<!-- 
RSS generated by JIRA (9.7.1#970001-sha1:2222b88b221c4928ef0de3161136cc90c8356a66) at Wed Feb 07 21:09:26 UTC 2024

It is possible to restrict the fields that are returned in this document by specifying the 'field' parameter in your request.
For example, to request only the issue key and summary append 'field=key&field=summary' to the URL of your request.
-->
<rss version="0.92" >
<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>[CDRIVER-421] Replica set query stuck after mongo update to 2.6.4</title>
                <link>https://jira.mongodb.org/browse/CDRIVER-421</link>
                <project id="10030" key="CDRIVER">C Driver</project>
                    <description>&lt;p&gt;HI,&lt;br/&gt;
I recently updated Mongo version to 2.6.4 from 2.4.4.&lt;br/&gt;
While updating one of my replica secondary crashed with exception and it took almost 6 days to come online.&lt;br/&gt;
Now all systems are running on version 2.6.4.&lt;br/&gt;
My DB performance became slow after that.&lt;br/&gt;
When i check with the currentOp operation on one of the Mongos Servers and found some queries which were running for days.&lt;br/&gt;
The operation is this:&lt;br/&gt;
&quot;opid&quot; : &quot;secondset:175744&quot;,&lt;br/&gt;
&quot;active&quot; : true,&lt;br/&gt;
&quot;secs_running&quot; : 1124884,&lt;br/&gt;
&quot;microsecs_running&quot; : NumberLong(&quot;1124884403215&quot;),&lt;br/&gt;
&quot;op&quot; : &quot;none&quot;,&lt;br/&gt;
&quot;ns&quot; : &quot;&quot;,&lt;br/&gt;
&quot;query&quot; : {&lt;br/&gt;
},&lt;br/&gt;
&quot;desc&quot; : &quot;repl writer worker 8&quot;,&lt;br/&gt;
&quot;threadId&quot; : &quot;0x7f7bb445d700&quot;,&lt;br/&gt;
&quot;waitingForLock&quot; : false,&lt;br/&gt;
&quot;killPending&quot; : true,&lt;br/&gt;
&quot;numYields&quot; : 0,&lt;br/&gt;
&quot;lockStats&quot; : &lt;/p&gt;
{
&quot;timeLockedMicros&quot; :
{ &quot;r&quot; : NumberLong(0), &quot;w&quot; : NumberLong(135) }
&lt;p&gt;,&lt;br/&gt;
&quot;timeAcquiringMicros&quot; : {&lt;br/&gt;
}&lt;br/&gt;
}&lt;br/&gt;
There are many processes like this which are showing me this behavior.&lt;br/&gt;
My current set UP has:&lt;br/&gt;
5 Mongos Servers&lt;br/&gt;
3 Config Servers&lt;br/&gt;
2 replica set.&lt;br/&gt;
Error which caused the replica secondary crash was this:&lt;br/&gt;
2014-09-05T05:24:29.211+0530 &lt;span class=&quot;error&quot;&gt;&amp;#91;rsSync&amp;#93;&lt;/span&gt; replSet initial sync data copy, starting syncup&lt;br/&gt;
2014-09-05T05:24:29.212+0530 &lt;span class=&quot;error&quot;&gt;&amp;#91;rsSync&amp;#93;&lt;/span&gt; oplog sync 1 of 3&lt;br/&gt;
2014-09-05T05:24:29.795+0530 &lt;span class=&quot;error&quot;&gt;&amp;#91;rsSync&amp;#93;&lt;/span&gt; replication oplog stream went back in time. previous timestamp: 5407e88e:3 newest timestamp: 5406e5e3:42. attempting to sync directly from primary.&lt;br/&gt;
2014-09-05T05:24:29.904+0530 &lt;span class=&quot;error&quot;&gt;&amp;#91;repl writer worker 1&amp;#93;&lt;/span&gt; ERROR: exception: :: caused by :: 56 An empty update path is not valid. on: &lt;/p&gt;
{ ts: Timestamp 1409738211000|67, h: -8833753959820233956, v: 2, op: &quot;u&quot;, ns: &quot;ibeat20140903.visitor&quot;, o2:
{ _id: ObjectId(&apos;54060caebc88dbf98cc57898&apos;) }
&lt;p&gt;, o: { $set: { : 20, AID-41575656: 17, count: 1938, pgAccessTime: 1409738211851 } } }&lt;br/&gt;
2014-09-05T05:24:29.905+0530 &lt;span class=&quot;error&quot;&gt;&amp;#91;repl writer worker 1&amp;#93;&lt;/span&gt; Fatal Assertion 16361&lt;br/&gt;
2014-09-05T05:24:29.905+0530 &lt;span class=&quot;error&quot;&gt;&amp;#91;repl writer worker 1&amp;#93;&lt;/span&gt;&lt;br/&gt;
***aborting after fassert() failure&lt;br/&gt;
Surprisingly when I search for the record using mongos server I got nothing.&lt;br/&gt;
db.visitor.findOne({_id: ObjectId(&apos;54060caebc88dbf98cc57898&apos;) });&lt;br/&gt;
null&lt;/p&gt;</description>
                <environment>Mongo Db shard set up running on version 2.6.4</environment>
        <key id="158598">CDRIVER-421</key>
            <summary>Replica set query stuck after mongo update to 2.6.4</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="virendra.agarwal@timesinternet.in">Virendra Agarwal</reporter>
                        <labels>
                    </labels>
                <created>Wed, 17 Sep 2014 07:13:45 +0000</created>
                <updated>Mon, 15 Nov 2021 16:12:36 +0000</updated>
                            <resolved>Wed, 17 Sep 2014 15:15:04 +0000</resolved>
                                                                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="720815" author="gianfranco" created="Wed, 17 Sep 2014 15:15:04 +0000"  >&lt;p&gt;Hi Virendra,&lt;/p&gt;

&lt;p&gt;I&apos;m closing this ticket as it&apos;s a duplicate of the linked ticket which was opened by Satendra.&lt;br/&gt;
If you have trouble finding the ticket number let me know.&lt;/p&gt;

&lt;p&gt;Regards,&lt;br/&gt;
Gianfranco&lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
                            <issuelinktype id="10010">
                    <name>Duplicate</name>
                                            <outwardlinks description="duplicates">
                                                        </outwardlinks>
                                                        </issuelinktype>
                    </issuelinks>
                <attachments>
                    </attachments>
                <subtasks>
                    </subtasks>
                <customfields>
                                                                                                                                                                                                                                                                                                                                                                    <customfield id="customfield_15850" key="com.atlassian.jira.plugins.jira-development-integration-plugin:devsummary">
                        <customfieldname>Development</customfieldname>
                        <customfieldvalues>
                            
                        </customfieldvalues>
                    </customfield>
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            <customfield id="customfield_12550" key="com.pyxis.greenhopper.jira:gh-lexo-rank">
                        <customfieldname>Rank</customfieldname>
                        <customfieldvalues>
                            <customfieldvalue>2|hs2ag7:</customfieldvalue>

                        </customfieldvalues>
                    </customfield>
                                                                <customfield id="customfield_10558" key="com.pyxis.greenhopper.jira:gh-global-rank">
                        <customfieldname>Rank (Obsolete)</customfieldname>
                        <customfieldvalues>
                            <customfieldvalue>138060</customfieldvalue>
                        </customfieldvalues>
                    </customfield>
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            </customfields>
    </item>
</channel>
</rss>