SUNScholar/Optimisations

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Back to After Installation Tasks

Introduction

This wiki page details the major optimisations of the system performed at Stellenbosch University in order to create a truly production optimised version of DSpace.

Java

Click on the heading above.

Tomcat

Click on the heading above.

Reduce system log sizes

Click on the heading above.

Email error logs

Click on the heading above

XMLUI

  • Use XMLUI exclusively to reduce the memory load.
http://wiki.lib.sun.ac.za/index.php/SUNScholar/Install_DSpace/S08

Database

  • Fix "browse index" configuration to reduce the PostgreSQL database server query load.
http://wiki.lib.sun.ac.za/index.php/SUNScholar/Indexes#Browse_Indexes

Vacumn the database regularly 

http://wiki.lib.sun.ac.za/index.php/SUNScholar/Daily_Admin#.22postgres.22_crontab

Bitstream checker

Modified bitstream checker settings as follows to reduce database size. 

#### Checksum Checker Settings ####
# Default dispatcher in case none specified
plugin.single.org.dspace.checker.BitstreamDispatcher=org.dspace.checker.SimpleDispatcher

# check history retention
checker.retention.default=1y
checker.retention.CHECKSUM_MATCH=2w
References

Monit monitor service

In case the Tomcat service halts or hangs due to whatever... , I installed monit to restart the service and then alert me. See an example of my config below. 

dspace@ir1:/etc/monit$ sudo cat /etc/monit/monitrc
set daemon  60
set logfile syslog facility log_daemon
set mailserver localhost
set mail-format { from: XXXX@XX.XXX.XX.XX }
set alert XXXX@localhost
set httpd port 2812
     allow %user%:%password%

check process sshd with pidfile /var/run/sshd.pid
   start program  "/etc/init.d/ssh start"
   stop program  "/etc/init.d/ssh stop"
   if failed port 22 protocol ssh then restart
   
check host sunscholar with address scholar.sun.ac.za
   start program = "/etc/init.d/tomcat6 restart"
   stop program  = "/etc/init.d/tomcat6 stop"
   if failed port 80 proto http then restart
   alert XXXX@XXX.XX.XX
   alert XXXX@XXX.XX.XX

All confidential information has been replaced with % signs or captial X's.

References

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