Difference between revisions of "SUNScholar/Optimisations"

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==Introduction==
 
==Introduction==
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This wiki page details the major optimisations of the system performed at Stellenbosch University in order to create a <font color="red">'''truly production optimised version of DSpace'''</font>.
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This wiki page details the major optimisations of the system performed at Stellenbosch University in an attempt to create a <big><font color="red">'''truly production optimised version of DSpace'''</font></big>.
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===Recommended===
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#[[SUNScholar/Install_Ubuntu/S01|Server Hardware]]
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#[[SUNScholar/Optimisations/Tomcat|Tomcat Webapp Server]]
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#[[SUNScholar/Optimisations/Database|ANSI SQL Database]]
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#[[SUNScholar/Optimisations/Java|Java Virtual Machine]]
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#[[SUNScholar/Optimisations/Logs|Reduce system log sizes]]
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#[[SUNScholar/Optimisations/Bitstream checker|Bitstream checker]]
  
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==[[SUNScholar/Optimisations/Java|Java]]==
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===Optional===
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Click on the heading above.
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#[[SUNScholar/Optimisations/Ubuntu Software|Ubuntu Software]]
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#[[SUNScholar/Optimisations/Monit service|Monit service]]
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#[[SUNScholar/Troubleshooting|Troubleshooting]]
  
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==[[SUNScholar/Optimisations/Tomcat|Tomcat]]==
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===YouTube Video===
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Click on the heading above.
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<html5media width="560" height="315">https://www.youtube.com/watch?v=pGhbtULhNJA</html5media>
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==[[SUNScholar/Optimisations/Logs|Reduce system log sizes]]==
 
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Click on the heading above.
 
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==[[SUNScholar/Optimisations/Error Logs|Email error logs]]==
 
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Click on the heading above
 
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==XMLUI==
 
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*Use XMLUI exclusively to reduce the memory load.
 
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http://wiki.lib.sun.ac.za/index.php/SUNScholar/Install_DSpace/S08
 
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==Database==
 
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*Fix "browse index" configuration to reduce the PostgreSQL database server query load.
 
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http://wiki.lib.sun.ac.za/index.php/SUNScholar/Browse_Indexes
 
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Vacumn the database regularly
 
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http://wiki.lib.sun.ac.za/index.php/SUNScholar/Daily_Admin
 
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==Bitstream checker==
 
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Modified bitstream checker settings as follows to reduce database size.
 
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<pre>
 
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#### Checksum Checker Settings ####
 
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# Default dispatcher in case none specified
 
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plugin.single.org.dspace.checker.BitstreamDispatcher=org.dspace.checker.SimpleDispatcher
 
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# check history retention
 
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checker.retention.default=1y
 
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checker.retention.CHECKSUM_MATCH=2w
 
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</pre>
 
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;References
 
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*https://wiki.duraspace.org/display/DSDOC4x/Validating+CheckSums+of+Bitstreams
 
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==Monit monitor service==
 
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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, added to the bottom of the '''/etc/monit/monitrc''' file.
 
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<pre>
 
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dspace@ir1:/etc/monit$ sudo cat /etc/monit/monitrc
 
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set daemon  60
 
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set logfile syslog facility log_daemon
 
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set mailserver localhost
 
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set mail-format { from: monit@ez.sun.ac.za }
 
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set alert root@localhost
 
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set httpd port 2812
 
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    allow %username%:%password%
 
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check process sshd with pidfile /var/run/sshd.pid
 
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  start = "/usr/sbin/service ssh start"
 
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  stop  = "/usr/sbin/service ssh stop"
 
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  if failed port 22 protocol ssh with timeout 5 seconds then restart
 
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  alert hgibson@sun.ac.za
 
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check process tomcat6 with pidfile /var/run/tomcat6.pid
 
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  start = "/usr/sbin/service tomcat6 restart"
 
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  stop  = "/usr/sbin/service tomcat6 stop"
 
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  if failed port 80 protocol http with timeout 300 seconds then restart
 
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  alert hgibson@sun.ac.za
 
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  alert wklap@sun.ac.za
 
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</pre>
 
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All confidential information has been replaced with % signs or captial X's.
 
  
 
==References==
 
==References==
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*https://wiki.duraspace.org/display/DSDOC18/Performance+Tuning+DSpace
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*https://wiki.duraspace.org/display/DSPACE/SystemAdministrators
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*https://wiki.duraspace.org/display/DSPACE/PostgresPerformanceTuning
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*https://wiki.duraspace.org/display/DSDOC5x/Performance+Tuning+DSpace
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*https://wiki.duraspace.org/display/DSDOC4x/Performance+Tuning+DSpace
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*https://wiki.duraspace.org/display/DSDOC3x/Performance+Tuning+DSpace
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*https://wiki.duraspace.org/display/FCREPO/Performance+Testing
 
*http://www.turnkeylinux.org/tomcat
 
*http://www.turnkeylinux.org/tomcat
 
*http://www.tecmint.com/how-to-install-and-setup-monit-linux-process-and-services-monitoring-program
 
*http://www.tecmint.com/how-to-install-and-setup-monit-linux-process-and-services-monitoring-program
 
*http://www.tecmint.com/command-line-tools-to-monitor-linux-performance
 
*http://www.tecmint.com/command-line-tools-to-monitor-linux-performance
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[[Category:System Administration]]
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[[Category:Optimisations]]
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[[Category:Installation]]
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__NOTOC__

Latest revision as of 00:00, 10 June 2016

Back to After Installation Tasks

Introduction

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

Recommended

  1. Server Hardware
  2. Tomcat Webapp Server
  3. ANSI SQL Database
  4. Java Virtual Machine
  5. Reduce system log sizes
  6. Bitstream checker

Optional

  1. Ubuntu Software
  2. Monit service
  3. Troubleshooting

YouTube Video

References

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