Note the following functional changes in Version 5.1.0.
New Editions and Licensing Options
Version 5.1 offers new editions of the MapR Converged Data Platform. See the Installation Guide for a description of the new editions and licensing options.
Automated Service Management
systemdto enhance the management of MapR services:
- When a MapR system is rebooted, the following services are automatically restarted:
- These services are also automatically restarted if they are shut down
externally (as opposed to being shut down explicitly via
- RHEL 7.0, 7.1
- CentOS 7.0, 7.1
- SuSe 12
-RM: Expanded to support the Mesos DNS-style host name for Resource Manager.
-HS: Expanded to support the Mesos DNS-style name format for Job History.
-MF: Name for the Myriad framework.
-MCL: Prefix for each Myriad cluster name.
-R --noRecalcMem: Skips recalculating memory settings when refreshing roles. Used only with the
The MapR Converged Community Edition (formerly Community Edition) license provides read/write
access to MapR-DB tables.
If you do not plan to access MapR-DB on your cluster,
configure.sh with the
-noDB parameter on each node.
This results in less memory being allocated to MFS, and more memory being
allocated to MapReduce services.
maprcli Commands and Utilities
maprcli feature enable command is new. This command enables features
when you are upgrading without using the MapR Installer. Individual features or all features
can be enabled. You can also list the enabled and disabled features (
maprcli table create command has a new parameter,
-tabletype, that specifies whether to create a binary table or a JSON
table. The default is binary. For information about JSON tables, see MapR-DB as a Document Database.
maprcli volume createand
maprcli volume modifycommands have the following new parameters:
-dataauditops: specifies the filesystem and table operations to include and/or exclude from auditing
-readAce: sets permissions, defined using Access Control Expressions, for reading files and tables at the volume level
-writeAce: sets permissions, defined using Access Control Expressions, for writing to files and tables at the volume level
maprcli volume createand
maprcli volume modify.
maprcli volume infocommand output will now include:
- Filesystem and table operations included and excluded from auditing
- Access control expressions at the volume level
maprcli volume infofor sample output.
maprcli node modify command can no longer be used to specify the
maximum number of containers. Instead, use the
configuration parameter to specify the maximum number of containers. For more information,
see the description of the config command.
For details about other new commands and utilities, see the documentation for their respective features: MapR Streams, MapR-DB, and File ACEs.
hadoop mfs Command
-setace: sets permissions, defined using Access Control Expressions, on files and directories
-getace: retrieves Access Control Expression settings on specified files and directories
-delace: removes Access Control Expression settings on specified files and directories
Node AlarmsThere is a new node alarm,
No Disk Attached Alarm, that will be raised when there are one or more MFS instances on a node with no SP assigned to them.