<!-- 
RSS generated by JIRA (9.7.1#970001-sha1:2222b88b221c4928ef0de3161136cc90c8356a66) at Thu Feb 08 03:40:03 UTC 2024

It is possible to restrict the fields that are returned in this document by specifying the 'field' parameter in your request.
For example, to request only the issue key and summary append 'field=key&field=summary' to the URL of your request.
-->
<rss version="0.92" >
<channel>
    <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>
    </build-info>


<item>
            <title>[SERVER-16131] Log File Blowing up on sharded ycsb run in EC2 (or inserts too slow)</title>
                <link>https://jira.mongodb.org/browse/SERVER-16131</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Running ycsb against a two shard cluster, each shard a 3 node repl set on EC2 running 2.8.0-rc0 using mmapv1. Load phase of 200M documents. The log file grows by about 9 GB/hr mostly on slow insert log statements. Running 8 mongos, with ycsb load generation co-located with mongos. &lt;/p&gt;

&lt;p&gt;mongods running on c3.4xlarge AMI instances. Data on local ssd. Log file to different local ssd. &lt;/p&gt;

&lt;p&gt;Increasing the slowms to 200 resolves the problem. &lt;/p&gt;</description>
                <environment></environment>
        <key id="169126">SERVER-16131</key>
            <summary>Log File Blowing up on sharded ycsb run in EC2 (or inserts too slow)</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="david.daly@mongodb.com">David Daly</assignee>
                                    <reporter username="david.daly@mongodb.com">David Daly</reporter>
                        <labels>
                            <label>28qa</label>
                    </labels>
                <created>Thu, 13 Nov 2014 19:58:43 +0000</created>
                <updated>Thu, 14 Apr 2016 15:19:33 +0000</updated>
                            <resolved>Tue, 17 Feb 2015 17:21:30 +0000</resolved>
                                    <version>2.8.0-rc0</version>
                                                    <component>Logging</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="830673" author="david.daly" created="Tue, 17 Feb 2015 17:21:30 +0000"  >&lt;p&gt;This has gone away now. Insert performance has been fixed. Was related to &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-16773&quot; title=&quot;Performance degradation due to TCMalloc scalability&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-16773&quot;&gt;&lt;del&gt;SERVER-16773&lt;/del&gt;&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="766704" author="dan@10gen.com" created="Tue, 18 Nov 2014 06:15:42 +0000"  >&lt;p&gt;David, it&apos;s still unclear to me if this is being blamed on a slowdown in mongos or in mongod insert perf.&lt;/p&gt;</comment>
                            <comment id="766038" author="david.daly" created="Mon, 17 Nov 2014 17:13:05 +0000"  >&lt;p&gt;Some more data. &lt;br/&gt;
My benchmark clients are seeing average insert latency of ~26 ms with 2.6.5, and ~86 ms with 2.8.0-rc0. There&apos;s a matching decrease in throughput. mmapv1 getting ~369 inserts/sec per client (2952 overall) and 2.6.5 getting ~1240 inserts / sec per client (9920 overall). So in this case 2.8.0-rc0 is 3.3x slower than 2.6.5. &lt;/p&gt;</comment>
                            <comment id="764968" author="david.daly" created="Fri, 14 Nov 2014 22:37:45 +0000"  >&lt;p&gt;Basic problem is that this is a reasonably configured system and didn&apos;t behave like this on 2.6.5. &lt;/p&gt;

&lt;p&gt;Most likely this should be considered a performance issue against inserts. &lt;/p&gt;

&lt;p&gt;I&apos;m collecting more data to attach on insert latency. &lt;/p&gt;</comment>
                            <comment id="764064" author="scotthernandez" created="Fri, 14 Nov 2014 02:13:53 +0000"  >&lt;p&gt;What is the bug? &quot;Excessive&quot; logging for slow operations? &lt;/p&gt;

&lt;p&gt;Slow operation are logged and always have been, so this doesn&apos;t seem surprising or unexpected, nor a new behavior.&lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
                            <issuelinktype id="10012">
                    <name>Related</name>
                                            <outwardlinks description="related to">
                                        <issuelink>
            <issuekey id="169312">SERVER-16152</issuekey>
        </issuelink>
                            </outwardlinks>
                                                                <inwardlinks description="is related to">
                                        <issuelink>
            <issuekey id="177589">SERVER-16773</issuekey>
        </issuelink>
                            </inwardlinks>
                                    </issuelinktype>
                    </issuelinks>
                <attachments>
                    </attachments>
                <subtasks>
                    </subtasks>
                <customfields>
                                                <customfield id="customfield_10050" key="com.atlassian.jira.toolkit:comments">
                        <customfieldname># Replies</customfieldname>
                        <customfieldvalues>
                            <customfieldvalue>5.0</customfieldvalue>
                        </customfieldvalues>
                    </customfield>
                                                                                                                                                                                                                                                                                                                                                                                                                                                                        <customfield id="customfield_10011" key="com.atlassian.jira.plugin.system.customfieldtypes:radiobuttons">
                        <customfieldname>Backwards Compatibility</customfieldname>
                        <customfieldvalues>
                                <customfieldvalue key="10038"><![CDATA[Fully Compatible]]></customfieldvalue>

                        </customfieldvalues>
                    </customfield>
                                                                                                                                                                                                                                                                                                                                                                                                                                            <customfield id="customfield_10055" key="com.atlassian.jira.ext.charting:firstresponsedate">
                        <customfieldname>Date of 1st Reply</customfieldname>
                        <customfieldvalues>
                            <customfieldvalue>Fri, 14 Nov 2014 02:13:53 +0000</customfieldvalue>

