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    <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-71372] getMore fails to return partial results from find on sharded cluster</title>
                <link>https://jira.mongodb.org/browse/SERVER-71372</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;When running a getMore command on a find cursor on a sharded cluster, with the &lt;tt&gt;allowPartialResults&lt;/tt&gt; and &lt;tt&gt;maxTimeMS&lt;/tt&gt; parameters set, we sometimes return a &lt;tt&gt;maxTimeMSExpired&lt;/tt&gt; error even when partial results are available from at least one shard.&lt;/p&gt;

&lt;p&gt;This is related to the functionality introduced in &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-57469&quot; title=&quot;Return partial results from subset of shards when `maxTimeMS` and `allowPartialResults` are set&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-57469&quot;&gt;&lt;del&gt;SERVER-57469&lt;/del&gt;&lt;/a&gt;.&lt;/p&gt;

&lt;p&gt;In these cases, &lt;a href=&quot;https://github.com/10gen/mongo/blob/42e9e3a2627e751faee01d138c3e85e81ff0a24a/src/mongo/s/query/cluster_find.cpp#L890&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;a call&lt;/a&gt; to &lt;a href=&quot;https://github.com/10gen/mongo/blob/42e9e3a2627e751faee01d138c3e85e81ff0a24a/src/mongo/s/query/cluster_client_cursor_impl.cpp#L161&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;&lt;tt&gt;ClusterClientCursorImpl::partialResultsReturned()&lt;/tt&gt;&lt;/a&gt; is unexpectedly returning &lt;tt&gt;false&lt;/tt&gt; because the &lt;tt&gt;ClusterClientCursorImpl::next()&lt;/tt&gt; does not set &lt;tt&gt;_maxTimeMSExpired&lt;/tt&gt; in a case when the &lt;a href=&quot;https://github.com/10gen/mongo/blob/42e9e3a2627e751faee01d138c3e85e81ff0a24a/src/mongo/s/query/cluster_client_cursor_impl.cpp#L118&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;&lt;tt&gt;BlockingResultsMerger&lt;/tt&gt; can return a &lt;tt&gt;MaxTimeMSExpired&lt;/tt&gt; error.&lt;/a&gt;&lt;/p&gt;</description>
                <environment></environment>
        <key id="2186458">SERVER-71372</key>
            <summary>getMore fails to return partial results from find on sharded cluster</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="steve.tarzia@mongodb.com">Steve Tarzia</assignee>
                                    <reporter username="steve.tarzia@mongodb.com">Steve Tarzia</reporter>
                        <labels>
                    </labels>
                <created>Tue, 15 Nov 2022 14:20:34 +0000</created>
                <updated>Sun, 29 Oct 2023 21:30:32 +0000</updated>
                            <resolved>Wed, 16 Nov 2022 13:35:11 +0000</resolved>
                                                    <fixVersion>6.2.0-rc2</fixVersion>
                    <fixVersion>6.3.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="4987408" author="xgen-internal-githook" created="Wed, 16 Nov 2022 17:28:45 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Steve Tarzia&apos;, &apos;email&apos;: &apos;steve.tarzia@mongodb.com&apos;, &apos;username&apos;: &apos;starzia&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-71372&quot; title=&quot;getMore fails to return partial results from find on sharded cluster&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-71372&quot;&gt;&lt;del&gt;SERVER-71372&lt;/del&gt;&lt;/a&gt; fix getMore of partial results from find on sharded cluster&lt;br/&gt;
Branch: v6.2&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/29296c1ed9d000f761d908e1c32363acb0802568&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/29296c1ed9d000f761d908e1c32363acb0802568&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="4985333" author="xgen-internal-githook" created="Tue, 15 Nov 2022 23:52:52 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Steve Tarzia&apos;, &apos;email&apos;: &apos;steve.tarzia@mongodb.com&apos;, &apos;username&apos;: &apos;starzia&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-71372&quot; title=&quot;getMore fails to return partial results from find on sharded cluster&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-71372&quot;&gt;&lt;del&gt;SERVER-71372&lt;/del&gt;&lt;/a&gt; fix getMore of partial results from find on sharded cluster&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/ae246015f40339ba3a0a0898a233f3085129942e&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/ae246015f40339ba3a0a0898a233f3085129942e&lt;/a&gt;&lt;/p&gt;</comment>
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