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Add notes for 2020-02-06

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Alan Orth
2020-02-06 10:01:17 +02:00
parent 624dc53c3e
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@ -195,13 +195,16 @@ $ git rebase -i upstream/dspace-6_x
$ time schedtool -D -e ~/dspace63/bin/dspace index-discovery -b
schedtool -D -e ~/dspace63/bin/dspace index-discovery -b 3771.78s user 93.63s system 41% cpu 2:34:19.53 total
schedtool -D -e ~/dspace63/bin/dspace index-discovery -b 3360.28s user 82.63s system 38% cpu 2:30:22.07 total
schedtool -D -e ~/dspace63/bin/dspace index-discovery -b 4678.72s user 138.87s system 42% cpu 3:08:35.72 total
schedtool -D -e ~/dspace63/bin/dspace index-discovery -b 3334.19s user 86.54s system 35% cpu 2:41:56.73 total
```
- DSpace 5.8 was taking about 1 hour (or less on this laptop), so this is 2.5x longer!
- DSpace 5.8 was taking about 1 hour (or less on this laptop), so this is 2-3 times longer!
```
$ time schedtool -D -e ~/dspace/bin/dspace index-discovery -b
schedtool -D -e ~/dspace/bin/dspace index-discovery -b 299.53s user 69.67s system 20% cpu 30:34.47 total
schedtool -D -e ~/dspace/bin/dspace index-discovery -b 270.31s user 69.88s system 19% cpu 29:01.38 total
```
- Checking out the DSpace 6.x REST API query client
@ -217,4 +220,35 @@ schedtool -D -e ~/dspace/bin/dspace index-discovery -b 299.53s user 69.67s syst
- After that the statlets were working properly...
- Run all system updates on DSpace Test (linode19) and restart it
## 2020-02-06
- I sent a mail to the dspace-tech mailing list asking about slow Discovery indexing speed in DSpace 6
- I destroyed my PostgreSQL 9.6 containers and re-created them using PostgreSQL 10 to see if there are any speedups with DSpace 6.x:
```
$ podman pull postgres:10-alpine
$ podman run --name dspacedb10 -v dspacedb_data:/var/lib/postgresql/data -e POSTGRES_PASSWORD=postgres -p 5432:5432 -d postgres:10-alpine
$ createuser -h localhost -U postgres --pwprompt dspacetest
$ createdb -h localhost -U postgres -O dspacetest --encoding=UNICODE dspacetest
$ createdb -h localhost -U postgres -O dspacetest --encoding=UNICODE dspace63
$ psql -h localhost -U postgres -c 'alter user dspacetest superuser;'
$ pg_restore -h localhost -U postgres -d dspacetest -O --role=dspacetest -h localhost ~/Downloads/cgspace_2020-02-06.backup
$ pg_restore -h localhost -U postgres -d dspace63 -O --role=dspacetest -h localhost ~/Downloads/cgspace_2020-02-06.backup
$ psql -h localhost -U postgres -f ~/src/git/DSpace/dspace/etc/postgres/update-sequences.sql dspacetest
$ psql -h localhost -U postgres -f ~/src/git/DSpace/dspace/etc/postgres/update-sequences.sql dspace63
$ psql -h localhost -U postgres -c 'alter user dspacetest nosuperuser;'
$ psql -h localhost -U postgres dspace63
dspace63=# CREATE EXTENSION pgcrypto;
dspace63=# DELETE FROM schema_version WHERE version IN ('5.0.2015.01.27', '5.6.2015.12.03.2', '5.6.2016.08.08', '5.0.2017.04.28', '5.0.2017.09.25', '5.8.2015.12.03.3');
dspace63=# DROP VIEW eperson_metadata;
dspace63=# \q
```
- I purged ~33,000 hits from the "Jersey/2.6" bot in CGSpace's statistics using my `check-spider-hits.sh` script:
```
$ ./check-spider-hits.sh -d -p -f /tmp/jersey -s statistics -u http://localhost:8081/solr
$ for year in 2018 2017 2016 2015; do ./check-spider-hits.sh -d -p -f /tmp/jersey -s "statistics-${year}" -u http://localhost:8081/solr; done
```
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