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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>
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<item>
            <title>[SERVER-13605] Error in writing into MongoDB: !loc.isNull()</title>
                <link>https://jira.mongodb.org/browse/SERVER-13605</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;MongoDB Version: 2.4.5&lt;br/&gt;
OS: Win Server 2008 R2 SP1&lt;br/&gt;
Config Server: 3 instances. &lt;br/&gt;
Sharding: 2 shards&lt;br/&gt;
Replica set size: 3&lt;/p&gt;

&lt;p&gt;Issue: &lt;br/&gt;
MongoDB is readable but not fully writable. For example, issuing a command as below: &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;   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.collection.update({Active:true}, {$set: {field: value}}, false, true);&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;The command will update only one record and then receiving error message simply saying &quot;!loc.isNull()&quot;. &lt;/p&gt;

&lt;p&gt;I have also observed frequent log entries in mongos.log &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;Wed Apr 16 14:55:06.541 [LockPinger] warning: distributed lock pinger &apos;configserver1:port1,configserver2:port2,configserv3:port3/mongosserver:port5:&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;1397543735:41&apos; detected an exception while pinging. :: caused by :: update not consistent  ns: config.lockpings query:&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;{ _id: &quot;mongosserver:port5:1397543735:41&quot; } update: { $set: { ping: new Date(1397631305839) } } gle1: { err: &quot;!loc.isNull()&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;n: 0, connectionId: 4481, waited: 126, ok: 1.0 } gle2: { updatedExisting: true, n: 1, lastOp: Timestamp 1397631305000|1&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;, connectionId: 4468, waited: 69, err: null, ok: 1.0 }&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
			&lt;/tbody&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;p/&gt;


</description>
                <environment></environment>
        <key id="131457">SERVER-13605</key>
            <summary>Error in writing into MongoDB: !loc.isNull()</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</type>
                                            <priority id="1" iconUrl="https://jira.mongodb.org/images/icons/priorities/blocker.svg">Blocker - P1</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="thomas.rueckstiess@mongodb.com">Thomas Rueckstiess</assignee>
                                    <reporter username="xuguoming@nexlabs.com">Yang</reporter>
                        <labels>
                            <label>sharding</label>
                    </labels>
                <created>Wed, 16 Apr 2014 10:16:32 +0000</created>
                <updated>Wed, 10 Dec 2014 23:19:32 +0000</updated>
                            <resolved>Tue, 20 May 2014 22:00:52 +0000</resolved>
                                    <version>2.4.5</version>
                                                    <component>Write Ops</component>
                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="590841" author="thomasr" created="Tue, 20 May 2014 22:00:52 +0000"  >&lt;p&gt;Hi Guoming,&lt;/p&gt;

&lt;p&gt;We haven&apos;t heard back from you and can&apos;t continue the diagnosis without additional information. I&apos;ll go ahead and resolve the ticket now. If this is still an issue and you would like to follow up, feel free to re-open it and provide the log files requested in the comments above.&lt;/p&gt;

&lt;p&gt;Kind Regards,&lt;br/&gt;
Thomas&lt;/p&gt;</comment>
                            <comment id="567387" author="thomasr" created="Tue, 29 Apr 2014 21:25:39 +0000"  >&lt;p&gt;Hi Guoming,&lt;/p&gt;

&lt;p&gt; Is this still an issue? We still need some more information and the log files from the shards and config servers to diagnose the issue. Can you please attach them?&lt;/p&gt;

&lt;p&gt;Regards, &lt;br/&gt;
Thomas&lt;/p&gt;</comment>
                            <comment id="551467" author="eliot" created="Wed, 16 Apr 2014 11:40:55 +0000"  >&lt;p&gt;Can you send the logs from the shard primaries and config servers?&lt;/p&gt;</comment>
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