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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-66713] mongos 4.4.12 slow on mongos,but fast on mongod</title>
                <link>https://jira.mongodb.org/browse/SERVER-66713</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;hello:&lt;br/&gt;
    my mongo cluster has three mongos with six shard with three members.&lt;br/&gt;
now i find too many slow log on mongos.now has 200000+ every hour.but&lt;br/&gt;
just has little slow log on all shards.&lt;/p&gt;

&lt;p&gt;but it is still slow.on mongos is 1484ms,but on shard is 1ms.&lt;/p&gt;

&lt;p/&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;more mongos.log |grep 1234567&lt;/span&gt;&lt;/pre&gt;
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&lt;p/&gt;

&lt;p&gt;more shard1.log&lt;/p&gt;

&lt;p/&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;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&amp;nbsp;&lt;/pre&gt;
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&lt;p/&gt;</description>
                <environment></environment>
        <key id="2053475">SERVER-66713</key>
            <summary>mongos 4.4.12 slow on mongos,but fast on mongod</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="9">Done</resolution>
                                        <assignee username="backlog-server-triage">Backlog - Triage Team</assignee>
                                    <reporter username="601290552@qq.com">jing xu</reporter>
                        <labels>
                    </labels>
                <created>Tue, 24 May 2022 02:31:20 +0000</created>
                <updated>Tue, 6 Dec 2022 00:05:24 +0000</updated>
                            <resolved>Wed, 8 Jun 2022 16:53:01 +0000</resolved>
                                                                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="4602722" author="eric.sedor" created="Wed, 8 Jun 2022 16:52:51 +0000"  >&lt;p&gt;Hi &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=601290552%40qq.com&quot; class=&quot;user-hover&quot; rel=&quot;601290552@qq.com&quot;&gt;601290552@qq.com&lt;/a&gt;,&lt;/p&gt;

&lt;p&gt;For this issue we&apos;d like to encourage you to start by asking our community for help by posting on the &lt;a href=&quot;https://www.mongodb.com/community/forums&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;MongoDB Developer Community Forums&lt;/a&gt;.&lt;/p&gt;

&lt;p&gt;If the discussion there leads you to suspect a bug in the MongoDB server, then we&apos;d want to investigate it as a possible bug here in the SERVER project.&lt;/p&gt;

&lt;p&gt;Thank you!&lt;/p&gt;</comment>
                            <comment id="4568159" author="601290552@qq.com" created="Tue, 24 May 2022 02:34:43 +0000"  >&lt;p&gt;hello:&lt;br/&gt;
    my mongo cluster has three mongos with six shard with three members.&lt;br/&gt;
now i find too many slow log on mongos.now has 200000+ every hour.but&lt;br/&gt;
just has little slow log on all shards.&lt;/p&gt;

&lt;p&gt;but it is still slow.on mongos is 1484ms,but on shard is 1ms.&lt;br/&gt;
more mongos.log |grep 1234567&lt;br/&gt;
{&quot;t&quot;:&lt;/p&gt;

{&quot;$date&quot;:&quot;2022-05-14T13:24:22.449+08:00&quot;}
&lt;p&gt;,&quot;s&quot;:&quot;I&quot;, &quot;c&quot;:&quot;COMMAND&quot;, &quot;id&quot;:51803,&lt;br/&gt;
&quot;ctx&quot;:&quot;conn587389&quot;,&quot;msg&quot;:&quot;Slow query&quot;,&quot;attr&quot;:{&quot;type&quot;:&quot;command&quot;,&quot;ns&quot;:&quot;xiaoxu.orderMail&quot;,&lt;br/&gt;
&quot;command&quot;:{&quot;find&quot;:&quot;OrderMail&quot;,&quot;filter&quot;:{&quot;$and&quot;:[&lt;/p&gt;

{&quot;mailNo&quot;:&quot;1234567&quot;}
&lt;p&gt;,{&quot;createTime&quot;:{&quot;$gte&quot;:&lt;/p&gt;

{&quot;$date&quot;:&quot;2022-04-14T05:24:20.968Z&quot;}
&lt;p&gt;}},&lt;br/&gt;
{&quot;createTime&quot;:{&quot;$lte&quot;:&lt;/p&gt;

{&quot;$date&quot;:&quot;2022-05-15T05:24:20.968Z&quot;}
&lt;p&gt;}}]},&quot;sort&quot;:&lt;/p&gt;

{&quot;createTime&quot;:-1}
&lt;p&gt;,&lt;br/&gt;
&quot;nShards&quot;:1,&quot;cursorExhausted&quot;:true,&quot;numYields&quot;:0,&lt;br/&gt;
&quot;nreturned&quot;:0,&quot;reslen&quot;:234,&quot;protocol&quot;:&quot;op_msg&quot;,&quot;durationMillis&quot;:1484}}&lt;/p&gt;

&lt;p&gt;more shard1.log&lt;br/&gt;
{&quot;t&quot;:&lt;/p&gt;

{&quot;$date&quot;:&quot;2022-05-14T13:24:22.449+08:00&quot;}
&lt;p&gt;,&quot;s&quot;:&quot;I&quot;, &quot;c&quot;:&quot;COMMAND&quot;, &quot;id&quot;:51803, &quot;ctx&quot;:&quot;conn410512&quot;,&quot;msg&quot;:&quot;Slow query&quot;,&lt;br/&gt;
&quot;attr&quot;:{&quot;type&quot;:&quot;command&quot;,&quot;ns&quot;:&quot;xiaoxu.OrderMail&quot;,&quot;command&quot;:{&quot;find&quot;:&quot;OrderMail&quot;,&quot;filter&quot;:{&quot;$and&quot;:[&lt;/p&gt;

{&quot;mailNo&quot;:&quot;1234567&quot;}
&lt;p&gt;,&lt;br/&gt;
{&quot;createTime&quot;:{&quot;$gte&quot;:&lt;/p&gt;

{&quot;$date&quot;:&quot;2022-04-14T05:24:20.968Z&quot;}
&lt;p&gt;}},{&quot;createTime&quot;:{&quot;$lte&quot;:&lt;/p&gt;

{&quot;$date&quot;:&quot;2022-05-15T05:24:20.968Z&quot;}
&lt;p&gt;}}]},&lt;br/&gt;
&quot;sort&quot;:&lt;/p&gt;

{&quot;createTime&quot;:-1}
&lt;p&gt;,&lt;br/&gt;
&quot;storage&quot;:{},&quot;protocol&quot;:&quot;op_msg&quot;,&quot;durationMillis&quot;:1}}&lt;/p&gt;</comment>
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