@shyam gurram You need to have an existing running Hadoop cluster for which you want to use Dr. Elephant. Here are instructions for setup. https://github.com/linkedin/dr-elephant/wiki https://github.com/linkedin/dr-elephant/wiki/Administrator-Guide https://github.com/linkedin/dr-elephant/wiki/User-Guide ... View more

@Justin Watkins This is the script I believe you are looking for: https://github.com/apache/ambari/blob/trunk/ambari-server/src/main/resources/stacks/stack_advisor.py Currently stack advisors script in Ambari provide following abilities: - Recommend where services should be installed in cluster - Recommend configurations based on host hardware - Validate user selection of where services are installed on cluster - Validate user configuration values ... View more

@Ammar Rizvi Can you try setting hive.tez.input.format=org.apache.hadoop.hive.ql.io.CombineHiveInputFormat and then execute the same query? ... View more

@Ammar Rizvi While you have deleted the host component using REST APIs, you have not deleted Zeppelin service. Hence, its being shown on Ambari UI. Please delete the service as well. Here is example of removing a service i.e. Falcon. Note: Replace https://gdchdpamb1rlxv:8443/api/v1/clusters/hdp_prod/ with http(s)://<ambari_server_host>:<ambari_server_port>/api/v1/clusters/<cluster_name>/ ########################Get All Components for Service########### curl -u pxkumar:hrwx@91381 -H "X-Requested-by:ambari" -i -k -X GET https://gdchdpamb1rlxv:8443/api/v1/clusters/hdp_prod/services/ACCUMULO/ ###Stop all Components for that service curl -u pxkumar:hrwx@91381 -H "X-Requested-by:ambari" -i -k -X PUT -d '{"ServiceComponentInfo": {"state": "INSTALLED"}}' https://gdchdpamb1rlxv:8443/api/v1/clusters/hdp_prod/services/ACCUMULO/components/ACCUMULO_CLIENT curl -u pxkumar:hrwx@91381 -H "X-Requested-by:ambari" -i -k -X PUT -d '{"ServiceComponentInfo": {"state": "INSTALLED"}}' https://gdchdpamb1rlxv:8443/api/v1/clusters/hdp_prod/services/ACCUMULO/components/ACCUMULO_GC curl -u pxkumar:hrwx@91381 -H "X-Requested-by:ambari" -i -k -X PUT -d '{"ServiceComponentInfo": {"state": "INSTALLED"}}' https://gdchdpamb1rlxv:8443/api/v1/clusters/hdp_prod/services/ACCUMULO/components/ACCUMULO_MASTER curl -u pxkumar:hrwx@91381 -H "X-Requested-by:ambari" -i -k -X PUT -d '{"ServiceComponentInfo": {"state": "INSTALLED"}}' https://gdchdpamb1rlxv:8443/api/v1/clusters/hdp_prod/services/ACCUMULO/components/ACCUMULO_MONITOR curl -u pxkumar:hrwx@91381 -H "X-Requested-by:ambari" -i -k -X PUT -d '{"ServiceComponentInfo": {"state": "INSTALLED"}}' https://gdchdpamb1rlxv:8443/api/v1/clusters/hdp_prod/services/ACCUMULO/components/ACCUMULO_TRACER curl -u pxkumar:hrwx@91381 -H "X-Requested-by:ambari" -i -k -X PUT -d '{"ServiceComponentInfo": {"state": "INSTALLED"}}' https://gdchdpamb1rlxv:8443/api/v1/clusters/hdp_prod/services/ACCUMULO/components/ACCUMULO_TSERVER curl -u pxkumar:hrwx@91381 -H "X-Requested-by:ambari" -i -k -X PUT -d '{"ServiceInfo": {"state": "INSTALLED"}}' https://gdchdpamb1rlxv:8443/api/v1/clusters/hdp_prod/services/ACCUMULO/ ###Remove all Components for service curl -u pxkumar:hrwx@91381 -H "X-Requested-by:ambari" -i -k -X DELETE https://gdchdpamb1rlxv:8443/api/v1/clusters/hdp_prod/hosts/gdchdpdn016rlx.test.edu/host_components/ACCUMULO_CLIENT curl -u pxkumar:hrwx@91381 -H "X-Requested-by:ambari" -i -k -X DELETE https://gdchdpamb1rlxv:8443/api/v1/clusters/hdp_prod/hosts/gdchdpmn05prlxv.test.edu/host_components/ACCUMULO_GC curl -u pxkumar:hrwx@91381 -H "X-Requested-by:ambari" -i -k -X DELETE https://gdchdpamb1rlxv:8443/api/v1/clusters/hdp_prod/hosts/gdchdpmn05prlxv.test.edu/host_components/ACCUMULO_MONITOR curl -u pxkumar:hrwx@91381 -H "X-Requested-by:ambari" -i -k -X DELETE https://gdchdpamb1rlxv:8443/api/v1/clusters/hdp_prod/hosts/gdchdpdn001rlx.test.edu/host_components/ACCUMULO_TSERVER curl -u pxkumar:hrwx@91381 -H "X-Requested-by:ambari" -i -k -X DELETE https://gdchdpamb1rlxv:8443/api/v1/clusters/hdp_prod/hosts/gdchdpdn002rlx.test.edu/host_components/ACCUMULO_TSERVER curl -u pxkumar:hrwx@91381 -H "X-Requested-by:ambari" -i -k -X DELETE https://gdchdpamb1rlxv:8443/api/v1/clusters/hdp_prod/hosts/gdchdpdn003rlx.test.edu/host_components/ACCUMULO_TSERVER curl -u pxkumar:hrwx@91381 -H "X-Requested-by:ambari" -i -k -X DELETE https://gdchdpamb1rlxv:8443/api/v1/clusters/hdp_prod/hosts/gdchdpdn004rlx.test.edu/host_components/ACCUMULO_TSERVER curl -u pxkumar:hrwx@91381 -H "X-Requested-by:ambari" -i -k -X DELETE https://gdchdpamb1rlxv:8443/api/v1/clusters/hdp_prod/hosts/gdchdpdn005rlx.test.edu/host_components/ACCUMULO_TSERVER curl -u pxkumar:hrwx@91381 -H "X-Requested-by:ambari" -i -k -X DELETE https://gdchdpamb1rlxv:8443/api/v1/clusters/hdp_prod/hosts/gdchdpmn05prlxv.test.edu/host_components/ACCUMULO_TRACER curl -u pxkumar:hrwx@91381 -H "X-Requested-by:ambari" -i -k -X DELETE https://gdchdpamb1rlxv:8443/api/v1/clusters/hdp_prod/hosts/gdchdpmn05prlxv.test.edu/host_components/ACCUMULO_MASTER ##Remove Service curl -u pxkumar:hrwx@91381 -H "X-Requested-by:ambari" -i -k -X DELETE https://gdchdpamb1rlxv:8443/api/v1/clusters/hdp_prod/services/ACCUMULO/ ... View more

