Index Writer, RawPostingList and Memory Management

2010-06-04 Thread Shay Banon
Hi, I have a question on how IndexWriter manages its memory when it comes to RawPostingList. Its pretty late, so sorry if the question is obvious, but the question is when does the RawPostingList array gets reclaimed or shrinked? I assume they get factored in the ram balancing process, but, is t

Re: Monitoring low level IO

2010-06-04 Thread Otis Gospodnetic
Ah, there is another one I came across several months back - http://wiki.sdn.sap.com/wiki/display/Java/JPicus. Otis Sematext :: http://sematext.com/ :: Solr - Lucene - Nutch Lucene ecosystem search :: http://search-lucene.com/ - Original Message > From: Otis Gospodnetic > To:

RE: Monitoring low level IO

2010-06-04 Thread Feltin_Thierry
If you are running with a Sun JVM 1.6, one possible way is to monitor the low level JVM java IO calls using BTrace (See http://kenai.com/projects/btrace/pages/Home). This is kind of lightweight custom java profiler. It's quite easy to setup but will require that you know what IO calls are inv