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    <language>en-us</language>    <build-info>
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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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            <title>[SERVER-11316] mongos feature/bug?</title>
                <link>https://jira.mongodb.org/browse/SERVER-11316</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Hi there,&lt;/p&gt;

&lt;p&gt;We are deploying a potentially very large mongo based infrastructure. I recentlky had casue to move from one server supplier to another. Luckily I was using host names. In one area we have 3 mongos units working over a sharded cluster.&lt;/p&gt;

&lt;p&gt;What I found strange was that to move the mongos units we had to copy the actual data files over, which we did successfully with zero downtime btw. However, surely the mongos units should be treated as a simple replica set? Tis way we could start up new units, make them a part of teh repl set, and then close down teh old ones.. as you would with a normoal mongod replica set?&lt;/p&gt;

&lt;p&gt;Just a thought&lt;/p&gt;

&lt;p&gt;Peter Colclough&lt;br/&gt;
peter@madbits.com &lt;/p&gt;

&lt;p&gt;&lt;b&gt;Reporter&lt;/b&gt;: Peter Colclough&lt;br/&gt;
&lt;b&gt;E-mail&lt;/b&gt;: &lt;span class=&quot;nobr&quot;&gt;&lt;a href=&quot;mailto:peter@madbits.com&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;peter@madbits.com&lt;sup&gt;&lt;img class=&quot;rendericon&quot; src=&quot;https://jira.mongodb.org/images/icons/mail_small.gif&quot; height=&quot;12&quot; width=&quot;13&quot; align=&quot;absmiddle&quot; alt=&quot;&quot; border=&quot;0&quot;/&gt;&lt;/sup&gt;&lt;/a&gt;&lt;/span&gt;&lt;/p&gt;</description>
                <environment>Ubuntu 12.04 (30+ servers)&lt;br/&gt;
&lt;br/&gt;
*Location*: &lt;a href=&quot;http://docs.mongodb.org/manual/reference/program/mongos.exe/&quot;&gt;http://docs.mongodb.org/manual/reference/program/mongos.exe/&lt;/a&gt;&lt;br/&gt;
*User-Agent*: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/27.0.1453.110 Safari/537.36&lt;br/&gt;
*Referrer*: &lt;a href=&quot;http://docs.mongodb.org/manual/search/?query=mongos&quot;&gt;http://docs.mongodb.org/manual/search/?query=mongos&lt;/a&gt;&lt;br/&gt;
*Screen Resolution*: 1680 x 1050&lt;br/&gt;
*repo*: docs&lt;br/&gt;
*source*: reference/program/mongos.exe&lt;br/&gt;
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        <key id="95205">SERVER-11316</key>
            <summary>mongos feature/bug?</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</type>
                                                <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="barrie">Barrie Segal</assignee>
                                    <reporter username="auto">auto</reporter>
                        <labels>
                            <label>collector-298ba4e7</label>
                    </labels>
                <created>Tue, 22 Oct 2013 09:45:56 +0000</created>
                <updated>Wed, 10 Dec 2014 23:06:35 +0000</updated>
                            <resolved>Wed, 23 Oct 2013 02:55:03 +0000</resolved>
                                                                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="445049" author="eliot" created="Wed, 23 Oct 2013 02:55:03 +0000"  >&lt;p&gt;There are some requirements for managing meta data for which a replica set adds unique challenges.&lt;br/&gt;
There is an open ticket to discuss, so consolidating to &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-1448&quot; title=&quot;Host sharding config data on a replica set&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-1448&quot;&gt;&lt;del&gt;SERVER-1448&lt;/del&gt;&lt;/a&gt;&lt;/p&gt;</comment>
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