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    <title>MongoDB Jira</title>
    <link>https://jira.mongodb.org</link>
    <description>This file is an XML representation of an issue</description>
    <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-46186] Single voter replica set primaries must wait for the truncate point for {j:true} write concern</title>
                <link>https://jira.mongodb.org/browse/SERVER-46186</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Single voter replica set primaries must wait for the truncate point for {j:true} write concern to ensure user confirmed writes are not lost on recovery after a crash.&lt;/p&gt;

&lt;p&gt;Now that primaries will write the oplogTruncateAfterPoint, we must be careful not to truncate writes that were confirmed to the user as persisted, which should be safe across a server crash.&lt;/p&gt;

&lt;p&gt;We only want to do this for single voter replica sets, because multi-node multi-voter replica sets are likely to lose {w: 1, j: true} writes anyway after a primary crash due to rollback: they are inherently unsafe already.&lt;br/&gt;
Single voter mutli-node replica sets must use the truncate point on startup for cross replica set data consistency. Single voter single node replica sets are doing it for simplicity, not to make startup behavior complicated regarding the truncate point, and avoid breaking downstream dependencies.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1150634">SERVER-46186</key>
            <summary>Single voter replica set primaries must wait for the truncate point for {j:true} write concern</summary>
                <type id="3" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14718&amp;avatarType=issuetype">Task</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="dianna.hohensee@mongodb.com">Dianna Hohensee</assignee>
                                    <reporter username="dianna.hohensee@mongodb.com">Dianna Hohensee</reporter>
                        <labels>
                    </labels>
                <created>Fri, 14 Feb 2020 19:59:07 +0000</created>
                <updated>Sun, 29 Oct 2023 22:12:09 +0000</updated>
                            <resolved>Thu, 27 Feb 2020 13:58:33 +0000</resolved>
                                                    <fixVersion>4.3.4</fixVersion>
                                    <component>Storage</component>
                                        <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="2914176" author="xgen-internal-githook" created="Thu, 27 Feb 2020 14:38:53 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Dianna Hohensee&apos;, &apos;username&apos;: &apos;DiannaHohensee&apos;, &apos;email&apos;: &apos;dianna.hohensee@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-46186&quot; title=&quot;Single voter replica set primaries must wait for the truncate point for {j:true} write concern&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-46186&quot;&gt;&lt;del&gt;SERVER-46186&lt;/del&gt;&lt;/a&gt; Single voter replica set primaries for &lt;/p&gt;
{j: true}
&lt;p&gt; writeConcern writes will wait for earlier writes to become visible before flushing the journal to disk to ensure user confirmed writes are never truncated during recovery after a crash.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/454b3e9f8418bb9b0134869af582a0518aad5e12&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/454b3e9f8418bb9b0134869af582a0518aad5e12&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="996861">SERVER-44555</issuekey>
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