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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-17020] Evictions by eviction server threads are reported as evictions by application threads</title>
                <link>https://jira.mongodb.org/browse/SERVER-17020</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;&amp;#95;&amp;#95;evict_worker calls &amp;#95;&amp;#95;evict_lru_pages with is_app==1, so evictions by eviction server threads are reported under the &quot;pages evicted by application threads&quot; statistic.&lt;/p&gt;</description>
                <environment></environment>
        <key id="180359">SERVER-17020</key>
            <summary>Evictions by eviction server threads are reported as evictions by application threads</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</type>
                                            <priority id="4" iconUrl="https://jira.mongodb.org/images/icons/priorities/minor.svg">Minor - P4</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="9">Done</resolution>
                                        <assignee username="keith.bostic@mongodb.com">Keith Bostic</assignee>
                                    <reporter username="bruce.lucas@mongodb.com">Bruce Lucas</reporter>
                        <labels>
                            <label>wiredtiger</label>
                    </labels>
                <created>Fri, 23 Jan 2015 13:53:41 +0000</created>
                <updated>Wed, 28 Jan 2015 22:09:17 +0000</updated>
                            <resolved>Tue, 27 Jan 2015 14:05:44 +0000</resolved>
                                    <version>2.8.0-rc5</version>
                                    <fixVersion>3.0.0-rc7</fixVersion>
                                    <component>Storage</component>
                    <component>WiredTiger</component>
                                        <votes>0</votes>
                                    <watches>10</watches>
                                                                                                                <comments>
                            <comment id="814247" author="keith.bostic" created="Tue, 27 Jan 2015 14:05:10 +0000"  >&lt;p&gt;All changes merged into the WiredTiger RC7 branch, resolving.&lt;/p&gt;</comment>
                            <comment id="813522" author="keith.bostic" created="Mon, 26 Jan 2015 20:18:35 +0000"  >&lt;p&gt;I went another way in my &lt;a href=&quot;https://github.com/wiredtiger/wiredtiger/pull/1596&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;suggested patch #1596&lt;/a&gt;, I don&apos;t see value in counting the function calls, so I shuffled the code so the counters aren&apos;t incremented until after we have a page that we&apos;re going to try and evict.&lt;/p&gt;

&lt;p&gt;I did add another counter so we count the eviction attempts by application threads, vs. eviction worker threads, vs. the eviction server itself.&lt;/p&gt;

&lt;p&gt;All that said, I haven&apos;t been the primary debugger of WiredTiger eviction problems historically, so I&apos;m going to defer to others as to which statistics are the most useful.&lt;/p&gt;</comment>
                            <comment id="813477" author="mdcallag" created="Mon, 26 Jan 2015 20:07:31 +0000"  >&lt;p&gt;From looking at the code quickly, call doesn&apos;t imply eviction. Are two counters needed? One for calls and another for calls that do an eviction?&lt;/p&gt;</comment>
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