Hortonworks

Namenode: org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.hdfs.server.namenode.NotReplicatedYetException): Not replicated yet

Control the Number of Mappers for MapReduce Job

Namenode not starting: Detected pause in JVM or host machine (eg GC)

Error while adding a node to HDP: SSLError: Failed to connect. Please check openssl library versions

Hive Internal Error: org.apache.hadoop.service.ServiceStateException(java.io.FileNotFoundException: /ats/active does not exist)

hdfs balancer error: org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.hdfs.protocol.RecoveryInProgressException): Failed to APPEND_FILE /system/balancer.id

Starting webhcat server manually

Installing and configuring Zepplin and Interpreters

Ambari Matrices: resource_management.core.exceptions.ExecutionFailed: Execution of ‘/usr/sbin/ambari-metrics-monitor –config /etc/ambari-metrics-monitor/conf start’ returned 255

Hbase: Namespace Manager and Quota Manager Async] master.HMaster: Namespace manager failed to start