I'm new to this. Just trying to establish datapipeline unfortunately each time cluster entity giving error and these error are not helpful. Could you please elaborate steps so that it will be helpful to me and like me many other users. Thanks ... View more

Yes, hdfs is typically the superuser on HDFS. ... View more

Thx @bsani We have sat HA on our name nodes while we don't want the cluster to be unawailable. So is there a best practice for doing patching on a cluster that is supposed to be available 24/7. How to avoid rebalancing during patching When upgrading datanodes in chuncks, is there a way to make sure that replica of a data block is available on one of the servers alive /Claus ... View more

Yes it can do Inserts, but it turns out that they're RBAR updates. We may try SIMBA drivers to see if they improve the performance (allow batching) but we are in the meantime moving ahead with Inserts via Access -> SQL Server -> Hive via Sqoop. ... View more

It is easy to override default hdfs properties like replication factor or HDFS block size at time of directory creation. ... View more

@bsaini did this project get a start ? interested in following it and contribute if i can ... ... View more

@rdoktorics@hortonworks.com Docker in Docker possible but question is if "Cloudbreak has the capability to launch clusters in private or public cloud environment based on docker" @bsaini@hortonworks.com ... View more

Add the following variable to the yarn-log4j configuration via Ambari export YARN_ROOT_LOGGER=DEBUG,RFA Be careful, this will fill up the Resourcemanager log with a lot of details 🙂 ... View more

Refer following documentation for Host Config Groups http://docs.hortonworks.com/HDPDocuments/Ambari-2.1.2.0/bk_Ambari_Users_Guide/content/_using_host_config_groups.html ... View more

You can run smoke test script via command line to see if timeout value causing service check to fail ? (one of the possible cause) Run below command as ambari-qa user: source /usr/hdp/current/oozie-client/conf/oozie-env.sh ; /usr/hdp/current/oozie-client/bin/oozie -Doozie.auth.token.cache=false job -oozie http://localhost:11000/oozie -config /usr/hdp/current/oozie-client/doc/examples/apps/map-reduce/job.properties -run ... View more