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            <title>[CSHARP-341] mongodb server memory problems</title>
                <link>https://jira.mongodb.org/browse/CSHARP-341</link>
                <project id="10041" key="CSHARP">C# Driver</project>
                    <description>&lt;p&gt;When mongodb consumed all the memory, the write speed slower and slower.&lt;/p&gt;

&lt;p&gt;mongodb gridfs collect a large number of files, then use five threads write large files, the beginning of the fast, when the server is mongodb memory occupied by all, the writing speed slower and slower. How do I make it, in order to avoid such a problem will it? The main work on the master server is written, it did not need a lot of memory mapping&lt;/p&gt;</description>
                <environment>windows server2008 64bit </environment>
        <key id="23680">CSHARP-341</key>
            <summary>mongodb server memory problems</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="-1">Unassigned</assignee>
                                    <reporter username="lljuser">liulijun</reporter>
                        <labels>
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                <created>Sun, 16 Oct 2011 06:46:36 +0000</created>
                <updated>Mon, 12 Nov 2018 14:39:28 +0000</updated>
                            <resolved>Mon, 6 Apr 2015 20:04:22 +0000</resolved>
                                    <version>1.3.1</version>
                                                                        <votes>2</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="60844" author="rstam" created="Mon, 17 Oct 2011 13:42:58 +0000"  >&lt;p&gt;The connection pool should limit the number of connections to the server to 100 per client. The server writes an entry to the log every time a connection is opened or closed, so if there is a problem with the number of connections you should see evidence of that in the server logs.&lt;/p&gt;

&lt;p&gt;What is the total size of the files being uploaded, and what is the amount to RAM on your server? Perhaps you are just reaching the point where the working set no longer fits in memory, at which point you would see a slow down because your bottleneck then becomes disk I/O.&lt;/p&gt;</comment>
                            <comment id="60837" author="lljuser" created="Mon, 17 Oct 2011 13:07:51 +0000"  >&lt;p&gt;but i think the c# driver is send command to the server ,maybe the question is the connection pool ,but i test is not the question.&lt;/p&gt;</comment>
                            <comment id="60748" author="rstam" created="Sun, 16 Oct 2011 14:02:21 +0000"  >&lt;p&gt;Do you think this is a C# driver problem, or is it really a question about the mongod server?&lt;/p&gt;</comment>
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