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        <build-date>13-04-2023</build-date>
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            <title>[SERVER-16903] Prevent query to single mongod from hanging during server power failure</title>
                <link>https://jira.mongodb.org/browse/SERVER-16903</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;During power cycle testing of a single mongod, we found that a client query would hang when the server suddenly terminates due to a power failure. &lt;/p&gt;

&lt;p&gt;The hanging will result in a socket exception only after the tcp keep alive period has expired. The expiration time is tcp_keepalive_time + tcp_keepalive_intvl * tcp_keepalive_probes. The former two values are set to be a maximum of 5 minutes each, but the tcp_keepalive_probes is left at the system default, which is 9 for Windows and Linux. This would result in the socket terminating after 5 + 5 * 9 = 50 minutes. Which is a long time.&lt;/p&gt;

&lt;p&gt;A possible solution is to set the tcp_keepalive_probes to a lower number.&lt;/p&gt;</description>
                <environment>Ubuntu 14.04</environment>
        <key id="179209">SERVER-16903</key>
            <summary>Prevent query to single mongod from hanging during server power failure</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="1" iconUrl="https://jira.mongodb.org/images/icons/statuses/open.png" description="">Open</status>
                    <statusCategory id="2" key="new" colorName="default"/>
                                    <resolution id="-1">Unresolved</resolution>
                                        <assignee username="backlog-server-platform">DO NOT USE - Backlog - Platform Team</assignee>
                                    <reporter username="robert.guo@mongodb.com">Robert Guo</reporter>
                        <labels>
                            <label>28qa</label>
                            <label>move-sa</label>
                            <label>platforms-re-triaged</label>
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                <created>Fri, 16 Jan 2015 19:02:24 +0000</created>
                <updated>Thu, 9 Apr 2020 02:24:27 +0000</updated>
                                            <version>2.8.0-rc5</version>
                                    <fixVersion>features we&amp;#39;re not sure of</fixVersion>
                                    <component>Networking</component>
                                        <votes>0</votes>
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