Got it working on my cluster. Thanks Lars and Eric.   Cheers, Anand ... View more

Hi Eric,   > COORDINATOR_ONLY impala daemon will not perform data reads, rather it only coordinates query execution by distributing jobs to executors.   That's my understanding as well and that's why this failure was a surprise to me.   > Why do you need to enable this for COORDINATOR_ONLY impala daemons? Or is it that all your COORDINATOR_ONLY impala daemons fail with this error?   Yes, only the COORDINATOR_ONLY impala daemons fails. Other work fines.   > Also, have you checked whether socket /var/run/hdfs-sockets/dn exist on that impala daemon host?   > /var/run/hdfs-sockets/dn does not exists on COORDINATOR_ONLY impala daemon hosts as there is no DataNode  on them.   Regards, Anand ... View more

dfs.client.read.shortcircuit was not enabled for HDFS Gateway. I enabled it and then deployed client configuration and restarted all the services in the cluster. Unfortunatley, I'm still getting the same error when starting COORDINATOR_ONLY impalad.   The Short circuit reads config looks like following:   ... View more