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    <title>MongoDB Jira</title>
    <link>https://jira.mongodb.org</link>
    <description>This file is an XML representation of an issue</description>
    <language>en-us</language>    <build-info>
        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-79217] Race in PrimaryOnlyServiceMongoDTest::stepUp causes invariant failure</title>
                <link>https://jira.mongodb.org/browse/SERVER-79217</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;PrimaryOnlyServiceMongoDTest::stepUp artificially advances the last applied optime by incrementing the term but keeping the same timestamp. Reading the existing timestamp and updating it are done non-atomically, so if there are operations in the background that could modify the last applied op time, then it is possible that stepUp could try to set the op time to an older time, triggering an invariant failure.&lt;/p&gt;

&lt;p&gt;PrimaryOnlyServiceTest runs into this race because the _rebuildService implementation in the service it uses (TestService) builds an index. _rebuildService is invoked asynchronously via opStepUpComplete, so its possible that a test case could begin while this index build is happening in the background.&lt;/p&gt;

&lt;p&gt;There are several test cases that may fail due to this (e.g. ShutdownDuringStepUp and StateTransitionFromRebuildingShouldWakeUpConditionVariable).&lt;/p&gt;</description>
                <environment></environment>
        <key id="2398424">SERVER-79217</key>
            <summary>Race in PrimaryOnlyServiceMongoDTest::stepUp causes invariant failure</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="13201">Fixed</resolution>
                                        <assignee username="patrick.freed@mongodb.com">Patrick Freed</assignee>
                                    <reporter username="patrick.freed@mongodb.com">Patrick Freed</reporter>
                        <labels>
                    </labels>
                <created>Fri, 21 Jul 2023 21:51:50 +0000</created>
                <updated>Thu, 16 Nov 2023 18:49:49 +0000</updated>
                            <resolved>Thu, 3 Aug 2023 17:29:49 +0000</resolved>
                                                    <fixVersion>7.1.0-rc0</fixVersion>
                    <fixVersion>7.0.5</fixVersion>
                                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="5872732" author="xgen-internal-githook" created="Sat, 11 Nov 2023 00:44:12 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;Patrick Freed&apos;, &apos;email&apos;: &apos;patrick.freed@mongodb.com&apos;, &apos;username&apos;: &apos;patrickfreed&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-79217&quot; title=&quot;Race in PrimaryOnlyServiceMongoDTest::stepUp causes invariant failure&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-79217&quot;&gt;&lt;del&gt;SERVER-79217&lt;/del&gt;&lt;/a&gt; Wait for step up to fully complete in PrimaryOnlyService tests&lt;/p&gt;

&lt;p&gt;(cherry picked from commit 220f515a6e6aac4b8d6e79ed917c4816522475a4)&lt;br/&gt;
Branch: v7.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/2477e351ad0049c224d0dbaa698d135b53338a32&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/2477e351ad0049c224d0dbaa698d135b53338a32&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="5609223" author="xgen-internal-githook" created="Thu, 3 Aug 2023 01:06:39 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;Patrick Freed&apos;, &apos;email&apos;: &apos;patrick.freed@mongodb.com&apos;, &apos;username&apos;: &apos;patrickfreed&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-79217&quot; title=&quot;Race in PrimaryOnlyServiceMongoDTest::stepUp causes invariant failure&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-79217&quot;&gt;&lt;del&gt;SERVER-79217&lt;/del&gt;&lt;/a&gt; Wait for step up to fully complete in PrimaryOnlyService tests&lt;br/&gt;
Branch: minh.luu-no_compile_sys-perf&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/220f515a6e6aac4b8d6e79ed917c4816522475a4&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/220f515a6e6aac4b8d6e79ed917c4816522475a4&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="5608582" author="xgen-internal-githook" created="Wed, 2 Aug 2023 19:26:30 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;Patrick Freed&apos;, &apos;email&apos;: &apos;patrick.freed@mongodb.com&apos;, &apos;username&apos;: &apos;patrickfreed&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-79217&quot; title=&quot;Race in PrimaryOnlyServiceMongoDTest::stepUp causes invariant failure&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-79217&quot;&gt;&lt;del&gt;SERVER-79217&lt;/del&gt;&lt;/a&gt; Wait for step up to fully complete in PrimaryOnlyService tests&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/220f515a6e6aac4b8d6e79ed917c4816522475a4&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/220f515a6e6aac4b8d6e79ed917c4816522475a4&lt;/a&gt;&lt;/p&gt;</comment>
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