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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-6134] stale mongod view of shards causes m/r error</title>
                <link>https://jira.mongodb.org/browse/SERVER-6134</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;If a shard is removed during the M/R process, due to &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-5625&quot; title=&quot;New sharded connections to a namespace trigger setShardVersion on all shards&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-5625&quot;&gt;&lt;del&gt;SERVER-5625&lt;/del&gt;&lt;/a&gt;, it is possible the shardedFinish will try to contact the stale shard and fail.&lt;/p&gt;

&lt;p&gt;2.1.2 improves the error message but does not fully solve.  There isn&apos;t a way currently to manually refresh the shard view aside from triggering a migration (only in 2.1.2).&lt;/p&gt;

&lt;p&gt;Better messaging should be put around socket exceptions due to &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-5625&quot; title=&quot;New sharded connections to a namespace trigger setShardVersion on all shards&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-5625&quot;&gt;&lt;del&gt;SERVER-5625&lt;/del&gt;&lt;/a&gt;, as the nested exception is pretty confusing to track.&lt;/p&gt;</description>
                <environment></environment>
        <key id="41801">SERVER-6134</key>
            <summary>stale mongod view of shards causes m/r error</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="2">Won&apos;t Fix</resolution>
                                        <assignee username="backlog-server-sharding">[DO NOT USE] Backlog - Sharding Team</assignee>
                                    <reporter username="greg_10gen">Greg Studer</reporter>
                        <labels>
                    </labels>
                <created>Tue, 19 Jun 2012 21:14:35 +0000</created>
                <updated>Tue, 6 Dec 2022 05:32:17 +0000</updated>
                            <resolved>Wed, 21 Mar 2018 19:08:44 +0000</resolved>
                                    <version>2.0.6</version>
                    <version>2.1.2</version>
                                                    <component>MapReduce</component>
                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="134533" author="greg_10gen" created="Tue, 19 Jun 2012 21:46:39 +0000"  >&lt;p&gt;Only currently known 2.0 workaround is to cycle the shard primary and restart the previous primary while secondary.  &lt;/p&gt;</comment>
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            <issuekey id="36424">SERVER-5625</issuekey>
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                            <attachment id="17373" name="mr_stale_shards.js" size="1671" author="greg_10gen" created="Tue, 19 Jun 2012 21:14:35 +0000"/>
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