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    <title>MongoDB Jira</title>
    <link>https://jira.mongodb.org</link>
    <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-22590] applyChunkOpsDeprecated retries and throws an error on preCondition no longer matching because the original write worked</title>
                <link>https://jira.mongodb.org/browse/SERVER-22590</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;If the applyChunkOpsDeprecated&apos;s applyOps write works, but doesn&apos;t send back OK, it will retry. However, because the first write worked, the precondition does not match and it returns an error. applyChunkOpsDeprecated should double check whether the chunk changes did actually make it into the oplog, and if so return success.&lt;/p&gt;

&lt;p&gt;moveChunk already deals with this issue, but splitChunk and mergeChunk do not. ChunkMoveOperationState::commitMigration looks at the result of applyChunkOpsDeprecated and if there&apos;s an error reloads the chunk information from the oplog and checks to see if the new version number is there &amp;#8211; if so, it succeeded.&lt;/p&gt;

&lt;p&gt;Potential solution:&lt;br/&gt;
add a parameter (ChunkType?) to applyChunkOpsDeprecated that holds the last chunk and chunk version of the ops being applied by applyOps. Move the applyOpsStatus logic in ChunkMoveOperationState::commitMigration into applyChunkOpsDeprecated and generalize it to handle move/split/merge versioning checks.&lt;/p&gt;</description>
                <environment></environment>
        <key id="265073">SERVER-22590</key>
            <summary>applyChunkOpsDeprecated retries and throws an error on preCondition no longer matching because the original write worked</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="dianna.hohensee@mongodb.com">Dianna Hohensee</assignee>
                                    <reporter username="dianna.hohensee@mongodb.com">Dianna Hohensee</reporter>
                        <labels>
                            <label>code-and-test</label>
                    </labels>
                <created>Fri, 12 Feb 2016 14:49:04 +0000</created>
                <updated>Sat, 19 Nov 2016 20:05:43 +0000</updated>
                            <resolved>Thu, 25 Feb 2016 17:08:07 +0000</resolved>
                                                    <fixVersion>3.2.4</fixVersion>
                    <fixVersion>3.3.3</fixVersion>
                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="1184652" author="xgen-internal-githook" created="Thu, 25 Feb 2016 17:07:26 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;DiannaHohensee&apos;, u&apos;name&apos;: u&apos;Dianna Hohensee&apos;, u&apos;email&apos;: u&apos;dianna.hohensee@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-22590&quot; title=&quot;applyChunkOpsDeprecated retries and throws an error on preCondition no longer matching because the original write worked&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-22590&quot;&gt;&lt;del&gt;SERVER-22590&lt;/del&gt;&lt;/a&gt; improve applyChunkOpsDeprecated to check for false failures in chunk operations&lt;/p&gt;

&lt;p&gt;(cherry picked from commit ff296b3279257d2ff8e53ee90eb0f6a6f5c562f4)&lt;br/&gt;
Branch: v3.2&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/77358fcc55c37446a1964441ab27b3fb19f4b060&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/77358fcc55c37446a1964441ab27b3fb19f4b060&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1183780" author="xgen-internal-githook" created="Wed, 24 Feb 2016 22:16:06 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;DiannaHohensee&apos;, u&apos;name&apos;: u&apos;Dianna Hohensee&apos;, u&apos;email&apos;: u&apos;dianna.hohensee@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-22590&quot; title=&quot;applyChunkOpsDeprecated retries and throws an error on preCondition no longer matching because the original write worked&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-22590&quot;&gt;&lt;del&gt;SERVER-22590&lt;/del&gt;&lt;/a&gt; improve applyChunkOpsDeprecated to check for false failures in chunk operations&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/ff296b3279257d2ff8e53ee90eb0f6a6f5c562f4&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/ff296b3279257d2ff8e53ee90eb0f6a6f5c562f4&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="268002">SERVER-22849</issuekey>
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