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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-16143] WriteConflict returned to client with concurrent multikey index inserts</title>
                <link>https://jira.mongodb.org/browse/SERVER-16143</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;We have a handful of threads doing inserts and finds against a collection with a multikey index.  The inserts should succeed, but the WriteResult returned by the server looks like this:&lt;/p&gt;

&lt;p/&gt;
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&lt;p/&gt;

&lt;p&gt;The bug can happen with as few as 2 threads, but it is more reliable to reproduce with ~8 threads.  Running with dozens or hundreds of threads seems to make it less reliable to reproduce.&lt;/p&gt;</description>
                <environment></environment>
        <key id="169213">SERVER-16143</key>
            <summary>WriteConflict returned to client with concurrent multikey index inserts</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="kaloian.manassiev@mongodb.com">Kaloian Manassiev</assignee>
                                    <reporter username="david.percy@mongodb.com">David Percy</reporter>
                        <labels>
                            <label>28qa</label>
                    </labels>
                <created>Thu, 13 Nov 2014 23:48:01 +0000</created>
                <updated>Mon, 11 Jul 2016 17:16:53 +0000</updated>
                            <resolved>Wed, 26 Nov 2014 12:29:54 +0000</resolved>
                                    <version>2.8.0-rc0</version>
                                    <fixVersion>2.8.0-rc2</fixVersion>
                                    <component>Concurrency</component>
                                        <votes>0</votes>
                                    <watches>9</watches>
                                                                                                                <comments>
                            <comment id="773253" author="xgen-internal-githook" created="Wed, 26 Nov 2014 12:22:21 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;kaloianm&apos;, u&apos;name&apos;: u&apos;Kaloian Manassiev&apos;, u&apos;email&apos;: u&apos;kaloian.manassiev@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-16143&quot; title=&quot;WriteConflict returned to client with concurrent multikey index inserts&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-16143&quot;&gt;&lt;del&gt;SERVER-16143&lt;/del&gt;&lt;/a&gt; Update multiKey metadata in a separate transaction&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/45790039049d7375beafe122622363d35ce990c2&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/45790039049d7375beafe122622363d35ce990c2&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="771172" author="xgen-internal-githook" created="Mon, 24 Nov 2014 15:36:41 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;kaloianm&apos;, u&apos;name&apos;: u&apos;Kaloian Manassiev&apos;, u&apos;email&apos;: u&apos;kaloian.manassiev@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-16143&quot; title=&quot;WriteConflict returned to client with concurrent multikey index inserts&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-16143&quot;&gt;&lt;del&gt;SERVER-16143&lt;/del&gt;&lt;/a&gt; Remove RESOURCE_DOCUMENT and add a RESOURCE_METADATA&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/5f54b41eb7ab23f1594610aa6950d07b666f0deb&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/5f54b41eb7ab23f1594610aa6950d07b666f0deb&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="763980" author="eliot" created="Thu, 13 Nov 2014 23:49:42 +0000"  >&lt;p&gt;Repro?&lt;/p&gt;</comment>
                    </comments>
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                                        <issuelink>
            <issuekey id="169350">SERVER-16159</issuekey>
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                <attachments>
                            <attachment id="57128" name="writeconflict-invariant-log" size="64027" author="david.percy@mongodb.com" created="Fri, 14 Nov 2014 20:31:28 +0000"/>
                            <attachment id="57003" name="writeconflict-log" size="20406" author="david.percy@mongodb.com" created="Thu, 13 Nov 2014 23:48:01 +0000"/>
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