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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-26013] Add means to the DistLockManager to restore locks during draining mode</title>
                <link>https://jira.mongodb.org/browse/SERVER-26013</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;As part of the balancer state recovery after stepdown we need to be able to re-acquire the collection distributed locks held by the previous balancer session. This must be done while replication is still in draining mode in order to avoid a race condition where a mongos steals them before the recovery manages to run.&lt;/p&gt;

&lt;p&gt;Since majority writes are not allowed while in draining mode, this lock re-acquisition must be done with local write concern.&lt;/p&gt;

&lt;p&gt;This ticket is to add a method on the DistLockManager, which would allow such mode of lock acquisition.&lt;/p&gt;

&lt;p&gt;Furthermore, because the only owner of the locks being restored can be the balancer, which cleans all its locks before recovery begins, this method does not need to do any lock overtaking.&lt;/p&gt;</description>
                <environment></environment>
        <key id="314785">SERVER-26013</key>
            <summary>Add means to the DistLockManager to restore locks during draining mode</summary>
                <type id="3" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14718&amp;avatarType=issuetype">Task</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="kaloian.manassiev@mongodb.com">Kaloian Manassiev</reporter>
                        <labels>
                    </labels>
                <created>Wed, 7 Sep 2016 21:10:01 +0000</created>
                <updated>Sat, 19 Nov 2016 00:04:58 +0000</updated>
                            <resolved>Thu, 8 Sep 2016 16:00:46 +0000</resolved>
                                                    <fixVersion>3.3.14</fixVersion>
                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="1384958" author="xgen-internal-githook" created="Thu, 15 Sep 2016 02:26:09 +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-26013&quot; title=&quot;Add means to the DistLockManager to restore locks during draining mode&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-26013&quot;&gt;&lt;del&gt;SERVER-26013&lt;/del&gt;&lt;/a&gt; Remove default arguments from DistLockManager&lt;/p&gt;

&lt;p&gt;In addition, restores the default values for merge and split chunk, which&lt;br/&gt;
were broken as part of commit c62a0d7c882e99d3b255e26ade7baaa0d18244cb.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/9e82c37fe2430940b2184ca3a44eddc6c61f4db0&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/9e82c37fe2430940b2184ca3a44eddc6c61f4db0&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1384957" author="xgen-internal-githook" created="Thu, 15 Sep 2016 02:26:08 +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-26013&quot; title=&quot;Add means to the DistLockManager to restore locks during draining mode&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-26013&quot;&gt;&lt;del&gt;SERVER-26013&lt;/del&gt;&lt;/a&gt; Remove &apos;lockTryInterval&apos; parameter from the DistLockManager&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/6590602de70550a7fa0a63b138499d08976a3722&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/6590602de70550a7fa0a63b138499d08976a3722&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1379815" author="xgen-internal-githook" created="Thu, 8 Sep 2016 18:12:24 +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-26013&quot; title=&quot;Add means to the DistLockManager to restore locks during draining mode&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-26013&quot;&gt;&lt;del&gt;SERVER-26013&lt;/del&gt;&lt;/a&gt; Add a missing library dependency&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/59b09a401f9df637a7fcf77e34fd1a5125c54bfc&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/59b09a401f9df637a7fcf77e34fd1a5125c54bfc&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1379617" author="xgen-internal-githook" created="Thu, 8 Sep 2016 15:59:46 +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-26013&quot; title=&quot;Add means to the DistLockManager to restore locks during draining mode&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-26013&quot;&gt;&lt;del&gt;SERVER-26013&lt;/del&gt;&lt;/a&gt; Add a tryLock method to the dist lock manager&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/6c2169cc938d4ef1797782be934e6ce7c97fc21a&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/6c2169cc938d4ef1797782be934e6ce7c97fc21a&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1379616" author="xgen-internal-githook" created="Thu, 8 Sep 2016 15:59:45 +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-26013&quot; title=&quot;Add means to the DistLockManager to restore locks during draining mode&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-26013&quot;&gt;&lt;del&gt;SERVER-26013&lt;/del&gt;&lt;/a&gt; Remove ShardingCatalogClient::distLock and cleanup DistLockManager&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/c62a0d7c882e99d3b255e26ade7baaa0d18244cb&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/c62a0d7c882e99d3b255e26ade7baaa0d18244cb&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="313166">SERVER-25905</issuekey>
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