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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-4101] Authenticated Shard MapReduce error</title>
                <link>https://jira.mongodb.org/browse/SERVER-4101</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;from thread:&lt;br/&gt;
&lt;a href=&quot;http://groups.google.com/group/mongodb-user/browse_thread/thread/8da68880d10f4214&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;http://groups.google.com/group/mongodb-user/browse_thread/thread/8da68880d10f4214&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;I&apos;m running a configuration with (currently) two shards, each of which is a replica set with two full nodes and an arbiter.  When I attempt to run a MapReduce query against the sharded collection with authentication enabled, I get this error:&lt;/p&gt;

&lt;p&gt;Thu Oct 13 13:57:47 uncaught exception: map reduce failed:{&lt;br/&gt;
        &quot;assertion&quot; : &quot;DBClientBase::findN: transport error: celes:27020 query: { mapreduce.shardedfinish: { mapreduce: \&quot;coll\&quot;, map: function () {\n\n    function pad(s, n) {\n        s = s.toString();\n    ..., reduce: function (key, values) {\n    var total = {};\n    for (var i = 0; i &amp;lt; v..., out: \&quot;out_coll\&quot;, query: { last_seen: &lt;/p&gt;
{ $gte: new Date(1318032000000) }
&lt;p&gt; }, scope: &lt;/p&gt;
{ startdate: new Date(1318032000000) }
&lt;p&gt; }, shardedOutputCollection: \&quot;tmp.mrs.coll_1318528663_6\&quot;, shards: { metadata1/celes:27020,sabin:27020: { result: \&quot;tmp.mrs.coll_1318528663_6\&quot;, timeMillis: 3012, counts: &lt;/p&gt;
{ input: 37450, emit: 39018, reduce: 65, output: 3 }
&lt;p&gt;, ok: 1.0 }, metadata2/mog:27022,shadow:27022: { result: \&quot;tmp.mrs.coll_1318528663_6\&quot;, timeMillis: 3025, counts: &lt;/p&gt;
{ input: 38452, emit: 40075, reduce: 66, output: 3 }
&lt;p&gt;, ok: 1.0 } }, shardCounts: { metadata1/celes:27020,sabin:27020: &lt;/p&gt;
{ input: 37450, emit: 39018, reduce: 65, output: 3 }
&lt;p&gt;, metadata2/mog:27022,shadow:27022: &lt;/p&gt;
{ input: 38452, emit: 40075, reduce: 66, output: 3 }
&lt;p&gt; }, counts: &lt;/p&gt;
{ emit: 79093, input: 75902, output: 6, reduce: 131 }
&lt;p&gt; }&quot;,&lt;br/&gt;
        &quot;assertionCode&quot; : 10276,&lt;br/&gt;
        &quot;errmsg&quot; : &quot;db assertion failure&quot;,&lt;br/&gt;
        &quot;ok&quot; : 0&lt;/p&gt;

&lt;p&gt;}&lt;/p&gt;

&lt;p&gt;On the other hand, with authentication disabled, the query works as expected.  I&apos;ve attached the log from celes, but I don&apos;t see anything interesting there except that tail notes that the file was truncated.  It looks like mongod just crashes.&lt;/p&gt;

&lt;p&gt;Has anyone else seen this behavior?&lt;/p&gt;

&lt;p&gt;Does anyone have any suggestions for things to try? &lt;/p&gt;</description>
                <environment></environment>
        <key id="23820">SERVER-4101</key>
            <summary>Authenticated Shard MapReduce error</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="3">Duplicate</resolution>
                                        <assignee username="kristina">Kristina Chodorow</assignee>
                                    <reporter username="antoine">Antoine Girbal</reporter>
                        <labels>
                    </labels>
                <created>Wed, 19 Oct 2011 17:37:55 +0000</created>
                <updated>Fri, 30 Mar 2012 14:24:23 +0000</updated>
                            <resolved>Wed, 9 Nov 2011 01:26:38 +0000</resolved>
                                    <version>2.0.0</version>
                                                    <component>Security</component>
                                        <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="65592" author="antoine" created="Wed, 9 Nov 2011 01:26:38 +0000"  >&lt;p&gt;dup of &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-4114&quot; title=&quot;If a shard contacts another shard for the first time for a MapReduce, the sharding connection hook won&amp;#39;t be set&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-4114&quot;&gt;&lt;del&gt;SERVER-4114&lt;/del&gt;&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="62781" author="kristina" created="Wed, 26 Oct 2011 14:49:04 +0000"  >&lt;p&gt;Can you send the log from before/during the crash?&lt;/p&gt;</comment>
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