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    <title>MongoDB Jira</title>
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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-16307] Bulk insert is slow in sharded with replica set environment</title>
                <link>https://jira.mongodb.org/browse/SERVER-16307</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;We are experiencing poor write performance on a large collection.  The collection has 390 millions documents with &quot;avgObjSize&quot; : 842.5387 and 4 indexes.  In the test environment, we can insert at 4000 documents per second with similar size of the collection.  In the production environment, we can only get 1000/s.  We tried the write concern setting with (w: 0) but it didn&#8217;t help.  Here are more details of the data load:&lt;/p&gt;

&lt;p&gt;App : Java (Spring Batch)&lt;br/&gt;
Bulk insert (1000/batch)&lt;br/&gt;
2 shard servers with 200GB of physical memory and 2TB storage for Mongo&lt;br/&gt;
3 config/query servers and 1 arbiter server&lt;/p&gt;</description>
                <environment>MongoDB 2.4.8 RHEL6</environment>
        <key id="171100">SERVER-16307</key>
            <summary>Bulk insert is slow in sharded with replica set environment</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="4">Incomplete</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="kyee@cobaltgroup.com">Kim Yee</reporter>
                        <labels>
                    </labels>
                <created>Tue, 25 Nov 2014 00:14:53 +0000</created>
                <updated>Sat, 24 Jan 2015 17:18:20 +0000</updated>
                            <resolved>Fri, 23 Jan 2015 17:06:28 +0000</resolved>
                                                                    <component>Performance</component>
                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="772744" author="ramon.fernandez" created="Tue, 25 Nov 2014 21:07:15 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=kyee%40cobaltgroup.com&quot; class=&quot;user-hover&quot; rel=&quot;kyee@cobaltgroup.com&quot;&gt;kyee@cobaltgroup.com&lt;/a&gt;, the SERVER project is for reporting bugs or feature suggestions for the MongoDB server. For us to determine whether there&apos;s a bug in the server I&apos;m afraid we&apos;ll need more information.&lt;/p&gt;

&lt;p&gt;To begin with, can you provide more details about your testing environment and how is it different from your production environment?  Do your testing and production environment run on the same hardware? Also, when you mention &quot;3 config/query servers&quot;, do you mean &lt;a href=&quot;http://docs.mongodb.org/manual/core/sharded-cluster-config-servers/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;config servers for sharding&lt;/a&gt; or data-bearing nodes?&lt;/p&gt;</comment>
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