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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-5737] Mongorestore to mongos when using auth is slow.</title>
                <link>https://jira.mongodb.org/browse/SERVER-5737</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;I have observed and been able to duplicate mongorestore running very slowely when restoring data to a sharded cluster while using auth.  I setup a simple test cluster for the below examples:&lt;br/&gt;
Before Auth: (fast, about 10MB/sec)&lt;br/&gt;
Restore to 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;
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					&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;[root@testserver scratch]# /opt/point2/mongodb/bin/mongorestore --host &lt;/span&gt;&lt;/pre&gt;
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						&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;mongotest --port 27017 -d testdb properties.bson &lt;/span&gt;&lt;/pre&gt;
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						&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;connected to: mongotest:27017 &lt;/span&gt;&lt;/pre&gt;
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						&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 Apr 30 15:52:12 properties.bson &lt;/span&gt;&lt;/pre&gt;
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					&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 Apr 30 15:52:12      going into namespace [testdb.properties] &lt;/span&gt;&lt;/pre&gt;
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&lt;p/&gt;
&lt;p&gt;After Auth:      (slow, about 3MB/sec) &lt;br/&gt;
Restore to mongos:&lt;/p&gt;
&lt;p/&gt;
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&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;
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					&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;[root@testserver scratch]# /opt/point2/mongodb/bin/mongorestore --host &lt;/span&gt;&lt;/pre&gt;
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						&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;mongotest --port 27017 -d testdb -u user -p password properties.bson &lt;/span&gt;&lt;/pre&gt;
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						&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;connected to: mongotest:27017 &lt;/span&gt;&lt;/pre&gt;
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						&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;Tue May  1 08:37:05 properties.bson &lt;/span&gt;&lt;/pre&gt;
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					&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;Tue May  1 08:37:05      going into namespace [testdb.properties] &lt;/span&gt;&lt;/pre&gt;
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&lt;/div&gt;
&lt;p/&gt;
&lt;p&gt;Restore to replica set primary with auth: (fast, about 10MB/sec)&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;
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					&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;[root@testserver scratch]# /opt/point2/mongodb/bin/mongorestore --host &lt;/span&gt;&lt;/pre&gt;
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						&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;mongotest --port 27018 -d testdb -u user -p password properties.bson &lt;/span&gt;&lt;/pre&gt;
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						&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;connected to: mongotest:27018 &lt;/span&gt;&lt;/pre&gt;
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						&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;Tue May  1 08:39:32 properties.bson &lt;/span&gt;&lt;/pre&gt;
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						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
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&lt;p/&gt;

&lt;p&gt;This was a simple test setup that only contained 1 shard and 2 replica set members, the disparity in speed difference seems to be larger with a larger cluster.  In our prod cluster mongorestore runs closer to 1MB/sec with auth against a mongos instance and 50MB/sec run directly against the primary server in one shard.&lt;/p&gt;</description>
                <environment>CentOS 6.2 x86_64 - Runnig on VMWare ESX</environment>
        <key id="37551">SERVER-5737</key>
            <summary>Mongorestore to mongos when using auth is slow.</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="3">Duplicate</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="alaphoid">Jonathan Schneider</reporter>
                        <labels>
                    </labels>
                <created>Tue, 1 May 2012 17:17:33 +0000</created>
                <updated>Wed, 15 Aug 2012 14:04:15 +0000</updated>
                            <resolved>Tue, 1 May 2012 20:28:21 +0000</resolved>
                                    <version>2.0.4</version>
                                                    <component>Performance</component>
                    <component>Tools</component>
                                        <votes>0</votes>
                                    <watches>0</watches>
                                                                                                                <comments>
                            <comment id="115281" author="alaphoid" created="Tue, 1 May 2012 19:08:13 +0000"  >&lt;p&gt;Yes, sounds good, thanks.&lt;/p&gt;</comment>
                            <comment id="115257" author="milkie" created="Tue, 1 May 2012 18:15:41 +0000"  >&lt;p&gt;I marked &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-5405&quot; title=&quot;mongos does not send reads to secondaries after replica restart when using keyFiles&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-5405&quot;&gt;&lt;del&gt;SERVER-5405&lt;/del&gt;&lt;/a&gt; as a candidate for backporting for 2.0.6.  May I resolve this as a duplicate?&lt;/p&gt;</comment>
                            <comment id="115251" author="alaphoid" created="Tue, 1 May 2012 18:07:19 +0000"  >&lt;p&gt;This may have been fixed in &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-5405&quot; class=&quot;external-link&quot; rel=&quot;nofollow&quot;&gt;https://jira.mongodb.org/browse/SERVER-5405&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;I tested with 2.1.1 latest nightly and the problem does not exist.  Would love to see a 2.0 backport.&lt;/p&gt;</comment>
                            <comment id="115228" author="alaphoid" created="Tue, 1 May 2012 17:29:30 +0000"  >&lt;p&gt;I should add that during the slow restores nothing is pinned anywhere, iostat reveals quiet disks, top reveals quiet cpu&apos;s on both the mongos instance and the primary server.  Nothing seems to be causing a bottleneck anywhere.  When run without auth the mongod instance on the primary server becomes pinned clearly being the bottleneck to faster restore speed.&lt;/p&gt;</comment>
                            <comment id="115224" author="alaphoid" created="Tue, 1 May 2012 17:20:04 +0000"  >&lt;p&gt;I believe this is an important issue as it will make restoring a database in the event of a problem a much longer process than it should be.  I needed to restore a 20GB database on prod and it took 12 hours, on my test setup without auth it did it in less than 30 minutes.&lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
                            <issuelinktype id="10010">
                    <name>Duplicate</name>
                                            <outwardlinks description="duplicates">
                                        <issuelink>
            <issuekey id="34701">SERVER-5405</issuekey>
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