HDFS balancer not working properly , even running manually the balancer through CLI , while running the balancer through CLI the output is coming as cluster is balanced but while running the fsck command it is showing that 6692 blocks are still under replicated. Please suggest the better solution. ... View more

How to check which user has submitted which job( it may be either spark, mapreduce, hive,hbase) and how many disk , memory usage it has taken . Manually we can check it though NN UI but how i can check it dynamically with complete userwise information. ... View more

I wanted to install locally and wanted to integrate it with single node hadoop cluster? Need help how can i do that ? ... View more

Suppose if i the change value for below parameters on prod.. so what the below parameter will cause if i change the values. HDFS Parameter Current value PROD Current value DR dfs.namenode.handler.count 40 100 yarn Parameter current Value(PROD) Current Value(DR) yarn.timeline-service.ttl-ms 259200000 604800000 mapreduce Parameter current Value(PROD) Current Value(DR) mapreduce.task.io.sort.mb 1433 819 yarn.app.mapreduce.am.resource.mb 4096 2048 can someone suggest what value i can set and what will impact if i change the value ? ... View more

What can be the best script for Ambari service automation for all the change implementations ? ... View more

what should be the script if we made any changes in the implementations so that it should reflects the ambari services automatically ? ... View more