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    <title>MongoDB Jira</title>
    <link>https://jira.mongodb.org</link>
    <description>This file is an XML representation of an issue</description>
    <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-2271] Increase initial sharding limit to 256gb </title>
                <link>https://jira.mongodb.org/browse/SERVER-2271</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;There&apos;s an arbitrary limit on the size of a pre-existing collection that we&apos;re split into chunks.  Alberto tells me this limit should be revisited, could possibly be removed altogether.  Mostly just creating this issue to allow watchers to track progress.&lt;/p&gt;</description>
                <environment></environment>
        <key id="14052">SERVER-2271</key>
            <summary>Increase initial sharding limit to 256gb </summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</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="9">Done</resolution>
                                        <assignee username="kristina">Kristina Chodorow</assignee>
                                    <reporter username="richard.kreuter">Richard Kreuter</reporter>
                        <labels>
                    </labels>
                <created>Wed, 22 Dec 2010 15:01:04 +0000</created>
                <updated>Tue, 12 Jul 2016 00:19:29 +0000</updated>
                            <resolved>Sun, 20 Feb 2011 05:05:05 +0000</resolved>
                                                    <fixVersion>1.8.0-rc0</fixVersion>
                                    <component>Sharding</component>
                                        <votes>1</votes>
                                    <watches>6</watches>
                                                                                                                <comments>
                            <comment id="293199" author="asya" created="Tue, 19 Mar 2013 18:19:09 +0000"  >&lt;p&gt;The code shows 512GB limit for 64MB default chunk size (max split points 8192) but the docs say 256GB still, opened &lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-1265&quot; title=&quot;Maximum collection size to shard is 512GB not 256GB&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-1265&quot;&gt;&lt;del&gt;DOCS-1265&lt;/del&gt;&lt;/a&gt; to fix.&lt;/p&gt;</comment>
                            <comment id="183128" author="kristina" created="Tue, 6 Nov 2012 18:04:30 +0000"  >&lt;p&gt;Just the data size.&lt;/p&gt;</comment>
                            <comment id="182902" author="colinhowe" created="Tue, 6 Nov 2012 08:42:23 +0000"  >&lt;p&gt;Is this a limit on the data size or the combined data/index size?&lt;/p&gt;</comment>
                            <comment id="24356" author="eliot" created="Mon, 21 Feb 2011 03:27:07 +0000"  >&lt;p&gt;@andrew, its on this page: &lt;a href=&quot;http://www.mongodb.org/display/DOCS/Sharding+Limits&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;http://www.mongodb.org/display/DOCS/Sharding+Limits&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="24354" author="plasma" created="Mon, 21 Feb 2011 01:23:09 +0000"  >&lt;p&gt;I noticed on &lt;a href=&quot;http://www.mongodb.org/display/DOCS/Sharding+FAQ&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;http://www.mongodb.org/display/DOCS/Sharding+FAQ&lt;/a&gt; that there is no mention of the limits to being able to go from an unsharded-&amp;gt;sharded collection.&lt;/p&gt;

&lt;p&gt;Having read the docs a while ago I would have thought I was safe being unsharded until my data size grew too big; but if there is a limit to where I can transition to a sharded collection that may be worth noting in the docs?&lt;/p&gt;

&lt;p&gt;Cheers&lt;/p&gt;</comment>
                            <comment id="24331" author="eliot" created="Sun, 20 Feb 2011 17:21:42 +0000"  >&lt;p&gt;Note, one way around the limit is increasing chunk size temporarily.&lt;/p&gt;</comment>
                            <comment id="24261" author="auto" created="Fri, 18 Feb 2011 21:39:13 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;login&apos;: u&apos;kchodorow&apos;, u&apos;name&apos;: u&apos;Kristina Chodorow&apos;, u&apos;email&apos;: u&apos;kristina@10gen.com&apos;}
&lt;p&gt;Message: increase number of initial chunk splits allowed to fit 256GB of data &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-2271&quot; title=&quot;Increase initial sharding limit to 256gb &quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-2271&quot;&gt;&lt;del&gt;SERVER-2271&lt;/del&gt;&lt;/a&gt;&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/a9e3511eda147d42f79203ad6e181e789c632c49&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/a9e3511eda147d42f79203ad6e181e789c632c49&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="24225" author="eliot" created="Fri, 18 Feb 2011 15:14:54 +0000"  >&lt;p&gt;Try making it 16x larger, and spin up a collection with 200gb, the shard and see what happens.&lt;br/&gt;
If all looks good, go ahead and commit&lt;/p&gt;</comment>
                            <comment id="24222" author="kristina" created="Fri, 18 Feb 2011 15:07:08 +0000"  >&lt;p&gt;The constant should be upped for 1.8.0.  It&apos;s ridiculously low (you can&apos;t chunk a collection larger than 16GBs) and shardCollection will look through the entire index regardless, which is a huge waste of resources.&lt;/p&gt;</comment>
                    </comments>
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                                            <outwardlinks description="related to">
                                        <issuelink>
            <issuekey id="14823">SERVER-2596</issuekey>
        </issuelink>
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                                        <issuelink>
            <issuekey id="69004">DOCS-1265</issuekey>
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