
<span class="normal"> 4</span>
<span class="normal"> 5</span>
<span class="normal"> 6</span>
<span class="normal"> 7</span>
<span class="normal"> 8</span>
<span class="normal"> 9</span>
<span class="normal">10</span>
<span class="normal">11</span>
<span class="normal">12</span>
<span class="normal">13</span>
<span class="normal">14</span>
<span class="normal">15</span>
<span class="normal">16</span>
<span class="normal">17</span></pre></div></td><td class="code"><div><pre><span></span><span class="k">select</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="k">from</span><span class="w"> </span><span class="n">pgxc_thread_wait_status</span><span class="w"> </span><span class="k">where</span><span class="w"> </span><span class="n">query_id</span><span class="o">=</span><span class="mi">20971544</span><span class="p">;</span>
<span class="w"> </span><span class="n">node_name</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">db_name</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">thread_name</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">query_id</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">tid</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">lwtid</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">ptid</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">tlevel</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">smpid</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">wait_status</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">wait_event</span><span class="w"> </span>
<span class="c1">--------------+----------+--------------+----------+-----------------+-------+-------+--------+-------+----------------------</span>
<span class="w"> </span><span class="n">datanode1</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">gaussdb</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">coordinator1</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">20971544</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">139902867994384</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">22735</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">wait</span><span class="w"> </span><span class="n">node</span><span class="p">:</span><span class="w"> </span><span class="n">datanode3</span><span class="w"> </span><span class="o">|</span>
<span class="w"> </span><span class="n">datanode1</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">gaussdb</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">coordinator1</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">20971544</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">139902838634256</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">22970</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">22735</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">5</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">synchronize</span><span class="w"> </span><span class="n">quit</span><span class="w"> </span><span class="o">|</span>
<span class="w"> </span><span class="n">datanode1</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">gaussdb</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">coordinator1</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">20971544</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">139902607947536</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">22972</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">22735</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">5</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">1</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">synchronize</span><span class="w"> </span><span class="n">quit</span><span class="w"> </span><span class="o">|</span>
<span class="w"> </span><span class="n">datanode2</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">gaussdb</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">coordinator1</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">20971544</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">140632156796688</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">22736</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">wait</span><span class="w"> </span><span class="n">node</span><span class="p">:</span><span class="w"> </span><span class="n">datanode3</span><span class="w"> </span><span class="o">|</span>
<span class="w"> </span><span class="n">datanode2</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">gaussdb</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">coordinator1</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">20971544</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">140632030967568</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">22974</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">22736</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">5</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">synchronize</span><span class="w"> </span><span class="n">quit</span><span class="w"> </span><span class="o">|</span>
<span class="w"> </span><span class="n">datanode2</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">gaussdb</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">coordinator1</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">20971544</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">140632081299216</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">22975</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">22736</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">5</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">1</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">synchronize</span><span class="w"> </span><span class="n">quit</span><span class="w"> </span><span class="o">|</span>
<span class="w"> </span><span class="n">datanode3</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">gaussdb</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">coordinator1</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">20971544</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">140323627988752</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">22737</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">wait</span><span class="w"> </span><span class="n">node</span><span class="p">:</span><span class="w"> </span><span class="n">datanode3</span><span class="w"> </span><span class="o">|</span>
<span class="w"> </span><span class="n">datanode3</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">gaussdb</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">coordinator1</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">20971544</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">140323523131152</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">22976</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">22737</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">5</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">net</span><span class="w"> </span><span class="n">flush</span><span class="w"> </span><span class="k">data</span><span class="w"> </span><span class="o">|</span>
<span class="w"> </span><span class="n">datanode3</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">gaussdb</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">coordinator1</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">20971544</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">140323548296976</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">22978</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">22737</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">5</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">1</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">net</span><span class="w"> </span><span class="n">flush</span><span class="w"> </span><span class="k">data</span>
<span class="w"> </span><span class="n">datanode4</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">gaussdb</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">coordinator1</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">20971544</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">140103024375568</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">22738</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">wait</span><span class="w"> </span><span class="n">node</span><span class="p">:</span><span class="w"> </span><span class="n">datanode3</span>
<span class="w"> </span><span class="n">datanode4</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">gaussdb</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">coordinator1</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">20971544</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">140102919517968</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">22979</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">22738</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">5</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">synchronize</span><span class="w"> </span><span class="n">quit</span><span class="w"> </span><span class="o">|</span>
<span class="w"> </span><span class="n">datanode4</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">gaussdb</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">coordinator1</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">20971544</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">140102969849616</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">22980</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">22738</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">5</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">1</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">synchronize</span><span class="w"> </span><span class="n">quit</span><span class="w"> </span><span class="o">|</span>
<span class="w"> </span><span class="n">coordinator1</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">gaussdb</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">gsql</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">20971544</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">140274089064208</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">22579</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">wait</span><span class="w"> </span><span class="n">node</span><span class="p">:</span><span class="w"> </span><span class="n">datanode4</span><span class="w"> </span><span class="o">|</span>
<span class="p">(</span><span class="mi">13</span><span class="w"> </span><span class="k">rows</span><span class="p">)</span>
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