Hi @Henry Luo, I see as per the code : https://github.com/apache/ambari/blob/trunk/ambari-server/src/main/resources/stack-hooks/before-ANY/scripts/shared_initialization.py You script is failing at "Creates users before cluster installation" step . I would suggest you skip creating group users via the below REST API : You can refer to this document to perform it via rest API : https://community.hortonworks.com/articles/63557/how-to-edit-the-cluster-envxml-entries-using-ambar.html or else can perform the same via : [root@asnaik1 scripts]# pwd /var/lib/ambari-server/resources/scripts [root@asnaik1 scripts]# python configs.py -u admin -p admin -n asnaik -l asnaik1.openstacklocal -t 8080 -a get -c cluster-env |grep -i ignore_groupsusers_create "ignore_groupsusers_create": "false", [root@asnaik1 scripts]# python configs.py -u admin -p admin -n asnaik -l asnaik1.openstacklocal -t 8080 -a set -c cluster-env -k ignore_groupsusers_create -v true 2018-08-09 04:12:14,914 INFO ### Performing "set": 2018-08-09 04:12:14,914 INFO ### new property - "ignore_groupsusers_create":"true" 2018-08-09 04:12:14,940 INFO ### on (Site:cluster-env, Tag:version1527268503510) 2018-08-09 04:12:14,953 INFO ### PUTting json into: doSet_version1533787934953155.json 2018-08-09 04:12:15,059 INFO ### NEW Site:cluster-env, Tag:version1533787934953155 [root@asnaik1 scripts]# python configs.py -u admin -p admin -n asnaik -l asnaik1.openstacklocal -t 8080 -a get -c cluster-env |grep -i ignore_groupsusers_create "ignore_groupsusers_create": "true", you can get the help from [root@asnaik1 scripts]# python configs.py --help and retry the operation. this time ambari wont be creating a elasticsearch user. Hope this helps. Please accept the answer if this helped you. ... View more

Hi @Naveen R , why dont you try it via UI way. navigate to Hosts Tab ->Actions -> Add new hosts and ADd via UI. if you are sure you want to do it via REST API. please try the following. it worked for me. curl -u admin:admin -H "X-Requested-By:ambari" -i -X POST http://AMBARI_SERVER:8080/api/v1/bootstrap -d '{"verbose":true,"sshKey":"-----BEGIN RSA PRIVATE KEY-----XX PRIVATE KEY-----END RSA PRIVATE KEY-----","hosts":["mycomapny.com"],"user":"root","sshPort":"22","userRunAs":"root"}' Request you to mark the answer as accepted by clicking on accept button if this helps you :) ... View more

Hi @Michael Bronson , Adding the below parameters for AMS_COLLECTOR_GC_OPTS in ams-env template and SERVER_GC_OPTS in ams-hbase-env template via ambari -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=5 -XX:GCLogFileSize=4K Helped me. I hope this is your query. you might need to add it in this two places to control collector-gc.log and gc.log Hope this helps. if you find this answer usefull please mark the 'accept' button so that it helps other community users to find the best one. ... View more