-Question about namenode HA
谢良 2012-10-15, 03:01
Hi Todd and other HA experts,
I've two question:
1) why the zkfc is a seperate process, i mean, what's the primary design consideration that we didn't integrate zkfc features into namenode self ?
2) If i deploy CDH4.1(included QJM feature), since QJM can do fencing writer, so can i just config like this safely ?