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<channel>
    <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-5144] increased memory usage, crashes when upgrading from 1.8.1 to 2.0.3</title>
                <link>https://jira.mongodb.org/browse/SERVER-5144</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;We just had failed upgrades on two of our mongodb replica set clusters.&lt;/p&gt;

&lt;p&gt;Both are setup as such.&lt;br/&gt;
1 arbiter, 2 replicaset members.&lt;/p&gt;

&lt;p&gt;virtual/mapped memory went from 3-7GB, to immediate 34GB one one replica set, and 16GB on another. Both sets of boxes have 4GB memory and 8GB swap&lt;/p&gt;

&lt;p&gt;on version 1.8.1, same data, with active traffic.&lt;/p&gt;

&lt;p&gt; 18180 root       4  45    0 3522M 1999M cpu/13   4:02  6.25% mongod&lt;/p&gt;

&lt;p&gt;on version 2.0.3, same data, same node, with active traffic&lt;/p&gt;

&lt;p&gt;   PID USERNAME LWP PRI NICE  SIZE   RES STATE    TIME    CPU COMMAND&lt;br/&gt;
 11752 root      92  59    0   34G  1883M cpu/11   13:19  7.25% mongod&lt;/p&gt;


&lt;p&gt;all are running under solaris zones ( joyent ), but are just regular joyent slices.&lt;/p&gt;


&lt;p&gt;after about 30 minutes of traffic, mongod&apos;s would crash. and replica fail over would continue, back and forth. We were upgrading to 2.0.3 to try to address the constant fail over issue. Performance is fine, so that&apos;s why we&apos;ve kept the boxes at 4GB, our active data set is low. ( on disk data is about 10GB on both).&lt;/p&gt;

&lt;p&gt;this is in 64bit &lt;/p&gt;
</description>
                <environment></environment>
        <key id="31856">SERVER-5144</key>
            <summary>increased memory usage, crashes when upgrading from 1.8.1 to 2.0.3</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="4">Incomplete</resolution>
                                        <assignee username="mathias@mongodb.com">Mathias Stearn</assignee>
                                    <reporter username="jfrias">Javier Frias</reporter>
                        <labels>
                    </labels>
                <created>Wed, 29 Feb 2012 19:33:42 +0000</created>
                <updated>Wed, 15 Aug 2012 14:24:08 +0000</updated>
                            <resolved>Fri, 13 Jul 2012 15:47:45 +0000</resolved>
                                                                                        <votes>0</votes>
                                    <watches>6</watches>
                                                                                                                <comments>
                            <comment id="142784" author="ian@10gen.com" created="Fri, 13 Jul 2012 15:47:45 +0000"  >&lt;p&gt;@javier I&apos;m closing this now, but please reopen if you can attach further logs or provide any further info from the sun debugger.&lt;/p&gt;</comment>
                            <comment id="94826" author="dwight_10gen" created="Sat, 3 Mar 2012 00:14:12 +0000"  >&lt;p&gt;can you post the end of a log with a little more detail.  if there is more.  i see the &apos; terminate() called, printing stack:&apos; above but nothing else.  so wondering what is up.&lt;/p&gt;

&lt;p&gt;this is almost surely sun specific.  we will fix but could take a little time without more detail.&lt;/p&gt;


&lt;p&gt;running in the sun debugger would be interesting, or chatting with joyent support too.&lt;/p&gt;</comment>
                            <comment id="94677" author="jfrias" created="Fri, 2 Mar 2012 16:57:45 +0000"  >&lt;p&gt;also, a few of the crashes, this has been the text preceding the &quot;starting mongo.&lt;/p&gt;


