I have 5 Data nodes, where 1 Data node crashed. Name node is still replicating the data blocks of the crashed Data node. What happens when I recover the crashed Data node. The data blocks which is under replicated will be reported but what happens to already replicated blocks. Will they be marked as corrupted blocks or will be deleted/removed since there will be 4 replicas? ... View more

Hello All,     My Ranger DB is corrupted and I have no backup to restore it. Can I drop the corrupt db and recreate a new db for Ranger. This is for my Kerberized cluster in my test environment.   Any advice. ... View more

Hello All,     When upgrading HDP cluster to 3.1.0 version -Restarting yarn DNS resgistry failed due to  ERROR 'resource_management.core.exceptions.ExecutionFailed: Execution of 'ambari-sudo.sh -H -E /usr/hdp/3.1.0.0-78/hadoop-yarn/bin/yarn --config /usr/hdp/3.1.0.0-78/hadoop/conf --daemon start registrydns' returned 1. ERROR: Cannot set priority of registrydns process 123223'. I ignored it and proceeded with the upgrade. But at Finalize Pre check the task failed and the only option available is to delete the unhealthy and host and proceed with the upgrade.   How can I resolve this issue. @jsensharma ... View more

Hello All,     I've installed CM manager 6.3.0 and agents in my 7 node cluster. While setting up the CDH 6.3.1 installation, i'm stuck at setup database step, where the test connection is running for more than 2 hours, with only info found in Cloudera manager log given below. There is no error or any other information. I can successfully connect to my databases from command line. But CM is unable to verify the connections. Any help will be appreciated.   2019-12-11 21:48:41,016 INFO scm-web-93:com.cloudera.enterprise.JavaMelodyFacade: Entering HTTP Operation: Method:POST, Path:/dbTestConn/testConnection 2019-12-11 21:48:41,036 INFO scm-web-93:com.cloudera.enterprise.JavaMelodyFacade: Exiting HTTP Operation: Method:POST, Path:/dbTestConn/testConnection, Status:200 2019-12-11 21:48:43,071 INFO scm-web-93:com.cloudera.enterprise.JavaMelodyFacade: Entering HTTP Operation: Method:POST, Path:/dbTestConn/checkConnectionResult 2019-12-11 21:48:43,081 INFO scm-web-93:com.cloudera.enterprise.JavaMelodyFacade: Exiting HTTP Operation: Method:POST, Path:/dbTestConn/checkConnectionResult, Status:200 ... View more

Hello All,      I have a two nifi nodes and while taking backup moved the flow files to backup folder in both the nodes and restarted NIFI service and my NIFI UI is blank. I restored the flow files back and after restart the NIFI node crashes with the below error. ERROR [main] o.a.nifi.controller.StandardFlowService Failed to load flow from cluster due to: org.apache.nifi.controller.UninheritableFlowException: Failed to connect node to cluster because local flow is different than cluster flow. org.apache.nifi.controller.UninheritableFlowException: Failed to connect node to cluster because local flow is different than cluster flow.   Please help. ... View more