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Lu, Huayi
e6fa411af0
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>
101 lines
7.9 KiB
HTML
101 lines
7.9 KiB
HTML
<a name="EN-US_TOPIC_0000001188323622"></a><a name="EN-US_TOPIC_0000001188323622"></a>
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<h1 class="topictitle1">PGXC_VARIABLE_INFO</h1>
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<div id="body1562579026932"><p id="EN-US_TOPIC_0000001188323622__p02888151491"><strong id="EN-US_TOPIC_0000001188323622__b19298181319020">PGXC_VARIABLE_INFO</strong> displays information about transaction IDs and OIDs of all nodes in a cluster.</p>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="EN-US_TOPIC_0000001188323622__table118381565499" frame="border" border="1" rules="all"><caption><b>Table 1 </b>PGXC_VARIABLE_INFO columns</caption><thead align="left"><tr id="EN-US_TOPIC_0000001188323622__row0838195616495"><th align="left" class="cellrowborder" valign="top" width="22.6022602260226%" id="mcps1.3.2.2.4.1.1"><p id="EN-US_TOPIC_0000001188323622__afbe7fe3528aa4d23a961fb047a3be366">Name</p>
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</th>
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<th align="left" class="cellrowborder" valign="top" width="19.001900190019004%" id="mcps1.3.2.2.4.1.2"><p id="EN-US_TOPIC_0000001188323622__a32766e1c79fc45b5a8bc604d73582551">Type</p>
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</th>
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<th align="left" class="cellrowborder" valign="top" width="58.3958395839584%" id="mcps1.3.2.2.4.1.3"><p id="EN-US_TOPIC_0000001188323622__a37865a77d1a4411998bbb8d0892f7e33">Description</p>
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</th>
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</tr>
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</thead>
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<tbody><tr id="EN-US_TOPIC_0000001188323622__row583935615493"><td class="cellrowborder" valign="top" width="22.6022602260226%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001188323622__p8824359510">node_name</p>
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</td>
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<td class="cellrowborder" valign="top" width="19.001900190019004%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001188323622__p2485111625110">text</p>
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</td>
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<td class="cellrowborder" valign="top" width="58.3958395839584%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001188323622__p34661427155115">Node name</p>
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</td>
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</tr>
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<tr id="EN-US_TOPIC_0000001188323622__row18393569491"><td class="cellrowborder" valign="top" width="22.6022602260226%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001188323622__p1682414510511">nextOid</p>
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</td>
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<td class="cellrowborder" valign="top" width="19.001900190019004%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001188323622__p104851816205112">oid</p>
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</td>
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<td class="cellrowborder" valign="top" width="58.3958395839584%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001188323622__p17466202755119">OID generated next time for a node</p>
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</td>
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</tr>
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<tr id="EN-US_TOPIC_0000001188323622__row12839195614918"><td class="cellrowborder" valign="top" width="22.6022602260226%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001188323622__p9824185125117">nextXid</p>
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</td>
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<td class="cellrowborder" valign="top" width="19.001900190019004%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001188323622__p144857167517">xid</p>
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</td>
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<td class="cellrowborder" valign="top" width="58.3958395839584%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001188323622__p2467182735119">Transaction ID generated next time for a node</p>
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</td>
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</tr>
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<tr id="EN-US_TOPIC_0000001188323622__row284075674919"><td class="cellrowborder" valign="top" width="22.6022602260226%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001188323622__p68246595117">oldestXid</p>
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</td>
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<td class="cellrowborder" valign="top" width="19.001900190019004%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001188323622__p1348510165516">xid</p>
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</td>
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<td class="cellrowborder" valign="top" width="58.3958395839584%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001188323622__p4467122775110">Oldest transaction ID for a node</p>
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</td>
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</tr>
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<tr id="EN-US_TOPIC_0000001188323622__row584085614499"><td class="cellrowborder" valign="top" width="22.6022602260226%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001188323622__p282545185111">xidVacLimit</p>
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</td>
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<td class="cellrowborder" valign="top" width="19.001900190019004%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001188323622__p748611616515">xid</p>
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</td>
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<td class="cellrowborder" valign="top" width="58.3958395839584%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001188323622__p2467172715112">Critical point that triggers forcible autovacuum</p>
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</td>
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</tr>
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<tr id="EN-US_TOPIC_0000001188323622__row1884019567499"><td class="cellrowborder" valign="top" width="22.6022602260226%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001188323622__p18257518515">oldestXidDB</p>
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</td>
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<td class="cellrowborder" valign="top" width="19.001900190019004%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001188323622__p1248610168513">oid</p>
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</td>
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<td class="cellrowborder" valign="top" width="58.3958395839584%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001188323622__p34671127145111">OID of the database that has the minimum <strong id="EN-US_TOPIC_0000001188323622__b101354531474">datafrozenxid</strong> on a node</p>
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</td>
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</tr>
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<tr id="EN-US_TOPIC_0000001188323622__row684035611496"><td class="cellrowborder" valign="top" width="22.6022602260226%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001188323622__p1882510585118">lastExtendCSNLogpage</p>
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</td>
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<td class="cellrowborder" valign="top" width="19.001900190019004%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001188323622__p12486816175112">integer</p>
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</td>
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<td class="cellrowborder" valign="top" width="58.3958395839584%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001188323622__p546762715511">Number of the last extended csnlog page</p>
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</td>
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</tr>
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<tr id="EN-US_TOPIC_0000001188323622__row19328613145014"><td class="cellrowborder" valign="top" width="22.6022602260226%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001188323622__p48251559514">startExtendCSNLogpage</p>
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</td>
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<td class="cellrowborder" valign="top" width="19.001900190019004%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001188323622__p0486101615515">integer</p>
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</td>
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<td class="cellrowborder" valign="top" width="58.3958395839584%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001188323622__p15911578419">Number of the page from which the csnlog extending starts</p>
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</td>
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</tr>
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<tr id="EN-US_TOPIC_0000001188323622__row14628918135012"><td class="cellrowborder" valign="top" width="22.6022602260226%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001188323622__p10825205105112">nextCommitSeqNo</p>
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</td>
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<td class="cellrowborder" valign="top" width="19.001900190019004%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001188323622__p7486191665110">integer</p>
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</td>
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<td class="cellrowborder" valign="top" width="58.3958395839584%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001188323622__p94674271514">CSN generated next time for a node</p>
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</td>
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</tr>
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<tr id="EN-US_TOPIC_0000001188323622__row4862724115015"><td class="cellrowborder" valign="top" width="22.6022602260226%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001188323622__p7825355518">latestCompletedXid</p>
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</td>
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<td class="cellrowborder" valign="top" width="19.001900190019004%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001188323622__p048721619513">xid</p>
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</td>
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<td class="cellrowborder" valign="top" width="58.3958395839584%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001188323622__p1046732711518">Latest transaction ID on a node after the transaction commission or rollback</p>
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</td>
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</tr>
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<tr id="EN-US_TOPIC_0000001188323622__row143712033175017"><td class="cellrowborder" valign="top" width="22.6022602260226%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001188323622__p15825255519">startupMaxXid</p>
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</td>
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<td class="cellrowborder" valign="top" width="19.001900190019004%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001188323622__p18487151645110">xid</p>
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</td>
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<td class="cellrowborder" valign="top" width="58.3958395839584%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001188323622__p17467122719517">Last transaction ID before a node is powered off</p>
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</td>
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</tr>
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</tbody>
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</table>
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</div>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="dws_04_0639.html">System Views</a></div>
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</div>
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</div>
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