I should add that this was on DSpace 5 and that APR is not on by default (requires the libtcnative-1 package).
On Mon, Aug 17, 2015 at 11:39 AM, helix84 <heli...@centrum.sk> wrote: > Hi everyone, > > this is just a heads-up about a problem I solved with my repository. > > I was getting ~60% CPU usage on all CPUs in the DSpace VM all the time, > even when DSpace was idle. This is on Debian Jessie with distro packages of > tomcat8 and openjdk-7-jdk:amd64. > > The problem went away when I turned off APR in /etc/tomcat8/server.xml. I > confirmed this solution independently on 2 different DSpace instances. > > <!-- > <Listener className="org.apache.catalina.core.AprLifecycleListener" > SSLEngine="on" /> > --> > > Be aware if you define your HTTPS connector in Tomcat, it's attribute > syntax changes depending on whether you are using APR (OpenSSL) or not > (JSSE). > > Unrelated to CPU usage, I was also getting occasional "Too many open > files" message with APR despite trying to raise the respective ulimit. They > haven't appeared yet with APR turned off. > > If you have similar experiences, please do share them with us. > > > Regards, > ~~helix84 > > Compulsory reading: DSpace Mailing List Etiquette > https://wiki.duraspace.org/display/DSPACE/Mailing+List+Etiquette > >
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