&lt;p&gt;&amp;#8211;&lt;br/&gt;
Wed Feb 29 18:50:43 &lt;span class=&quot;error&quot;&gt;&amp;#91;conn138&amp;#93;&lt;/span&gt; end connection 10.200.14.56:56842&lt;br/&gt;
Wed Feb 29 18:50:43 &lt;span class=&quot;error&quot;&gt;&amp;#91;conn180&amp;#93;&lt;/span&gt; end connection 10.200.14.67:61303&lt;br/&gt;
Logstream::get called in uninitialized state&lt;br/&gt;
Wed Feb 29 18:50:43 &lt;span class=&quot;error&quot;&gt;&amp;#91;conn199&amp;#93;&lt;/span&gt; end connection 10.200.14.67:56790&lt;br/&gt;
Wed Feb 29 18:51:18 &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; MongoDB starting : pid=29869 port=27017 dbpath=/data/db 64-bit &lt;br/&gt;
&amp;#8211;&lt;br/&gt;
Wed Feb 29 18:55:31 &lt;span class=&quot;error&quot;&gt;&amp;#91;conn176&amp;#93;&lt;/span&gt; end connection 10.200.14.58:41561&lt;br/&gt;
Wed Feb 29 18:55:31 &lt;span class=&quot;error&quot;&gt;&amp;#91;conn260&amp;#93;&lt;/span&gt; end connection 10.200.14.67:48064&lt;br/&gt;
Wed Feb 29 18:55:31 terminate() called, printing stack:&lt;br/&gt;
Wed Feb 29 18:55:31 terminate() called, printing stack:&lt;br/&gt;
Wed Feb 29 18:55:36 &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; MongoDB starting : pid=7661 port=27017 dbpath=/data/db 64-bit &lt;br/&gt;
&amp;#8211;&lt;br/&gt;
Wed Feb 29 18:58:42 &lt;span class=&quot;error&quot;&gt;&amp;#91;conn36&amp;#93;&lt;/span&gt; end connection 10.200.14.65:38252&lt;br/&gt;
Wed Feb 29 18:58:42 &lt;span class=&quot;error&quot;&gt;&amp;#91;conn38&amp;#93;&lt;/span&gt; end connection 10.200.14.49:57457&lt;br/&gt;
Wed Feb 29 18:58:42 terminate() called, printing stack:&lt;br/&gt;
Wed Feb 29 18:58:42 terminate() called, printing stack:&lt;br/&gt;
Wed Feb 29 19:00:52 &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; MongoDB starting : pid=15572 port=27017 dbpath=/data/db 64-bit &lt;/p&gt;</comment>
                            <comment id="94671" author="jfrias" created="Fri, 2 Mar 2012 16:54:10 +0000"  >
&lt;p&gt;we&apos;ve added an extra 4GB to the solaris zone running this instance, and the problem still persists. We are also going to change our front end, so that these very large queries don&apos;t happen any more, and see if that stops the crashes. &lt;/p&gt;
</comment>
                            <comment id="94667" author="jfrias" created="Fri, 2 Mar 2012 16:49:39 +0000"  >&lt;p&gt;It doesnt seem to log the crash. Basically, the scenario is mongodb gets a series of very large result queries, and it exits/crashes. Here&apos;s the log from svc( solaris process watcher ) for that time.&lt;/p&gt;

&lt;p&gt;I cut away the query right before the &quot;MongoDB starting&quot; as its pretty large, but can send you a gzipped version of the log with everything if you&apos;d like ( its going to be a few hundred megs ).&lt;/p&gt;


&lt;p&gt;Just to give you an idea of how often it happens, heres the last two days ( there&apos;s a slight discrepancy, since some the times there was manual intervention ).&lt;/p&gt;

&lt;p&gt;&amp;gt;grep &quot;MongoDB starting&quot; mongo.log | gegrep -B 1 &apos;(Mar| Feb 29)&apos;&lt;br/&gt;
Wed Feb 29 11:41:00 &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; MongoDB starting : pid=21220 port=27017 dbpath=/data/db 64-bit&lt;br/&gt;
Wed Feb 29 16:22:23 &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; MongoDB starting : pid=19671 port=27017 dbpath=/data/db 64-bit&lt;br/&gt;
Wed Feb 29 16:36:31 &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; MongoDB starting : pid=1291 port=27017 dbpath=/data/db 64-bit&lt;br/&gt;
Wed Feb 29 16:54:43 &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; MongoDB starting : pid=15145 port=27017 dbpath=/data/db 64-bit&lt;br/&gt;
Wed Feb 29 18:10:30 &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; MongoDB starting : pid=29792 port=27017 dbpath=/data/db 64-bit&lt;br/&gt;
Wed Feb 29 18:24:41 &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; MongoDB starting : pid=28079 port=27017 dbpath=/data/db 64-bit&lt;br/&gt;
Wed Feb 29 18:32:16 &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; MongoDB starting : pid=21862 port=27017 dbpath=/data/db 64-bit &lt;br/&gt;
Wed Feb 29 18:51:18 &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; MongoDB starting : pid=29869 port=27017 dbpath=/data/db 64-bit &lt;br/&gt;
Wed Feb 29 18:55:36 &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; MongoDB starting : pid=7661 port=27017 dbpath=/data/db 64-bit &lt;br/&gt;
Wed Feb 29 19:00:52 &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; MongoDB starting : pid=15572 port=27017 dbpath=/data/db 64-bit &lt;br/&gt;
Thu Mar  1 04:01:13 &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; MongoDB starting : pid=7179 port=27017 dbpath=/data/db 64-bit &lt;br/&gt;
Thu Mar  1 12:41:19 &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; MongoDB starting : pid=14215 port=27017 dbpath=/data/db 64-bit &lt;br/&gt;
Thu Mar  1 13:31:27 &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; MongoDB starting : pid=23957 port=27017 dbpath=/data/db 64-bit &lt;br/&gt;
Fri Mar  2 00:45:13 &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; MongoDB starting : pid=1822 port=27017 dbpath=/data/db 64-bit &lt;br/&gt;
Fri Mar  2 13:01:37 &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; MongoDB starting : pid=25902 port=27017 dbpath=/data/db 64-bit &lt;br/&gt;
Fri Mar  2 14:58:08 &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; MongoDB starting : pid=16651 port=27017 dbpath=/data/db 64-bit &lt;br/&gt;
Fri Mar  2 16:18:34 &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; MongoDB starting : pid=20096 port=27017 dbpath=/data/db 64-bit &lt;/p&gt;



