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01-21-2019
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01-23-2019
02:57 PM
Hi, I noticed you are using a quickstart VM, from your nameNode name ( hdfs : //quickstart.cloudera:8020) in your job.properties. Most likely, when the oozie launcher launches and stays in RUNNING status, but no further additional hive job launches, yarn does not have enough resources to launch an additional job. Please take a look at the Yarn Resource Manager role log and Yarn Resource Manager scheduler page for clues. This could be due to lack of memory (AM, nodemanager, or scheduler), vcores, or several other factors in yarn tuning. The quickstart VM is tuned for a very small demo environment. You may need to add additional memory to the VM and/or cores, then tune yarn to have more resources for the second hive job from oozie to launch. I will provide a link to a blog to aid you in this tuning below. https://blog.cloudera.com/blog/2015/10/untangling-apache-hadoop-yarn-part-2/
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01-21-2019
11:23 AM
Hi subhash parise, The link shared by you only talk about when you hit "Error"/"Killed" output while running Oozie job. For me Oozie job output is always in "Running" state.
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01-04-2019
05:30 AM
Hi @Dinesh Singh, If I understand correctly you need to select value which ever has non null out of two columns, for instance if your data has this manner. Col1 Col2 A1 B1 NULL B2 A3 NULL and you would like to select the data as (A1,B2,A3) you may use COALESCE(Col1,Col2,'<Your Default value>') and on top of this table you may create a view so that end user directly view the result as single columns NB: If you are convenient you may use case statement for complex logic implementation to retrieve as single column. Thanks,
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