2020-12-22 10:34:49,825 INFO XML-RPC-1 (RPCSearchHandler.java:89) - Query is: +(Protokoll*)
2020-12-22 10:34:49,825 DEBUG XML-RPC-1 (ClientSettings.java:79) - Using client key iliasschoolmaster_8484
2020-12-22 10:34:49,826 WARN XML-RPC-1 (RPCSearchHandler.java:158) - org.apache.lucene.index.IndexNotFoundException: no segments* file found in MMapDirectory@/opt/iliasdata/lucene/iliasschoolmaster_8484 lockFactory=org.apache.lucene.store.NativeFSLockFactory@fb87ea6: files: [_m.fdt, _m.fdx, _n.fdt, _n.fdx, _o.fdt, _o.fdx, write.lock]
That means, that the entry "no segments* file found" is caused by a search query I did in ILIAS, in this case the word "Protokoll". This just means, that these are the files in the index directory: files: [_m.fdt, _m.fdx, _n.fdt, _n.fdx, _o.fdt, _o.fdx, write.lock] - and mybe there is missing a segments file. And this is obviously realy the problem! The index directory of another client looks like this:
_0_1.liv _0.cfe _0.cfs _0.si _1_1.liv _1.cfe _1.cfs _1.si _2.cfe _2.cfs _2.si segments_3 write.lock
So, " segments_3" is the index file. On the other hand, the client with the lucene probvlems has only this content in his search folder:
_m.fdt _m.fdx _n.fdt _n.fdx _o.fdt _o.fdx write.lock
So, the problem is the missing index file "segments_*". This can be said to be sure. But what is the cause of that?