The other caches (filterCache, queryResultCache) only have meaning for the current searcher opened. Whenever a soft or hard-commit-with-opensearcher-true, those caches are all reset to 0 and stats start accumulating until the _next_ commit. So depending on when you look you might see a cache that's just been cleared because a new searcher has been opened or one that's been in use for a long time.
However, there is a cumulative section for those two caches. The cumulative section accumulates the statistics since Solr was started. That section should be much more stable on a system that's been running for a while. Of course those all start out at zero when you start Solr. Whether the HDFS cache stats follow the same pattern, I don't know. Best, Erick On Mon, Sep 24, 2018 at 3:22 PM Jean-Marc Spaggiari <jean-m...@spaggiari.org> wrote: > > It might be similar to the other cache.. Do you have any pointer the the > LRUCache documentation? I want to see what kind of metrics it uses and see > if it's similar or not > to solr/core/src/java/org/apache/solr/core/HdfsDirectoryFactory.java,,, > > Le lun. 24 sept. 2018 à 18:04, Shawn Heisey <apa...@elyograg.org> a écrit : > > > On 9/24/2018 3:43 PM, Jean-Marc Spaggiari wrote: > > > Thanks for taking a look. My indexes are on HDFS. And I configured all > > the > > > solr parameters for that. The "shard page" is when I click on a SOLR > > server > > > to go to the UI, then in the dropdown on the left I select a shard (a > > > leader one), then I click on "plugins/stats". And then I open > > > "HdfsBlockCache". There from time to time I can see some numbers, but > > when > > > I keep refreshing it comes back to 0 always, and I have no clues what is > > > into the cache, or even if it just work :( > > > > Apologies for jumping into a world where I can't offer any help. I have > > never used HDFS, so things like this that are related to it are an > > unknown to me. I understand most of the other things in Plugins/Stats, > > but not that one. > > > > Thanks, > > Shawn > > > >
