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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-3496] file/io warning on some numa system WAS - Got signal: 11 (Segmentation fault)</title>
                <link>https://jira.mongodb.org/browse/SERVER-3496</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;ul&gt;
	&lt;li&gt;
	&lt;ul&gt;
		&lt;li&gt;WARNING: cannot parse numa_maps&lt;/li&gt;
	&lt;/ul&gt;
	&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;Wed Sep  7 22:44:28 &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; File I/O errno:29 Illegal seek&lt;/p&gt;

&lt;p&gt;&lt;span class=&quot;error&quot;&gt;&amp;#91;edited to show correct warning&amp;#93;&lt;/span&gt;&lt;/p&gt;</description>
                <environment>Centos 5 64bit</environment>
        <key id="20212">SERVER-3496</key>
            <summary>file/io warning on some numa system WAS - Got signal: 11 (Segmentation fault)</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</type>
                                            <priority id="2" iconUrl="https://jira.mongodb.org/images/icons/priorities/critical.svg">Critical - P2</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="mathias@mongodb.com">Mathias Stearn</assignee>
                                    <reporter username="paulgao">Paul Gao</reporter>
                        <labels>
                    </labels>
                <created>Wed, 27 Jul 2011 18:52:54 +0000</created>
                <updated>Tue, 12 Jul 2016 00:20:05 +0000</updated>
                            <resolved>Wed, 28 Sep 2011 12:40:03 +0000</resolved>
                                    <version>1.8.1</version>
                                    <fixVersion>1.8.4</fixVersion>
                    <fixVersion>2.0.1</fixVersion>
                    <fixVersion>2.1.0</fixVersion>
                                    <component>Stability</component>
                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="60892" author="eliot" created="Mon, 17 Oct 2011 17:19:25 +0000"  >&lt;p&gt;No - this is just a cosmetic issue.&lt;/p&gt;</comment>
                            <comment id="60891" author="jkoppe@indeed.com" created="Mon, 17 Oct 2011 17:18:05 +0000"  >&lt;p&gt;To be clear, if this is the only issue in the logs, should seeing this warning prevent an upgrade?&lt;/p&gt;</comment>
                            <comment id="56646" author="auto" created="Mon, 26 Sep 2011 15:51:04 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;login&apos;: u&apos;RedBeard0531&apos;, u&apos;name&apos;: u&apos;Mathias Stearn&apos;, u&apos;email&apos;: u&apos;mathias@10gen.com&apos;}
&lt;p&gt;Message: Correctly check return value of read() &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-3496&quot; title=&quot;file/io warning on some numa system WAS - Got signal: 11 (Segmentation fault)&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-3496&quot;&gt;&lt;del&gt;SERVER-3496&lt;/del&gt;&lt;/a&gt;&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/5b39cc6b52893b54d021e3014380b6d9cf9f9eed&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/5b39cc6b52893b54d021e3014380b6d9cf9f9eed&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="56567" author="auto" created="Mon, 26 Sep 2011 06:42:55 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;login&apos;: u&apos;erh&apos;, u&apos;name&apos;: u&apos;Eliot Horowitz&apos;, u&apos;email&apos;: u&apos;eliot@10gen.com&apos;}
&lt;p&gt;Message: fix numa parsing issue &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-3496&quot; title=&quot;file/io warning on some numa system WAS - Got signal: 11 (Segmentation fault)&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-3496&quot;&gt;&lt;del&gt;SERVER-3496&lt;/del&gt;&lt;/a&gt;&lt;br/&gt;
Branch: v1.8&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/b09007c96bafb185374ccd5ab68fba5e8362017f&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/b09007c96bafb185374ccd5ab68fba5e8362017f&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="56555" author="auto" created="Mon, 26 Sep 2011 04:55:51 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;login&apos;: u&apos;erh&apos;, u&apos;name&apos;: u&apos;Eliot Horowitz&apos;, u&apos;email&apos;: u&apos;eliot@10gen.com&apos;}
&lt;p&gt;Message: fix numa parsing issue &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-3496&quot; title=&quot;file/io warning on some numa system WAS - Got signal: 11 (Segmentation fault)&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-3496&quot;&gt;&lt;del&gt;SERVER-3496&lt;/del&gt;&lt;/a&gt;&lt;br/&gt;
Branch: v2.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/2c34a826b61921c1635d83bf726e38acd76c2d7a&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/2c34a826b61921c1635d83bf726e38acd76c2d7a&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="56552" author="auto" created="Mon, 26 Sep 2011 04:26:33 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;login&apos;: u&apos;erh&apos;, u&apos;name&apos;: u&apos;Eliot Horowitz&apos;, u&apos;email&apos;: u&apos;eliot@10gen.com&apos;}
&lt;p&gt;Message: fix numa parsing issue &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-3496&quot; title=&quot;file/io warning on some numa system WAS - Got signal: 11 (Segmentation fault)&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-3496&quot;&gt;&lt;del&gt;SERVER-3496&lt;/del&gt;&lt;/a&gt;&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/299620984586bdb497342d7ba60a4fb967e4ccb3&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/299620984586bdb497342d7ba60a4fb967e4ccb3&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="53587" author="redbeard0531" created="Tue, 13 Sep 2011 01:09:21 +0000"  >&lt;p&gt;@Stefan, I just noticed that the wrong error was shown in the description. It&apos;s been fixed now.&lt;/p&gt;</comment>
                            <comment id="53586" author="msnexploder" created="Tue, 13 Sep 2011 00:57:11 +0000"  >&lt;p&gt;sure thing, totally missed the NUMA bit (sorry for that - quite late here)&lt;br/&gt;
The error just looked way to similar &lt;img class=&quot;emoticon&quot; src=&quot;https://jira.mongodb.org/images/icons/emoticons/smile.png&quot; height=&quot;16&quot; width=&quot;16&quot; align=&quot;absmiddle&quot; alt=&quot;&quot; border=&quot;0&quot;/&gt;&lt;/p&gt;</comment>
                            <comment id="53585" author="redbeard0531" created="Tue, 13 Sep 2011 00:51:18 +0000"  >&lt;p&gt;@Stefan: I don&apos;t think that strace is from a NUMA machine. Could you open a different ticket with the log where you first saw it?&lt;/p&gt;</comment>
                            <comment id="53582" author="msnexploder" created="Tue, 13 Sep 2011 00:16:20 +0000"  >&lt;p&gt;Got the same problem using Mongodb 2.0.0 on CentOS 5.6 64bit.&lt;br/&gt;
I attached my strace.&lt;/p&gt;</comment>
                            <comment id="53537" author="redbeard0531" created="Mon, 12 Sep 2011 20:31:28 +0000"  >&lt;p&gt;It should be run somewhere that is exciting the error. However you don&apos;t need to bring down anything. The --port and --dbpath are specified to (hopefully) not conflict with your existing deployment. It should try to start up, fail (because dbpath doesn&apos;t exist) and shut down right away.&lt;/p&gt;</comment>
                            <comment id="53536" author="josephhammerman@clearchannel.com" created="Mon, 12 Sep 2011 20:26:30 +0000"  >&lt;p&gt;To be clear, this command shoudl be run on one of our prod servers (which are displaying the error)?&lt;/p&gt;

