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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-4399] mongos doesn&apos;t always update shards in response to replica set changes</title>
                <link>https://jira.mongodb.org/browse/SERVER-4399</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;when adding or removing a member from a replica set via a reconfig, mongos does not always update the config.shards collection.  Seems to update on startup, but not on general reconfig.  &lt;br/&gt;
Test case reproduces.  &lt;/p&gt;</description>
                <environment></environment>
        <key id="25783">SERVER-4399</key>
            <summary>mongos doesn&apos;t always update shards in response to replica set changes</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="greg_10gen">Greg Studer</assignee>
                                    <reporter username="greg_10gen">Greg Studer</reporter>
                        <labels>
                    </labels>
                <created>Wed, 30 Nov 2011 23:14:59 +0000</created>
                <updated>Mon, 11 Jul 2016 18:33:36 +0000</updated>
                            <resolved>Mon, 12 Dec 2011 16:06:19 +0000</resolved>
                                    <version>2.0.2</version>
                    <version>2.1.0</version>
                                    <fixVersion>2.0.3</fixVersion>
                    <fixVersion>2.1.0</fixVersion>
                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="84148" author="auto" created="Wed, 1 Feb 2012 19:01:07 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;login&apos;: u&apos;gregstuder&apos;, u&apos;name&apos;: u&apos;Greg Studer&apos;, u&apos;email&apos;: u&apos;greg@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-4399&quot; title=&quot;mongos doesn&amp;#39;t always update shards in response to replica set changes&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-4399&quot;&gt;&lt;del&gt;SERVER-4399&lt;/del&gt;&lt;/a&gt; make replica set updating more reliable in c++ driver, remove nodes when no longer present in config&lt;br/&gt;
Branch: v2.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/6b2231a15c45104c5e8ed292ab4eb5ad3fc94a29&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/6b2231a15c45104c5e8ed292ab4eb5ad3fc94a29&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="71996" author="auto" created="Fri, 9 Dec 2011 16:07:39 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;login&apos;: u&apos;gregstuder&apos;, u&apos;name&apos;: u&apos;Greg Studer&apos;, u&apos;email&apos;: u&apos;greg@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-4399&quot; title=&quot;mongos doesn&amp;#39;t always update shards in response to replica set changes&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-4399&quot;&gt;&lt;del&gt;SERVER-4399&lt;/del&gt;&lt;/a&gt; test case to ensure mongos updates config server with new rs data&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/b064cb5acb35db617250703e5da2cfbb4a939f01&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/b064cb5acb35db617250703e5da2cfbb4a939f01&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="71995" author="auto" created="Fri, 9 Dec 2011 16:07:37 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;login&apos;: u&apos;gregstuder&apos;, u&apos;name&apos;: u&apos;Greg Studer&apos;, u&apos;email&apos;: u&apos;greg@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-4399&quot; title=&quot;mongos doesn&amp;#39;t always update shards in response to replica set changes&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-4399&quot;&gt;&lt;del&gt;SERVER-4399&lt;/del&gt;&lt;/a&gt; make replica set updating more reliable in c++ driver, remove nodes when no longer present in config&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/7450bc147428975b6412635ba7d9262e635316e5&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/7450bc147428975b6412635ba7d9262e635316e5&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="70235" author="greg_10gen" created="Thu, 1 Dec 2011 21:18:30 +0000"  >&lt;p&gt;Don&apos;t think it&apos;s a regression, but do think it&apos;s an oversight - we never update replica sets on node removal (not sure there is a way to remove an old node aside from restarting mongos?)&lt;/p&gt;

&lt;p&gt;Patch is mostly done, can test once buildbot is sane again.  &lt;/p&gt;</comment>
                            <comment id="69973" author="greg_10gen" created="Wed, 30 Nov 2011 23:58:07 +0000"  >&lt;p&gt;Not sure if it&apos;s a regression from 1.8/2.0.1&lt;/p&gt;</comment>
                    </comments>
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            <issuekey id="26247">SERVER-4453</issuekey>
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            <issuekey id="52428">SERVER-7278</issuekey>
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