MAX_HEAP_SIZE="500M" HEAP_NEWSIZE="100M" That is a very small amount of memory for java, you are probably going to have problems. Take a look at reducing these settings in cassandra.yaml to reduce the amount of memory used.
memtable_total_space_in_mb memtable_flush_queue_size in_memory_compaction_limit_in_mb concurrent_compactors You may also find this useful https://github.com/pcmanus/ccm Cheers ----------------- Aaron Morton Freelance Developer @aaronmorton http://www.thelastpickle.com On 28/02/2012, at 6:50 AM, Aditya Gupta wrote: > I'm running a 4 nodes cassandra cluster of VMware ubuntu instances each 768MB > memory (on a single machine for development purposes). I need to reduce heap > size appropriately as my nodes have been crashing at times with OOMs. How do > I configure for this ? I think I would need to make some tweaks with > MAX_HEAP_SIZE & HEAP_NEWSIZE in cassandra-env.sh !? but I not sure what > should be the correct values I should put here for my case. > > What would have been the values for these parameters in case I had just 512mb > for each node?
