RolesResource Resource

GET /clusters/{clusterName}/services/{serviceName}/roles

Lists all roles of a given service that match the provided filter.

Request Parameters
name type description default
clusterName path n/a
serviceName path n/a
filter query Optional query to filter the roles by.

The query specifies the intersection of a list of constraints, joined together with semicolons (without spaces). For example: hostname==host1.abc.com;type==DATANODE

Currently supports filtering by:
  • hostname: The hostname of the host the role is running on.
  • hostId: The unique identifier of the host the role is running on.
  • type: The role's type.
Response Body
media type data type description
application/json ApiRoleList (JSON) List of roles.

GET /clusters/{clusterName}/services/{serviceName}/roles

Lists all roles of a given service.

Request Parameters
name type description default
clusterName path n/a
serviceName path n/a
Response Body
media type data type description
application/json ApiRoleList (JSON) List of roles.

GET /clusters/{clusterName}/services/{serviceName}/roles

Lists all roles of a given service.

Request Parameters
name type description default
clusterName path n/a
serviceName path n/a
filter query Optional query to filter the roles by.

The query specifies the intersection of a list of constraints, joined together with semicolons (without spaces). For example: hostname==host1.abc.com;type==DATANODE

Currently supports filtering by:
  • hostname: The hostname of the host the role is running on.
  • hostId: The unique identifier of the host the role is running on.
  • type: The role's type.
view query DataView for getting roles. Defaults to 'summary'. summary
Response Body
media type data type description
application/json ApiRoleList (JSON) List of roles.

POST /clusters/{clusterName}/services/{serviceName}/roles

Create new roles in a given service.

Service Type Available Role Types
HDFS (CDH3) NAMENODE, DATANODE, SECONDARYNAMENODE, BALANCER, GATEWAY
HDFS (CDH4) NAMENODE, DATANODE, SECONDARYNAMENODE, BALANCER, HTTPFS, FAILOVERCONTROLLER, GATEWAY, JOURNALNODE
HDFS (CDH5) NAMENODE, DATANODE, SECONDARYNAMENODE, BALANCER, HTTPFS, FAILOVERCONTROLLER, GATEWAY, JOURNALNODE, NFSGATEWAY
MAPREDUCE JOBTRACKER, TASKTRACKER, GATEWAY, FAILOVERCONTROLLER,
HBASE MASTER, REGIONSERVER, GATEWAY, HBASETHRIFTSERVER, HBASERESTSERVER
YARN RESOURCEMANAGER, NODEMANAGER, JOBHISTORY, GATEWAY
OOZIE OOZIE_SERVER
ZOOKEEPER SERVER
HUE (CDH3) HUE_SERVER, BEESWAX_SERVER, KT_RENEWER, JOBSUBD
HUE (CDH4) HUE_SERVER, BEESWAX_SERVER, KT_RENEWER
HUE (CDH5) HUE_SERVER, KT_RENEWER
HUE (CDH5 5.5+) HUE_SERVER, KT_RENEWER, HUE_LOAD_BALANCER
FLUME AGENT
IMPALA (CDH4) IMPALAD, STATESTORE, CATALOGSERVER
IMPALA (CDH5) IMPALAD, STATESTORE, CATALOGSERVER
HIVE HIVESERVER2, HIVEMETASTORE, WEBHCAT, GATEWAY
SOLR SOLR_SERVER, GATEWAY
SQOOP SQOOP_SERVER
SQOOP_CLIENT GATEWAY
SENTRY SENTRY_SERVER
ACCUMULO16 GARBAGE_COLLECTOR, GATEWAY, ACCUMULO16_MASTER, MONITOR, ACCUMULO16_TSERVER, TRACER
KMS KMS
KS_INDEXER HBASE_INDEXER
SPARK_ON_YARN GATEWAY, SPARK_YARN_HISTORY_SERVER
When specifying roles to be created, the names provided for each role must not conflict with the names that CM auto-generates for roles. Specifically, names of the form "--" cannot be used unless the is the same one CM would use. If CM detects such a conflict, the error message will indicate what is safe to use. Alternately, a differently formatted name should be used. Since API v6: The role name can be left blank to allow CM to generate the name.

Request Parameters
name type description default
clusterName path n/a
serviceName path n/a
Request Body
media type data type description
application/json ApiRoleList (JSON) Roles to create.
Response Body
media type data type description
application/json ApiRoleList (JSON) List of created roles.

POST /clusters/{clusterName}/services/{serviceName}/roles/bulkDelete

Bulk delete roles in a particular service by name. Fails if any role cannot be found.

