Hi @Koffi ,   yarn.nodemanager.log-dirs is where User Jobs Containers write the stdout, stderr and syslogs. Yarn has log aggregation which copies the log files from NodeManager local directory to HDFS and remove them.   In yarn-site.xml look for below property in yarn configs in ambari  (the below is from my property) <property> <name>yarn.nodemanager.log-dirs</name> <value>/var/log/hadoop/yarn/log</value> </property>   And make sure dedicated disk is allocated. And one more chance of disks getting full is if more parallel containers running on a NodeManager and writing too much of intermediate data.   The most common cause of log-dirs are bad is due to available disk space on the node exceeding yarn's max-disk-utilization-per-disk-percentage default value of 90.0%. Either clean up the disk that the unhealthy node is running on, or increase the threshold in yarn-site.xml.   if you are more interested, please read : https://blog.cloudera.com/resource-localization-in-yarn-deep-dive/ ... View more

well written article , For those who are using oracle database, we need to commit the transaction done after this changes. ... View more

Hi @CarlosHS, inorder to perform CURL/REST APi with Nifi, you might need a access token , as per blog : following command will get you the access token curl 'https://nifi-host:port/nifi-api/access/token' -H 'Content-Type: application/x-www-form-urlencoded; charset=UTF-8' --data 'username=ldap-username&password=ldap-password' --compressed —insecure Later this token need to be reused for all operations like : curl -k ’https://nifi-host:port/nifi-api/flow/process-groups/root/status' -H “Authorization: Bearer $token” hope this helps ... View more

Helpfull Article to update Repo URLS incase manage version UI is not loading. ... View more

its not suggested to delete the Intermediate files of hbase directory directly. follow this : if you are ok with data erasing : https://cwiki.apache.org/confluence/display/AMBARI/Cleaning+up+Ambari+Metrics+System+Data ... View more

you should be copying the directory structure as it is . Create folder hbase and hbase in /data_metrics/lib/ambari-metrics-collector/ and copy the contents from other place as it is. ... View more

Hi @Michael Bronson , If you want to preserve the metrics data of AMS , please follow the steps here : https://community.hortonworks.com/questions/246159/ambari-metrics-change-the-path-of-hbaserootdir-bec.html If you dont want to preserve the data of AMS and just want to clean it up : please refer to : https://cwiki.apache.org/confluence/display/AMBARI/Cleaning+up+Ambari+Metrics+System+Data Refer to this blog if you are more interested in reading blogs : https://community.hortonworks.com/articles/144318/identifying-and-tackling-scale-problems-in-ambari.html Please accept answer if this Helps 🙂 ... View more

This is so informative :). Helps alot as there is no bulk delete operation via UI ... View more