streamtool updatepe

Usage

updatepe [-d,--domain-id <did>] [-i,--instance-id <instance>] {[-j,--jobs <job-id>,...] | [--pes <pe-id>,...] | [--jobnames <job-names>,...]} -C,--config <config-setting> ... [-U,--User <user>] [-h,--help] [--trace <level>] [-v,--verbose <level>] [--zkconnect {<host>:<port>},... | --embeddedzk]

The streamtool updatepe command updates the configuration settings for one or more processing elements (PEs).

Authority

You must have add and delete authority for the appropriate jobgroup_name instance object. By default, the DomainAdministrator and InstanceAdministrator roles have this authority. The user who submits a job also has this authority. For more information about access control lists, see the streamtool getacl and streamtool lsjobpermission commands.

Description

An application configuration setting must be specified by using the -C or --config option. You can use that option to change the trace settings for running processing elements (PEs).

Options

-C,--config <config-setting>
Specifies the name of one of the following application configuration settings and its value:
tracing
Specifies the PE 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
  • warning
  • info
  • debug
  • trace
The default value is error.
For example: --config tracing=off.
-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 this option, Streams uses the instance identifier that is set in the STREAMS_INSTANCE_ID environment variable. By default, that instance identifier is StreamsInstance. If you are using the interactive streamtool interface, it tries to use an instance ID that you specified in a previous command. If no such value is found, the command uses the STREAMS_INSTANCE_ID environment variable. Alternatively, you can run the streamtool instance command in the interactive interface.

-j,--jobs <job-id>
Specifies a list of job IDs, which are delimited by commas.
--jobnames <job-names>
Specifies a list of job names, which are delimited by commas.
--pes <pe-id>
Specifies a list of processing elements (PEs).
--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.

Examples

The following example changes the trace settings for PE ID 5:

$streamtool updatepe --pes 5 --config tracing=warn