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    <title>MongoDB Jira</title>
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    <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-18187] Chunk counld not split when the chunksize greater than specified chunksize</title>
                <link>https://jira.mongodb.org/browse/SERVER-18187</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Here is the situation:&lt;br/&gt;
There is a chunk, has the shard key range [10001, 100030),  but currently, it has only one key (e.g. 10001) has the data, key range from [10002, 10030) is just empty, the chuck data is beyond 8M, then we set the current chuck size to 8M.&lt;br/&gt;
After we fill the data in the key range(10002, 10030),  this chunk starts to split, and stopped at a key range like this [10001, 10003), it has two keys, and we just wonder if this is OK or not. From the document on the official site we thought that the chunk might NOT contains more than ONE key.&lt;br/&gt;
So, would you please help us make sure if this is ok or not ? &lt;br/&gt;
What we want to is to split the chunks as many as possible, so that to make sure the data is balanced.&lt;/p&gt;</description>
                <environment></environment>
        <key id="199788">SERVER-18187</key>
            <summary>Chunk counld not split when the chunksize greater than specified chunksize</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</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="-1">Unassigned</assignee>
                                    <reporter username="lsc">lsc</reporter>
                        <labels>
                            <label>Bug</label>
                            <label>sharding</label>
                    </labels>
                <created>Thu, 23 Apr 2015 10:56:00 +0000</created>
                <updated>Thu, 14 Apr 2016 15:17:54 +0000</updated>
                            <resolved>Thu, 23 Apr 2015 13:20:16 +0000</resolved>
                                    <version>3.0.1</version>
                                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="896897" author="lsc" created="Fri, 24 Apr 2015 01:44:40 +0000"  >&lt;p&gt;I know this , but I think  this is a bug for mongodb .Because when the real chunksize greater than specified , and the chunk contain two shard key . I don&apos;t know why the chunk counld not split , and the official document said that &quot;In some cases, chunks can grow beyond the specified chunk size (page 662) but cannot undergo a split; e.g. if a chunk&lt;br/&gt;
represents a single shard key value.&quot;&lt;/p&gt;</comment>
                            <comment id="896102" author="ramon.fernandez" created="Thu, 23 Apr 2015 13:19:54 +0000"  >&lt;p&gt;Thanks for your report &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=lsc&quot; class=&quot;user-hover&quot; rel=&quot;lsc&quot;&gt;lsc&lt;/a&gt;. Please note that the SERVER project is for reporting bugs or feature suggestions for the MongoDB server. For MongoDB-related support discussion please post on the &lt;a href=&quot;http://groups.google.com/group/mongodb-user&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;mongodb-user group&lt;/a&gt; or &lt;a href=&quot;http://stackoverflow.com/questions/tagged/mongodb&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Stack Overflow with the &lt;tt&gt;mongodb&lt;/tt&gt; tag&lt;/a&gt;, where your question will reach a larger audience. A question like this involving more discussion would be best posted on the &lt;a href=&quot;http://groups.google.com/group/mongodb-user&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;mongodb-user group&lt;/a&gt;.&lt;/p&gt;

&lt;p&gt;Regards,&lt;br/&gt;
Ram&#243;n.&lt;/p&gt;</comment>
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