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        <build-date>13-04-2023</build-date>
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            <title>[SERVER-44369] shardCollection can fail on config server failover if primary shard finishes _shardsvrShardCollection before the stepdown thread kills ops</title>
                <link>https://jira.mongodb.org/browse/SERVER-44369</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;A shardCollection command can fail in the following scenario:&lt;br/&gt;
1. Config server primary sends _shardsvrShardColection to primary shard&lt;br/&gt;
2. The stepdown thread starts running on the config server&lt;br/&gt;
3. _shardsvrShardCollection writes to config.chunks and config.collections on the new primary config server&lt;br/&gt;
4. _shardsvrShardCollection finishes and returns back to the original config primary &lt;b&gt;before&lt;/b&gt; the stepdown thread began killing operations, so the config server will read a stale routing table&lt;/p&gt;

&lt;p&gt;In this case, the primary shard wrote the new chunks to config.chunks and marked the collection as sharded in config.collections successfully on the new primary config, so a user can retry and the command should succeed immediately.&lt;/p&gt;</description>
                <environment></environment>
        <key id="987532">SERVER-44369</key>
            <summary>shardCollection can fail on config server failover if primary shard finishes _shardsvrShardCollection before the stepdown thread kills ops</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="backlog-server-sharding-emea">[DO NOT USE] Backlog - Sharding EMEA</assignee>
                                    <reporter username="janna.golden@mongodb.com">Janna Golden</reporter>
                        <labels>
                            <label>sharding-DDL-bugs</label>
                            <label>sharding-csrs-stepdown-also</label>
                    </labels>
                <created>Fri, 1 Nov 2019 17:51:37 +0000</created>
                <updated>Sun, 29 Oct 2023 22:15:28 +0000</updated>
                            <resolved>Tue, 31 May 2022 13:51:14 +0000</resolved>
                                                    <fixVersion>5.0.0</fixVersion>
                                    <component>Sharding</component>
                                        <votes>0</votes>
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