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        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-23769] Add new cluster ID sanity checks for cluster with all node shard aware</title>
                <link>https://jira.mongodb.org/browse/SERVER-23769</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;ul class=&quot;alternate&quot; type=&quot;square&quot;&gt;
	&lt;li&gt;Whenever a mongos connects to a shard, the cluster id should match that of the mongos. This is achieved by checking the clusterId response from the isMaster response. The only exception to this rule is during the process of adding the shard.&lt;/li&gt;
	&lt;li&gt;Whenever a mongos or mongod connects to a config server, the cluster id should match with the current one it is a member of.&lt;/li&gt;
	&lt;li&gt;When a mongos starts up, it will initially have the no knowledge of the clusterId and it will get this information from the first config server it contacts. Since a mongos will need to talk to a config server before it can learn about the shards, it should use the clusterId to double check with the shards.&lt;/li&gt;
&lt;/ul&gt;
</description>
                <environment></environment>
        <key id="280166">SERVER-23769</key>
            <summary>Add new cluster ID sanity checks for cluster with all node shard aware</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="12300">Won&apos;t Do</resolution>
                                        <assignee username="backlog-server-sharding">[DO NOT USE] Backlog - Sharding Team</assignee>
                                    <reporter username="randolph@mongodb.com">Randolph Tan</reporter>
                        <labels>
                            <label>PM-108</label>
                            <label>max-triage</label>
                    </labels>
                <created>Fri, 15 Apr 2016 21:20:17 +0000</created>
                <updated>Tue, 6 Dec 2022 04:27:50 +0000</updated>
                            <resolved>Fri, 12 Nov 2021 13:28:11 +0000</resolved>
                                                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>5</watches>
                                                                                                                <comments>
                            <comment id="1498880" author="dianna.hohensee" created="Tue, 14 Feb 2017 20:28:31 +0000"  >&lt;p&gt;Currently we assure that a server A is receiving a command from another server X in the same cluster by checking the &apos;configdb&apos; command parameter of setShardVersion against server A&apos;s knowledge of what the config connection string is: done &lt;a href=&quot;https://github.com/mongodb/mongo/blob/6fd2e18a77a3b288364323b0452372487e951280/src/mongo/db/s/set_shard_version_command.cpp#L166-L190&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;here&lt;/a&gt;.&lt;/p&gt;

&lt;p&gt;Once the cluster ID check is in place, we should remove the &apos;configdb&apos; config connection string check in setShardVersion. For backwards compatibility, we should accept clusterId not being present and skipping the check.&lt;/p&gt;</comment>
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            <issuekey id="229321">SERVER-20371</issuekey>
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            <issuekey id="271907">SERVER-23096</issuekey>
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