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sameermrinal
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HA for MapReduce2 History server, Yarn App Timelin...

by New Contributor in Support Questions
‎07-05-2018 10:40 AM
‎07-05-2018 10:40 AM
Is there any way, we can implement high availability for MapReduce2 History server, Yarn App Timeline Server and Spark2 History Server? I implemented HA for NN, RM and Oozie-server, but when the node where mapred2 history server is hosted, goes down, the oozie jobs are not completing(they are in waiting/suspended/running stages). I checked this thread(2 years old), but is there any recent development w.r.t. providing HA for the mentioned components. ... View more
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Re: NameNode Active and Standby state is not showi...

by New Contributor in Support Questions
‎05-25-2018 01:04 PM
‎05-25-2018 01:04 PM
@Sampath Kumar : It looks like namenode is not installed on one of the hosts configured for namenode HA. Check both the hosts where you are trying to configure nn1 and nn2, and install the namenode on the host where it is not installed. curl -u <ambari_user>:<ambari_password> -H "X-Requested-By:ambari" -i -X POST http://<ambari-port>:<ambari-port>/api/v1/clusters/<cluster_name>/hosts/<host_name>/host_components/NAMENODE ... View more
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