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    <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-69702] TaskExecutorCursor can fail to populate _rcr with updated opCtx if multiple cursors returned</title>
                <link>https://jira.mongodb.org/browse/SERVER-69702</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;TaskExecutorCursor can issue queries that the remote can respond to with multiple cursors. In such cases, we use the TaskExecutorCursor that issued the query to handle the first cursor, and create new TaskExecutorCursors for each additional cursor in the response using &lt;a href=&quot;https://github.com/mongodb/mongo/blob/790dde10c5f653c65b394cf397e96d099e2f5d03/src/mongo/executor/task_executor_cursor.cpp#L59-L66&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;this constructor&lt;/a&gt; &lt;a href=&quot;https://github.com/mongodb/mongo/blob/790dde10c5f653c65b394cf397e96d099e2f5d03/src/mongo/executor/task_executor_cursor.cpp#L249-L252&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;here&lt;/a&gt;&#160;.&#160;&lt;/p&gt;

&lt;p&gt;We rely on our processing of the first cursor to update the _rcr we pass into the constructor with the &apos;new&apos; opCtx &lt;a href=&quot;https://github.com/mongodb/mongo/blob/790dde10c5f653c65b394cf397e96d099e2f5d03/src/mongo/executor/task_executor_cursor.cpp#L162&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/blob/790dde10c5f653c65b394cf397e96d099e2f5d03/src/mongo/executor/task_executor_cursor.cpp#L162&lt;/a&gt; - but if the first cursor id is 0 / there is no more additional data in it, we&apos;ll skip doing that population here &lt;a href=&quot;https://github.com/mongodb/mongo/blob/790dde10c5f653c65b394cf397e96d099e2f5d03/src/mongo/executor/task_executor_cursor.cpp#L210.&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/blob/790dde10c5f653c65b394cf397e96d099e2f5d03/src/mongo/executor/task_executor_cursor.cpp#L210.&lt;/a&gt; As a result, the _rcr we pass to construct the additional TECs can have a &apos;stale&apos; opCtx in it - the one that was originally used to issue the first query - which may be destroyed when these constructors are called.&lt;/p&gt;</description>
                <environment></environment>
        <key id="2136501">SERVER-69702</key>
            <summary>TaskExecutorCursor can fail to populate _rcr with updated opCtx if multiple cursors returned</summary>
                <type id="3" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14718&amp;avatarType=issuetype">Task</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="george.wangensteen@mongodb.com">George Wangensteen</assignee>
                                    <reporter username="george.wangensteen@mongodb.com">George Wangensteen</reporter>
                        <labels>
                    </labels>
                <created>Wed, 14 Sep 2022 17:01:58 +0000</created>
                <updated>Sun, 29 Oct 2023 21:33:16 +0000</updated>
                            <resolved>Fri, 16 Sep 2022 16:52:19 +0000</resolved>
                                                    <fixVersion>6.2.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="4833773" author="xgen-internal-githook" created="Fri, 16 Sep 2022 14:58:57 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;George Wangensteen&apos;, &apos;email&apos;: &apos;george.wangensteen@mongodb.com&apos;, &apos;username&apos;: &apos;gewa24&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-69702&quot; title=&quot;TaskExecutorCursor can fail to populate _rcr with updated opCtx if multiple cursors returned&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-69702&quot;&gt;&lt;del&gt;SERVER-69702&lt;/del&gt;&lt;/a&gt; Ensure TaskExecutorCursor&apos;s constructed from multi-cursor replies have correct OperationContext&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/228a21b45bbe9978c80059538d2136afd337fed8&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/228a21b45bbe9978c80059538d2136afd337fed8&lt;/a&gt;&lt;/p&gt;</comment>
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