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    <title>MongoDB Jira</title>
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        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-51160] Increase current sync source ping time in nodes_in_primarys_datacenter_dont_sync_across_datacenters.js</title>
                <link>https://jira.mongodb.org/browse/SERVER-51160</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;We found that in order to switch sync sources, the code first checks that the node&apos;s current sync source&apos;s ping time is greater than the candidate sync source&apos;s ping time by the&#160;&lt;tt&gt;changeSyncSourceThreshold&lt;/tt&gt;, which defaults to 5 seconds.&lt;/p&gt;

&lt;p&gt;In the logs, we found that the ping time for the current sync source was&#160;&lt;tt&gt;&quot;pingMs&quot; : NumberLong(11)&#160;&lt;/tt&gt;, whereas the ping time for the primary (the candidate sync source) was&#160;&lt;tt&gt;&quot;pingMs&quot; : NumberLong(13)&lt;/tt&gt;&#160;, so the node never switched sync sources to the primary.&#160;&lt;/p&gt;

&lt;p&gt;We can probably increase the delay between the data centers in the JS test to a larger value. 300 ms should be sufficient.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1490532">SERVER-51160</key>
            <summary>Increase current sync source ping time in nodes_in_primarys_datacenter_dont_sync_across_datacenters.js</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="13201">Fixed</resolution>
                                        <assignee username="xuerui.fa@mongodb.com">Xuerui Fa</assignee>
                                    <reporter username="huayu.ouyang@mongodb.com">Huayu Ouyang</reporter>
                        <labels>
                    </labels>
                <created>Fri, 25 Sep 2020 16:47:34 +0000</created>
                <updated>Sun, 29 Oct 2023 22:02:45 +0000</updated>
                            <resolved>Fri, 25 Sep 2020 20:50:31 +0000</resolved>
                                                    <fixVersion>4.8.0</fixVersion>
                                    <component>Replication</component>
                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="3412627" author="xgen-internal-githook" created="Fri, 25 Sep 2020 20:46:12 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;XueruiFa&apos;, &apos;email&apos;: &apos;xuerui.fa@mongodb.com&apos;, &apos;username&apos;: &apos;XueruiFa&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-51160&quot; title=&quot;Increase current sync source ping time in nodes_in_primarys_datacenter_dont_sync_across_datacenters.js&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-51160&quot;&gt;&lt;del&gt;SERVER-51160&lt;/del&gt;&lt;/a&gt;: Increase sync source ping time in nodes_in_primarys_datacenter_dont_sync_across_datacenters.js&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/8e971d9538d20a3ed218773cf674390eb9c98f97&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/8e971d9538d20a3ed218773cf674390eb9c98f97&lt;/a&gt;&lt;/p&gt;</comment>
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