@Balkrishna, The problem is with special characters in the KAFKA service metrics file. We use this file as a part of stack_advisor calculations for AMS split points. Following is a grep on non ASCII characters that reveals the problem :- grep --color='auto' -P -n "[\x80-\xFF]" /var/lib/ambari-server/resources/common-services/AMBARI_METRICS/0.1.0/package/files/service-metrics/KAFKA.txt This will show you the ascii characters present in the file as, Output:-43:��kafka.network.RequestMetrics.RequestsPerSec.request.OffsetFetch.count�� 45:��kafka.network.RequestMetrics.RequestsPerSec.request.OffsetCommit.count 47:kafka.network.RequestMetrics.RequestsPerSec.request.LeaderAndIsr.1MinuteRate�� Use /var/lib/ambari-server/resources/scripts/configs.sh to modify and get values from ambari-server as, /var/lib/ambari-server/resources/scripts/configs.sh -u admin -p ADMIN_PASSWORD -port 8080 get localhost CLUSTER_NAME ams-site Check the value of "timeline.metrics.cluster.aggregate.splitpoints" and "timeline.metrics.host.aggregate.splitpoints", Look for special non-ascii characters example: "dfs.datanode.ReplaceBlockOpAvgTime,kafka.network.RequestMetrics.RequestsPerSec.request.JoinGroup.1MinuteRate ,master.Master.ProcessCallTime_num_ops,regionserver.Server.blockCacheEvictionCount" Here after 1MinuteRate there is space which will shown as a special character on browser through API call as, "http://AMBARI_SERVER_HOSTS:8080/api/v1/clusters/CLUSTER_NAME/configurations?type=ams-site" Take latest tag from it at the bottom of page. and put it on browser you will see the special character as, "timeline.metrics.cluster.aggregate.splitpoints":"dfs.datanode.ReplaceBlockOpAvgTime,kafka.network.RequestMetrics.RequestsPerSec.request.JoinGroup.1MinuteRate
,master.Master.ProcessCallTime_num_ops,regionserver.Server.blockCacheEvictionCount" To resolve this issue use, /var/lib/ambari-server/resources/scripts/configs.sh -u admin -p ADMIN_PASSWORD -port 8080 set localhost CLUSTER_NAME ams-site timeline.metrics.cluster.aggregate.splitpoints dfs.datanode.ReplaceBlockOpAvgTime,kafka.network.RequestMetrics.RequestsPerSec.request.JoinGroup.1MinuteRate,master.Master.ProcessCallTime_num_ops,regionserver.Server.blockCacheEvictionCount To change second property paramater use:- /var/lib/ambari-server/resources/scripts/configs.sh -u admin -p ADMIN_PASSWORD -port 8080 get localhost CLUSTER_NAME ams-site /var/lib/ambari-server/resources/scripts/configs.sh -u admin -p ADMIN_PASSWORD -port 8080 set localhost CLUSTER_NAME ams-site timeline.metrics.host.aggregate.splitpoints EventTakeSuccessCount,cpu_idle,dfs.FSNamesystem.ExcessBlocks,dfs.datanode.ReadBlockOpNumOps,disk_total,jvm.JvmMetrics.LogError,kafka.controller.ControllerStats.LeaderElectionRateAndTimeMs.99percentile,kafka.network.RequestMetrics.RequestsPerSec.request.FetchFollower.5MinuteRate,kafka.network.RequestMetrics.RequestsPerSec.request.UpdateMetadata.1MinuteRate,kafka.server.BrokerTopicMetrics.FailedFetchRequestsPerSec.meanRate,master.AssignmentManger.ritCount,master.FileSystem.MetaHlogSplitTime_95th_percentile,mem_shared,proc_total,regionserver.Server.Append_median,regionserver.Server.Replay_95th_percentile,regionserver.Server.totalRequestCount,rpcdetailed.rpcdetailed.GetBlockLocationsAvgTime,write_bps ### Restart the Service ... View more

@ARUN, Both the mathods "Copytable" and "Import/Export of table" are good for this but they will degrade the performance of regionserver while copying. I would preffer "Snapshot" mathod best for Backup and Recovery. Note:- Snapshot method will only work if both cluster are of same version of Hbase. I tried it. If your both cluster hbase versions are different then you can use Copytable method. Snapshot method, Go to hbase-shell and Take a snapshot of table, =>hbase shell =>snapshot "SOURCE_TABLE_NAME","SNAPSHOT_TABLE_NAME" Then you can Export that snapshot to other cluster like, =>bin/hbase org.apache.hadoop.hbase.snapshot.ExportSnapshot -snapshot SNAPSHOT_TABLE_NAME -copy-to hdfs://DESTINATION_CLUSTER_ACTIVE_NAMENODE_ADDRESS:8020/hbase -mappers 16 After this you can restore the table on DESTINATION Cluster as,On Dest_Cluster, =>hbase shell =>disable "DEST_TABLENAME" =>restore_snapshot "SNAPSHOT_TABLE_NAME" Done your table will be copied. ... View more

@Arkaprova, Please use, --compress --compression-codec org.apache.hadoop.io.compress.SnappyCodec in the command, you will get the result in proper format. ... View more

Hi, Please follow this document for requirements of HDP, https://docs.hortonworks.com/HDPDocuments/Ambari-2.2.1.0/bk_Installing_HDP_AMB/content/_memory_requirements.html ... View more