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        <build-date>13-04-2023</build-date>
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            <title>[SERVER-11905] why chunk by chunk movement in balancer in mongodb as it is slow???why not allow multiple migration at a time??</title>
                <link>https://jira.mongodb.org/browse/SERVER-11905</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description></description>
                <environment></environment>
        <key id="100555">SERVER-11905</key>
            <summary>why chunk by chunk movement in balancer in mongodb as it is slow???why not allow multiple migration at a time??</summary>
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                                    <resolution id="3">Duplicate</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="25ib">isha bansal</reporter>
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                    </labels>
                <created>Sat, 30 Nov 2013 12:30:37 +0000</created>
                <updated>Mon, 16 Dec 2013 03:14:47 +0000</updated>
                            <resolved>Mon, 16 Dec 2013 03:14:47 +0000</resolved>
                                                                                        <votes>0</votes>
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                            <comment id="471000" author="stennie" created="Mon, 16 Dec 2013 03:14:47 +0000"  >&lt;p&gt;Hi Isha,&lt;/p&gt;

&lt;p&gt;There is an existing suggestion &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-4355&quot; title=&quot;Support multiple parallel chunk migrations for the same collection&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-4355&quot;&gt;&lt;del&gt;SERVER-4355&lt;/del&gt;&lt;/a&gt; to allow multiple migrations at once.   Please upvote and watch this issue for updates.&lt;/p&gt;

&lt;p&gt;Thanks,&lt;br/&gt;
Stephen&lt;/p&gt;</comment>
                            <comment id="463724" author="eliot" created="Mon, 2 Dec 2013 02:50:27 +0000"  >&lt;p&gt;Over time we definitely will allow multiple migrations in flight as the same time.&lt;br/&gt;
Its tricky balancing chunk migration performance, with impact of balancing on cluster performance.&lt;br/&gt;
Is your system overloaded and that is why its slow, or is it slow for other reasons?&lt;/p&gt;</comment>
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