streamtool resetinstancemetrics

Usage

resetinstancemetrics [-d,--domain-id <did>] [-i,--instance-id <instance>] [--services <service>,...] [-U,--User <user>] [-h,--help] [--trace <level>] [-v,--verbose <level>] [--zkconnect {<host>:<port>},... | --embeddedzk]

The streamtool resetinstancemetrics command resets the instance-related Java virtual machine (JVM) metrics for one or more leader instance services.

Authority

You must have write authority for the instance object. By default, the DomainAdministrator and InstanceAdministrator roles have this authority. For more information about access control lists, see streamtool getacl.

Description

Use this command to reset the JVM metrics for one or more leader instance services. By default, the metrics are reset for all instances. To reset metrics for a specific instance, use the -i,--instance-id option.

For more information about metrics, see the product documentation.

Options

-d,--domain-id <did>
Specifies the domain identifier.

If you do not specify this option, Streams uses the domain name that is set in the STREAMS_DOMAIN_ID environment variable. By default, that domain name is StreamsDomain. If you are using the interactive streamtool interface, it uses the name of the active domain for the current streamtool session or else it prompts you for the domain name.

The active domain for the current streamtool session is set every time that you successfully run a streamtool command with a -d or --domain-id option. Alternatively, you can run the streamtool domain command in the interactive interface.

--embeddedzk

Specifies to use the embedded copy of ZooKeeper. This option is not supported within the interactive streamtool interface.

If you are not using the interactive streamtool interface and you do not specify either this option or the --zkconnect option, Streams uses the ZooKeeper connection that is associated with the active domain or the domain that is specified in the --domain-id option. Streams determines which connection maps to the domain by using cached information about the domains. In this scenario, if the domain identifier is not unique in the Streams configuration cache, the command fails.

-h,--help
Specifies to show the command syntax.
-i,--instance-id <instance>
Specifies the instance identifier.

If you do not specify an instance, the metrics are reset for all instances.

--services <service>
Specifies the instance-related services whose metrics will be reset. If you do not specify a service, metrics are reset for all services. The following instance service names are valid:
  • app
  • sam
  • srm
  • view
--trace <level>
Specifies the trace setting. The following valid levels are listed in order of increasing verbosity, which is to say that the first level in the list generates the least amount of information:
  • off
  • error
  • warn
  • info
  • debug
  • trace
The default value is off.
-U,--User <user>
Specifies an Streams user ID that has authority to run the command.
-v,--verbose <level>
Specifies to provide more detailed command output. The verbosity level can be 0-3, where 0 disables detailed reporting and each increment provides more detailed output.
--zkconnect <{<host>:<port>},...>

The name of one or more host and port pairs that specify the configured ZooKeeper servers. This option is not supported within the interactive streamtool interface.

If you are not using the interactive streamtool interface and you do not specify this option, Streams tries to use:

  1. The --embeddedzk option
  2. The value from the STREAMS_ZKCONNECT environment variable
  3. A ZooKeeper connection string that is derived from cached information about the current domain.