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    <title>MongoDB Jira</title>
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    <description>This file is an XML representation of an issue</description>
    <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-20592] Split chunk doesn&apos;t retry if the chunk boundaries don&apos;t match what mongos expected</title>
                <link>https://jira.mongodb.org/browse/SERVER-20592</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;If a chunk was split by one mongos, then another mongos tries to split the same mongos, the second mongos may load the old chunk boundaries.  When the mongod gets the split command, it won&apos;t find a chunk with those exact boundaries.  At this point, the mongos should refresh and retry, as it will now have the optime from the shard needed to view the most recent chunk boundary, but currently it does not, it just fails&lt;/p&gt;</description>
                <environment></environment>
        <key id="231232">SERVER-20592</key>
            <summary>Split chunk doesn&apos;t retry if the chunk boundaries don&apos;t match what mongos expected</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="9">Done</resolution>
                                        <assignee username="spencer@mongodb.com">Spencer Brody</assignee>
                                    <reporter username="spencer@mongodb.com">Spencer Brody</reporter>
                        <labels>
                    </labels>
                <created>Wed, 23 Sep 2015 22:06:18 +0000</created>
                <updated>Wed, 25 Jan 2017 22:00:01 +0000</updated>
                            <resolved>Mon, 28 Sep 2015 17:28:31 +0000</resolved>
                                    <version>3.1.8</version>
                                    <fixVersion>3.1.9</fixVersion>
                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="1045135" author="xgen-internal-githook" created="Mon, 28 Sep 2015 17:27:55 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;stbrody&apos;, u&apos;name&apos;: u&apos;Spencer T Brody&apos;, u&apos;email&apos;: u&apos;spencer@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-20592&quot; title=&quot;Split chunk doesn&amp;#39;t retry if the chunk boundaries don&amp;#39;t match what mongos expected&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-20592&quot;&gt;&lt;del&gt;SERVER-20592&lt;/del&gt;&lt;/a&gt; Retry split chunk if it fails due to stale chunk boundaries&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/6d2fa05f1e54acbbb684a6a7616e283c9651d644&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/6d2fa05f1e54acbbb684a6a7616e283c9651d644&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1042359" author="xgen-internal-githook" created="Thu, 24 Sep 2015 17:57:01 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;stbrody&apos;, u&apos;name&apos;: u&apos;Spencer T Brody&apos;, u&apos;email&apos;: u&apos;spencer@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-20592&quot; title=&quot;Split chunk doesn&amp;#39;t retry if the chunk boundaries don&amp;#39;t match what mongos expected&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-20592&quot;&gt;&lt;del&gt;SERVER-20592&lt;/del&gt;&lt;/a&gt; Disable csrs_upgrade.js test due to bug with moveChunk&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/543f81a81d31098e464238398f5a20d1d2453b25&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/543f81a81d31098e464238398f5a20d1d2453b25&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1041410" author="spencer" created="Wed, 23 Sep 2015 22:06:51 +0000"  >&lt;p&gt;Proposed solution is to make the mongod return the stale shard version error code in these cases, which will trigger retry logic on the mongos.&lt;/p&gt;</comment>
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            <issuekey id="231872">SERVER-20676</issuekey>
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