UPDATE:things improved dramatically for us after I did a clean
recompile of DSpace, making sure to use the right version of
Java. ;-)
We still had masses of errors showing in the tomcat log, as
before, but tomcat at least did not fall over every five
minutes. In fact, it remained up all day.
More problems following the 1.4.2 upgrade:
We're getting heaps of errors from tomcat, like this:
17/03/2008 13:05:14 org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet mydspace threw exception
java.util.NoSuchElementException: Timeout waiting for idle
I found a thread on dspace-tech about this (typically unresolved) with
the suggestion to tweak the db.maxconnections and db.maxidle parameters.
So ... changed db.maxconnection from 30 to 50, and db.maxidle from -1 to 5.
Also changed maxconnections in postgresql.conf from 100 to 150.
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