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    <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-1767] Chunk balancing does not resume after a temporary network outage of a config server</title>
                <link>https://jira.mongodb.org/browse/SERVER-1767</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;1. Set up one replica set (2 servers)&lt;br/&gt;
2. Add enough data to it in one collection so it will be split into at least 8 chunks when sharded later.&lt;br/&gt;
3. Set up 3 sharding config servers&lt;br/&gt;
4. Start one mongos pointing to above config servers&lt;br/&gt;
5. Add above replica set as sole shard&lt;br/&gt;
6. Set up another replica set (2 servers)&lt;br/&gt;
7. Add second replica set as second shard&lt;br/&gt;
8. Enable sharding on above db and collection.&lt;br/&gt;
9. Wait until the balancer moves the first chunk to the second shard, then cut one config server from the network (using iptables, drop packets to/from it).&lt;br/&gt;
10. Wait at least one minute.&lt;br/&gt;
11. Reconnect config server to network (using iptables, allow packets to/from it).&lt;/p&gt;

&lt;p&gt;Problem: No more chunks will move to the second shard, even if you add more data.&lt;/p&gt;

</description>
                <environment>db version v1.7.1-pre-, pdfile version 4.5&lt;br/&gt;
Thu Sep  9 15:50:22 git version: 10f750fa617e7499a89e9a140d89ddb4a7427ad6</environment>
        <key id="13058">SERVER-1767</key>
            <summary>Chunk balancing does not resume after a temporary network outage of a config server</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="3">Duplicate</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="tonyh">Tony Hannan</reporter>
                        <labels>
                    </labels>
                <created>Thu, 9 Sep 2010 19:51:01 +0000</created>
                <updated>Tue, 29 May 2012 14:53:35 +0000</updated>
                            <resolved>Wed, 11 May 2011 15:47:34 +0000</resolved>
                                    <version>1.7.0</version>
                                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="32112" author="greg_10gen" created="Wed, 11 May 2011 15:47:34 +0000"  >&lt;p&gt;Pretty sure this is a duplicate of &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-3024&quot; title=&quot;distributed lock will not unlock self&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-3024&quot;&gt;&lt;del&gt;SERVER-3024&lt;/del&gt;&lt;/a&gt; - unlocking should retry now.&lt;/p&gt;</comment>
                            <comment id="20445" author="eliot" created="Thu, 18 Nov 2010 20:48:41 +0000"  >&lt;p&gt;we don&apos;t have a good reproducible case for it, so unclear yet&lt;/p&gt;</comment>
                            <comment id="20444" author="bwaldvogel" created="Thu, 18 Nov 2010 20:34:43 +0000"  >&lt;p&gt;does this also happen on 1.6.3? Do you have a workaround? (restarting all config servers?)&lt;/p&gt;</comment>
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