Did a complete rebuild of DSpace 5.1 today and it seems to be working much better now...back to the 1-2 second response time. So I don't know what the problem might have been but I post this followup just in case someone hits a similar issue.

- Wally

Just upgraded our DSpace instance from 4.3 to 5.1. A few hiccups along the way but it is running now. One issue is the very long (10-15 seconds) wait time until the initial page (the community list) loads. Once it loads things go swiftly on any subsequent page.

I ran a full vacuum on the postgres database but that didn't improve things.
And I have set this to "false" in dspace.cfg

xmlui.community-list.render.full = false

and this:
xmlui.community-list.cache = 18 hours

Neither made much difference.

Is there anything else that I might try to speed this up...or perhaps a hint on which log to study to see what it's doing during that long delay. Any suggestions will be welcomed. I should say that this same platform ran 4.3 quite briskly.

Theme:  Mirage 1 XMLUI
but I see the same slowness on the JSPUI side as well

JAVA_OPTS="-d64 -server -XX:PermSize=512m -XX:-UseParallelGC -verbose:gc -Xms2048m -Xmx4G -Djava.awt.headless=true -Dfile.encoding=UTF-8"

Server:  Mac OS 10.10.3
Tomcat: 7.0.59
Postgres 9.3

- Wally

Wally Grotophorst
George Mason University
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