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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>[JAVA-787] DBTCPConnector._checkWriteError () consume a  PoolOutputBuffer not returned to SimplePool</title>
                <link>https://jira.mongodb.org/browse/JAVA-787</link>
                <project id="10006" key="JAVA">Java Driver</project>
                    <description>&lt;p&gt;MongoDB Java Driver every time execution update method will from to get a PoolOutputBuffer in SimplePool, returned to the pool after use, but when set WriteConcern for SAFE mode, the drive itself will perform DBTCPConnector._checkWriteError () method to check the safety of the method from the pool made &#8203;&#8203;a PoolOutputBuffer, after not returned to the pool, this will consume a PoolOutputBuffer, and this PoolOutputBuffer default at least occupy more than 50KByte memory space, and a tremendous waste of resources.When high concurrent to monitoring jvm memory usage knew terror Eden area is growing very fast.&lt;/p&gt;</description>
                <environment>ubuntu10, jdk1.6,mongodb2.0.3, mongo-java-driver-2.9.3</environment>
        <key id="68539">JAVA-787</key>
            <summary>DBTCPConnector._checkWriteError () consume a  PoolOutputBuffer not returned to SimplePool</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="jeff.yemin@mongodb.com">Jeffrey Yemin</assignee>
                                    <reporter username="barrytdc">barry</reporter>
                        <labels>
                            <label>driver</label>
                    </labels>
                <created>Fri, 15 Mar 2013 10:11:41 +0000</created>
                <updated>Thu, 2 May 2013 08:10:55 +0000</updated>
                            <resolved>Sat, 16 Mar 2013 01:10:52 +0000</resolved>
                                    <version>2.9.3</version>
                                    <fixVersion>2.11.0</fixVersion>
                                    <component>Performance</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="290434" author="auto" created="Fri, 15 Mar 2013 19:37:48 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;date&apos;: u&apos;2013-03-15T19:34:31Z&apos;, u&apos;name&apos;: u&apos;Jeff Yemin&apos;, u&apos;email&apos;: u&apos;jeff.yemin@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/JAVA-787&quot; title=&quot;DBTCPConnector._checkWriteError () consume a  PoolOutputBuffer not returned to SimplePool&quot; class=&quot;issue-link&quot; data-issue-key=&quot;JAVA-787&quot;&gt;&lt;del&gt;JAVA-787&lt;/del&gt;&lt;/a&gt;: Calling OutMessage.doneWithMessage in finally block of DBPort.findOne&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo-java-driver/commit/81b21a435c45eed4ed11ed94114454e7be89827d&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo-java-driver/commit/81b21a435c45eed4ed11ed94114454e7be89827d&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="290255" author="jeff.yemin" created="Fri, 15 Mar 2013 17:18:58 +0000"  >&lt;p&gt;Thank you for the bug report.  I see the problem and will have a fix for it soon, in the upcoming 2.11.0 release.&lt;/p&gt;</comment>
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