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    <language>en-us</language>    <build-info>
        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-32397] All movement of the oplog read timestamp must notify waiters</title>
                <link>https://jira.mongodb.org/browse/SERVER-32397</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;The main oplog visibility refresh loop &lt;a href=&quot;https://github.com/mongodb/mongo/blob/7ffeba9c36/src/mongo/db/storage/wiredtiger/wiredtiger_oplog_manager.cpp#L194-L195&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;separates out setting the oplog read timestamp and notifying waiters&lt;/a&gt;. Calls coming in via the &lt;a href=&quot;https://github.com/mongodb/mongo/blob/7ffeba9c36/src/mongo/db/storage/wiredtiger/wiredtiger_oplog_manager.cpp#L214-L216&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;external API&lt;/a&gt; do not. Advancing the read timestamp in that code path causes the refresh loop &lt;a href=&quot;https://github.com/mongodb/mongo/blob/7ffeba9c36/src/mongo/db/storage/wiredtiger/wiredtiger_oplog_manager.cpp#L182-L185&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;to believe the oplog timestamp did not advance&lt;/a&gt; and thus not notify any &lt;a href=&quot;https://github.com/mongodb/mongo/blob/7ffeba9c36/src/mongo/db/storage/wiredtiger/wiredtiger_oplog_manager.cpp#L119&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;waiters&lt;/a&gt;.&lt;/p&gt;</description>
                <environment></environment>
        <key id="474106">SERVER-32397</key>
            <summary>All movement of the oplog read timestamp must notify waiters</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</type>
                                            <priority id="1" iconUrl="https://jira.mongodb.org/images/icons/priorities/blocker.svg">Blocker - P1</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="daniel.gottlieb@mongodb.com">Daniel Gottlieb</assignee>
                                    <reporter username="daniel.gottlieb@mongodb.com">Daniel Gottlieb</reporter>
                        <labels>
                            <label>SWNA</label>
                    </labels>
                <created>Tue, 19 Dec 2017 02:29:50 +0000</created>
                <updated>Mon, 30 Oct 2023 23:09:49 +0000</updated>
                            <resolved>Wed, 20 Dec 2017 14:04:35 +0000</resolved>
                                                    <fixVersion>3.6.1</fixVersion>
                    <fixVersion>3.7.1</fixVersion>
                                    <component>Replication</component>
                    <component>Storage</component>
                                        <votes>0</votes>
                                    <watches>12</watches>
                                                                                                                <comments>
                            <comment id="1757255" author="xgen-internal-githook" created="Wed, 20 Dec 2017 21:23:59 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Daniel Gottlieb&apos;, &apos;email&apos;: &apos;daniel.gottlieb@mongodb.com&apos;, &apos;username&apos;: &apos;dgottlieb&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-32397&quot; title=&quot;All movement of the oplog read timestamp must notify waiters&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-32397&quot;&gt;&lt;del&gt;SERVER-32397&lt;/del&gt;&lt;/a&gt;: Notify waiters on any movement of the oplog read timestamp.&lt;/p&gt;

&lt;p&gt;(cherry picked from commit 0b7976614d028105a203147fe571b3c264e920b3)&lt;br/&gt;
Branch: v3.6&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/025d4f4fe61efd1fb6f0005be20cb45a004093d1&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/025d4f4fe61efd1fb6f0005be20cb45a004093d1&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1756725" author="xgen-internal-githook" created="Wed, 20 Dec 2017 14:00:40 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Daniel Gottlieb&apos;, &apos;email&apos;: &apos;daniel.gottlieb@mongodb.com&apos;, &apos;username&apos;: &apos;dgottlieb&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-32397&quot; title=&quot;All movement of the oplog read timestamp must notify waiters&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-32397&quot;&gt;&lt;del&gt;SERVER-32397&lt;/del&gt;&lt;/a&gt;: Notify waiters on any movement of the oplog read timestamp.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/0b7976614d028105a203147fe571b3c264e920b3&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/0b7976614d028105a203147fe571b3c264e920b3&lt;/a&gt;&lt;/p&gt;</comment>
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