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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-4722] possible for partially returned results to be deleted by migrate cleanup</title>
                <link>https://jira.mongodb.org/browse/SERVER-4722</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;See:&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;http://buildbot.mongodb.org:8081/builders/Linux%2064-bit%20v8/builds/2931/steps/test_3/logs/stdio&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;http://buildbot.mongodb.org:8081/builders/Linux%2064-bit%20v8/builds/2931/steps/test_3/logs/stdio&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;The results not returned in the first cursor batch are deleted by the cleanup immediately before the error.  &lt;/p&gt;</description>
                <environment></environment>
        <key id="28678">SERVER-4722</key>
            <summary>possible for partially returned results to be deleted by migrate cleanup</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="greg_10gen">Greg Studer</assignee>
                                    <reporter username="greg_10gen">Greg Studer</reporter>
                        <labels>
                    </labels>
                <created>Thu, 19 Jan 2012 15:47:47 +0000</created>
                <updated>Mon, 11 Jul 2016 18:32:31 +0000</updated>
                            <resolved>Mon, 30 Jan 2012 17:37:48 +0000</resolved>
                                    <version>2.1.0</version>
                                    <fixVersion>2.1.0</fixVersion>
                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>0</watches>
                                                                                                                <comments>
                            <comment id="92385" author="auto" created="Sat, 25 Feb 2012 21:59:41 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;login&apos;: u&apos;astaple&apos;, u&apos;name&apos;: u&apos;Aaron&apos;, u&apos;email&apos;: u&apos;aaron@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-4150&quot; title=&quot;reimplement query using query optimizer cursor&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-4150&quot;&gt;&lt;del&gt;SERVER-4150&lt;/del&gt;&lt;/a&gt; &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-4722&quot; title=&quot;possible for partially returned results to be deleted by migrate cleanup&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-4722&quot;&gt;&lt;del&gt;SERVER-4722&lt;/del&gt;&lt;/a&gt; check for stale sharding config&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/5c0db4208cf8b0c4ce051190a4f93a17335ea21e&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/5c0db4208cf8b0c4ce051190a4f93a17335ea21e&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="82530" author="greg_10gen" created="Thu, 26 Jan 2012 15:24:35 +0000"  >&lt;p&gt;@eliot - took over b/c easier for me to track this way.  Let me know if you want it back &lt;img class=&quot;emoticon&quot; src=&quot;https://jira.mongodb.org/images/icons/emoticons/smile.png&quot; height=&quot;16&quot; width=&quot;16&quot; align=&quot;absmiddle&quot; alt=&quot;&quot; border=&quot;0&quot;/&gt;&lt;/p&gt;</comment>
                            <comment id="81849" author="greg_10gen" created="Tue, 24 Jan 2012 00:05:14 +0000"  >&lt;p&gt;New test that shows cursor growth after a number of migrations.  Migrate alone does not cause this.&lt;/p&gt;</comment>
                            <comment id="81822" author="auto" created="Mon, 23 Jan 2012 22:32:11 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;login&apos;: u&apos;erh&apos;, u&apos;name&apos;: u&apos;Eliot Horowitz&apos;, u&apos;email&apos;: u&apos;eliot@10gen.com&apos;}
&lt;p&gt;Message: if sharding metadata changes mid initial query reject and retry &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-4722&quot; title=&quot;possible for partially returned results to be deleted by migrate cleanup&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-4722&quot;&gt;&lt;del&gt;SERVER-4722&lt;/del&gt;&lt;/a&gt;&lt;br/&gt;
test forthcoming&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/52cd3d34a8db1ff28a07b0d27ff879a47a4f9c60&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/52cd3d34a8db1ff28a07b0d27ff879a47a4f9c60&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="81100" author="greg_10gen" created="Thu, 19 Jan 2012 21:32:03 +0000"  >&lt;p&gt;Test case should reproduce.  What is required is a long query, but also one that does not return all results in the first batch, the data &lt;b&gt;not&lt;/b&gt; returned in this batch is what is deleted.&lt;/p&gt;</comment>
                    </comments>
                    <attachments>
                            <attachment id="14530" name="cursors_on_migrate.js" size="3982" author="greg_10gen" created="Tue, 24 Jan 2012 00:05:14 +0000"/>
                            <attachment id="14498" name="query_on_migrate.js" size="2657" author="greg_10gen" created="Thu, 19 Jan 2012 21:32:03 +0000"/>
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