cgspace-notes/content/posts/2020-03.md

title	date	author	categories
March, 2020	2020-03-02T12:31:30+02:00	Alan Orth	Notes

2020-03-02

• Update dspace-statistics-api for DSpace 6+ UUIDs
  • Tag version 1.2.0 on GitHub
• Test migrating legacy Solr statistics to UUIDs with the as-of-yet unreleased SolrUpgradePre6xStatistics.java
  • You need to download this into the DSpace 6.x source and compile it

$ export JAVA_OPTS="-Xmx1024m -Dfile.encoding=UTF-8"
$ ~/dspace63/bin/dspace solr-upgrade-statistics-6x

2020-03-03

• Skype with Peter and Abenet to discuss the CG Core survey
  • We also discussed some other CGSpace issues

2020-03-04

• Abenet asked me to add some new ILRI subjects to CGSpace
  • I updated the input-forms.xml in our 5_x-prod branch on GitHub
  • Abenet said we are changing HEALTH to HUMAN HEALTH so I need to fix those using my fix-metadata-values.py script:

$ ./fix-metadata-values.py -i 2020-03-04-fix-1-ilri-subject.csv -db dspace -u dspace -p 'fuuu' -f cg.subject.ilri -m 203 -t correct -d

• But I have not run it on CGSpace yet because we want to ask Peter if he is sure about it...
• Send a message to Macaroni Bros to ask them about their Drupal module and its readiness for DSpace 6 UUIDs

2020-03-05

• I found a very interesting comment on the Solr 8.1 guide about Java compatibility:

Lucene/Solr 7.0 was the first version that successfully passed our tests using Java 9 and higher. You should avoid Java 9 or later for Lucene/Solr 6.x or earlier.

2020-03-08

• I want to try to consolidate our yearly Solr statistics cores back into one statistics core using the solr-import-export-json tool
• I will try it on DSpace test, doing one year at a time:

$ ./run.sh -s http://localhost:8081/solr/statistics-2010 -a export -o /tmp/statistics-2010.json -k uid
$ ./run.sh -s http://localhost:8081/solr/statistics -a import -o /tmp/statistics-2010.json -k uid
$ curl -s "http://localhost:8081/solr/statistics-2010/update?softCommit=true" -H "Content-Type: text/xml" --data-binary "<delete><query>time:2010*</query></delete>"
$ ./run.sh -s http://localhost:8081/solr/statistics-2011 -a export -o /tmp/statistics-2011.json -k uid
$ ./run.sh -s http://localhost:8081/solr/statistics -a import -o /tmp/statistics-2011.json -k uid
$ curl -s "http://localhost:8081/solr/statistics-2011/update?softCommit=true" -H "Content-Type: text/xml" --data-binary "<delete><query>time:2011*</query></delete>"
$ ./run.sh -s http://localhost:8081/solr/statistics -a import -o /tmp/statistics-2012.json -k uid
$ curl -s 'http://localhost:8081/solr/statistics/select?q=time:2012*&rows=0&wt=json&indent=true' | grep numFound
  "response":{"numFound":3761989,"start":0,"docs":[]
$ curl -s 'http://localhost:8081/solr/statistics-2012/select?q=time:2012*&rows=0&wt=json&indent=true' | grep numFound
  "response":{"numFound":3761989,"start":0,"docs":[]
$ curl -s "http://localhost:8081/solr/statistics-2012/update?softCommit=true" -H "Content-Type: text/xml" --data-binary "<delete><query>time:2012*</query></delete>"

• I will do this for as many cores as I can (disk space limited) and then monitor the effect on the system and JVM memory usage
  • Exporting half years might work, using a filter query with months as a regular expression:

$ ./run.sh -s http://localhost:8081/solr/statistics-2014 -a export -o /tmp/statistics-2014-1.json -k uid -f 'time:/2014-0[1-6].*/'

• Upgrade PostgreSQL from 9.6 to 10 on DSpace Test (linode19)
  • I've been running it for one month in my local environment, and others have reported on the dspace-tech mailing list that they are using 10 and 11

# apt install postgresql-10 postgresql-contrib-10
# systemctl stop tomcat7
# pg_ctlcluster 9.6 main stop
# tar -cvzpf var-lib-postgresql-9.6.tar.gz /var/lib/postgresql/9.6
# tar -cvzpf etc-postgresql-9.6.tar.gz /etc/postgresql/9.6
# pg_ctlcluster 10 main stop
# pg_dropcluster 10 main
# pg_upgradecluster 9.6 main
# pg_dropcluster 9.6 main
# dpkg -l | grep postgresql | grep 9.6 | awk '{print $2}' | xargs dpkg -r