Hi,
our bibliographic index (~20M entries) runs fine with Solr 4.10.3
With Solr 5.3 faceted searching is constantly incredibly slow (~ 20
seconds)
Output of 'debugQuery':
<lst name="process"><double name="time">17705.0</double>
<lst name="query"><double name="time">2.0</double></lst>
<lst name="facet"><double name="time">17590.0</double></lst> !!!!!!
<lst name="debug"><double name="time">111.0</double></lst>
The 'fieldValueCache' seems to be unused (no inserts nor lookups) in
Solr 5.3. In Solr 4.10 the 'fieldValueCache' is in heavy use with a
cumulative_hitratio of 1.
- the behavior is the same, running Solr5.3 on a copy of the old index
(luceneMatch=4.6) or a newly build index
- using 'facet.method=enum' makes no remarkable difference
- declaring 'docValues' (with reindexing) makes no remarkable difference
- 'softCommit' isn't used
My enviroment is
OS: Solaris 5.11 on AMD64
JDK: 1.8.0_25 and 1.8.0_60 (same behavior)
JavaOpts: -Xmx 10g -XX:+UseG1GC -XX:+AggressiveOpts
-XX:+UseLargePages -XX:LargePageSizeInBytes=2m
Any help/advice is welcome
Uwe
