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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-48967] Prevent replicated writes on empty namespaces on secondaries</title>
                <link>https://jira.mongodb.org/browse/SERVER-48967</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;The writes on empty namespaces are exempt from &lt;a href=&quot;https://github.com/mongodb/mongo/blob/0e4178afe88237ead101b11fcb19864d9d5a903c/src/mongo/db/repl/oplog.cpp#L270&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;this check&lt;/a&gt; and will be allowed even if the node has stepped down.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1384027">SERVER-48967</key>
            <summary>Prevent replicated writes on empty namespaces on secondaries</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="jesse@mongodb.com">A. Jesse Jiryu Davis</assignee>
                                    <reporter username="siyuan.zhou@mongodb.com">Siyuan Zhou</reporter>
                        <labels>
                    </labels>
                <created>Thu, 18 Jun 2020 17:40:32 +0000</created>
                <updated>Sun, 29 Oct 2023 22:06:45 +0000</updated>
                            <resolved>Fri, 10 Jul 2020 14:10:46 +0000</resolved>
                                                    <fixVersion>4.0.20</fixVersion>
                    <fixVersion>4.2.9</fixVersion>
                    <fixVersion>4.4.1</fixVersion>
                    <fixVersion>3.6.20</fixVersion>
                    <fixVersion>4.7.0</fixVersion>
                                    <component>Replication</component>
                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="3331802" author="xgen-internal-githook" created="Mon, 10 Aug 2020 23:51:06 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;A. Jesse Jiryu Davis&apos;, &apos;email&apos;: &apos;jesse@mongodb.com&apos;, &apos;username&apos;: &apos;ajdavis&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-48967&quot; title=&quot;Prevent replicated writes on empty namespaces on secondaries&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-48967&quot;&gt;&lt;del&gt;SERVER-48967&lt;/del&gt;&lt;/a&gt; Ban non-primary writes with empty namespace&lt;/p&gt;

&lt;p&gt;(cherry picked from commit 1ce0d13e46f720b35ae01e37d16bcd7b3789a045)&lt;br/&gt;
Branch: v4.4&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/17e5bae41f80d52d82345c3a038203c489aa8b69&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/17e5bae41f80d52d82345c3a038203c489aa8b69&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3301676" author="xgen-internal-githook" created="Fri, 24 Jul 2020 19:12:28 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;A. Jesse Jiryu Davis&apos;, &apos;email&apos;: &apos;jesse@mongodb.com&apos;, &apos;username&apos;: &apos;ajdavis&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-48967&quot; title=&quot;Prevent replicated writes on empty namespaces on secondaries&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-48967&quot;&gt;&lt;del&gt;SERVER-48967&lt;/del&gt;&lt;/a&gt; Ban non-primary writes with empty namespace&lt;/p&gt;

&lt;p&gt;(cherry picked from commit 1ce0d13e46f720b35ae01e37d16bcd7b3789a045)&lt;/p&gt;

&lt;ol&gt;
	&lt;li&gt;Conflicts:&lt;/li&gt;
	&lt;li&gt;src/mongo/db/op_observer_impl_test.cpp&lt;/li&gt;
	&lt;li&gt;src/mongo/db/repl/replication_coordinator_external_state_impl.cpp&lt;/li&gt;
	&lt;li&gt;src/mongo/db/repl/replication_coordinator_impl.cpp&lt;br/&gt;
Branch: v3.6&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/c57ab4974d550323c7f86d1de6cbc0499458138b&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/c57ab4974d550323c7f86d1de6cbc0499458138b&lt;/a&gt;&lt;/li&gt;
&lt;/ol&gt;
</comment>
                            <comment id="3300016" author="xgen-internal-githook" created="Fri, 24 Jul 2020 03:32:38 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;A. Jesse Jiryu Davis&apos;, &apos;email&apos;: &apos;jesse@mongodb.com&apos;, &apos;username&apos;: &apos;ajdavis&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-48967&quot; title=&quot;Prevent replicated writes on empty namespaces on secondaries&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-48967&quot;&gt;&lt;del&gt;SERVER-48967&lt;/del&gt;&lt;/a&gt; Ban non-primary writes with empty namespace&lt;/p&gt;

&lt;p&gt;(cherry picked from commit 1ce0d13e46f720b35ae01e37d16bcd7b3789a045)&lt;br/&gt;
Branch: v4.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/7afdf1c0b501f5e9ff4a0621b3747bf25d7a5588&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/7afdf1c0b501f5e9ff4a0621b3747bf25d7a5588&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3299120" author="xgen-internal-githook" created="Thu, 23 Jul 2020 16:16:31 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;A. Jesse Jiryu Davis&apos;, &apos;email&apos;: &apos;jesse@mongodb.com&apos;, &apos;username&apos;: &apos;ajdavis&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-48967&quot; title=&quot;Prevent replicated writes on empty namespaces on secondaries&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-48967&quot;&gt;&lt;del&gt;SERVER-48967&lt;/del&gt;&lt;/a&gt; Ban non-primary writes with empty namespace&lt;/p&gt;

&lt;p&gt;(cherry picked from commit 1ce0d13e46f720b35ae01e37d16bcd7b3789a045)&lt;br/&gt;
Branch: v4.2&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/9bffa938ea7e8a18ba0e5508f126f6e723d063a9&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/9bffa938ea7e8a18ba0e5508f126f6e723d063a9&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3278697" author="xgen-internal-githook" created="Thu, 9 Jul 2020 23:02:56 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;A. Jesse Jiryu Davis&apos;, &apos;email&apos;: &apos;jesse@mongodb.com&apos;, &apos;username&apos;: &apos;ajdavis&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-48967&quot; title=&quot;Prevent replicated writes on empty namespaces on secondaries&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-48967&quot;&gt;&lt;del&gt;SERVER-48967&lt;/del&gt;&lt;/a&gt; Ban non-primary writes with empty namespace&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/1ce0d13e46f720b35ae01e37d16bcd7b3789a045&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/1ce0d13e46f720b35ae01e37d16bcd7b3789a045&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3267150" author="siyuan.zhou@10gen.com" created="Thu, 2 Jul 2020 00:43:23 +0000"  >&lt;p&gt;Wow. That&apos;s about 6 years ago! I thought it was for &lt;a href=&quot;https://github.com/mongodb/mongo/blob/b2f840c9efca29820fb48a89741fa18ace8a33b1/src/mongo/db/repl/replication_coordinator_external_state_impl.cpp#L445&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;initiate&lt;/a&gt;, but not sure. I guess a patch build would prove or disprove that. Another way is to add an invariant in getOpObserver()-&amp;gt;onOpMessage() to check writability is always true.&lt;/p&gt;</comment>
                            <comment id="3266986" author="jesse" created="Wed, 1 Jul 2020 23:19:51 +0000"  >&lt;p&gt;The special case for empty namespaces was introduced in &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-15645&quot; title=&quot;Order writes to replication oplog under document-level locking&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-15645&quot;&gt;&lt;del&gt;SERVER-15645&lt;/del&gt;&lt;/a&gt;, I can&apos;t see why:&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;https://github.com/mongodb/mongo/commit/dd5b2d7f5cd96b4ca8acd01d15c5ac369c4f50f2#diff-c64a61c81bff3e9fbae542a82463b76dR295&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/dd5b2d7f5cd96b4ca8acd01d15c5ac369c4f50f2#diff-c64a61c81bff3e9fbae542a82463b76dR295&lt;/a&gt;&lt;/p&gt;</comment>
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