Hello, Thanks for the explanation and for the help. ... View more

Hi @JGUI , There is no requirement for deleting the data from the datanode that is going to be decommissioned. Once the DN is been decommissioned all the blocks in the DN would be replicated to a different DN.   And is there any error that you are encountering while you are decommissioning ? Typically, HDFS would self-heal and would re-replicate the under-replicated blocks that are due to the DN that is been decommissioned. And NN would start replicating the blocks with the other two replication that is present in HDFS. ... View more

@bobreynolds The service keytabs by default is in /var/run/cloudera-scm-agent/process/xxx-flume-xxxx . Hope you are checking in the same dir. If it's not there then you probably have to generate missing credentials from CM > Administration > Security > Kerberos Credentials and then regenerate.  ... View more

Hi @ryu, then you might need to build some customize in-house monitoring scripts using Yarn APIs or other tools like Prometheus or Grafana for your use case. Please also refer to the below links for more insights https://www.programmersought.com/article/61565532790/ http://rokroskar.github.io/monitoring-spark-on-hadoop-with-prometheus-and-grafana.html https://www.linkedin.com/pulse/how-monitor-yarn-application-via-restful-api-wayne-zhu/         ... View more

@suzu This might help you.  https://community.cloudera.com/t5/Community-Articles/Apache-Metron-TP-1-Install-Instructions-Single-Node-Vagrant/ta-p/245729 ... View more

@chris_snedaker Can you help me to understand what is the difference between if below two are similar in nature?  connection.close() &  conn_imp.close() I think you should try with connection.close() and see if this works. Also is this the same behaviour outside of CDSW if you test the same code from host. This can help you to narrow down the situation.  ... View more

@muslihuddin It could be but I can't confirm since we don't have any insight may be the old logs digging can give some clue. I haven't seen this before.  ... View more

Thanks for the suggestion. Actually I implemented the virtual machine again, with the latest version of VirtualBox that I have installed, and for now the incident has not been repeated. ... View more

Here is the link : https://www.cloudera.com/products/pricing.html However I would encourage you to Contact Sales for further discussion: https://www.cloudera.com/products/pricing.html ... View more