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Update notes for 2019-07-01

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Alan Orth
2019-07-01 18:54:35 +03:00
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@ -8,7 +8,63 @@ tags: ["Notes"]
## 2019-07-01
- Create an "AfricaRice books and book chapters" collection on CGSpace for AfricaRice
- Last month Sisay asked why the following "most popular" statistics link for a range of months in 2018 works for the CIAT community on DSpace Test, but not on CGSpace:
- [DSpace Test](https://dspacetest.cgiar.org/handle/10568/35697/most-popular/item#simplefilter=custom&time_filter_end_date=01%2F12%2F2018)
- [CGSpace](https://cgspace.cgiar.org/handle/10568/35697/most-popular/item#simplefilter=custom&time_filter_end_date=01%2F12%2F2018)
- Abenet had another similar issue a few days ago when trying to find the stats for 2018 in the RTB community
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- If I change the parameters to 2019 I see stats, so I'm really thinking it has something to do with the sharded yearly Solr statistics cores
- I checked the Solr admin UI and I see all Solr cores loaded, so I don't know what it could be
- When I check the Atmire content and usage module it seems obvious that there is a problem with the old cores because I dont have anything before 2019-01
![Atmire CUA 2018 stats missing](/cgspace-notes/2019/07/atmire-cua-2018-missing.png)
- I don't see anyone logged in right now so I'm going to try to restart Tomcat and see if the stats are accessible after Solr comes back up
- I decided to run all system updates on the server (linode18) and reboot it
- After rebooting Tomcat came back up, but the the Solr statistics cores were not all loaded
- The error is always (with a different core):
```
org.apache.solr.common.SolrException: Error CREATEing SolrCore 'statistics-2010': Unable to create core [statistics-2010] Caused by: Lock obtain timed out: NativeFSLock@/home/cgspace.cgiar.org/solr/statistics-2010/data/index/write.lock
```
- I restarted Tomcat *ten times* and it never worked...
- I tried to stop Tomcat and delete the write locks:
```
# systemctl stop tomcat7
# find /dspace/solr/statistics* -iname "*.lock" -print -delete
/dspace/solr/statistics/data/index/write.lock
/dspace/solr/statistics-2010/data/index/write.lock
/dspace/solr/statistics-2011/data/index/write.lock
/dspace/solr/statistics-2012/data/index/write.lock
/dspace/solr/statistics-2013/data/index/write.lock
/dspace/solr/statistics-2014/data/index/write.lock
/dspace/solr/statistics-2015/data/index/write.lock
/dspace/solr/statistics-2016/data/index/write.lock
/dspace/solr/statistics-2017/data/index/write.lock
/dspace/solr/statistics-2018/data/index/write.lock
# find /dspace/solr/statistics* -iname "*.lock" -print -delete
# systemctl start tomcat7
```
- But it still didn't work!
- I stopped Tomcat, deleted the old locks, and will try to use the "simple" lock file type in `solr/statistics/conf/solrconfig.xml`:
```
<lockType>${solr.lock.type:simple}</lockType>
```
- And after restarting Tomcat it still doesn't work
- Now I'll try going back to "native" locking with `unlockAtStartup`:
```
<unlockOnStartup>true</unlockOnStartup>
```
- Now the cores seem to load, but I still see an error in the Solr Admin UI and I still can't access any stats before 2018
- I filed an [issue with Atmire](https://tracker.atmire.com/tickets-cgiar-ilri/view-ticket?id=685), so let's see if they can help
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