hi all we have a problem to start the ambari server we try to start the ambari server after removing some services from ambari for now we get the error as DB configs consistency check failed. Run "ambari-server start --skip-database-check" to skip. You may try --auto-fix-database flag to attempt to fix issues automatically. If you use this "--skip-database-check" option, do not make any changes to your cluster topology or perform a cluster upgrade until you correct the database consistency issues. See /var/log/ambari-server/ambari-server-check-database.log for more details on the consistency issues. ERROR: Exiting with exit code -1. REASON: Ambari Server java process has stopped. Please check the logs for more information. You have mail in we try also the flag --auto-fix-database ( but not help ) [root@master ~]# ambari-server restart Using python /usr/bin/python Restarting ambari-server Waiting for server stop... Ambari Server stopped Ambari Server running with administrator privileges. Organizing resource files at /var/lib/ambari-server/resources... Ambari database consistency check started... Server PID at: /var/run/ambari-server/ambari-server.pid Server out at: /var/log/ambari-server/ambari-server.out Server log at: /var/log/ambari-server/ambari-server.log Waiting for server start............ DB configs consistency check failed. Run "ambari-server start --skip-database-check" to skip. You may try --auto-fix-database flag to attempt to fix issues automatically. If you use this "--skip-database-check" option, do not make any changes to your cluster topology or perform a cluster upgrade until you correct the database consistency issues. See /var/log/ambari-server/ambari-server-check-database.log for more details on the consistency issues. ERROR: Exiting with exit code -1. REASON: Ambari Server java process has stopped. Please check the logs for more information. You have mail in /var/spool/mail/root [root@master ~]# ambari-server restart --auto-fix-database Using python /usr/bin/python Restarting ambari-server Ambari Server is not running Ambari Server running with administrator privileges. Organizing resource files at /var/lib/ambari-server/resources... Ambari database consistency check started... Server PID at: /var/run/ambari-server/ambari-server.pid Server out at: /var/log/ambari-server/ambari-server.out Server log at: /var/log/ambari-server/ambari-server.log Waiting for server start............ DB configs consistency check failed. Run "ambari-server start --skip-database-check" to skip. You may try --auto-fix-database flag to attempt to fix issues automatically. If you use this "--skip-database-check" option, do not make any changes to your cluster topology or perform a cluster upgrade until you correct the database consistency issues. See /var/log/ambari-server/ambari-server-check-database.log for more details on the consistency issues. ERROR: Exiting with exit code -1. REASON: Ambari Server java process has stopped. Please check the logs for more information. [root@master ~]# ambari-server start --skip-database-check Using python /usr/bin/python Starting ambari-server Ambari Server running with administrator privileges. Organizing resource files at /var/lib/ambari-server/resources... Ambari Server is starting with the database consistency check skipped. Do not make any changes to your cluster topology or perform a cluster upgrade until you correct the database consistency issues. See "/var/log/ambari-server/ambari-server-check-database.log" for more details on the consistency issues. Server PID at: /var/run/ambari-server/ambari-server.pid Server out at: /var/log/ambari-server/ambari-server.out Server log at: /var/log/ambari-server/ambari-server.log Waiting for server start......................... Server started listening on 8080 Ambari Server 'start' completed successfully. and finally we not have choice and we start the ambari with skip --database check ambari-server start --skip-database-check so what the steps that neded in order to fix this isshue ? ... View more

hi all log.retention.hours in kafka config is in hours when I set it to small value as 0.5h , and then restart the kafka service kafka service failed , seems because ambari not support this small value so , is it possible any way to by-pass this limitation ? and set the log.retention.hours for example to 30m ? ... View more

according to hortonworks INFO - https://supportmatrix.hortonworks.com we can learn that the latest HDP version is 3.1.0 and the latest OS REDHAT version that should support HDP 3.1.0 is 7.5 since we plan to use the REDHAT version - 7.6 for OS in the future and still we not know what is the next HDP version from HORTONWORKS is it possible to know what should be the BETA HDP version? that should be released by HORTONWORKS and the latest OS that should be support that version ? ... View more

for now we are working with HDP version - 2.6.4 and ambari 2.6.1 with REDHAT version 7.2 we want to know what is the latest REDHAT version that is fit with - HDP version - 2.6.4 and ambari 2.6.1 actually we want to use the REDHAT version 7.6 , but we not sure if HDP - 2.6.4 and ambari 2.6.1 will work on REDHAT 7.6 version about HDP 3.0 version and the latest ambari version what is the latest REDHAT version that we can use for HDP 3.0 version and the latest ambari version ? ... View more

we have ambari cluster ( HDP version 2.6.4 ) how to check that all datanode components ( HDFS ) are up by REST API ? ... View more