Can you share the logs to confirm things? Regards Ram
-----Original Message----- From: Matthias Hofschen [mailto:hofsc...@gmail.com] Sent: Wednesday, November 16, 2011 4:10 PM To: hbase-u...@hadoop.apache.org Subject: balancer stopped working Hi, we had a case today where the loadbalancer stopped working. (cloudera-cdh3-u1, 52nodes). Basically we had a hot region that we moved to another node. Shortly thereafter the regionserver of that region was stopped. In the master logs we see that master is trying to contact this regionserver to move the region. At the same time we had about 1000 regions missing because of the stopped regionserver. These where not assigned to another regionserver. I suspect that the the load balancer on the master machine was blocked by trying to move the one region which was not possible. We then restarted the master which solved the problem. Is this a known problem, should I log an issue? I do have a stacktrace from the master machine. Cheers Matthias
