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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>[CDRIVER-2357] &quot;not master&quot; error directly querying secondary with OP_MSG</title>
                <link>https://jira.mongodb.org/browse/CDRIVER-2357</link>
                <project id="10030" key="CDRIVER">C Driver</project>
                    <description>&lt;p&gt;In the OP_QUERY wire protocol we can directly connect to a secondary by setting the slaveOkay bit for all messages when TopologyType is Single. With OP_MSG there&apos;s no such bit, so reads are rejected with &quot;not master and slaveOk=false&quot;.&lt;/p&gt;

&lt;p&gt;Solution: include {$readPreference: &quot;primaryPreferred&quot;} with all messages if there&apos;s no read preference, the wire protocol is OP_MSG, and TopologyType is Single.&lt;/p&gt;

&lt;p&gt;Refactor the existing code in mongoc-cursor.c and mongoc_collection_aggregate that does this especially for cursors with a serverId set.&lt;/p&gt;</description>
                <environment></environment>
        <key id="457119">CDRIVER-2357</key>
            <summary>&quot;not master&quot; error directly querying secondary with OP_MSG</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="jesse@mongodb.com">A. Jesse Jiryu Davis</reporter>
                        <labels>
                    </labels>
                <created>Fri, 10 Nov 2017 16:25:05 +0000</created>
                <updated>Sat, 28 Oct 2023 11:30:21 +0000</updated>
                            <resolved>Sun, 12 Nov 2017 11:40:06 +0000</resolved>
                                    <version>1.9.0</version>
                                                    <component>libmongoc</component>
                                        <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="1724291" author="xgen-internal-githook" created="Mon, 13 Nov 2017 18:19:04 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;A. Jesse Jiryu Davis&apos;, &apos;username&apos;: &apos;ajdavis&apos;, &apos;email&apos;: &apos;jesse@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/CDRIVER-2357&quot; title=&quot;&amp;quot;not master&amp;quot; error directly querying secondary with OP_MSG&quot; class=&quot;issue-link&quot; data-issue-key=&quot;CDRIVER-2357&quot;&gt;&lt;del&gt;CDRIVER-2357&lt;/del&gt;&lt;/a&gt; query secondaries with OP_MSG, part 3&lt;/p&gt;

&lt;p&gt;Injecting read preference primaryPreferred in &quot;getMore&quot; commands is ok.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo-c-driver/commit/af7ca3d1df0764bca45bd6dacdb3c87472e32b60&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo-c-driver/commit/af7ca3d1df0764bca45bd6dacdb3c87472e32b60&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1723913" author="xgen-internal-githook" created="Mon, 13 Nov 2017 13:28:16 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;A. Jesse Jiryu Davis&apos;, &apos;username&apos;: &apos;ajdavis&apos;, &apos;email&apos;: &apos;jesse@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/CDRIVER-2357&quot; title=&quot;&amp;quot;not master&amp;quot; error directly querying secondary with OP_MSG&quot; class=&quot;issue-link&quot; data-issue-key=&quot;CDRIVER-2357&quot;&gt;&lt;del&gt;CDRIVER-2357&lt;/del&gt;&lt;/a&gt; query secondaries with OP_MSG, part 2&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo-c-driver/commit/d41d16b23e0d1592f59dc5314b4932a23e721bd4&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo-c-driver/commit/d41d16b23e0d1592f59dc5314b4932a23e721bd4&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1723458" author="xgen-internal-githook" created="Sun, 12 Nov 2017 04:05:25 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;A. Jesse Jiryu Davis&apos;, &apos;username&apos;: &apos;ajdavis&apos;, &apos;email&apos;: &apos;jesse@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/CDRIVER-2357&quot; title=&quot;&amp;quot;not master&amp;quot; error directly querying secondary with OP_MSG&quot; class=&quot;issue-link&quot; data-issue-key=&quot;CDRIVER-2357&quot;&gt;&lt;del&gt;CDRIVER-2357&lt;/del&gt;&lt;/a&gt; refactor cursor options logic&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo-c-driver/commit/76cab91be40d809dff6676ab8ee59e05b32f097d&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo-c-driver/commit/76cab91be40d809dff6676ab8ee59e05b32f097d&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1723452" author="xgen-internal-githook" created="Sun, 12 Nov 2017 04:05:08 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;A. Jesse Jiryu Davis&apos;, &apos;username&apos;: &apos;ajdavis&apos;, &apos;email&apos;: &apos;jesse@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/CDRIVER-2357&quot; title=&quot;&amp;quot;not master&amp;quot; error directly querying secondary with OP_MSG&quot; class=&quot;issue-link&quot; data-issue-key=&quot;CDRIVER-2357&quot;&gt;&lt;del&gt;CDRIVER-2357&lt;/del&gt;&lt;/a&gt; query secondaries with OP_MSG&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo-c-driver/commit/340d8a4caaa8bd3c60227fae53db912fea284cd9&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo-c-driver/commit/340d8a4caaa8bd3c60227fae53db912fea284cd9&lt;/a&gt;&lt;/p&gt;</comment>
                    </comments>
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            <issuekey id="406402">CDRIVER-2219</issuekey>
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