Node Management

Node Overview

By far the node level managed entity is where you can manage the most content in the Clusters view. These are the top-level entities. Each is explained in detail below.

Node Level Entity Management

The configuration tab in the right pane displays the properties and values applicable to the selected node-level managed entity.

The following tabs are available to manage the node:

Globaltransaction tab

Each tab displays the properties and values applicable to the selected configuration object.

To manage the configuration object, the following epadmin command targets are available:

  • abort: cancel the local transaction initiated by the global transaction.

  • commit: commit the local transaction initiated by the global transaction.

  • display: display global transactions running on this node.

Supply the necessary parameters per command target and click Execute. Results are shown below for the display command target.

Node tab

Each tab displays the properties and values applicable to the selected configuration object.

To manage the configuration object, the following epadmin command targets are available:

  • display: display node information

  • getadminport: gets the administration port

  • install: installs a node

  • kill: forcibly kill a node

  • remove: remove a stopped node

  • start: start a stopped node

  • stop: stop a running node

  • terminate: stop the node coordinator

Supply the necessary parameters per command target and click Execute. Results are shown below for the display command target.

Snapshot tab

Each tab displays the properties and values applicable to the selected configuration object.

Use the snapshot tab to create a snapshot archive, which contains the log files, configuration files, and other node artifacts for the node. The created archive is a zip file, named [destination]/<nodename>.<timestamp>.zip. If [--description] is specified, it is placed in a description.txt file, which is included in the snapshot archive. If the node is not currently operational, the installpath parameter may be used to specify the location of the node.

To manage the configuration object, the following epadmin command targets are available:

  • create: creates a snapshot archive

Supply the necessary parameters per command target and click Execute. Results for successful or failed snapshot creation are shown.

Version tab

Each tab displays the properties and values applicable to the selected configuration object.

To manage the configuration object, the following epadmin command targets are available:

  • display: display product version

Supply the necessary parameters per command target and click Execute. Results are shown for the Spotfire® Streaming product version.

Configuration Managed Entity

Expand a Configuration managed entity to drill down to the desired configuration object. As with everything else in the Clusters view, configurable objects, including the default ones, vary greatly depending on the application currently available in the installed node.

The configuration tab in the right pane displays the properties and values applicable to the selected configuration object.

This example shows epadmin command targets available to the default-realm-config configuration object.

To manage the configuration object, the following epadmin command targets are available:

  • activate: activate configuration

  • clear history: clear configuration state change history

  • deactivate: deactivate configuration

  • display: display loaded configuration

  • export: export configuration to a file

  • generate: generate a sample configuration

  • list: list available configuration types and their root objects

  • load: load a configuration file

  • remove: remove configuration

Supply the necessary parameters per command target and click Execute. Results are shown below for the display command target.

Engine Managed Entity

The Engine managed entity displays the top-level engine information for the selected application. Below the top-level are

Expand the Engine managed entity to drill down to the desired configuration object. As with everything else in the Clusters view, configurable objects vary greatly depending on the application currently available in the installed node.

Selecting the top-level application under the engine shows the following tabs in the right pane.

  • connection: manage connections

  • engine: manage application engines

  • logging: manage engine Logback logging configurations

Containers

A StreamBase container is a structure that encapsulates and names a single EventFlow module, complete with Input Stream or adapter entry points and Output Stream or adapter exit points. There is one EventFlow module per container, and each container's name serves as a handle for that module's resources. Multiple containers and modules can be run in a single EventFlow or LiveView engine process, and you can share resources between containers.

Containers displayed in the Cluster view feature a variety of managed entities that vary by application per running node. Drill down as needed to explore configuration details and commands you can run there. The following example shows the left pane's configurable entities for the running Best Bids and Asks sample:

Selecting the default or system container in the left pane displays similar information in the right pane:

To manage containers, the following epadmin command targets are available:

  • add: add container

  • connect: connect containers

  • disconnect: disconnect containers

  • display: display containers

  • modify: modify container

  • remove: remove container

  • restart: restart container

  • resume: resume container

  • suspend: suspend container

Supply the necessary parameters per command target and click Execute. Results are shown below for the display command target.

Connection Tab

Each tab displays the properties and values applicable to the selected configuration object.

To manage the connection tab, the following epadmin command targets are available:

  • close: close connection

  • display: display connection information

Supply the necessary parameters per command target and click Execute. Results are shown below for the display command target.

Engine Tab

Each tab displays the properties and values applicable to the selected configuration object.

To manage the engine tab, the following epadmin command targets are available:

  • display: display one or all engines

  • start: start one or all engines

  • stop: stop one or all engines

  • suspend: suspend one or all suspendable engines

Supply the necessary parameters per command target and click Execute. Results are shown below for the display command target.

Logging Tab

Each tab displays the properties and values applicable to the selected configuration object.

To manage the engine tab, the following epadmin command targets are available:

  • display: display log levels

  • export: export current user-defined logging configuration

  • reset: reset logging configuration

  • set: change current logging configuration

  • tail: tail log messages

Supply the necessary parameters per command target and click Execute. Results are shown below for the display command target.

Metrics Managed Entities

Expand the Metrics managed entity to drill down to the desired configuration object. As with everything else in the Clusters view, configurable objects vary greatly depending on the application currently available in the installed node.

