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From Yang <>
Subject what is taking up my JVM heap space?
Date Fri, 05 Aug 2011 02:38:57 GMT
I ran my cassandra cluster on one node, inserted about 500000 rows,
each about 400 bytes, then the heap went up to 800MB, and constantly
goes into full GC. I guessed that the memtable was probably taking a
lot of space, so I did a node tool flush, so that
all memtable are changed to 0. after this, the heap came down a bit,  to 500MB.

but I thought it should be close to 0 right after the flush?? or else
what is taking up the space?
I'm still trying to look at the hprof file to figure out, but it seems
difficult too


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