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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>
    </build-info>


<item>
            <title>[SERVER-9945] Hard coded MaxObjectPerChunk limit</title>
                <link>https://jira.mongodb.org/browse/SERVER-9945</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Hi,&lt;/p&gt;

&lt;p&gt;why ist the MaxObjectPerChunk hard coded in line: &lt;a href=&quot;https://github.com/mongodb/mongo/blob/master/src/mongo/s/chunk.cpp#L54?&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/blob/master/src/mongo/s/chunk.cpp#L54?&lt;/a&gt;&lt;br/&gt;
We want to move a chunk to a other shard, but the move chunk command will be aborted because &quot;chunk too big to move&quot;.&lt;/p&gt;

&lt;p&gt;I found that in line: &lt;a href=&quot;https://github.com/mongodb/mongo/blob/master/src/mongo/s/d_migrate.cpp#L408&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/blob/master/src/mongo/s/d_migrate.cpp#L408&lt;/a&gt; the calculated maxRecsWhenFull will be reseted to the hard coded MaxObjectPerChunk limit if its greater.&lt;/p&gt;

&lt;p&gt;Our configured chunk size is 64mb and the chunk has a size of ~32mb, so it should be moved without problems.&lt;br/&gt;
Why this limit?&lt;/p&gt;

&lt;p&gt;I added to the failed response some values to validate this and here is the output:&lt;/p&gt;
&lt;p/&gt;
&lt;div id=&quot;syntaxplugin&quot; class=&quot;syntaxplugin&quot; style=&quot;border: 1px dashed #bbb; border-radius: 5px !important; overflow: auto; max-height: 30em;&quot;&gt;
&lt;table cellspacing=&quot;0&quot; cellpadding=&quot;0&quot; border=&quot;0&quot; width=&quot;100%&quot; style=&quot;font-size: 1em; line-height: 1.4em !important; font-weight: normal; font-style: normal; color: black;&quot;&gt;
		&lt;tbody &gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;  margin-top: 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;{&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;	&quot;cause&quot; : {&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;		&quot;chunkTooBig&quot; : true,&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;		&quot;estimatedChunkSize&quot; : 34355880,&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;		&quot;recCount&quot; : 477165,&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;		&quot;avgRecSize&quot; : 72,&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;		&quot;maxRecsWhenFull&quot; : 250001,&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;		&quot;maxChunkSize&quot; : 67108864,&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;		&quot;totalRecs&quot; : 47328811,&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;		&quot;Chunk::MaxObjectPerChunk&quot; : 250000,&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;		&quot;ok&quot; : 0,&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;		&quot;errmsg&quot; : &quot;chunk too big to move&quot;&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;	},&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;	&quot;ok&quot; : 0,&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;	&quot;errmsg&quot; : &quot;move failed&quot;&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   margin-bottom: 10px;  width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;}&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
			&lt;/tbody&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;p/&gt;
&lt;p&gt;So a chunk with over 250000 entries can&apos;t be moved? IMHO it&apos;s not expacted or? We think for that reason is our cluster not good distributed. We have many abort logs in the config.changelog.&lt;/p&gt;

&lt;p&gt;Any thoughts?&lt;/p&gt;

&lt;p&gt;Thanks &amp;amp; Regards&lt;br/&gt;
Thomas&lt;/p&gt;</description>
                <environment></environment>
        <key id="79289">SERVER-9945</key>
            <summary>Hard coded MaxObjectPerChunk limit</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="3">Duplicate</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="tecbot">Thomas Adam</reporter>
                        <labels>
                    </labels>
                <created>Mon, 17 Jun 2013 12:30:27 +0000</created>
                <updated>Wed, 10 Dec 2014 23:06:48 +0000</updated>
                            <resolved>Mon, 26 Aug 2013 01:24:48 +0000</resolved>
                                                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>7</watches>
                                                                                                                <comments>
                            <comment id="411128" author="david.hows" created="Mon, 26 Aug 2013 01:24:32 +0000"  >&lt;p&gt;Hi Thomas,&lt;/p&gt;

&lt;p&gt;I&apos;m marking this ticket as resolved as this is now being dealt with on your private ticket.&lt;/p&gt;

&lt;p&gt;The solution to this issue looks to be the changes being made as part of &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-8598&quot; title=&quot;Add command to cleanup orphaned data created by failed chunk migrations&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-8598&quot;&gt;&lt;del&gt;SERVER-8598&lt;/del&gt;&lt;/a&gt; and &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-8869&quot; title=&quot;Command to merge two co-located, adjacent chunks&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-8869&quot;&gt;&lt;del&gt;SERVER-8869&lt;/del&gt;&lt;/a&gt;.&lt;/p&gt;

&lt;p&gt;Regards,&lt;br/&gt;
David&lt;/p&gt;</comment>
                            <comment id="362417" author="jhn" created="Tue, 18 Jun 2013 07:13:39 +0000"  >&lt;p&gt;This sounds quite related to &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-9365&quot; title=&quot;mongod always split at  250000 position&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-9365&quot;&gt;&lt;del&gt;SERVER-9365&lt;/del&gt;&lt;/a&gt;.&lt;/p&gt;

&lt;p&gt;A chunk that is &quot;too big to move&quot; will be &quot;force split&quot; but the bug reported in &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-9365&quot; title=&quot;mongod always split at  250000 position&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-9365&quot;&gt;&lt;del&gt;SERVER-9365&lt;/del&gt;&lt;/a&gt; prevents mongo from split the chunk correctly.&lt;/p&gt;

&lt;p&gt;Same root case as in this one; small document size with respect to max chunk size.&lt;/p&gt;

