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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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            <title>[SERVER-5432] Changing the config database</title>
                <link>https://jira.mongodb.org/browse/SERVER-5432</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;History&lt;br/&gt;
Our production shard network  was running 7 shards and 7 routers(it was silly to have 7, but it was a mistake) and 3 config servers.Main Router were running of file descriptors and then it was shutdown and limit was increased.But the database couldnt get lock and so database was repaired and started.After this one of the config servers was holding lot of data in the moveChunk folder and has exhausted all the space and processes were unresponsive. I dont know why it was holding all the data in the moveChunk folder- a mystery for me. Once the whole shard network was restarted, many data writes were complaining of stale config, and subsequently were retrying and then exhausting all the file descriptors and then Router became totally unresponsive and was throwing socket exceptions.An idea to run the shard on one config server rather than 3 config servers was considered and tested in staging environment and applied to prod sharding network.Now I saw stale config warning and then unable to transfer data errors and then finally out of file descriptors error. I am running 2.0.1 Do you think any of these problems would go away if I upgrade it to 2.1.0 or would I be in worse condition? Any idea why all these errors are happening?&lt;/p&gt;</description>
                <environment>linux</environment>
        <key id="34915">SERVER-5432</key>
            <summary>Changing the config database</summary>
                <type id="6" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14720&amp;avatarType=issuetype">Question</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="preethamraj">Preetham Derangula</reporter>
                        <labels>
                    </labels>
                <created>Wed, 28 Mar 2012 21:57:43 +0000</created>
                <updated>Fri, 30 Mar 2012 04:17:54 +0000</updated>
                            <resolved>Fri, 30 Mar 2012 04:17:54 +0000</resolved>
                                    <version>2.0.1</version>
                                                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="105059" author="eliot" created="Fri, 30 Mar 2012 04:17:54 +0000"  >&lt;p&gt;looks like you opened 2 cases with the same description?&lt;br/&gt;
please try and not do that&lt;br/&gt;
&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-5433&quot; title=&quot;Stale config and unable to move chunks&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-5433&quot;&gt;&lt;del&gt;SERVER-5433&lt;/del&gt;&lt;/a&gt;&lt;/p&gt;</comment>
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