Request Parameters
name type description default
clusterName path n/a
serviceName path n/a
Request Body
media type data type description
application/json ApiRoleNameList (JSON) list of role names to be deleted
Response Body
media type data type description
application/json ApiRoleList (JSON) list of roles deleted, index-aligned with roleNames. Export view.

DELETE /clusters/{clusterName}/services/{serviceName}/roles/{roleName}

Deletes a role from a given service.

Request Parameters
name type description default
clusterName path n/a
roleName path The role name. n/a
serviceName path n/a
Response Body
media type data type description
application/json ApiRole (JSON) The details of the deleted role.

GET /clusters/{clusterName}/services/{serviceName}/roles/{roleName}

Retrieves detailed information about a role.

Request Parameters
name type description default
clusterName path n/a
roleName path The role name. n/a
serviceName path n/a
Response Body
media type data type description
application/json ApiRole (JSON) The details of the role.

GET /clusters/{clusterName}/services/{serviceName}/roles/{roleName}

Retrieves detailed information about a role.

Request Parameters
name type description default
clusterName path n/a
roleName path The role name. n/a
serviceName path n/a
view query The view to materialize. Defaults to 'full'. full
Response Body
media type data type description
application/json ApiRole (JSON) The details of the role.

GET /clusters/{clusterName}/services/{serviceName}/roles/{roleName}/commands

List active role commands.

Request Parameters
name type description default
clusterName path n/a
roleName path The role to start. n/a
serviceName path n/a
view query The view of the data to materialize, either "summary" or "full". summary
Response Body
media type data type description
application/json ApiCommandList (JSON) A list of active role commands.

GET /clusters/{clusterName}/services/{serviceName}/roles/{roleName}/commandsByName

Lists all the commands that can be executed by name on the provided role.

Request Parameters
name type description default
clusterName path n/a
roleName path the role name. n/a
serviceName path n/a
Response Body
media type data type description
application/json ApiCommandMetadataList (JSON) a list of command metadata objects.

GET /clusters/{clusterName}/services/{serviceName}/roles/{roleName}/config

Retrieves the configuration of a specific role. Note that the "full" view performs validation on the configuration, which could take a few seconds on a large cluster (around 500 nodes or more).

Request Parameters
name type description default
clusterName path n/a
roleName path The role to look up. n/a
serviceName path n/a
view query The view of the data to materialize, either "summary" or "full". summary
Response Body
media type data type description
application/json ApiConfigList (JSON) List of role configuration parameters.

PUT /clusters/{clusterName}/services/{serviceName}/roles/{roleName}/config

Updates the role configuration with the given values.

If a value is set in the given configuration, it will be added to the role's configuration, replacing any existing entries. If a value is unset (its value is null), the existing configuration for the attribute will be erased, if any.

Attributes that are not listed in the input will maintain their current values in the configuration.

Request Parameters
name type description default
clusterName path n/a
roleName path The role to modify. n/a
serviceName path n/a
message query Optional message describing the changes. n/a
Request Body
media type data type description
application/json ApiConfigList (JSON) Configuration changes.
Response Body
media type data type description
application/json ApiConfigList (JSON) The new service configuration.

GET /clusters/{clusterName}/services/{serviceName}/roles/{roleName}/metrics

This method has been deprecated. This endpoint is not supported as of v6. Use the timeseries API instead. To get all metrics for a role with the timeseries API use the query:

'select * where roleName = $ROLE_NAME'.

To get specific metrics for a role use the query:

'select $METRIC_NAME1, $METRIC_NAME2 where roleName = $ROLE_NAME'.

For more information see the tsquery language documentation.

Fetch metric readings for a particular role.

By default, this call will look up all metrics available for the role. If only specific metrics are desired, use the metrics parameter.

By default, the returned results correspond to a 5 minute window based on the provided end time (which defaults to the current server time). The from and to parameters can be used to control the window being queried. A maximum window of 3 hours is enforced.

When requesting a "full" view, aside from the extended properties of the returned metric data, the collection will also contain information about all metrics available for the role, even if no readings are available in the requested window.

Request Parameters
name type description default
clusterName path n/a
roleName path The name of the role. n/a
serviceName path n/a
from query Start of the period to query. n/a
metrics query Filter for which metrics to query. n/a
to query End of the period to query. now
view query The view of the data to materialize, either "summary" or "full". summary
Response Body
media type data type description
application/json ApiMetricList (JSON) List of readings from the monitors.

DELETE /clusters/{clusterName}/services/{serviceName}/roles/{roleName}/tags

Remove the tags associated with the role. Tag names beginning with the prefix _cldr_ (case insensitive) are reserved for internal use by Cloudera.

