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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-28214] Recoverable Rollback: Fallback to 3.4 rollback implementation where necessary</title>
                <link>https://jira.mongodb.org/browse/SERVER-28214</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;We should fall back to the 3.4 rollback implementation if:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;local oplog contains 3.4-generated entries that have to be rolled back.&lt;/li&gt;
	&lt;li&gt;sync source is running 3.4&lt;/li&gt;
&lt;/ul&gt;
</description>
                <environment></environment>
        <key id="361805">SERVER-28214</key>
            <summary>Recoverable Rollback: Fallback to 3.4 rollback implementation where necessary</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="9">Done</resolution>
                                        <assignee username="benety.goh@mongodb.com">Benety Goh</assignee>
                                    <reporter username="benety.goh@mongodb.com">Benety Goh</reporter>
                        <labels>
                    </labels>
                <created>Mon, 6 Mar 2017 21:07:17 +0000</created>
                <updated>Wed, 6 Dec 2017 21:16:12 +0000</updated>
                            <resolved>Thu, 4 May 2017 19:02:15 +0000</resolved>
                                                    <fixVersion>3.5.7</fixVersion>
                                    <component>Replication</component>
                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="1564761" author="xgen-internal-githook" created="Thu, 4 May 2017 19:01:01 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;benety&apos;, u&apos;name&apos;: u&apos;Benety Goh&apos;, u&apos;email&apos;: u&apos;benety@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-28214&quot; title=&quot;Recoverable Rollback: Fallback to 3.4 rollback implementation where necessary&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-28214&quot;&gt;&lt;del&gt;SERVER-28214&lt;/del&gt;&lt;/a&gt; integrate RollbackCommonPointResolver into RollbackImpl&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/32dccaea13fda911c5367287a39290706380941e&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/32dccaea13fda911c5367287a39290706380941e&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1564692" author="xgen-internal-githook" created="Thu, 4 May 2017 18:14:23 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;benety&apos;, u&apos;name&apos;: u&apos;Benety Goh&apos;, u&apos;email&apos;: u&apos;benety@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-28214&quot; title=&quot;Recoverable Rollback: Fallback to 3.4 rollback implementation where necessary&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-28214&quot;&gt;&lt;del&gt;SERVER-28214&lt;/del&gt;&lt;/a&gt; add remoteOplogNss and maxFetcherRestarts arguments to RollbackImpl constructor&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/f1730beea3b55c31e33ece40e8bc1f9b4ed78b9a&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/f1730beea3b55c31e33ece40e8bc1f9b4ed78b9a&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1563725" author="xgen-internal-githook" created="Wed, 3 May 2017 18:12:07 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;benety&apos;, u&apos;name&apos;: u&apos;Benety Goh&apos;, u&apos;email&apos;: u&apos;benety@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-28214&quot; title=&quot;Recoverable Rollback: Fallback to 3.4 rollback implementation where necessary&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-28214&quot;&gt;&lt;del&gt;SERVER-28214&lt;/del&gt;&lt;/a&gt; add RollbackImpl::Listener&lt;/p&gt;

&lt;p&gt;This class is an implementation of RollbackCommonPointResolver::Listener.&lt;br/&gt;
It processes and validates oplog entries on both the local and remote oplogs&lt;br/&gt;
as RollbackCommonPointResolver scans the oplogs in reverse for a common point.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/e6f5eb253deff5ecb1cf5fb437b948a3bd5b02dd&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/e6f5eb253deff5ecb1cf5fb437b948a3bd5b02dd&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1563486" author="xgen-internal-githook" created="Wed, 3 May 2017 14:39:26 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;benety&apos;, u&apos;name&apos;: u&apos;Benety Goh&apos;, u&apos;email&apos;: u&apos;benety@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-28214&quot; title=&quot;Recoverable Rollback: Fallback to 3.4 rollback implementation where necessary&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-28214&quot;&gt;&lt;del&gt;SERVER-28214&lt;/del&gt;&lt;/a&gt; add AbstractAsyncComponent::_startupComponent_inlock and _shutdownComponent_inlock()&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/1c44e48a50fc2cddbcb2d837a000187a1d84e34e&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/1c44e48a50fc2cddbcb2d837a000187a1d84e34e&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1560562" author="xgen-internal-githook" created="Fri, 28 Apr 2017 19:14:40 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;benety&apos;, u&apos;name&apos;: u&apos;Benety Goh&apos;, u&apos;email&apos;: u&apos;benety@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-28214&quot; title=&quot;Recoverable Rollback: Fallback to 3.4 rollback implementation where necessary&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-28214&quot;&gt;&lt;del&gt;SERVER-28214&lt;/del&gt;&lt;/a&gt; OplogInterfaceMock supports overriding of operations after construction&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/e787a11b714635b83637072d07d11da45b4f43c0&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/e787a11b714635b83637072d07d11da45b4f43c0&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1559219" author="xgen-internal-githook" created="Thu, 27 Apr 2017 15:01:50 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;benety&apos;, u&apos;name&apos;: u&apos;Benety Goh&apos;, u&apos;email&apos;: u&apos;benety@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-28214&quot; title=&quot;Recoverable Rollback: Fallback to 3.4 rollback implementation where necessary&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-28214&quot;&gt;&lt;del&gt;SERVER-28214&lt;/del&gt;&lt;/a&gt; BackgroundSync falls back on 3.4 algorithm if RollbackImpl returns IncompatibleRollbackAlgorithm&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/983ac10e3a1f37cc762e2d68ff4cf9e8263154e5&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/983ac10e3a1f37cc762e2d68ff4cf9e8263154e5&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1558790" author="xgen-internal-githook" created="Wed, 26 Apr 2017 23:18:50 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;benety&apos;, u&apos;name&apos;: u&apos;Benety Goh&apos;, u&apos;email&apos;: u&apos;benety@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-28214&quot; title=&quot;Recoverable Rollback: Fallback to 3.4 rollback implementation where necessary&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-28214&quot;&gt;&lt;del&gt;SERVER-28214&lt;/del&gt;&lt;/a&gt; clean up TaskExecutorMock&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/bb1bc2f2695681921a46d4330048ade7d8c204ca&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/bb1bc2f2695681921a46d4330048ade7d8c204ca&lt;/a&gt;&lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
                            <issuelinktype id="10012">
                    <name>Related</name>
                                            <outwardlinks description="related to">
                                        <issuelink>
            <issuekey id="380353">SERVER-29056</issuekey>
        </issuelink>
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