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April, 2016 &middot; CGSpace Notes
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<h1><a href="/cgspace-notes/">CGSpace Notes</a></h1>
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<h1 class="text-primary">April, 2016</h1>
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Apr 4, 2016
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<h2 id="2016-04-04:c88be15f5b2f07c85f7742556a955e47">2016-04-04</h2>
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<li>Looking at log file use on CGSpace and notice that we need to work on our cron setup a bit</li>
<li>We are backing up all logs in the log folder, including useless stuff like solr, cocoon, handle-plugin, etc</li>
<li>After running DSpace for over five years I&rsquo;ve never needed to look in any other log file than dspace.log, leave alone one from last year!</li>
<li>This will save us a few gigs of backup space we&rsquo;re paying for on S3</li>
<li>Also, I noticed the <code>checker</code> log has some errors we should pay attention to:</li>
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<pre><code>Run start time: 03/06/2016 04:00:22
Error retrieving bitstream ID 71274 from asset store.
java.io.FileNotFoundException: /home/cgspace.cgiar.org/assetstore/64/29/06/64290601546459645925328536011917633626 (Too many open files)
at java.io.FileInputStream.open(Native Method)
at java.io.FileInputStream.&lt;init&gt;(FileInputStream.java:146)
at edu.sdsc.grid.io.local.LocalFileInputStream.open(LocalFileInputStream.java:171)
at edu.sdsc.grid.io.GeneralFileInputStream.&lt;init&gt;(GeneralFileInputStream.java:145)
at edu.sdsc.grid.io.local.LocalFileInputStream.&lt;init&gt;(LocalFileInputStream.java:139)
at edu.sdsc.grid.io.FileFactory.newFileInputStream(FileFactory.java:630)
at org.dspace.storage.bitstore.BitstreamStorageManager.retrieve(BitstreamStorageManager.java:525)
at org.dspace.checker.BitstreamDAO.getBitstream(BitstreamDAO.java:60)
at org.dspace.checker.CheckerCommand.processBitstream(CheckerCommand.java:303)
at org.dspace.checker.CheckerCommand.checkBitstream(CheckerCommand.java:171)
at org.dspace.checker.CheckerCommand.process(CheckerCommand.java:120)
at org.dspace.app.checker.ChecksumChecker.main(ChecksumChecker.java:236)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.dspace.app.launcher.ScriptLauncher.runOneCommand(ScriptLauncher.java:225)
at org.dspace.app.launcher.ScriptLauncher.main(ScriptLauncher.java:77)
******************************************************
</code></pre>
<ul>
<li>So this would be the <code>tomcat7</code> Unix user, who seems to have a default limit of 1024 files in its shell</li>
<li>For what it&rsquo;s worth, we have been setting the actual Tomcat 7 process&rsquo; limit to 16384 for a few years (in <code>/etc/default/tomcat7</code>)</li>
<li>Looks like cron will read limits from <code>/etc/security/limits.*</code> so we can do something for the tomcat7 user there</li>
<li>Submit pull request for Tomcat 7 limits in Ansible dspace role (<a href="https://github.com/ilri/rmg-ansible-public/pull/30">#30</a>)</li>
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<h1 class="author-name text-primary">Alan Orth</h1>
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