Details
Minor Description
When there are no table or the RS doesn't have regions loaded the canary will output an ERROR log.
$ hbase org.apache.hadoop.hbase.tool.Canary -regionserver HOSTNAME ERROR No RegionServerInfo found, regionServerName: HOSTNAME
but this ERROR shouldn't be considered as "the region server is not up", so we probably reduce the log level to "info" or "debug". (The exit code is already notifying that the failure cause is related to "initialization" or similar)