&lt;p&gt;We will have to schedule a time to bring down the daemon on one of our Replica Sets, if so.&lt;/p&gt;</comment>
                            <comment id="53476" author="redbeard0531" created="Mon, 12 Sep 2011 17:10:58 +0000"  >&lt;p&gt;Could you run the following and attach mongod.strace?&lt;/p&gt;

&lt;p&gt;strace -s 100 mongod --port 9999 --dbpath /tmp/does_not_exist 2&amp;gt;mongod.strace&lt;/p&gt;</comment>
                    </comments>
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            <issuekey id="17980">SERVER-3212</issuekey>
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                <attachments>
                            <attachment id="13050" name="mongod-jeeves.strace" size="16035" author="msnexploder" created="Tue, 13 Sep 2011 00:16:20 +0000"/>
                            <attachment id="12429" name="numa_maps" size="6167" author="eliot" created="Wed, 27 Jul 2011 18:52:55 +0000"/>
                            <attachment id="12430" name="numa_maps_mongodb" size="6013" author="eliot" created="Wed, 27 Jul 2011 18:52:55 +0000"/>
                            <attachment id="12431" name="numa_maps_mongodb" size="3814" author="eliot" created="Wed, 27 Jul 2011 18:52:55 +0000"/>
                            <attachment id="12432" name="numa_maps_mongodb" size="3814" author="eliot" created="Wed, 27 Jul 2011 18:52:55 +0000"/>
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