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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-7862] Connection timeouts in mongos</title>
                <link>https://jira.mongodb.org/browse/SERVER-7862</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Although DBClient* family classes support custom socket timeouts, mongos does not specify any. This can lead to hung queries in cases if mongos is running locally but mongod is running on remote host and a major networking issue takes place.&lt;/p&gt;</description>
                <environment></environment>
        <key id="58487">SERVER-7862</key>
            <summary>Connection timeouts in mongos</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</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-sharding">[DO NOT USE] Backlog - Sharding Team</assignee>
                                    <reporter username="dprokoptsev">Dmitry Prokoptsev</reporter>
                        <labels>
                    </labels>
                <created>Thu, 6 Dec 2012 17:24:43 +0000</created>
                <updated>Tue, 6 Dec 2022 05:26:51 +0000</updated>
                            <resolved>Thu, 19 Apr 2018 18:44:48 +0000</resolved>
                                                                    <component>Sharding</component>
                                        <votes>3</votes>
                                    <watches>8</watches>
                                                                                                                <comments>
                            <comment id="635071" author="matt.kangas@10gen.com" created="Thu, 26 Jun 2014 16:00:32 +0000"  >&lt;p&gt;We believe that implementing a connection-level timeout today will mask other problems and and can lead to systemic retry issues. The solution we are working towards is operation-level timeouts within mongos.&lt;/p&gt;

&lt;p&gt;Linking to a related issue &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-4094&quot; title=&quot;better mongos handling of state where connections can be established but mongod unresponsive&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-4094&quot;&gt;&lt;del&gt;SERVER-4094&lt;/del&gt;&lt;/a&gt;. Closing pull request as it is currently non-actionable.&lt;/p&gt;</comment>
                            <comment id="391974" author="paulgpa" created="Tue, 30 Jul 2013 17:28:31 +0000"  >&lt;p&gt;We might need this as well - in our case we see intermittent timeouts when mongodump is doing backups.&lt;/p&gt;</comment>
                            <comment id="208176" author="dprokoptsev" created="Thu, 6 Dec 2012 17:27:39 +0000"  >&lt;p&gt;I&apos;ve created a patch ( &lt;a href=&quot;https://github.com/mongodb/mongo/pull/335&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/pull/335&lt;/a&gt; ) which solves the issue. Hope it is useful.&lt;/p&gt;</comment>
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