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            <title>[SERVER-3115] Incremental collection of map reduce should not be replicated</title>
                <link>https://jira.mongodb.org/browse/SERVER-3115</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;It seems that inc collection is replicated according to &lt;br/&gt;
&lt;a href=&quot;http://groups.google.com/group/mongodb-user/browse_thread/thread/ea5c56755df63cb4&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/ea5c56755df63cb4&lt;/a&gt;&lt;/p&gt;</description>
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        <key id="17200">SERVER-3115</key>
            <summary>Incremental collection of map reduce should not be replicated</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</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="antoine">Antoine Girbal</assignee>
                                    <reporter username="antoine">Antoine Girbal</reporter>
                        <labels>
                    </labels>
                <created>Wed, 18 May 2011 04:24:40 +0000</created>
                <updated>Tue, 12 Jul 2016 00:18:00 +0000</updated>
                            <resolved>Mon, 27 Jun 2011 05:27:36 +0000</resolved>
                                                    <fixVersion>1.9.1</fixVersion>
                                    <component>MapReduce</component>
                                        <votes>2</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="43954" author="progolferyo" created="Fri, 22 Jul 2011 01:37:21 +0000"  >&lt;p&gt;The issue though is that the creation and deletion of these tmp tables is written to the oplog so when you add a new member to the replica set, the recovery period takes way longer than it should.&lt;/p&gt;

&lt;p&gt;Any ideas if there is a way to avoid writing to the oplog, if there is just a way to ignore any tmp collections when syncing?&lt;/p&gt;

&lt;p&gt;My issue is that I have a map reduce function that is run every 30 minutes, so obviously after this script in existence for several months, thousands of tmp collections have been created.  So when I bootup a new member of the replica set, it takes way longer than it should to recover.&lt;/p&gt;</comment>
                            <comment id="39296" author="antoine" created="Mon, 27 Jun 2011 05:27:36 +0000"  >&lt;p&gt;this is actually a non issue.&lt;br/&gt;
Collection creation / drop is replicated but not actual documents.&lt;br/&gt;
So it&apos;s not a big deal.&lt;/p&gt;</comment>
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