Operational Changes for 5.2

hadoop mfs Command

To set and retrieve hard links, the hadoop mfs command now includes the following options:

• -lnh: sets hard links.

• -stat: retrieves hard links.

For more information, see hadoop mfs

To set, remove, and retrieve extended attributes, the hadoop fs command now includes the following options:

• -setfattr: sets or removes extended attributes.

• -getfattr: retrieves extended attributes.

For more information, see hadoop fs.

maprcli Commands and Utilities

The following commands are new:

• maprcli entity remove - to remove an entity by name and type. For more information, see entity remove.

• mrconfig info nfsthreads - to display information about NFS operations in-progress. For more information, see mrconfig info nfsthreads.

Replication for JSON tables at the column-level is added by expanding the -columns option for the following commands:

• maprcli table replica add

• maprcli table replica autosetup

• maprcli table replica edit

For more information, see table replica

configure.sh

The following parameters were added to configure.sh for MapR Monitoring configuration:

• -ES: Specifies a comma-separated list of host names or IP addresses that identify the Elasticsearch nodes

• -ESDB: Specifies a non-default location for writing index data on Elasticsearch nodes.

• -OT: Specifies a comma-separated list of host names or IP addresses that identify the OpenTSDB nodes.

For more information, see configure.sh.