table edit

Edits the attributes of a MapR-DB binary or JSON table.

CLI
maprcli table edit
  -path path  
[ -audit true|false ]
[ -autosplit Auto Split table ]
[ -regionsizemb Region Size in MB ]
[ -bulkload Bulk load ]
[ -deletettl delete TTL in secs ]
[ -packperm Pack Permission settings ]
[ -bulkloadperm Bulk load Permission settings ]
[ -splitmergeperm Split and Merge Permission settings]
[ -createrenamefamilyperm Add/Rename Family Permission settings ]
[ -deletefamilyperm Delete Family Permission settings ]
[ -adminaccessperm Ace Admin Permission settings ]
[ -replperm Replication Admin Permission settings ]
[ -defaultversionperm CF Versions Default Permission ]
[ -defaultcompressionperm CF Compression Default Permission ]
[ -defaultmemoryperm CF Memory Default Permission ]
[ -defaultreadperm CF Read Default Permission ]
[ -defaultwriteperm CF Write Default Permission ]
[ -defaulttraverseperm CF Traverse Default Permission ]
[ -defaultappendperm CF Append Default Permission ]
REST
http[s]://<host>:<port>/rest/table/edit?path=<path>
Note: The mapr user is not treated as a superuser. MapR-DB does not allow the mapr user to run this command unless that user is given the relevant permission or permissions with access-control expressions.

Parameter

Description

path

The path to the table.

  • For a path on the local cluster, start the path at the volume mount point. For example, for a table named test under volume1 which has a mount point at /volume1, specify the following path: /volume1/test
  • For a path on a remote cluster, you must also specify the cluster name in the path. For example, for a table named test under volume1 in the sanfrancisco cluster, specify the following path:/mapr/sanfrancisco/volume1/customer
audit Specifies whether to turn auditing on for the table. If auditing is also enabled at the cluster level with the maprcli audit data command and enabled for the current volume, setting this value to true causes auditing to start for the table.
autosplit

A Boolean value that specifies whether to split the table into regions automatically as the table grows. The average size of each region is determined by the regionsizemb parameter.

The default value is true. If you set the value to false, you can manually split tables into regions by using the table region split command.

regionsizemb

The average size of the regions into which MapR-DB tries to split the table as the table grows. The default is 4096 MB. This value is ignored if autosplit is set to false.

If autosplit is set to true, MapR-DB splits a region when the size of the region exceeds 150% of the average value. For example, if the average value is 4096 MB, MapR-DB splits a region that is larger than 6144 MB.

Although splits are automatic, merges are not. For example, if the value of regionsizemb is changed from 8 GB to 4 GB, all regions that are eligible are split automatically, if autosplit is set to true. However, if the value of regionsizemb is changed from 2 GB to 4 GB, regions smaller than 4 GB are not automatically merged.

Note: When a table has less than 4 regions, MapR-DB ignores the regionsizemb parameter and splits regions at a lower threshold.
bulkload

A Boolean value that specifies whether to allow a full bulk load of the table. The default is false. For more information, see Bulk Loading and MapR-DB Binary Tables and Loading Documents into JSON Tables.

deletettl The number of seconds to wait before purging the delete operations. The time-to-live for deletes should be greater than the amount of time that it takes replicated operations to reach replicas. By default, the value is 24 hours for tables configured for replication. If the table is not configured for replication, the default is 0 hours.
packperm The Access Control Expression that controls who can pack table regions. By default, permission is given to the user ID that was used to create the table.
bulkloadperm The Access Control Expression that controls who can load this table with bulk loads if the table was created with bulk load support. By default, permission is given to the user ID that was used to create the table.
splitmergeperm

The Access Control Expression that controls who can take the following actions:

  • Run the table region split and table region merge commands to split the table into regions or to merge regions of the table together.
  • Change the value of regionsizemb.

By default, permission is given to the user ID that was used to create the table.

createrenamefamilyperm The Access Control Expression that controls who can create column families for this table or rename existing column families. By default, permission is given to the user ID that was used to create the table.
deletefamilyperm The Access Control Expression that defines access to delete column families for this table. Delimit the expression with single-quotation marks. By default, permission is given to the user ID that was used to create the table.
adminaccessperm The Access Control Expression that controls who can view and edit the permissions for this table. By default, permission is given to the user ID that was used to create the table.
replperm The Access Control Expression that controls who can set up replication either to or from a table. By default, permission is given to the user ID that is used to create the table.

defaultversionperm

The default Access Control Expression for the version permission on new column families that are created in this table. If no value is specified, the default is u:<username of the table creator>. This value of the parameter versionperm in the table cf create and table cf edit commands overrides this value.
Note: This permission is not applicable to JSON tables. Versioning is not supported for JSON documents.
defaultcompressionperm Applies to binary tables only: The default Access Control Expression for the compression permission on new column families that are created in this table. If no value is specified, the default is u:<username of the table creator>. This value of the parameter compressionperm in the table cf create and table cf edit commands overrides this value.

defaultmemoryperm

The default Access Control Expression for the memory permission on new column families that are created in this table. If no value is specified, the default is u:<username of the table creator>. This value of the parameter memoryperm in the table cf create and table cf edit commands overrides this value.

defaultreadperm The default Access Control Expression for the read permission on new column families that are created in this table. If no value is specified, the default is u:<username of the table creator>. This value of the parameter readperm in the table cf create and table cf edit commands overrides this value.

For more information about this permission as it applies to JSON tables, see Granting or Denying Access to Fields with Access-Control Expressions.

defaultwriteperm The default Access Control Expression for the write permission on new column families that are created in this table. If no value is specified, the default is u:<username of the table creator>. This value of the parameter writeperm in the table cf create and table cf edit commands overrides this value.

For more information about this permission as it applies to JSON tables, see Granting or Denying Access to Fields with Access-Control Expressions.

defaulttraverseperm Applies to JSON tables only: The default Access Control Expression for the traverse permission on new column families. For more information about this permission, see Granting or Denying Access to Fields with Access-Control Expressions.
defaultappendperm Applies to binary tables only: The default Access Control Expression for the append permission on new column families that are created in this table. If no value is specified, the default is u:<username of the table creator>. This value of the parameter appendperm in the table cf create and table cf edit commands overrides this value.
Changes the value of regionsizemb for the mytable table:
CLI
maprcli table edit -path /volume1/mytable -regionsizemb 8192
REST
https://r1n1.sj.us:8443/rest/table/edit?path=%2Fvolume1%2Fmytable&regionsizemb=8192