You are viewing a plain text version of this content. The canonical link for it is here.
Posted to solr-user@lucene.apache.org by Bojan Šmid <bo...@gmail.com> on 2018/09/06 16:16:48 UTC

Solr 7.4.0 - bug in JMX cache stats?

Hi,

  it seems the format of cache mbeans changed with 7.4.0.  And from what I
see similar change wasn't made for other mbeans, which may mean it was
accidental and may be a bug.

  In Solr 7.3.* format was (each attribute on its own, numeric type):

mbean:
solr:dom1=core,dom2=gettingstarted,dom3=shard1,dom4=replica_n1,category=CACHE,scope=searcher,name=filterCache

attributes:
      lookups java.lang.Long = 0
      hits java.lang.Long = 0
      cumulative_evictions java.lang.Long = 0
      size java.lang.Long = 0
      hitratio java.lang.Float = 0.0
      evictions java.lang.Long = 0
      cumulative_lookups java.lang.Long = 0
      cumulative_hitratio java.lang.Float = 0.0
      warmupTime java.lang.Long = 0
      inserts java.lang.Long = 0
      cumulative_inserts java.lang.Long = 0
      cumulative_hits java.lang.Long = 0


  With 7.4.0 there is a single attribute "Value" (java.lang.Object):

mbean:
solr:dom1=core,dom2=gettingstarted,dom3=shard1,dom4=replica_n1,category=CACHE,scope=searcher,name=filterCache

attributes:
      Value java.lang.Object = {lookups=0, evictions=0,
cumulative_inserts=0, cumulative_hits=0, hits=0, cumulative_evictions=0,
size=0, hitratio=0.0, cumulative_lookups=0, cumulative_hitratio=0.0,
warmupTime=0, inserts=0}


  So the question is - was this intentional change or a bug?

  Thanks,

    Bojan

Re: Solr 7.4.0 - bug in JMX cache stats?

Posted by Andrzej Białecki <ab...@getopt.org>.
Hi Bojan,

This will be fixed in the upcoming 7.5.0 release. Thank you for reporting this!

> On 6 Sep 2018, at 18:16, Bojan Šmid <bo...@gmail.com> wrote:
> 
> Hi,
> 
>  it seems the format of cache mbeans changed with 7.4.0.  And from what I
> see similar change wasn't made for other mbeans, which may mean it was
> accidental and may be a bug.
> 
>  In Solr 7.3.* format was (each attribute on its own, numeric type):
> 
> mbean:
> solr:dom1=core,dom2=gettingstarted,dom3=shard1,dom4=replica_n1,category=CACHE,scope=searcher,name=filterCache
> 
> attributes:
>      lookups java.lang.Long = 0
>      hits java.lang.Long = 0
>      cumulative_evictions java.lang.Long = 0
>      size java.lang.Long = 0
>      hitratio java.lang.Float = 0.0
>      evictions java.lang.Long = 0
>      cumulative_lookups java.lang.Long = 0
>      cumulative_hitratio java.lang.Float = 0.0
>      warmupTime java.lang.Long = 0
>      inserts java.lang.Long = 0
>      cumulative_inserts java.lang.Long = 0
>      cumulative_hits java.lang.Long = 0
> 
> 
>  With 7.4.0 there is a single attribute "Value" (java.lang.Object):
> 
> mbean:
> solr:dom1=core,dom2=gettingstarted,dom3=shard1,dom4=replica_n1,category=CACHE,scope=searcher,name=filterCache
> 
> attributes:
>      Value java.lang.Object = {lookups=0, evictions=0,
> cumulative_inserts=0, cumulative_hits=0, hits=0, cumulative_evictions=0,
> size=0, hitratio=0.0, cumulative_lookups=0, cumulative_hitratio=0.0,
> warmupTime=0, inserts=0}
> 
> 
>  So the question is - was this intentional change or a bug?
> 
>  Thanks,
> 
>    Bojan



—

Andrzej Białecki