RE: Periodically hiccups

2010-04-22 Thread Dr . Martin Grabmüller
Hello Alex, unfortunately I can not help with your problem, just one hint: > - RecentReadLatencyMicros and RecentWriteLatencyMicros are super high > for StorageProxy, as well as every column family in JMX: up > to 43 s and > 9s (see screenshot). However, in cfstats, they are quite small. Rem

Periodically hiccups

2010-04-22 Thread Alex Li
Hello, We recently deployed a cluster of 5 Cassandra nodes into production, and ran into big problems with periodically hiccups (individual node goes down, high CPU, client connection timeout). It was terrible with 0.5 (one hiccups every 5-10 minutes), today we upgraded to 0.6.1, it happens