RE: how to identify the root cause of cassandra hang

2017-10-26 Thread Meg Mara
see if your GC pauses are happening too often. Grep for GCInspector in system.log. Could be a possibility. Meg Mara From: Peng Xiao [mailto:2535...@qq.com] Sent: Thursday, October 26, 2017 9:24 AM To: user Subject: how to identify the root cause of cassandra hang Hi, We have a cluster with

how to identify the root cause of cassandra hang

2017-10-26 Thread Peng Xiao
Hi, We have a cluster with 48 nodes configured with RACK,sometimes it's hang for even 2 minutes.the response time jump from 300ms to 15s. Could anyone please advise how to identified the root cause ? The following is from the system log INFO [Service Thread] 2017-10-26 21:45:46,796 GCInspec