Hello, The message below indicates that the Hbase system tables, "hbase:meta" and "hbase:namespace" are not online or assigned to any Region Server. If you grep the master logs for the name of the system tables you might be able to see the problem. If the system table regions are in fact unassigned you can try a full restart if it is a test cluster, you can also use the hbck2 jar to assign regions. https://github.com/apache/hbase-operator-tools/blob/master/hbase-hbck2/README.md  ERROR: org.apache.hadoop.hbase.PleaseHoldException: Master is initializing " ... View more

@phir1  I can think of something like a for maybe: # for i in `cat <users_file>`; do hdfs groups $i; done ... View more