Re: high i/o usage on one node

2012-07-16 Thread aaron morton
Is you client balancing between the two nodes ? Heavy writes at CL ONE could result in nodes dropping messages and having an unbalanced load. Are you sure there is nothing else running on the machines ? Just for fun have you turned off GC logging to see the impact ? Is there swapping going on

high i/o usage on one node

2012-07-16 Thread feedly team
I am having an issue where one node of a 2 node cluster seems to be using much more I/O than the other node. the cassandra read/write requests seem to be balanced, but iostat shows the data disk to be maxed at 100% utilization for one machine and <50% for the other. r/s to be about 3x greater on th