&lt;p&gt;I posted some comments about this in the discussion on the mailing list &lt;a href=&quot;https://groups.google.com/forum/?fromgroups#!topic/mongodb-user/leyazB-1zec&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://groups.google.com/forum/?fromgroups#!topic/mongodb-user/leyazB-1zec&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="361745" author="tecbot" created="Mon, 17 Jun 2013 13:44:58 +0000"  >&lt;p&gt;Ok, I have created the ticket SUPPORT-608. Thanks&lt;/p&gt;</comment>
                            <comment id="361725" author="scotthernandez" created="Mon, 17 Jun 2013 13:24:19 +0000"  >&lt;p&gt;Yes, please create a Community Private issue (private to the submitter and support), upload the logs there and then we can link them together without exposing your private information here.&lt;/p&gt;</comment>
                            <comment id="361715" author="tecbot" created="Mon, 17 Jun 2013 13:10:05 +0000"  >&lt;p&gt;Short question. Can we make the ticket private about our intern logs? Thanks&lt;/p&gt;</comment>
                            <comment id="361709" author="tecbot" created="Mon, 17 Jun 2013 12:59:05 +0000"  >&lt;p&gt;We use 2.4.4.&lt;/p&gt;

&lt;p&gt;We use a hashed shard key of a MongoID. I run the following command: &lt;p/&gt;
&lt;div id=&quot;syntaxplugin&quot; class=&quot;syntaxplugin&quot; style=&quot;border: 1px dashed #bbb; border-radius: 5px !important; overflow: auto; max-height: 30em;&quot;&gt;
&lt;table cellspacing=&quot;0&quot; cellpadding=&quot;0&quot; border=&quot;0&quot; width=&quot;100%&quot; style=&quot;font-size: 1em; line-height: 1.4em !important; font-weight: normal; font-style: normal; color: black;&quot;&gt;
		&lt;tbody &gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;  margin-top: 10px;   margin-bottom: 10px;  width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;db.runCommand({moveChunk:&quot;lovoo.visits.in&quot;, bounds:[{ &quot;u&quot; : NumberLong(&quot;-8154696824717988795&quot;) }, { &quot;u&quot; : NumberLong(&quot;-8070450532247928776&quot;) }], to: &quot;lovoo3&quot; });&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
			&lt;/tbody&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;p/&gt;&lt;/p&gt;

&lt;p&gt;I can split the given chunk, but this not what I want. I have splitted the chunk bevor, because of the same message and one of the new chunks (the above) has the same problem!&lt;/p&gt;

&lt;p&gt;The logs prints only the same information which the response give me.&lt;br/&gt;
, the primary which should move does not log anything about it.&lt;/p&gt;


&lt;p&gt;Log of mongos:&lt;/p&gt;
&lt;p/&gt;
&lt;div id=&quot;syntaxplugin&quot; class=&quot;syntaxplugin&quot; style=&quot;border: 1px dashed #bbb; border-radius: 5px !important; overflow: auto; max-height: 30em;&quot;&gt;
&lt;table cellspacing=&quot;0&quot; cellpadding=&quot;0&quot; border=&quot;0&quot; width=&quot;100%&quot; style=&quot;font-size: 1em; line-height: 1.4em !important; font-weight: normal; font-style: normal; color: black;&quot;&gt;
		&lt;tbody &gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;  margin-top: 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;Mon Jun 17 14:57:14.564 [conn50] CMD: movechunk: { moveChunk: &quot;lovoo.visits.in&quot;, bounds: [ { u: -8154696824717988795 }, { u: -8070450532247928776 } ], to: &quot;lovoo3&quot; }&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;Mon Jun 17 14:57:14.564 [conn50] moving chunk ns: lovoo.visits.in moving ( ns:lovoo.visits.inshard: lovoo:lovoo/10.2.0.204:27017,10.2.0.205:27017,10.2.0.206:27017lastmod: 66|1||000000000000000000000000min: { u: -8154696824717988795 }max: { u: -8070450532247928776 }) lovoo:lovoo/10.2.0.204:27017,10.2.0.205:27017,10.2.0.206:27017 -&amp;gt; lovoo3:lovoo3/10.2.0.201:27017,10.2.0.202:27017,10.2.0.203:27017&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;Mon Jun 17 14:57:16.855 [LockPinger] cluster 10.2.0.215:27019,10.2.0.216:27019,10.2.0.217:27019 pinged successfully at Mon Jun 17 14:57:16 2013 by distributed lock pinger &apos;10.2.0.215:27019,10.2.0.216:27019,10.2.0.217:27019/dev.lovoo.net:27018:1371466593:1804289383&apos;, sleeping for 30000ms&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   margin-bottom: 10px;  width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;Mon Jun 17 14:57:18.048 [conn50] moveChunk result: { chunkTooBig: true, estimatedChunkSize: 34451208, recCount: 478489, avgRecSize: 72, maxRecsWhenFull: 250001, maxChunkSize: 67108864, totalRecs: 47474227, Chunk::MaxObjectPerChunk: 250000, ok: 0.0, errmsg: &quot;chunk too big to move&quot; }&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
			&lt;/tbody&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;p/&gt;</comment>
                            <comment id="361701" author="scotthernandez" created="Mon, 17 Jun 2013 12:50:08 +0000"  >&lt;p&gt;What version are you using? What is the chunk definition look like which cannot be moved? If it can be split it will try to do so if possible before moving it, did that have an error.&lt;/p&gt;

&lt;p&gt;If you upload the server logs and mongos logs for that time it would be helpful.&lt;/p&gt;</comment>
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