Selecting the top-level application under the engine shows the following tabs in the right pane.

  • metric: manage and display metrics

  • statistics: control and display statistics

Metric Tab

Each tab displays the properties and values applicable to the selected configuration object.

To manage the metric tab, the following epadmin command targets are available:

  • display: display a list of registered Metrics

  • read: read a specific metric

  • reset: reset a specific metric

Supply the necessary parameters per command target and click Execute. Results are shown below for the display command target.

Statistics Tab

Each tab displays the properties and values applicable to the selected configuration object.

To manage the statistics tab, the following epadmin command targets are available:

  • clear: clear current statistics values

  • disable: disable collection of statistics

  • display: display statistics values

  • enable: enable collection of statistics

  • snapshot: collect and display a statistics snapshot

  • status: display current collection status for statistics that may be enabled and disabled

  • supported: display supported statistics names

Supply the necessary parameters per command target and click Execute. Results are shown below for the supported command target.

Models Managed Entity

Each tab displays the properties and values applicable to the selected configuration object, if any.

Named Caches Managed Entity

Each tab displays the properties and values applicable to the selected configuration object. One child entity is available for Named Caches:

  • cache: manage named caches

Varies by selected managed entity in the Cluster view.

To manage the cache tab, the following epadmin command targets are available:

  • add: add a type to the cache

  • create: create a cache

  • display: display cache information

  • remove: remove a cache

  • set: set or change the cache size

Supply the necessary parameters per command target and click Execute. Results are shown below for the display command target.

Security Managed Entity

Expand the Security managed entity to drill down to the desired configuration object. As with everything else in the Cluster view, configurable objects vary greatly depending on the security configurations available in the installed node.

See this page for more information regarding Spotfire Data Streams best security practices.

Selecting a security managed entity shows the following tabs in the right pane for the default authentication realm.

  • authentication: node authentication administration commands

  • password: change user passwords in a local authentication realm

  • realm: authentication realm management commands

  • secret: master secret commands

  • trusted: trusted host management

  • user: manage users in a local authentication realm

Authentication Tab

The following shows the default authentication realm details.

To manage the authentication tab, the following epadmin command targets are available:

  • display: displays node administration token authentication information

  • reset: resets node administration authentication to its initial state

  • update: updates the keys used by node administration token authentication

Supply the necessary parameters per command target and click Execute. Results are shown below for the display command target.

Password Tab

The following shows the default password details.

To manage the password tab, the following epadmin command targets are available:

  • change: change a user password in a local authentication realm

Supply the necessary parameters per command target and click Execute to display the query results.

Realm Tab

Use the realm tab to configure and manage the node's authentication realms.

To manage the realm tab, the following epadmin command targets are available:

  • backup: back up the users in a local authentication realm, writing the backup data to a specified local file

  • display: display an authentication realm

  • getadmin: return authentication realm being used for node administration

  • restore: restore the users in a local authentication realm from a local backup file

  • setadmin: set the authentication realm used for node administration

Supply the necessary parameters per command target and click Execute to display the query results.

Results are shown below for the display command target.

Secret Tab

Use the secret tab to configure and manage the node's master secrets.

The following shows the secret tab details.

To manage the secret tab, the following epadmin command targets are available:

  • create: generates a master secret and stores it in the specified keystore file

  • encrypt: encrypts the specified data using the master secret in the specified keystore file

  • load: load a master secret into a node. The command fails if the node already has a master secret

Supply the necessary parameters per command target and click Execute to display the query results.

Results are shown below for the create command target.

Output:

Master secret generated and stored in system\webservice\ws-file-cache\sbuser\sbnode.cluster.create.secret.0

Trusted Tab

Use the trusted tab to configure and manage the node's trusted hosts configuration.

The following shows the trusted tab details.

To manage the trusted tab, the following epadmin command targets are available:

  • display: display trusted hosts

Supply the necessary parameters per command target and click Execute to display the query results.

Results are shown below for the display command target.

User Tab

Use the user tab to configure and manage the node's user configuration.

The following shows the user tab details.

To manage the user tab, the following epadmin command targets are available:

  • add: add a new user to a local authentication realm

  • display: display users in one or all local authentication realms

  • remove: remove a user from a local authentication realm

  • update: update an existing user in a local authentication realm

Supply the necessary parameters per command target and click Execute to display the query results.

Results are shown below for the display command target.

Tuning Managed Entity

Use the user tab to configure and manage the node's tuning options.

The following shows the tunable tab details for the selected datatransport.deferredWritesEnabled managed entity.

To manage the user tab, the following epadmin command targets are available:

  • get: get tunable

  • reset: reset tunable to initial value

  • set: set tunable

Supply the necessary parameters per command target and click Execute to display the query results.

Results are shown below for the get command target.

Web Endpoints

Use the user tab to configure and manage the node's web server and deployed web services.

The following shows the details for the selected endpoint.

To manage the web tab, the following epadmin command targets are available:

  • display: display status of web server or web services

  • start: start web server or web services

  • stop: stop web server or web services

Supply the necessary parameters per command target and click Execute to display the query results.

Results are shown below for the display command target.