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From Simon Rosenthal <>
Subject Re: unloading a solr core doesn't free any memory
Date Mon, 08 Feb 2010 16:44:26 GMT
What Garbage Collection parameters is the JVM using ?   the memory will not
always be freed immediately after an event like unloading a core or starting
a new searcher.

2010/2/8 Tim TerlegÄrd <>

> To me it doesn't look like unloading a Solr Core frees the memory that
> the core has used. Is this how it should be?
> I have a big index with 50 million documents. After loading a core it
> takes 300 MB RAM. After a query with a couple of sort fields Solr
> takes about 8 GB RAM. Then I unload (CoreAdminRequest.unloadCore) the
> core. The core is not shown in /solr/ anymore. Solr still takes 8 GB
> RAM. Creating new cores is super slow because I have hardly any memory
> left. Do I need to free the memory explicitly somehow?
> /Tim

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