Operational Changes

Note the following functional changes in Version 5.2.0.

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.