                        </customfieldvalues>
                    </customfield>
                                                                <customfield id="customfield_10052" key="com.atlassian.jira.toolkit:dayslastcommented">
                        <customfieldname>Days since reply</customfieldname>
                        <customfieldvalues>
                                        9 years, 1 day ago
    
                        </customfieldvalues>
                    </customfield>
                                                                <customfield id="customfield_18254" key="com.onresolve.jira.groovy.groovyrunner:scripted-field">
                        <customfieldname>Dependencies</customfieldname>
                        <customfieldvalues>
                            <customfieldvalue><![CDATA[]]></customfieldvalue>


                        </customfieldvalues>
                    </customfield>
                                                                <customfield id="customfield_15850" key="com.atlassian.jira.plugins.jira-development-integration-plugin:devsummary">
                        <customfieldname>Development</customfieldname>
                        <customfieldvalues>
                            
                        </customfieldvalues>
                    </customfield>
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    <customfield id="customfield_10057" key="com.atlassian.jira.toolkit:lastusercommented">
                        <customfieldname>Last comment by Customer</customfieldname>
                        <customfieldvalues>
                            <customfieldvalue>true</customfieldvalue>
                        </customfieldvalues>
                    </customfield>
                                                                                            <customfield id="customfield_10056" key="com.atlassian.jira.toolkit:lastupdaterorcommenter">
                        <customfieldname>Last commenter</customfieldname>
                        <customfieldvalues>
                            <customfieldvalue>ramon.fernandez@mongodb.com</customfieldvalue>

                        </customfieldvalues>
                    </customfield>
                                                                <customfield id="customfield_11151" key="com.atlassian.jira.toolkit:LastCommentDate">
                        <customfieldname>Last public comment date</customfieldname>
                        <customfieldvalues>
                            9 years, 1 day ago
                        </customfieldvalues>
                    </customfield>
                                                                                                                                                    <customfield id="customfield_10032" key="com.atlassian.jira.plugin.system.customfieldtypes:select">
                        <customfieldname>Operating System</customfieldname>
                        <customfieldvalues>
                                <customfieldvalue key="10026"><![CDATA[ALL]]></customfieldvalue>

                        </customfieldvalues>
                    </customfield>
                                                                                                                                                                                <customfield id="customfield_10051" key="com.atlassian.jira.toolkit:participants">
                        <customfieldname>Participants</customfieldname>
                        <customfieldvalues>
                                        <customfieldvalue>dan@mongodb.com</customfieldvalue>
            <customfieldvalue>david.daly@mongodb.com</customfieldvalue>
            <customfieldvalue>scotthernandez</customfieldvalue>
    
                        </customfieldvalues>
                    </customfield>
                                                                                                                                                                                                                                        <customfield id="customfield_14254" key="com.pyxis.greenhopper.jira:gh-lexo-rank">
                        <customfieldname>Product Rank</customfieldname>
                        <customfieldvalues>
                            <customfieldvalue>1|hrlizr:</customfieldvalue>

                        </customfieldvalues>
                    </customfield>
                                                                                                                                                                                <customfield id="customfield_12550" key="com.pyxis.greenhopper.jira:gh-lexo-rank">
                        <customfieldname>Rank</customfieldname>
                        <customfieldvalues>
                            <customfieldvalue>2|hs3y6n:</customfieldvalue>

                        </customfieldvalues>
                    </customfield>
                                                                <customfield id="customfield_10558" key="com.pyxis.greenhopper.jira:gh-global-rank">
                        <customfieldname>Rank (Obsolete)</customfieldname>
                        <customfieldvalues>
                            <customfieldvalue>147941</customfieldvalue>
                        </customfieldvalues>
                    </customfield>
                                                                                            <customfield id="customfield_23361" key="com.onresolve.jira.groovy.groovyrunner:scripted-field">
                        <customfieldname>Requested By</customfieldname>
                        <customfieldvalues>
                                

                        </customfieldvalues>
                    </customfield>
                                                                                                                                                                                                                                                                                                                            <customfield id="customfield_10750" key="com.atlassian.jira.plugin.system.customfieldtypes:textarea">
                        <customfieldname>Steps To Reproduce</customfieldname>
                        <customfieldvalues>
                            <customfieldvalue>&lt;p&gt;2 shard config, with ycsb database sharded, but not pre-split. Run load phase for 200 M documents. The log file on the shard 0 primary starts to grow almost immediately. &lt;/p&gt;</customfieldvalue>

                        </customfieldvalues>
                    </customfield>
                                                                                                                                                                                                                                                                    <customfield id="customfield_10053" key="com.atlassian.jira.ext.charting:timeinstatus">
                        <customfieldname>Time In Status</customfieldname>
                        <customfieldvalues>
                            
                        </customfieldvalues>
                    </customfield>
                                                                                                                                                                                                                                                                                                                                                                                                                                                                        <customfield id="customfield_22870" key="com.onresolve.jira.groovy.groovyrunner:scripted-field">
                        <customfieldname>Triagers</customfieldname>
                        <customfieldvalues>
                                

                        </customfieldvalues>
                    </customfield>
                                                                                                                                                                                                                                                                                                                                                                                    <customfield id="customfield_14350" key="com.pyxis.greenhopper.jira:gh-lexo-rank">
                        <customfieldname>serverRank</customfieldname>
                        <customfieldvalues>
                            <customfieldvalue>1|hsgh5b:</customfieldvalue>

                        </customfieldvalues>
                    </customfield>
                                    </customfields>
    </item>
</channel>
</rss>