@Lei Tang, Currently Ambari doesn't allow passing monitoring type and port from GUI. You have to pass it through command line. Below is the snippet from (/var/lib/ambari-server/resources/common-services/FLUME/1.4.0.2.0/package/scripts/flume.py). You can see that monitoring type is added only when AMS is enabled. if params.has_metric_collector: extra_args = '-Dflume.monitoring.type=org.apache.hadoop.metrics2.sink.flume.FlumeTimelineMetricsSink ' \ '-Dflume.monitoring.node={0}:{1}' # TODO check if this is used. extra_args = extra_args.format(params.metric_collector_host, params.metric_collector_port) If you want to hack it, you can put the values here in the file and restart ambari server . Thanks, Aditya ... View more

@Anvesh Cherupalli, You will not be allowed to copy code scripts from your laptop. There will be a person who will be watching you. You will have to 1) Share your screen 2) Switch on your webcam before starting the exam. 3) Close all the running applications in your laptop and show your task manager. 4) Show the room to the person. Make sure no one enters the room while writing the exam. 5) Show an original ID proof. You will be provided with docs.hortonworks.com link. You cannot open any other links or google anything. Hope this helps. Please accept the answer if this answered your questions else revert back. All the best 🙂 Thanks, Aditya ... View more

@Mario Borys, Try installing the package and run the script.Login to R shell and run the command # R # install.packages('data.table') Thanks, Aditya ... View more

@Shyam Shaw, Note: I haven't tried it myself but hope this should work. Please be cautious if you trying it on production cluster 1) Find the upgrade xml file on ambari server host. /var/lib/ambari-server/resources/stacks/HDP/2.5/upgrades/upgrade-2.6.xml 2) Comment out the following piece of code in the upgrade XML file and save it. This piece of code will occur thrice . SERVICE_CHECK_1, SERVICE_CHECK_2, SERVICE_CHECK_3. Comment all the 3. <group name="SERVICE_CHECK_1" title="All Service Checks" xsi:type="service-check"> <direction>UPGRADE</direction> <skippable>true</skippable> <priority> <service>ZOOKEEPER</service> <service>RANGER</service> <service>RANGER_KMS</service> <service>HDFS</service> <service>KAFKA</service> <service>YARN</service> <service>MAPREDUCE2</service> <service>HBASE</service> </priority> </group> 3): skip service check failures. Change it to true from false <skip-service-check-failures>true</skip-service-check-failures> 4) Restart Ambari Server for it to pick up the changes. ambari-server restart 5) Start rolling upgrade Thanks, Aditya ... View more