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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-225] Server fails on dataset -  database corruption</title>
                <link>https://jira.mongodb.org/browse/SERVER-225</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Tue Aug 11 01:03:19 lindex.newsites  Caught Assertion insert, continuing&lt;br/&gt;
Tue Aug 11 01:01:52 insert lindex.newsites exception userassert:can&apos;t map file memory - mongo requires 64 bit build for larger datasets 0ms&lt;br/&gt;
  mmap() failed for /mnt/lindex/mongodb/lindex.6 len:536870912 errno:12&lt;br/&gt;
  mmap() failed for /mnt/lindex/mongodb/lindex.6 len:536870912 errno:12&lt;/p&gt;

&lt;p&gt;My collection is called &quot;newsites&quot;&lt;/p&gt;

&lt;p&gt;In the shell, when I view the collections it shows many duplicates of the same collection (at least 20). When I try and drop the collection it says:&lt;/p&gt;

&lt;p&gt;&amp;gt; db.newsites.drop()&lt;/p&gt;
{&quot;errmsg&quot; : &quot;ns not found&quot; , &quot;ok&quot; : 0}

&lt;p&gt;The server was consuming ~ 1.3 GB of memory (before restarted). The node has 1.7 GB of memory.&lt;/p&gt;

&lt;p&gt;I restarted the server and the duplicate collections are still there. After the server restart, the process was able to run about 2/3 of way through the dataset and crashed again.&lt;/p&gt;

&lt;p&gt;The raw disk is consuming ~ 3,027 MB (mongo data dir).&lt;/p&gt;

&lt;p&gt;From a code standpoint, I am using the Java driver and iterating over 1,884,105 rows using a DBCursor. I am inspecting a long value in the document and inserting a record into a new collection if it matches (in this case... all 1.8 M documents match).&lt;/p&gt;

&lt;p&gt;This is a problem on a live/production server.&lt;/p&gt;</description>
                <environment>32-bit linux </environment>
        <key id="10428">SERVER-225</key>
            <summary>Server fails on dataset -  database corruption</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</type>
                                            <priority id="2" iconUrl="https://jira.mongodb.org/images/icons/priorities/critical.svg">Critical - P2</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="eliot">Eliot Horowitz</assignee>
                                    <reporter username="rn@deftlabs.com">Ryan Nitz</reporter>
                        <labels>
                    </labels>
                <created>Mon, 10 Aug 2009 21:27:26 +0000</created>
                <updated>Thu, 10 Sep 2009 10:03:07 +0000</updated>
                            <resolved>Mon, 10 Aug 2009 21:35:40 +0000</resolved>
                                                                    <component>Usability</component>
                                        <votes>0</votes>
                                    <watches>0</watches>
                                                                                                                <comments>
                            <comment id="10683" author="eliot" created="Thu, 10 Sep 2009 10:03:07 +0000"  >&lt;p&gt;closed b/c resolved more than 2 week ago&lt;/p&gt;</comment>
                            <comment id="10390" author="rgnitz" created="Mon, 10 Aug 2009 22:02:32 +0000"  >&lt;p&gt;I guess I need to move the db to a 64-bit machine first:&lt;/p&gt;

&lt;p&gt;&amp;gt; db.repairDatabase()&lt;/p&gt;
{&quot;assertion&quot; : &quot;can&apos;t map file memory - mongo requires 64 bit build for larger datasets&quot; , &quot;errmsg&quot; : &quot;db assertion failure&quot; , &quot;ok&quot; : 0}</comment>
                            <comment id="10389" author="eliot" created="Mon, 10 Aug 2009 21:35:40 +0000"  >&lt;p&gt;you should do a repairDatabase()&lt;/p&gt;

&lt;p&gt;not sure how much testing has been done on what happens when you go over 32-bit limit.&lt;/p&gt;</comment>
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