Request Parameters
name type description default
clusterName path n/a
roleName path Name of the role to remove tags from n/a
serviceName path n/a
Request Body
media type data type description
application/json array of ApiEntityTag (JSON) A list of tags to remove from the role
Response Body
media type data type description
application/json array of ApiEntityTag (JSON) A list of tags that were removed from the role

GET /clusters/{clusterName}/services/{serviceName}/roles/{roleName}/tags

Returns the tags associated with this role. Tag names beginning with the prefix _cldr_ (case insensitive) are reserved for internal use by Cloudera.

Request Parameters
name type description default
clusterName path n/a
roleName path The name of the role n/a
serviceName path n/a
limit query Number of tags 10
offset query Index of the first tag to retrieve 0
Response Body
media type data type description
application/json array of ApiEntityTag (JSON) A list of tags associated with the role

PUT /clusters/{clusterName}/services/{serviceName}/roles/{roleName}/tags

Attach tags to the role. Tag names beginning with the prefix _cldr_ (case insensitive) are reserved for internal use by Cloudera.

Request Parameters
name type description default
clusterName path n/a
roleName path Name of the role n/a
serviceName path n/a
Request Body
media type data type description
application/json array of ApiEntityTag (JSON) List of tags to add to the role
Response Body
media type data type description
application/json array of ApiEntityTag (JSON) A list of tags that were added to the role

POST /clusters/{clusterName}/services/{serviceName}/roles/{roleName}/commands/enterMaintenanceMode

Put the role into maintenance mode. This is a synchronous command. The result is known immediately upon return.

Available since API v2.

Request Parameters
name type description default
clusterName path n/a
roleName path The role name. n/a
serviceName path n/a
Response Body
media type data type description
application/json ApiCommand (JSON) Synchronous command result.

POST /clusters/{clusterName}/services/{serviceName}/roles/{roleName}/commands/exitMaintenanceMode

Take the role out of maintenance mode. This is a synchronous command. The result is known immediately upon return.

Available since API v2.

Request Parameters
name type description default
clusterName path n/a
roleName path The role name. n/a
serviceName path n/a
Response Body
media type data type description
application/json ApiCommand (JSON) Synchronous command result.

POST /clusters/{clusterName}/services/{serviceName}/roles/{roleName}/commands/impalaDiagnostics

Collects diagnostics data for an Impala role.

Available since API v31.

Request Parameters
name type description default
clusterName path n/a
roleName path The role name. n/a
serviceName path n/a
Request Body
media type data type
application/json ApiImpalaRoleDiagnosticsArgs (JSON)
Response Body
media type data type description
application/json ApiCommand (JSON) Synchronous command result.

GET /clusters/{clusterName}/services/{serviceName}/roles/{roleName}/logs/full

Retrieves the log file for the role's main process.

If the role is not started, this will be the log file associated with the last time the role was run.

Log files are returned as plain text (type "text/plain").

Request Parameters
name type description default
clusterName path n/a
roleName path The role to fetch logs from. n/a
serviceName path n/a
Response Body
media type data type description
text/plain (custom) Contents of the role's log file.

GET /clusters/{clusterName}/services/{serviceName}/roles/{roleName}/logs/stacks

Retrieves the stacks log file, if any, for the role's main process. Note that not all roles support periodic stacks collection. The log files are returned as plain text (type "text/plain").

Request Parameters
name type description default
clusterName path n/a
roleName path The role to fetch stacks logs from. n/a
serviceName path n/a
Response Body
media type data type description
text/plain (custom) Contents of the role's log file.

GET /clusters/{clusterName}/services/{serviceName}/roles/{roleName}/logs/stacksBundle

Download a zip-compressed archive of role stacks logs. Note that not all roles support periodic stacks collection.

Request Parameters
name type description default
clusterName path n/a
roleName path The role to fetch the stacks logs bundle from. n/a
serviceName path n/a
Response Body
media type data type description
application/octet-stream (custom) The archive data.

GET /clusters/{clusterName}/services/{serviceName}/roles/{roleName}/logs/stderr

Retrieves the role's standard error output.

If the role is not started, this will be the output associated with the last time the role was run.

Log files are returned as plain text (type "text/plain").

Request Parameters
name type description default
clusterName path n/a
roleName path The role to fetch stderr from. n/a
serviceName path n/a
Response Body
media type data type description
text/plain (custom) Contents of the role's standard error output.

GET /clusters/{clusterName}/services/{serviceName}/roles/{roleName}/logs/stdout

Retrieves the role's standard output.

If the role is not started, this will be the output associated with the last time the role was run.

Log files are returned as plain text (type "text/plain").

Request Parameters
name type description default
clusterName path n/a
roleName path The role to fetch stdout from. n/a
serviceName path n/a
Response Body
media type data type description
text/plain (custom) Contents of the role's standard output.