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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-60325] Stop DocumentSourceCursorTest from calling saveState() twice in a row</title>
                <link>https://jira.mongodb.org/browse/SERVER-60325</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;&lt;a href=&quot;https://logkeeper.mongodb.org/lobster/build/ce6f181fece9c8d71dbe3fc4700a0878/test/6154c30854f24814fc28a4c9#bookmarks=42&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Logs&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;When SBE is turned on, &lt;a href=&quot;https://github.com/10gen/mongo/blob/32f1ceb54a6cdd8beccf7416faab09fe0d79549d/src/mongo/db/exec/sbe/stages/stages.h#L138&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;this invariant&lt;/a&gt; fails:&lt;/p&gt;

&lt;p&gt;&lt;tt&gt;invariant(_saveState == SaveState::kNotSaved);&lt;/tt&gt;&lt;/p&gt;

&lt;p&gt;This is because DocumentSourceCursorTest seems to call &lt;tt&gt;saveState()&lt;/tt&gt; twice in a row. We should investigate why it does this, and remove one of these calls if it is reasonable to do so. &lt;/p&gt;</description>
                <environment></environment>
        <key id="1886482">SERVER-60325</key>
            <summary>Stop DocumentSourceCursorTest from calling saveState() twice in a row</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="jennifer.peshansky@mongodb.com">Jennifer Peshansky</assignee>
                                    <reporter username="jennifer.peshansky@mongodb.com">Jennifer Peshansky</reporter>
                        <labels>
                    </labels>
                <created>Wed, 29 Sep 2021 20:26:15 +0000</created>
                <updated>Sun, 29 Oct 2023 21:48:01 +0000</updated>
                            <resolved>Thu, 30 Sep 2021 16:53:48 +0000</resolved>
                                                    <fixVersion>5.1.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="4106517" author="JIRAUSER1259052" created="Wed, 6 Oct 2021 17:27:10 +0000"  >&lt;p&gt;Updating the fixversion since branching activities occurred yesterday. This ticket will be in rc0 when it&#8217;s been triggered. For more active release information, please keep an eye on #server-release. Thank you!&lt;/p&gt;</comment>
                            <comment id="4094680" author="JIRAUSER1258420" created="Thu, 30 Sep 2021 16:53:23 +0000"  >&lt;p&gt;Filed &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-60355&quot; title=&quot;Investigate whether there are unnecessary saveState() calls in dbtests&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-60355&quot;&gt;&lt;del&gt;SERVER-60355&lt;/del&gt;&lt;/a&gt; as a follow-up to this.&lt;/p&gt;</comment>
                            <comment id="4094668" author="xgen-internal-githook" created="Thu, 30 Sep 2021 16:48:57 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Jennifer Peshansky&apos;, &apos;email&apos;: &apos;jennifer.peshansky@mongodb.com&apos;, &apos;username&apos;: &apos;jenniferpeshansky&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-60325&quot; title=&quot;Stop DocumentSourceCursorTest from calling saveState() twice in a row&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-60325&quot;&gt;&lt;del&gt;SERVER-60325&lt;/del&gt;&lt;/a&gt; Remove extraneous call to exec-&amp;gt;saveState() in documentsourcetests.cpp&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/9f8e95a95b592c3686dcb1aa82ebcd9b7515974b&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/9f8e95a95b592c3686dcb1aa82ebcd9b7515974b&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="4092868" author="JIRAUSER1258420" created="Wed, 29 Sep 2021 20:35:08 +0000"  >&lt;p&gt;Within the test, &lt;tt&gt;saveState()&lt;/tt&gt; is called &lt;a href=&quot;https://github.com/10gen/mongo/blob/2361822068027ab179bf0bbab15c5559612130a6/src/mongo/dbtests/documentsourcetests.cpp#L109&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;here&lt;/a&gt;. It looks like we&apos;re also calling it somewhere else along the way.&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;https://github.com/10gen/mongo/blob/2361822068027ab179bf0bbab15c5559612130a6/src/mongo/dbtests/documentsourcetests.cpp#L144-L152&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Here&lt;/a&gt; is the failing test.&lt;/p&gt;

&lt;p&gt;My current best guess is that it has something to do with the call to saveState &lt;a href=&quot;https://github.com/10gen/mongo/blob/46ba1b4ec34ddb0bdecaa8261f770bbf1c860216/src/mongo/db/query/plan_yield_policy.cpp#L96&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;here&lt;/a&gt;, within plan_yield_policy.cpp. We reference plan_yield_policy in the getExecutor call &lt;a href=&quot;https://github.com/10gen/mongo/blob/2361822068027ab179bf0bbab15c5559612130a6/src/mongo/dbtests/documentsourcetests.cpp#L106&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;here&lt;/a&gt;: &lt;/p&gt;

&lt;blockquote&gt;&lt;p&gt; &lt;tt&gt;auto exec = uassertStatusOK(getExecutor(opCtx(),&lt;/tt&gt;&lt;br/&gt;
                                                &lt;tt&gt;&amp;amp;_coll,&lt;/tt&gt;&lt;br/&gt;
                                                &lt;tt&gt;std::move(cq),&lt;/tt&gt;&lt;br/&gt;
                                                &lt;tt&gt;nullptr /* extractAndAttachPipelineStages */,&lt;/tt&gt;&lt;br/&gt;
                                                &lt;tt&gt;PlanYieldPolicy::YieldPolicy::NO_YIELD,&lt;/tt&gt;&lt;br/&gt;
                                                &lt;tt&gt;QueryPlannerParams::RETURN_OWNED_DATA));&lt;/tt&gt;&lt;/p&gt;

&lt;p&gt;        &lt;tt&gt;exec-&amp;gt;saveState();&lt;/tt&gt;&lt;/p&gt;&lt;/blockquote&gt;

&lt;p&gt;I believe I just need to remove the extraneous call to exec-&amp;gt;saveState() &lt;a href=&quot;https://github.com/10gen/mongo/blob/2361822068027ab179bf0bbab15c5559612130a6/src/mongo/dbtests/documentsourcetests.cpp#L109&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;here&lt;/a&gt;.&lt;/p&gt;</comment>
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                                                                <inwardlinks description="is depended on by">
                                        <issuelink>
            <issuekey id="1845285">SERVER-59178</issuekey>
        </issuelink>
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            <issuekey id="1887109">SERVER-60355</issuekey>
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