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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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            <title>[SERVER-36496] Cache pressure issues during oplog replay in initial sync</title>
                <link>https://jira.mongodb.org/browse/SERVER-36496</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;During oplog replay in initial sync we don&apos;t advance the oldest timestamp. This can pin a lot of data in the cache. Resulting symptoms include&lt;/p&gt;

&lt;ul&gt;
	&lt;li&gt;slow initial sync due to resulting cache churn&lt;/li&gt;
	&lt;li&gt;growth of lookaside (cache overflow) table and corresponding file WiredTigerLAS.wt&lt;/li&gt;
	&lt;li&gt;in extreme cases cache-full hangs were observed. This was believed fixed with &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-33191&quot; title=&quot;Cache-full hangs on 3.6&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-33191&quot;&gt;&lt;del&gt;SERVER-33191&lt;/del&gt;&lt;/a&gt;, but we should be alert for new occurrences of this issue.&lt;/li&gt;
&lt;/ul&gt;
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                <environment></environment>
        <key id="585017">SERVER-36496</key>
            <summary>Cache pressure issues during oplog replay in initial sync</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</type>
                                            <priority id="3" iconUrl="https://jira.mongodb.org/images/icons/priorities/major.svg">Major - P3</priority>
                        <status id="6" iconUrl="https://jira.mongodb.org/images/icons/statuses/closed.png" description="The issue is considered finished, the resolution is correct. Issues which are closed can be reopened.">Closed</status>
                    <statusCategory id="3" key="done" colorName="success"/>
                                    <resolution id="2">Won&apos;t Fix</resolution>
                                        <assignee username="backlog-server-repl">Backlog - Replication Team</assignee>
                                    <reporter username="bruce.lucas@mongodb.com">Bruce Lucas</reporter>
                        <labels>
                    </labels>
                <created>Tue, 7 Aug 2018 16:50:54 +0000</created>
                <updated>Mon, 2 Oct 2023 18:26:29 +0000</updated>
                            <resolved>Mon, 2 Oct 2023 18:26:29 +0000</resolved>
                                                                                        <votes>0</votes>
                                    <watches>21</watches>
                                                                                                                <comments>
                            <comment id="5746304" author="lingzhi.deng" created="Mon, 2 Oct 2023 18:26:29 +0000"  >&lt;p&gt;We think this problem goes away with WT history store.&lt;/p&gt;</comment>
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            <issuekey id="494491">SERVER-33191</issuekey>
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            <issuelink>
            <issuekey id="541126">SERVER-34900</issuekey>
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            <issuelink>
            <issuekey id="542268">SERVER-34938</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="542315">SERVER-34942</issuekey>
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            <issuelink>
            <issuekey id="574993">SERVER-36238</issuekey>
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