<!-- 
RSS generated by JIRA (9.7.1#970001-sha1:2222b88b221c4928ef0de3161136cc90c8356a66) at Thu Feb 08 03:45:56 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-17895] Server should not clear collection plan cache periodically when write operations are issued</title>
                <link>https://jira.mongodb.org/browse/SERVER-17895</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Each collection&apos;s query plan cache for is currently cleared after 1000 write operations are issued against the collection.  This gives distribution changes a chance to affect planning decisions for query shapes that are already cached.&lt;/p&gt;

&lt;p&gt;However, clearing the entire plan cache is aggressive, and at worst will cause deployments with a heavy write load to effectively not use the query plan cache at all.&lt;/p&gt;

&lt;p&gt;This mechanism will be made obsolete by &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-15225&quot; title=&quot;CachedPlanStage should execute for trial period and re-plan if query performs poorly&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-15225&quot;&gt;&lt;del&gt;SERVER-15225&lt;/del&gt;&lt;/a&gt;.  When &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-15225&quot; title=&quot;CachedPlanStage should execute for trial period and re-plan if query performs poorly&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-15225&quot;&gt;&lt;del&gt;SERVER-15225&lt;/del&gt;&lt;/a&gt; is resolved, we should remove it entirely.&lt;/p&gt;</description>
                <environment></environment>
        <key id="194229">SERVER-17895</key>
            <summary>Server should not clear collection plan cache periodically when write operations are issued</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="david.storch@mongodb.com">David Storch</assignee>
                                    <reporter username="rassi">J Rassi</reporter>
                        <labels>
                    </labels>
                <created>Mon, 6 Apr 2015 15:30:52 +0000</created>
                <updated>Wed, 15 Mar 2017 03:40:20 +0000</updated>
                            <resolved>Thu, 23 Jul 2015 22:58:46 +0000</resolved>
                                                    <fixVersion>3.0.7</fixVersion>
                    <fixVersion>3.1.7</fixVersion>
                                    <component>Querying</component>
                                        <votes>0</votes>
                                    <watches>11</watches>
                                                                                                                <comments>
                            <comment id="1015418" author="xgen-internal-githook" created="Wed, 26 Aug 2015 20:50:47 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;coollog&apos;, u&apos;name&apos;: u&apos;Qingyang Chen&apos;, u&apos;email&apos;: u&apos;qingyang.chen@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-17895&quot; title=&quot;Server should not clear collection plan cache periodically when write operations are issued&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-17895&quot;&gt;&lt;del&gt;SERVER-17895&lt;/del&gt;&lt;/a&gt; Remove clearing plan cache after 1000 write ops&lt;/p&gt;

&lt;p&gt;(cherry picked from commit 26c5394f79d12ac1c9df7263199e2926ee2e19ff)&lt;/p&gt;

&lt;p&gt;Conflicts:&lt;br/&gt;
	src/mongo/db/catalog/collection.cpp&lt;br/&gt;
	src/mongo/db/query/plan_cache.cpp&lt;br/&gt;
	src/mongo/db/query/plan_cache.h&lt;br/&gt;
	src/mongo/db/query/plan_cache_test.cpp&lt;br/&gt;
	src/mongo/db/query/query_knobs.cpp&lt;br/&gt;
	src/mongo/db/query/query_knobs.h&lt;br/&gt;
Branch: v3.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/8b975d0005e324516842fb30b2a13c86dc832514&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/8b975d0005e324516842fb30b2a13c86dc832514&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="991069" author="xgen-internal-githook" created="Tue, 28 Jul 2015 18:46:06 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;coollog&apos;, u&apos;name&apos;: u&apos;Qingyang Chen&apos;, u&apos;email&apos;: u&apos;qingyang.chen@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-17895&quot; title=&quot;Server should not clear collection plan cache periodically when write operations are issued&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-17895&quot;&gt;&lt;del&gt;SERVER-17895&lt;/del&gt;&lt;/a&gt; Remove clearing plan cache after 1000 write ops&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/26c5394f79d12ac1c9df7263199e2926ee2e19ff&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/26c5394f79d12ac1c9df7263199e2926ee2e19ff&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="987626" author="xgen-internal-githook" created="Thu, 23 Jul 2015 22:56:24 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;coollog&apos;, u&apos;name&apos;: u&apos;Qingyang Chen&apos;, u&apos;email&apos;: u&apos;qingyang.chen@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-17895&quot; title=&quot;Server should not clear collection plan cache periodically when write operations are issued&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-17895&quot;&gt;&lt;del&gt;SERVER-17895&lt;/del&gt;&lt;/a&gt; Remove clearing plan cache after 1000 write ops&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/26c5394f79d12ac1c9df7263199e2926ee2e19ff&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/26c5394f79d12ac1c9df7263199e2926ee2e19ff&lt;/a&gt;&lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
                            <issuelinktype id="10011">
                    <name>Depends</name>
                                            <outwardlinks description="depends on">
                                        <issuelink>
            <issuekey id="157798">SERVER-15225</issuekey>
        </issuelink>
                            </outwardlinks>
                                                        </issuelinktype>
                            <issuelinktype id="10012">
                    <name>Related</name>
                                            <outwardlinks description="related to">
                                        <issuelink>
            <issuekey id="234958">DOCS-6401</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="364847">SERVER-28314</issuekey>
        </issuelink>
                            </outwardlinks>
                                                        </issuelinktype>
                    </issuelinks>
                <attachments>
                    </attachments>
                <subtasks>
                    </subtasks>
                <customfields>
                                                <customfield id="customfield_10050" key="com.atlassian.jira.toolkit:comments">
                        <customfieldname># Replies</customfieldname>
                        <customfieldvalues>
                            <customfieldvalue>3.0</customfieldvalue>
                        </customfieldvalues>
                    </customfield>
                                                                <customfield id="customfield_18555" key="com.onresolve.jira.groovy.groovyrunner:scripted-field">
                        <customfieldname># of Sprints</customfieldname>
                        <customfieldvalues>
                            <customfieldvalue>1.0</customfieldvalue>

