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Gonzalo Herreros
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Rising Star
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Re: HBase - Region in Transition

by Expert Contributor in Support Questions
‎09-14-2017 02:54 PM
‎09-14-2017 02:54 PM
When you run OfflineMetaRepair, most likely you will run it from your userid or root.  Then we may get some opaque errors like "java.lang.AbstractMethodError: org.apache.hadoop.hbase.ipc.RpcScheduler.getWriteQueueLength()".    If you check in HDFS, you may see that the meta directory is no longer owned by hbase:   $ hdfs dfs -ls /hbase/data/hbase/ Found 2 items drwxr-xr-x - root hbase 0 2017-09-12 13:58 /hbase/data/hbase/meta drwxr-xr-x - hbase hbase 0 2016-06-15 15:02 /hbase/data/hbase/namespace Manually chown -R it and restart HBase fixed it for me.     ... View more

Re: Issue on running spark application in Yarn-clu...

by Contributor in Support Questions
‎02-13-2017 08:10 PM
‎02-13-2017 08:10 PM
Thank you, you are right, when I create a kadmin user on each linux machine, you can successfully submit the task! ... View more

Re: How Run an MapReduce program in a VM from a Ja...

by Rising Star in Support Questions
‎04-23-2015 03:10 AM
‎04-23-2015 03:10 AM
Ok, you have to build a MapReduce job and run it. Basically you need to implement a few interfaces (maper, reducer), create a jar with that code and submit it either command line or from Java create, configure and start a Job.   See this tutorial: https://hadoop.apache.org/docs/r2.6.0/hadoop-mapreduce-client/hadoop-mapreduce-client-core/MapReduceTutorial.html   ... View more
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Member Since ‎10-31-2014 01:55 AM
Last Visited ‎05-04-2017 05:57 AM
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