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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-19694] Distributed lock should retry on duplicate key error creating the lock entry</title>
                <link>https://jira.mongodb.org/browse/SERVER-19694</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;If two threads/processes both try to create a distributed lock on a new entity at the same time (for instance if they are both trying to create the same new database), then due to &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-14322&quot; title=&quot;Retry on predicate unique index violations of update + upsert -&amp;gt; insert when possible&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-14322&quot;&gt;&lt;del&gt;SERVER-14322&lt;/del&gt;&lt;/a&gt;, one of them might get a duplicate key error creating the entry in the config.locks collection.  When we get that, currently we abandon trying to get the lock, even if we have more time left in our retry interval.  We should be able to retry lock acquisition in this case, which is likely to succeed so long as the other process which was able to successfully create the config.locks entry releases the lock quickly.&lt;/p&gt;</description>
                <environment></environment>
        <key id="223667">SERVER-19694</key>
            <summary>Distributed lock should retry on duplicate key error creating the lock entry</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="randolph@mongodb.com">Randolph Tan</assignee>
                                    <reporter username="spencer@mongodb.com">Spencer Brody</reporter>
                        <labels>
                    </labels>
                <created>Fri, 31 Jul 2015 20:19:42 +0000</created>
                <updated>Wed, 25 Jan 2017 22:00:29 +0000</updated>
                            <resolved>Mon, 10 Aug 2015 15:02:59 +0000</resolved>
                                                    <fixVersion>3.1.7</fixVersion>
                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="1000749" author="xgen-internal-githook" created="Mon, 10 Aug 2015 15:02:16 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;renctan&apos;, u&apos;name&apos;: u&apos;Randolph Tan&apos;, u&apos;email&apos;: u&apos;randolph@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-19694&quot; title=&quot;Distributed lock should retry on duplicate key error creating the lock entry&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-19694&quot;&gt;&lt;del&gt;SERVER-19694&lt;/del&gt;&lt;/a&gt; Distributed lock should retry on duplicate key error creating the lock entry&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/ef17792e8a168917da0d009ff9faeba59552fae6&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/ef17792e8a168917da0d009ff9faeba59552fae6&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="995735" author="xgen-internal-githook" created="Tue, 4 Aug 2015 04:00:26 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;kkmongo&apos;, u&apos;name&apos;: u&apos;Kamran Khan&apos;, u&apos;email&apos;: u&apos;kamran.khan@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-19694&quot; title=&quot;Distributed lock should retry on duplicate key error creating the lock entry&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-19694&quot;&gt;&lt;del&gt;SERVER-19694&lt;/del&gt;&lt;/a&gt; Disable mapReduce FSM workload that triggers dupe key exception&lt;/p&gt;

&lt;p&gt;The workload will be re-enabled when the underlying server bug is fixed.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/3041da9fc2127a3193a769c2a708261700e690bb&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/3041da9fc2127a3193a769c2a708261700e690bb&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="143209">SERVER-14322</issuekey>
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