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content/posts/2023-12.md

@@ -185,4 +185,87 @@ dspace=*# COMMIT;
 COMMIT
 ```
 
+## 2023-12-25
+
+- Looking into [Solr backups](https://solr.apache.org/guide/8_11/making-and-restoring-backups.html)
+  - Since we are not running in Solr Cloud mode we need to use the replication endpoint for Solr standalone
+  - This works:
+
+```console
+$ curl 'http://localhost:8983/solr/statistics/replication?command=backup'
+{
+  "responseHeader":{
+    "status":0,
+    "QTime":26},
+  "status":"OK"}
+```
+
+- Then I saw the size of the snapshot reach the size of the index...
+
+```console
+# du -sh /var/solr/data/configsets/statistics/data/*
+22G     /var/solr/data/configsets/statistics/data/index
+16G     /var/solr/data/configsets/statistics/data/snapshot.20231225074111671
+4.0K    /var/solr/data/configsets/statistics/data/snapshot_metadata
+# du -sh /var/solr/data/configsets/statistics/data/*
+22G     /var/solr/data/configsets/statistics/data/index
+20G     /var/solr/data/configsets/statistics/data/snapshot.20231225074111671
+4.0K    /var/solr/data/configsets/statistics/data/snapshot_metadata
+# du -sh /var/solr/data/configsets/statistics/data/*
+22G     /var/solr/data/configsets/statistics/data/index
+21G     /var/solr/data/configsets/statistics/data/snapshot.20231225074111671
+4.0K    /var/solr/data/configsets/statistics/data/snapshot_metadata
+# du -sh /var/solr/data/configsets/statistics/data/*
+22G     /var/solr/data/configsets/statistics/data/index
+22G     /var/solr/data/configsets/statistics/data/snapshot.20231225074111671
+4.0K    /var/solr/data/configsets/statistics/data/snapshot_metadata
+```
+
+- Then I deleted the core and restored from the snapshot backup:
+
+```console
+$ curl http://localhost:8983/solr/statistics/update -H "Content-type: text/xml" --data-binary '<delete><query>*:*</query></delete>'
+$ curl http://localhost:8983/solr/statistics/update -H "Content-type: text/xml" --data-binary '<commit />'
+$ curl 'http://localhost:8983/solr/statistics/replication?command=restore&name=statistics'
+```
+
+- Interestingly the import worked fine, but created a new data index:
+
+```console
+# du -sh /var/solr/data/configsets/statistics/data/*
+4.0K    /var/solr/data/configsets/statistics/data/index.properties
+22G     /var/solr/data/configsets/statistics/data/restore.20231225154626463
+4.0K    /var/solr/data/configsets/statistics/data/snapshot_metadata
+22G     /var/solr/data/configsets/statistics/data/snapshot.statistics
+```
+
+- Not sure the implications of that—Solr uses the data just fine
+- I can surely use this for atomic Solr backups
+
+## 2023-12-27
+
+- Delete duplicate metadata as described in my DSpace issue from last year: https://github.com/DSpace/DSpace/issues/8253
+- Do some other metadata cleanups on CGSpace
+  - I also looked up our DOIs on Crossref to get some missing abstracts and correct licenses and dates
+- Some minor work on the CGSpace DSpace 7 theme to fix the navbar on mobile
+- Some work on the IFPRI ISNAR archive
+
+## 2023-12-28
+
+- I started porting the [cgspace-java-helpers](https://github.com/ilri/cgspace-java-helpers) to DSpace 7
+- Some work on the IFPRI ISNAR archive
+  - I ended up going through most of the PDFs to get better dates and abstracts
+
+## 2023-12-29
+
+- I created a new Hetzner server to replace the current DSpace 6 CGSpace next week when we migrate to DSpace 7
+- Interesting, I haven't checked for content pointing to legacy domains in several years (!)
+  - `inurl:mahider.cgiar.org`: 0 results on Google!
+  - `inurl:mahider.ilri.org`: 2,100 results on Google
+  - `inurl:mahider.ilri.org inurl:https`: 2 results on Google (!)
+  - `inurl:dspace.ilri.org:` 1,390 results on Google
+  - `inurl:dspace.ilri.org inurl:https`: 0 results on Google (!)
+- So it seems I can do away with the HTTPS virtual hosts finally
+  - Well my current certificates expired on 2021-02-13 and nobody noticed... so...
+
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