@Jacek Dobrowolski 1. HDP2.4.x including Ranger is compatible with RHEL7. When we test and ultimately support any OS version, that is for complete distribution of HDP packages as given below. http://docs.hortonworks.com/HDPDocuments/HDP2/HDP-2.4.0/bk_installing_manually_book/content/meet-min-system-requirements.html 2. Refer below for database supportability matrix, please ignore other. Ranger Support PostgreSQL 9.1.13+, 9.3. http://docs.hortonworks.com/HDPDocuments/Ambari-2.2.2.0/bk_Installing_HDP_AMB/content/_database_requirements.html ... View more

@Neeraj SabharwalThis was a BUG in Ambari2.1.2.1 and is fixed in Ambari2.2.0 onwards. ... View more

@Anandha L Ranganathan Every distribution of HDP is created and tested so that components are compatible with each other. So, if you want to upgrade all components in Ambari other than Kafka, while it is definitely possible, we don't recommend it for supportability and compatibility. Essentially, if you go this route, you are trying to create a distro of your own which won't be worth the pain due to possible unknown BUGs, support issues and other challenges. Better take your time, upgrade Dev cluster, re-write consumer jobs and then upgrade prod once you have tested everything. This would ensure smooth upgrade. Else time and effort saved here can result into pain in other areas down the road as mentioned above. Hope it helps!! ... View more