Yes you need a subscription to access. ... View more

@Ashfaq Cloudera Manager server which is cloudera-scm-server with pckg name cloudera-manager-server-5.16.2-1.cm5162.p0.7.el7.x86_64 (5.16.2 is the version here) running behind the scenes which enables the jetty server and provide you a Web UI.    So if cloudera-scm-server service is down your CM Web UI is down. This is the short answer.  ... View more

@bvishal Once you installed the software suit you don't need /var/www/ content so it's safe to remove and reuse for next component installation whatever you want. You are good to go.    However your described method for moving the content in diff dirt and server from there using http server is also fine but not needed at this point as we have build the cluster already. This is just temporary to install things.    For Ref: https://docs.cloudera.com/cdp-private-cloud-base/7.1.3/installation/topics/cdpdc-using-internally-hosted-remote-parcel-repo.html ... View more

@WayneWang  This thread might help you.   https://community.cloudera.com/t5/Support-Questions/Changing-rack-awareness-in-a-running-Hadoop-cluster-in/m-p/56473/highlight/true#M48693 ... View more

@olracmarques  Below community thread might help.    https://community.cloudera.com/t5/Support-Questions/What-is-the-minimum-system-requirement-to-setup-pseudo/td-p/21121   But I would strongly suggest to start with 10GB RAM at least for using Cloudera Manager in VM.  ... View more

Hello @Amn_468  Since you reported the DN Pause time, I spoke/referred about DN heap only.  The block counts on most of the DN seems >6Millions, hence would suggest to increase the DN heap to 8GB (from current value of 6GB) and perorm a rolling restart to bring the new heap size into effect.    There is no straight forward way to say you hit the small file problem but if your average block size is few MB or less than a MB in size, it is an indication that you are storing/accumulating small files in HDFS.  Simplest way to determine small files in cluster is to run fsck.   Fsck should show the average block size. If it's too low a value (eg ~ 1MB ), you might be hitting the problems of small files which would be worth looking at, otherwise, there is no need to review the number of blocks.   [..] $ hdfs fsck / .. ... Total blocks (validated): 2899 (avg. block size 11475601 B) <<<<< [..]   You may refer belwo links for your help on dealing with small files. - https://blog.cloudera.com/small-files-big-foils-addressing-the-associated-metadata-and-application-challenges/ - https://community.cloudera.com/t5/Community-Articles/Identify-where-most-of-the-small-file-are-located-in-a-large/ta-p/247253  ... View more