Hi, I am copying table from primary cluster to backup cluster using copyTable command but m-r job spawned by this command is stuck at map "100% reduce 0%".
Command used is : hbase org.apache.hadoop.hbase.mapreduce.CopyTable -Dhbase.client.scanner.caching=100 --peer.adr=target-nn1:/hbase Here is some part of the logs where job is stuck since last 15 minutes. 15/05/02 09:49:17 INFO mapreduce.JobSubmitter: number of splits:1 15/05/02 09:49:17 INFO Configuration.deprecation: io.bytes.per.checksum is deprecated. Instead, use dfs.bytes-per-checksum 15/05/02 09:49:17 INFO mapreduce.JobSubmitter: Submitting tokens for job: job_1424936551928_0181 15/05/02 09:49:18 INFO impl.YarnClientImpl: Submitted application application_1424936551928_0181 15/05/02 09:49:18 INFO mapreduce.Job: The url to track the job: http://resource-manager:8088/proxy/application_1424936551928_0181/ 15/05/02 09:49:18 INFO mapreduce.Job: Running job: job_1424936551928_0181 15/05/02 09:49:27 INFO mapreduce.Job: Job job_1424936551928_0181 running in uber mode : false 15/05/02 09:49:27 INFO mapreduce.Job: map 0% reduce 0% 15/05/02 09:49:40 INFO mapreduce.Job: map 100% reduce 0% Does anyone knows why this m-r job gets hang at reduce 0%? I am not able to see m-r jobs logs also because this cluster is in VPC, can't reach yarn job web UI. Regards, Chandrash3khar Kotekar Mobile - +91 8600011455
