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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-15428] Empty &quot;raw&quot; error from mongos when a shard has no primary or is down</title>
                <link>https://jira.mongodb.org/browse/SERVER-15428</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Start a sharded cluster of two-member replica sets and kill a primary, so one of the shards has only a secondary. Run &apos;dbstats&apos; on a database, mongos responds:&lt;/p&gt;
&lt;p/&gt;
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&lt;p/&gt;
&lt;p&gt;This seems like an unclear error message, and the &quot;raw&quot; error document is empty, which is unlike most other error structures from mongos.&lt;/p&gt;

&lt;p&gt;Tested with 2.4.9 and 2.6.4. Same behavior if all members of the shard are down, not just the primary.&lt;/p&gt;

&lt;p&gt;Drivers may need to be updated now if they don&apos;t expect an empty error document in &quot;raw&quot; (see &lt;a href=&quot;https://jira.mongodb.org/browse/PYTHON-766&quot; title=&quot;KeyError parsing error response from mongos&quot; class=&quot;issue-link&quot; data-issue-key=&quot;PYTHON-766&quot;&gt;&lt;del&gt;PYTHON-766&lt;/del&gt;&lt;/a&gt;, PyMongo throws an exception trying to parse this error), and they may need validation that they can parse the corrected error message if mongos is updated to return a different error in this scenario.&lt;/p&gt;</description>
                <environment></environment>
        <key id="160568">SERVER-15428</key>
            <summary>Empty &quot;raw&quot; error from mongos when a shard has no primary or is down</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="9">Done</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="jesse@mongodb.com">A. Jesse Jiryu Davis</reporter>
                        <labels>
                    </labels>
                <created>Fri, 26 Sep 2014 21:21:43 +0000</created>
                <updated>Mon, 28 Sep 2020 20:15:41 +0000</updated>
                            <resolved>Mon, 19 Oct 2015 14:59:47 +0000</resolved>
                                    <version>2.4.9</version>
                    <version>2.6.4</version>
                                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="2225865" author="ian@10gen.com" created="Fri, 26 Apr 2019 13:32:51 +0000"  >&lt;p&gt;Switching &quot;Drivers Changes Needed&quot; from &quot;Maybe&quot; to &quot;Not Needed&quot; since this was closed as something other than Fixed.&lt;/p&gt;</comment>
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            <issuekey id="160565">PYTHON-766</issuekey>
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            <issuelink>
            <issuekey id="162506">DRIVERS-187</issuekey>
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