We solved the issue. Looks like it is a ulimit related problem.   We raised user limits under  /etc/security/limits.d/     And then we created a file under  /etc/systemd/system/cloudera-scm-agent.service.d/override.conf To override service-level limits   And we raised the value  echo "65536" > /sys/fs/cgroup/pids/system.slice/cloudera-scm-agent.service/pids.max (instead of rebooting). ... View more

We engaged vendor professional support and we discovered that: ​1- There is an internal thread on HBase REST API documentation that needs enhancement ​2- It is possible to use this endpoint (but is not safe if you not have the control of the client that call the service) and, because it can cause OOM, is better/mandatory to use kerberos auth for Hbase REST API ... View more

We engaged vendor professional support and we discovered that: 1- There is an internal thread on HBase REST API documentation that needs enhancement 2- It is possible to use this endpoint (but is not safe if you not have the control of the client that call the service) and, because it can cause OOM, is better/mandatory to use kerberos auth for Hbase REST API ... View more