Hi,   We are getting warning (concerning) messages for mapreduce1  jobtracker frequently on our Cloudera CDH 5.9 cluster. Currently java heap size of jobtracker is 4.11GB and it's 14-node cluster.   Below is the warning message that appears regarding the garbage collection.   Test of whether this role spends too much time in garbage collection.   Concerning:Average time spent in garbage collection was 20.6 seconds(34.28%)per minute over the previous  5 minute(s).Warning threshold:30.00%     Can someone please help me to get rid of the issue?   Thanks, Priya ... View more

Hi, We are trying to implement Archival program for HDFS files using mapreduce action and I am getting below error from oozie every time. JA018 Main class [org.apache.oozie.action.hadoop.ShellMain], exit code [1] The Job Browser lists the job as successful but the workflow shows status Kill with the above error.   I checked the hue WebUI as well, there also same error message. Can you please help me with this error? Thanks, Priya ... View more

Hello All,   We have CDH5.9.2 hadoop 13-node  cluster and from one week, I am exeperiencing block count concerning warning notification in cloudera manager for all 6 datanodes.   We have multitenancy implemented in our cluster. So I deleted the older files via hdfs command line and block count is below the threshold value.   But still the block count concerning warning appears in the cloudera manager.   Please suggest.   Thanks, Priya ... View more