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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-70654] Add a warning when using find during moveChunk for a hashed shard key</title>
                <link>https://jira.mongodb.org/browse/SERVER-70654</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;In most cases, using moveChunk with find if the shard key is hashed is a user mistake (in face, &lt;a href=&quot;https://www.mongodb.com/docs/manual/reference/command/moveChunk/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;our docs&lt;/a&gt; explicitly say not to do so). However, when a user does this, it can end up with unexpected behavior that makes debugging the problem difficult. A user tried to use &lt;tt&gt;sh.moveChunk&lt;/tt&gt; on a collection with a hashed shard key, and from the user perspective nothing happened because the chunk that &lt;a href=&quot;https://github.com/mongodb/mongo/blob/be9cb19df95eb7a76fa4e54051256d3b629d9bba/src/mongo/s/commands/cluster_move_chunk_cmd.cpp#L155&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;the move chunk command chose &lt;/a&gt;was already on the correct shard.&lt;/p&gt;

&lt;p&gt;It would be helpful to users to emit some warning saying that using find with a hashed shard key is not recommended and that they should use bounds instead.&lt;/p&gt;</description>
                <environment></environment>
        <key id="2161237">SERVER-70654</key>
            <summary>Add a warning when using find during moveChunk for a hashed shard key</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="allison.easton@mongodb.com">Allison Easton</assignee>
                                    <reporter username="allison.easton@mongodb.com">Allison Easton</reporter>
                        <labels>
                            <label>shardingemea-qw</label>
                    </labels>
                <created>Tue, 18 Oct 2022 09:25:38 +0000</created>
                <updated>Sun, 29 Oct 2023 21:31:48 +0000</updated>
                            <resolved>Wed, 9 Nov 2022 11:11:04 +0000</resolved>
                                                    <fixVersion>6.2.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="4966336" author="xgen-internal-githook" created="Wed, 9 Nov 2022 11:09:58 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Allison Easton&apos;, &apos;email&apos;: &apos;allison.easton@mongodb.com&apos;, &apos;username&apos;: &apos;allisoneaston&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-70654&quot; title=&quot;Add a warning when using find during moveChunk for a hashed shard key&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-70654&quot;&gt;&lt;del&gt;SERVER-70654&lt;/del&gt;&lt;/a&gt; Add a warning when using find during moveChunk for a hashed shard key&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/1ccd927d11fc604fdba9112e7f53e781128b6d64&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/1ccd927d11fc604fdba9112e7f53e781128b6d64&lt;/a&gt;&lt;/p&gt;</comment>
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