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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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            <title>[SERVER-21937] Calculate write concern and distlock timeouts for talking to the config servers relative to the electionTimeout for the config replica set</title>
                <link>https://jira.mongodb.org/browse/SERVER-21937</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;As part of &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-21050&quot; title=&quot;Add a failover workload to cause CSRS config server primary failovers&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-21050&quot;&gt;&lt;del&gt;SERVER-21050&lt;/del&gt;&lt;/a&gt; we increased the distlock and write concern timeout for config server operations so that they were actually long enough to allow proper retries in the event of config server failure with the default election timeout of 10 seconds.  For people on fast reliable networks who turn down their election timeout, however, these values may be too long and lead to slower error detection and retry logic execution.  We should calculate these timeouts in term of the election timeout, or at least allow these timeouts to be independently controlled so that people can adjust them down at the same time that they adjust down their election timeout.&lt;/p&gt;</description>
                <environment></environment>
        <key id="244412">SERVER-21937</key>
            <summary>Calculate write concern and distlock timeouts for talking to the config servers relative to the electionTimeout for the config replica set</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="2">Won&apos;t Fix</resolution>
                                        <assignee username="backlog-server-sharding">[DO NOT USE] Backlog - Sharding Team</assignee>
                                    <reporter username="spencer@mongodb.com">Spencer Brody</reporter>
                        <labels>
                    </labels>
                <created>Thu, 17 Dec 2015 22:09:38 +0000</created>
                <updated>Tue, 6 Dec 2022 04:37:21 +0000</updated>
                            <resolved>Fri, 13 Apr 2018 15:37:02 +0000</resolved>
                                                                    <component>Replication</component>
                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>5</watches>
                                                                                                                <comments>
                            <comment id="1117697" author="kaloian.manassiev" created="Thu, 17 Dec 2015 22:33:56 +0000"  >&lt;p&gt;When you say that these longer timeouts may &quot;lead to slower error detection&quot;, do you mean in the pathological cases where primary cannot be elected at all? Because in the normal case where a primary is elected faster than 10 seconds, the timeouts which we selected make no difference.&lt;/p&gt;

&lt;p&gt;For the pathological case, they do not make error detection by clients much slower either, because we have an upper bound on the number of retries, which in the absence of master will fail very quickly.&lt;/p&gt;

&lt;p&gt;So, in my opinion there is no need to link the distributed lock and the wait for config write concern timeouts with the replication&apos;s election timeout.&lt;/p&gt;</comment>
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