I recently upgraded JIRA from 5.2.11 to JIra 6.4.11.
At the end of the migration, everything seems to be ok.
index was successful.
Then I installed some plugins such as easy bi and rmsis.
Then it was impossible to reindex.
The errors are like this one :
2017-01-14 19:00:07,757 IssueIndexer:thread-5 WARN sat 1127x106x1 1a7ag5f 10.51.9.120 /secure/admin/IndexReIndex.jspa [atlassian.jira.index.AccumulatingResultBuilder] Indexing failed for Issue - '739804'
2017-01-14 19:00:07,757 IssueIndexer:thread-5 WARN sat 1127x106x1 1a7ag5f 10.51.9.120 /secure/admin/IndexReIndex.jspa [atlassian.jira.index.AccumulatingResultBuilder] java.io.FileNotFoundException: /data/jira/jiraatgl6/home/caches/indexes/issues/_bnbl.cfs (No such file or directory)
Then I cleared the cache, reindex again but the result is never the same, sometimes it works and sometimes not. The % is sometimes different.
I uninstalled the 2 plugins, same result whereas it worked once.
The filesystem is obviously not full.
On this server, Jira5 is still running and reindex is always ok.
Please help !