Howdy
We have recently upgraded our DSpace instance from 1.7.1 to 1.8.2 and were
having SOLR issues.
We had previously been using SOLR statistics without issue, but the module
broke and was returning a blank page in XMLUI. Attempts to run the "dspace
stats-util" command (with -o or -b flags) would also result in a
"org.apache.solr.common.SolrException: Internal Server Error" and partial stack
trace. We have double checked our configuration settings (dspace and solr) and
found them to be correct. We also saw similar issues brought up on the mailing
list without resolution.
The problem turned out to be the schema definitions attached to the internal
SOLR configs. The addition of the bundleName field to the schema in 1.8 caused
our issue with viewing statistics generated by 1.7 in a new 1.8 instance.
We recommend adding an extra set of instructions to the end of the wiki page:
https://wiki.duraspace.org/display/DSDOC18/Upgrading+From+1.7.x+to+1.8.x
telling folks to copy the new schema.xml files from source into their existing
SOLR data directories:
cp [dspace-build]/dspace/solr/statistics/conf/schema.xml
[dspace-install]/solr/statistics/conf/schema.xml
and
cp [dspace-build]/dspace/solr/statistics/conf/schema.xml
[dspace-install]/solr/search/conf/schema.xml
-Alex
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