how to update blueprint/ambari cluster in case increasing disks on worker machines

we have ambari cluster with 3 masters machines , two kafka’s and 3 workers machines

each worker have 5 disks as :

/dev/sdb                   200G  477M   200G   3% /gr/sdb
/dev/sdc                   200G  183M   200G   1% /gr/sdc
/dev/sdd                   200G  283M   200G   2% /gr/sdd
/dev/sde                   200G   45M   200G   1% /gr/sde

we want to add additional 5 disks to each worker machine as ( /dev/sdf , /dev/sdh …, etc )

remark – our Workers nodes runs both a DataNode and NodeManager

for now I understand that the following parameters should be update according to the new disks

dfs.datanode.data.dir ( from HDFS )

yarn.nodemanager.local-dirs ( from YARN )

yarn.nodemanager.log-dirs ( from YARN )

regarding that do we missed something else? that need to be configured?

second

after we reconfigured the parameters in ambari GUI ,

how to verify that ambari cluster recognize the new disks on worker machines?

Answer

First, you need to partition the disks, then mount them in the /etc/fstab to a directory.

Those settings look correct, though.

how to verify that ambari cluster recognize the new disks on worker machines

It will alert if the configured volumes in the list of those properties are not mounted.