                        </customfieldvalues>
                    </customfield>
                                                                                                                                                                                                                                                                                                                                                                                    <customfield id="customfield_12451" key="com.atlassian.jira.plugin.system.customfieldtypes:multiversion">
                        <customfieldname>Backport Completed</customfieldname>
                        <customfieldvalues>
                                <customfieldvalue id="15689">3.0.7</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>Tue, 21 Jul 2015 18:38:52 +0000</customfieldvalue>

                        </customfieldvalues>
                    </customfield>
                                                                <customfield id="customfield_10052" key="com.atlassian.jira.toolkit:dayslastcommented">
                        <customfieldname>Days since reply</customfieldname>
                        <customfieldvalues>
                                        8 years, 25 weeks ago
    
                        </customfieldvalues>
                    </customfield>
                                                                <customfield id="customfield_18254" key="com.onresolve.jira.groovy.groovyrunner:scripted-field">
                        <customfieldname>Dependencies</customfieldname>
                        <customfieldvalues>
                            <customfieldvalue><![CDATA[<s><a href='https://jira.mongodb.org/browse/SERVER-15225'>SERVER-15225</a></s>]]></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>geert.bosch@mongodb.com</customfieldvalue>

                        </customfieldvalues>
                    </customfield>
                                                                <customfield id="customfield_11151" key="com.atlassian.jira.toolkit:LastCommentDate">
                        <customfieldname>Last public comment date</customfieldname>
                        <customfieldvalues>
                            8 years, 25 weeks ago
                        </customfieldvalues>
                    </customfield>
                                                                                                                                                                                                                                                                    <customfield id="customfield_10051" key="com.atlassian.jira.toolkit:participants">
                        <customfieldname>Participants</customfieldname>
                        <customfieldvalues>
                                        <customfieldvalue>david.storch@mongodb.com</customfieldvalue>
            <customfieldvalue>xgen-internal-githook</customfieldvalue>
            <customfieldvalue>rassi</customfieldvalue>
    
                        </customfieldvalues>
                    </customfield>
                                                                                                                                                                                                                                        <customfield id="customfield_14254" key="com.pyxis.greenhopper.jira:gh-lexo-rank">
                        <customfieldname>Product Rank</customfieldname>
                        <customfieldvalues>
                            <customfieldvalue>1|hrl92v:</customfieldvalue>

                        </customfieldvalues>
                    </customfield>
                                                                                                                                                                                <customfield id="customfield_12550" key="com.pyxis.greenhopper.jira:gh-lexo-rank">
                        <customfieldname>Rank</customfieldname>
                        <customfieldvalues>
                            <customfieldvalue>2|hrekf3:</customfieldvalue>

                        </customfieldvalues>
                    </customfield>
                                                                <customfield id="customfield_10558" key="com.pyxis.greenhopper.jira:gh-global-rank">
                        <customfieldname>Rank (Obsolete)</customfieldname>
                        <customfieldvalues>
                            <customfieldvalue>9223372036854775807</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_10557" key="com.pyxis.greenhopper.jira:gh-sprint">
                        <customfieldname>Sprint</customfieldname>
                        <customfieldvalues>
                                <customfieldvalue id="635">Quint Iteration 7</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|hsfmt3:</customfieldvalue>

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