CGSpace Notes

Documenting day-to-day work on the CGSpace repository.

February, 2018

2018-02-01

  • Peter gave feedback on the dc.rights proof of concept that I had sent him last week
  • We don’t need to distinguish between internal and external works, so that makes it just a simple list
  • Yesterday I figured out how to monitor DSpace sessions using JMX
  • I copied the logic in the jmx_tomcat_dbpools provided by Ubuntu’s munin-plugins-java package and used the stuff I discovered about JMX in 2018-01

DSpace Sessions

  • Run all system updates and reboot DSpace Test
  • Wow, I packaged up the jmx_dspace_sessions stuff in the Ansible infrastructure scripts and deployed it on CGSpace and it totally works:
# munin-run jmx_dspace_sessions
v_.value 223
v_jspui.value 1
v_oai.value 0

2018-02-03

$ ./delete-metadata-values.py -i /tmp/2018-02-03-Affiliations-12-deletions.csv -f cg.contributor.affiliation -m 211 -d dspace -u dspace -p 'fuuu'
$ ./fix-metadata-values.py -i /tmp/2018-02-03-Affiliations-1116-corrections.csv -f cg.contributor.affiliation -t correct -m 211 -d dspace -u dspace -p 'fuuu'
  • Then I started a full Discovery reindex:
$ time schedtool -D -e ionice -c2 -n7 nice -n19 [dspace]/bin/dspace index-discovery -b
  • Generate a new list of affiliations for Peter to sort through:
dspace=# \copy (select distinct text_value, count(*) as count from metadatavalue where metadata_field_id = (select metadata_field_id from metadatafieldregistry where element = 'contributor' and qualifier = 'affiliation') AND resource_type_id = 2 group by text_value order by count desc) to /tmp/affiliations.csv with csv;
COPY 3723
  • Oh, and it looks like we processed over 3.1 million requests in January, up from 2.9 million in December:
# time zcat --force /var/log/nginx/* | grep -cE "[0-9]{1,2}/Jan/2018"
3126109

real    0m23.839s
user    0m27.225s
sys     0m1.905s