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	<title>惜分飞 &#187; sysaux 空间不足</title>
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		<title>sysaux表空间不足&#8212;WRH$_ACTIVE_SESSION_HISTORY</title>
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		<pubDate>Sat, 28 Nov 2020 13:37:07 +0000</pubDate>
		<dc:creator><![CDATA[惜分飞]]></dc:creator>
				<category><![CDATA[Oracle]]></category>
		<category><![CDATA[HEATMAP]]></category>
		<category><![CDATA[sysaux 空间不足]]></category>
		<category><![CDATA[WRH$_ACTIVE_SESSION_HISTORY]]></category>
		<category><![CDATA[WRI$_ADV_OBJECTS]]></category>
		<category><![CDATA[_swrf_test_action]]></category>

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<p>标题：<a href="https://www.xifenfei.com/2020/11/wrh_active_session_history.html" target="_blank">sysaux表空间不足&#8212;WRH$_ACTIVE_SESSION_HISTORY</a></p>
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<p>一个老生常谈的问题遇到oracle sysaux表空间不足,通过awrinfo 分析,初步判断很可能是ash相关表没有正常清理分区导致<br />
<a href="https://www.xifenfei.com/wp-content/uploads/2020/11/20201128205515.jpg"><img src="https://www.xifenfei.com/wp-content/uploads/2020/11/20201128205515.jpg" alt="20201128205515" width="1023" height="364" class="alignnone size-full wp-image-8931" /></a><br />
<hr />
进一步分析确认异常对象<br />
<a href="https://www.xifenfei.com/wp-content/uploads/2020/11/20201128205618.jpg"><img src="https://www.xifenfei.com/wp-content/uploads/2020/11/20201128205618.jpg" alt="20201128205618" width="1049" height="447" class="alignnone size-full wp-image-8932" /></a><br />
<hr />
<a href="https://www.xifenfei.com/wp-content/uploads/2020/11/20201128205704.png"><img src="https://www.xifenfei.com/wp-content/uploads/2020/11/20201128205704.png" alt="20201128205704" width="1045" height="491" class="alignnone size-full wp-image-8933" /></a><br />
<hr />
通过分析基本上可以确认是由于WRH$_ACTIVE_SESSION_HISTORY没有创建新分析,数据未被及时清理.根据官方WRH$_ACTIVE_SESSION_HISTORY Does Not Get Purged (Doc ID 387914.1)处理建议<br />
alter session set &#8220;_swrf_test_action&#8221; = 72;<br />
增加新分区,过一段时间之后,自动清理WRH$_ACTIVE_SESSION_HISTORY表历史数据.<br />
<a href="https://www.xifenfei.com/wp-content/uploads/2020/11/20201128210106.jpg"><img src="https://www.xifenfei.com/wp-content/uploads/2020/11/20201128210106.jpg" alt="20201128210106" width="971" height="740" class="alignnone size-full wp-image-8934" /></a><br />
<hr />
对于sysaux表空间不足的情况,还遇到过类似情况:<br />
<a href="https://www.xifenfei.com/2020/01/heatmap-segment-size-is-large.html" title="sysaux中HEATMAP 对象较大" rel="noopener" target="_blank">sysaux中HEATMAP 对象较大</a><br />
<a href="https://www.xifenfei.com/2018/04/12-2-wri_adv_objects.html" title="WRI$_ADV_OBJECTS表过大,导致SYSAUX表空间不足" rel="noopener" target="_blank">WRI$_ADV_OBJECTS表过大,导致SYSAUX表空间不足</a></p>
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