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            <title>[SERVER-3230] Can capped collection auto increase size and sharding</title>
                <link>https://jira.mongodb.org/browse/SERVER-3230</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Does capped collection can auto increase size and sharding?&lt;br/&gt;
My collection may increase very fast, so i can&apos;t exactly know how much size should be prealloced. And my collection&apos;s operation(write and read) are very frequent, one server can&apos;t handle it.&lt;br/&gt;
Does there some way to implement auto increase and sharding?&lt;/p&gt;

&lt;p&gt;Thanks!&lt;/p&gt;</description>
                <environment></environment>
        <key id="18075">SERVER-3230</key>
            <summary>Can capped collection auto increase size and sharding</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="3">Duplicate</resolution>
                                        <assignee username="scotthernandez">Scott Hernandez</assignee>
                                    <reporter username="eleven">eleven huang</reporter>
                        <labels>
                            <label>auto_increase</label>
                            <label>capped_collection</label>
                            <label>sharding</label>
                    </labels>
                <created>Thu, 9 Jun 2011 16:53:23 +0000</created>
                <updated>Mon, 29 Aug 2011 15:56:40 +0000</updated>
                            <resolved>Fri, 10 Jun 2011 14:01:44 +0000</resolved>
                                                                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="37168" author="eleven" created="Sun, 12 Jun 2011 15:09:48 +0000"  >&lt;p&gt;Thanks for your answer.&lt;/p&gt;</comment>
                            <comment id="36996" author="scotthernandez" created="Fri, 10 Jun 2011 14:01:45 +0000"  >&lt;p&gt;I have linked to the existing issues for both things you have asked for. &lt;/p&gt;

&lt;p&gt;If you need more write throughput you can either add more disks (to the single server) or add more machines (w/sharding, for example). You cannot shard a capped collection yet. But you can create multiple capped collections on different shards to increase write throughput; however, you must then run multiple queries to access all your data.&lt;/p&gt;</comment>
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