Hello, Is it possible to state the order and underlying dependancies while submitting an ambari blueprint ? like for eg: we want zookeeper to be installed first , we don't want certain components to be installed if underlying dependancies are not installed etc . ... View more

Hello , I had a 5 node HDP cluster running with embedded postgress running. Over the weekend , the server patching activity caused autoreboot on all the 5 nodes and now all the components are down. It would be helpful to know: 1) How can i recover the cluster back to have all the components functioning again ? 2) I tried starting postgress and then start ambari-server manually so that i can resubmit the blueprints if required to reinstall other components but ambari while starting up is throwing the below error(I am using openJDK): Looking for available JDKs at /usr/jdk64 Found: [] ERROR: Exiting with exit code 1. REASON: No JDK found, please run the "ambari-server setup" command to install a JDK automatically or install any JDK manually to /usr/jdk64 3) How do setup the components (HDFS , YARN , Ranger , Zeppelin , HIVE)to autorestart so that we can survive any VM reboots ? ... View more

Hi Team , I am getting the below error while starting up the YARN resource manager. Service ResourceManager failed in state STARTED; cause: org.apache.hadoop.service.ServiceStateException: com.google.protobuf.InvalidProtocolBufferException: Could not obtain block: BP-336345988-xx.xx.xxx-1503962015086:blk_1073741849_1026 file=/system/yarn/node-labels/nodelabel.mirror org.apache.hadoop.service.ServiceStateException: com.google.protobuf.InvalidProtocolBufferException: Any hints on what to look for or fix it would be helpful ... View more

Hi Team, We are trying to bring up the HDP cluster via ambari. For some reason zookeeper doesn't come up. It is throwing the below log in /var/log/zookeeper/ "Error occurred during initialization of VM Too small initial heap" Can you help on Probable debug steps. Thanks ... View more

How to create a Hortonworks cluster without kerberos ... View more