We're seeing RAM usage continually climb until eventually, cassandra becomes unresponsive.
The JVM isn't OOM'ing. It has only committed 14/24GB of memory. So, I am assuming that the memory usage is related to mmap'd IO. Fair assumption? I tried setting the IO mode to standard, but it seemed to be a little slower and couldn't get the machine to come back online with adequate read performance, so I set it back. I'll have to write a solid cache warming script if I'm going to try that again. Any other ideas for what might be causing the issue? Is there something I should monitor or look at next time it happens? Thanks
