Peter,
A queue would be awesome. You're absolutely right regarding the cron
jobs; it's almost like you need to set a weekly reminder to go check the
execution times of your DSpace maintenance cron jobs to make sure
they're all completing and not running at the same time. :) I find that
I tweak e
My "hammer" java_opts on our production server, for when some site has
crazy big content is to temporarily run it with:
JAVA_OPTS="-server -Xms256m -Xmx4g -XX:MaxPermSize=256m"
We have 64GB ram on our boxes, so we'll survive.
Not to derail onto a tangent, but one thing I'd like to see DSpace su
Peter,
Ahh, that's very interesting. I just looked up the -server flag and it
seems on recent Sun/Oracle JVMs -server is implied on 64-bit Linux
platforms[0].
It seems my problem was the fact that heuristics used by the OOM killer
were killing Tomcat's java instead of whatever filter-media, etc
Hi Alan,
At Longsight, we customize the JAVA_OPTS in dspace/bin/dspace
https://github.com/LongsightGroup/DSpace/blob/longsight-4_x/dspace/bin/dspace#L66
#Allow user to specify java options through JAVA_OPTS variable
if [ "$JAVA_OPTS" = "" ]; then
#Default Java to use 256MB of memory
JAVA_OPTS
Alan,
We override JAVA_OPTS for the nightly filter-media task in our cron.
export JAVA_OPTS=-Xmx1200m;dspace filter-media ...
We have a set of automated ingest tools. We set JAVA_OPTS in some of the
workflows that are run by those tools.
https://github.com/Georgetown-University-Libraries/batch
That's good advice, Mark.
You're right on about the OOM killer bit. I actually had just realized
that Tomcat will always be killed by OOM if OOM is invoked, because
Tomcat of course is carving a substantial heap of memory for itself. :)
I just had a look at my DSpace Control panel and found that
On Tue, May 20, 2014 at 11:33:48AM +0300, Alan Orth wrote:
> I'm curious if anyone sets memory limits for DSpace's various cron jobs?
As delivered, DSpace does that itself. In bin/dspace, around line 69,
the script sets a maximum heap size of 256 MB, *unless* you already
have JAVA_OPTS set. One
Hi Alan
See:
http://wiki.lib.sun.ac.za/index.php/SUNScholar/Prepare_Ubuntu/S08#Step_8.2_Java_environment_settings_for_other_java_web_applications
Cheers
hg
*Hilton Gibson*
Ubuntu Linux Systems Administrator
JS Gericke Library
Room 1025D
Stellenbosch University
Private Bag X5036
Stellenbosch
75
Hi,
I'm curious if anyone sets memory limits for DSpace's various cron jobs?
Lately we've been having Tomcat's java process get killed every morning
around the same time, and all dmesg shows is that "java" was killed by
the kernel's OOM killer. Catalina logs don't show any "SEVERE" errors,
so I
9 matches
Mail list logo
