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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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            <title>[SERVER-12686] Can Mongos route to different hosts by collections?</title>
                <link>https://jira.mongodb.org/browse/SERVER-12686</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Given that we have 2 mongoDB hosts, for example host A and B, then their own DB and collections. our application server. has only 1 mongos, is there any way to route to different host if we want to access different collection. we are using ruby implementation, each collection is under ORM controll.&lt;/p&gt;</description>
                <environment></environment>
        <key id="110472">SERVER-12686</key>
            <summary>Can Mongos route to different hosts by collections?</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>
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                                    <resolution id="9">Done</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="larry.loi">larry.loi</reporter>
                        <labels>
                    </labels>
                <created>Wed, 12 Feb 2014 02:54:52 +0000</created>
                <updated>Wed, 12 Feb 2014 12:02:46 +0000</updated>
                            <resolved>Wed, 12 Feb 2014 12:02:46 +0000</resolved>
                                                                    <component>Admin</component>
                    <component>Networking</component>
                                        <votes>0</votes>
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                                                                                                                <comments>
                            <comment id="497718" author="scotthernandez" created="Wed, 12 Feb 2014 12:02:46 +0000"  >&lt;p&gt;These types of questions are best asked on the community forum (&lt;a href=&quot;https://groups.google.com/group/mongodb-user&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://groups.google.com/group/mongodb-user&lt;/a&gt;) and not in jira (which is used to file bugs, feature requests, and other code-related changes for the core server). There are already many answers and discussions there which you might find very useful and informative.&lt;/p&gt;</comment>
                            <comment id="497685" author="exi" created="Wed, 12 Feb 2014 10:14:23 +0000"  >&lt;p&gt;I am not quite sure what the problem is here.&lt;br/&gt;
Mongodb shards are already defined on a per-collection basis, meaning that it is easily possible to assign collection 1 to shard A and collection 2 to shard B and the mongos router will route them accordingly.&lt;/p&gt;

&lt;p&gt;Take a look at the mongodb sharding tutorials, they explain it quite well.&lt;br/&gt;
&lt;a href=&quot;http://docs.mongodb.org/manual/core/sharded-cluster-shards/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;MongoDB Shards&lt;/a&gt;&lt;/p&gt;</comment>
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