Re: Constant blocking read repair for such a tiny table

2019-10-15 Thread Alain RODRIGUEZ
Hello Patrick, Still in trouble with this? I must admit I'm really puzzled by your issue. I have no real idea of what's going on. Would you share with us the output of: - nodetool status - nodetool describecluster - nodetool gossipinfo - nodetool tpstats Also you said the app is running for a l

Re: Elevated response times from all nodes in a data center at the same time.

2019-10-15 Thread Reid Pinchback
I’d look to see if you have compactions fronting the p99’s. If so, then go back to looking at the I/O. Disbelieve any metrics not captured at a high resolution for a time window around the compactions, like 100ms. You could be hitting I/O stalls where reads are blocked by the flushing of writ