&lt;p&gt;&amp;gt;grep &quot;Stopping because all processes in service exited&quot; /var/svc/log/&lt;b&gt;mongo&lt;/b&gt; | egrep &apos;(Mar| Feb 29)&apos; &lt;br/&gt;
[ Feb 29 03:46:54 Stopping because all processes in service exited. ]&lt;br/&gt;
[ Feb 29 16:22:18 Stopping because all processes in service exited. ]&lt;br/&gt;
[ Feb 29 16:36:26 Stopping because all processes in service exited. ]&lt;br/&gt;
[ Feb 29 16:54:37 Stopping because all processes in service exited. ]&lt;br/&gt;
[ Feb 29 18:10:25 Stopping because all processes in service exited. ]&lt;br/&gt;
[ Feb 29 18:24:36 Stopping because all processes in service exited. ]&lt;br/&gt;
[ Feb 29 18:32:11 Stopping because all processes in service exited. ]&lt;br/&gt;
[ Mar  1 04:01:08 Stopping because all processes in service exited. ]&lt;br/&gt;
[ Mar  1 12:41:14 Stopping because all processes in service exited. ]&lt;br/&gt;
[ Mar  1 13:31:22 Stopping because all processes in service exited. ]&lt;br/&gt;
[ Mar  2 00:45:08 Stopping because all processes in service exited. ]&lt;br/&gt;
[ Mar  2 13:01:32 Stopping because all processes in service exited. ]&lt;br/&gt;
[ Mar  2 14:58:03 Stopping because all processes in service exited. ]&lt;br/&gt;
[ Mar  2 16:18:28 Stopping because all processes in service exited. ]&lt;/p&gt;


&lt;p&gt;Just so you see one of the long queries that crash it.&lt;/p&gt;


&lt;p&gt;&amp;gt;ggrep -B 1 &quot;MongoDB starting&quot; mongo.log | gegrep -B 1 &apos;(Mar| Feb 29)&apos; | tail -2&lt;/p&gt;


&lt;p&gt;Fri Mar  2 16:18:28 &lt;span class=&quot;error&quot;&gt;&amp;#91;conn128&amp;#93;&lt;/span&gt; getmore inventory.inventory cid:59281348262697 getMore: { bookingdate: &lt;/p&gt;
{ $gte: 20120302, $lt: 20120401 }
&lt;p&gt;, orderModification: 0, price: &lt;/p&gt;
{ $gt: 0 }
&lt;p&gt;, propertyId: &lt;/p&gt;
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&lt;p&gt; }  bytes:4194692 nreturned:6446 184ms&lt;br/&gt;
Fri Mar  2 16:18:34 &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; MongoDB starting : pid=20096 port=27017 dbpath=/data/db 64-bit &lt;/p&gt;
</comment>
                            <comment id="94467" author="eliot" created="Fri, 2 Mar 2012 02:38:37 +0000"  >&lt;p&gt;Is there something else missing from the logs?&lt;br/&gt;
Can you the entire log?&lt;br/&gt;
Not seeing a crash in there.&lt;/p&gt;</comment>
                            <comment id="94250" author="jfrias" created="Thu, 1 Mar 2012 18:39:13 +0000"  >&lt;p&gt;Would there be any way to troubleshoot the constant mongo crashes and failovers? The problem, while always there, was greatly exacerbate when we tried the upgrade.&lt;/p&gt;

&lt;p&gt;This is the log as the crash happens...&lt;br/&gt;
Thu Mar  1 13:31:19 &lt;span class=&quot;error&quot;&gt;&amp;#91;conn293&amp;#93;&lt;/span&gt; getmore XXXXX getMore:&lt;br/&gt;
....&lt;br/&gt;
} }  bytes:4194411 nreturned:6412 107ms&lt;br/&gt;
Thu Mar  1 13:31:27 &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; MongoDB starting : pid=23957 port=27017 dbpath=/data/db 64-bit &lt;br/&gt;
Thu Mar  1 13:31:27 &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; db version v1.8.1, pdfile version 4.5&lt;br/&gt;
Thu Mar  1 13:31:27 &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; git version: a429cd4f535b2499cc4130b06ff7c26f41c00f04&lt;br/&gt;
Thu Mar  1 13:31:27 &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; build sys info: SunOS fhm8e4dc.joyent.us 5.11 snv_89 i86pc BOOST_LIB_VERSION=1_38&lt;br/&gt;
Thu Mar  1 13:31:27 &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; waiting for connections on port 27017&lt;br/&gt;
Thu Mar  1 13:31:27 &lt;span class=&quot;error&quot;&gt;&amp;#91;websvr&amp;#93;&lt;/span&gt; web admin interface listening on port 28017&lt;br/&gt;
Thu Mar  1 13:31:27 &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; connection accepted from...&lt;/p&gt;

&lt;p&gt;The process, as you can see, just crashes when it gets a series of very large result queries.&lt;/p&gt;</comment>
                            <comment id="94044" author="eliot" created="Thu, 1 Mar 2012 05:10:22 +0000"  >&lt;p&gt;2.0 has journalling enabled by default which doubles virtual memory space even though actual ram requirements are the same&lt;/p&gt;</comment>
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