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    <title>MongoDB Jira</title>
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    <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-74095] Support multiple namespaces in bulkWrite sub-batching logic</title>
                <link>https://jira.mongodb.org/browse/SERVER-74095</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-72787&quot; title=&quot;Implement sub-batching logic for bulkWrite on mongos&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-72787&quot;&gt;&lt;del&gt;SERVER-72787&lt;/del&gt;&lt;/a&gt; added sub-batching logic for bulkWrite and reused most of the targeting logic from BatchWriteOp. But one thing we missed was that the target function &lt;a href=&quot;https://github.com/mongodb/mongo/blob/9325d0f2ab919ddc95c9aa1262c1b02d6e005a47/src/mongo/s/write_ops/batch_write_op.cpp#L249&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;group targeted batches based on ShardEndpoint&lt;/a&gt; (which is a struct with shardId and shard/db version). But since bulkWrite support batched writes against multiple namespaces, targeted writes for different namespaces could have different ShardEndpoints (based on &lt;a href=&quot;https://github.com/mongodb/mongo/blob/9325d0f2ab919ddc95c9aa1262c1b02d6e005a47/src/mongo/s/chunk_manager.cpp#L729&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;EndpointComp&lt;/a&gt;) even if they target the same shard. Therefore, we would end up mistakenly batching writes against different namespaces into separate batches if even they target the same shard.&lt;/p&gt;

&lt;p&gt;This ticket is to fix that and allow sub-batching writes of multiple namespaces as long as they target the same shard (regardless of the endpoint comparisons).&lt;/p&gt;</description>
                <environment></environment>
        <key id="2266467">SERVER-74095</key>
            <summary>Support multiple namespaces in bulkWrite sub-batching logic</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="lingzhi.deng@mongodb.com">Lingzhi Deng</assignee>
                                    <reporter username="lingzhi.deng@mongodb.com">Lingzhi Deng</reporter>
                        <labels>
                            <label>milestone-2</label>
                    </labels>
                <created>Thu, 16 Feb 2023 15:34:06 +0000</created>
                <updated>Sun, 29 Oct 2023 21:26:10 +0000</updated>
                            <resolved>Mon, 27 Feb 2023 17:59:19 +0000</resolved>
                                                    <fixVersion>7.0.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="5233588" author="xgen-internal-githook" created="Mon, 27 Feb 2023 17:28:08 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;Lingzhi Deng&apos;, &apos;email&apos;: &apos;lingzhi.deng@mongodb.com&apos;, &apos;username&apos;: &apos;ldennis&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-74095&quot; title=&quot;Support multiple namespaces in bulkWrite sub-batching logic&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-74095&quot;&gt;&lt;del&gt;SERVER-74095&lt;/del&gt;&lt;/a&gt;: Support multiple namespaces in bulkWrite sub-batching logic&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/7fbe34e4582891249ba3bab26777c55def4094e6&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/7fbe34e4582891249ba3bab26777c55def4094e6&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="2231752">SERVER-72787</issuekey>
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