Hi All
What are your URL's or website address's ?
On 01/10/2010 18:59, Pottinger, Hardy J. wrote:
Doh! I just noticed I forgot to include the total number of unique titles in
our repository: ~7,600.
And thanks to Keith Gilbertson for the replies. I've dug through catalina.out
for the past few days, and the only errors we're seeing is typical broken pipe
warnings, from users moving on before a thread finishes. Hmm... maybe it's safe
to scale back the nightly tomcat reboot to a weekly reboot?
--Hardy
-----Original Message-----
From: Pottinger, Hardy J. [mailto:pottinge...@umsystem.edu]
Sent: Thursday, September 30, 2010 5:36 PM
To: dspace-tech@lists.sourceforge.net
Subject: Re: [Dspace-tech] DSpace Setup
1. Contact Info: Hardy Pottinger, University of Missouri (MOspace)
(message sent from my main e-mail address, use that).
2.a. DSpace 1.6.2 (XMLUI) with local mods for user interface, and
Shibboleth special groups handling
1 assetstore at 1TB, 35GB used (big plans! really!)
Number of items:
2.b. Oracle Database 10g Enterprise Edition Release 10.2.0.4.0, running
on another server (unknown spec)
db.maxconnections = 50 (anything less than 50 is unstable)
db.maxwait = 5000
db.maxidle = 0 (idle connections are nailed by the firewall on the
Oracle server, sysadmins will not change)
2.c. All RHEL-provided, Tomcat 5.5.23, running behind Apache 2.2.3 via
mod_proxy
2.d. DSpace and Tomcat are on one server, Oracle db is on a shared
server.
Server: Dell PowerEdge 2950
Memory size: 8110 MB
CPUs: 4 x Intel Xeon 5160 @ 3.00 GHz
OS: Red Hat Enterprise Linux Server release 5.5 (kernel 2.6.18-
194.3.1.el5PAE)
2.e. JAVA_OPTS="-Xmx512M -Xms256M" (this will likely change soon, need
to bump up PermGen)
3. Back when we were running on DSpace 1.5.1, after a period of about
24-36 hours of uptime, Tomcat became unavailable. Apache reported 503:
service unavailable. Looking at a dump after killing all Java processes,
it appeared that all database connections were unavailable. Changing the
db.maxconnections and db.maxidle settings (see above) was helpful, but
we are proactively rebooting tomcat and apache every night, to "clean
out the cobwebs". Have not disabled the nightly reboot since the upgrade
to 1.6.2, so do not have current data/log files. I'm willing to try
other config settings. I'm pretty sure I saw an interesting looking
patch that drops database connections (mainly for streaming situations)
that I can't seem to find right now, but might help this particular
stability issue.
4. Volunteer to help? Of course! I am a fledgling Java developer,
reasonably competent application manager, and working with XSLT only
makes me want to cry a little bit, nowadays. :-) We have a development
server with a snapshot of our live repository, and are willing to do
load testing, run a profiler, whatever it takes to help. We're certainly
not experts in any the various tech running under the hood of DSpace,
but keeping our repository running smoothly is our main job, and we aim
to please. You may use my address as the main contact, but we have two
more developers here who are willing to pitch in.
--Hardy
-----Original Message-----
From: George Stanley Kozak [mailto:g...@cornell.edu]
Sent: Wednesday, September 29, 2010 11:28 AM
To: dspace-tech@lists.sourceforge.net
Subject: [Dspace-tech] DSpace Setup
Hi...
Based on Tim Donohue's suggestion to share configuration and setup
information, here is Cornell University's Dspace configuration:
1. Server: Sun sun4v T5140
Memory size: 65312 Megabytes (4 CPUs)
2. Running DSpace 1.6.2 (JSPUI) with local mods for User Interface,
Embargo, and Refworks.
db.maxconnections = 50
db.maxwait = 5000
db.maxidle = 5
2 assetstores at 300GB each (using currently 323 GB)
Number of items: 14,960
Number of Communities/Collections: 789
3. Java 1.5.0_24
4. Apache 2.29 running mod_jk to tomcat
5. Tomcat 5.5.26
JAVA_OPTS="-server -Xms1024m -Xmx2048m -Xmn64m
-Dfile.encoding=UTF-8
-XX:+UseParallelGC -verbose:gc
-Xloggc:/dspace/dspace/log/gc.log
-XX:+HeapDumpOnOutOfMemoryError
-XX:PermSize=1024m -XX:MaxPermSize=1024m
-XX:-UseGCOverheadLimit"
6. PostGreSQL 8.3
max_connections = 300
shared_buffers = 32MB
max_fsm_pages = 204800
Though we experienced some performance problems in the past, that
seemed
to disappear after we went to DSpace 1.5.2.
George Kozak
Digital Library Specialist
Cornell University Library Information Technologies (CUL-IT)
501 Olin Library
Cornell University
Ithaca, NY 14853
607-255-8924
----------------------------------------------------------------------
--
------
Start uncovering the many advantages of virtual appliances
and start using them to simplify application deployment and
accelerate your shift to cloud computing.
http://p.sf.net/sfu/novell-sfdev2dev
_______________________________________________
DSpace-tech mailing list
DSpace-tech@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/dspace-tech
------------------------------------------------------------------------
------
Start uncovering the many advantages of virtual appliances
and start using them to simplify application deployment and
accelerate your shift to cloud computing.
http://p.sf.net/sfu/novell-sfdev2dev
_______________________________________________
DSpace-tech mailing list
DSpace-tech@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/dspace-tech
------------------------------------------------------------------------------
Start uncovering the many advantages of virtual appliances
and start using them to simplify application deployment and
accelerate your shift to cloud computing.
http://p.sf.net/sfu/novell-sfdev2dev
_______________________________________________
DSpace-tech mailing list
DSpace-tech@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/dspace-tech
--
Hilton Gibson
Systems Administrator
JS Gericke Library
Room 1053
Stellenbosch University
Private Bag X5036
Stellenbosch
7599
South Africa
Tel: +27 21 808 4100 | Cell: +27 84 646 4758
"Simplicity is the ultimate sophistication"
Leonardo da Vinci
------------------------------------------------------------------------------
Start uncovering the many advantages of virtual appliances
and start using them to simplify application deployment and
accelerate your shift to cloud computing.
http://p.sf.net/sfu/novell-sfdev2dev
_______________________________________________
DSpace-tech mailing list
DSpace-tech@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/dspace-tech
