I've never looked at the JMX views, but mayfly-aged searchers are both 
expected AND undesirable. Every Solr commit (every persisted change to 
the index) forces creation of a fresh searcher with fresh caches. And 
the OAE does a lot more Solr commits than would normally be recommended. 
So what you're seeing reflects a known performance issue that we 
continue to work on.

Best,
Ray

On 6/14/12 10:40 AM, Berg, Alan wrote:
> Hi,
>
> Potentially a newbie question, so be warned. I am looking through JMX at a 
> stress test that loads in lots of little files to a demo version of Sakai OAE.
>
> The managed beans give lots of valid information apart for the 
> solrindexsearcher. Apparently every time a small file is uploaded or a group 
> is made a new managed bean appears and then dies quickly. This gives a very 
> fast changing view in Jconsole. Is this normal or a sign that 
> solrindexsearchers are being created and destroyed  too quickly and another 
> design pattern like a queue is needed?
>
> See screengrab, the searcher bean id is being replaced very often.
>
> Alan Berg
>
> Group Education and Research Services
> Central Computer Services
> University of Amsterdam
>
>
>
> _______________________________________________
> oae-dev mailing list
> [email protected]
> http://collab.sakaiproject.org/mailman/listinfo/oae-dev
>


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