Run Process Commands in BMC Remedy AR System

In the dynamic world of IT Service Management (ITSM) and enterprise application development, the ability to trigger external actions or internal server processes is paramount. BMC Remedy AR System, and its evolution into BMC Helix ITSM, provides robust mechanisms to achieve this. One of the most versatile and powerful tools at your disposal is the Run Process action. This article will delve deep into what the Run Process action is, how it’s used, and the nuances of its implementation, particularly when interacting with the AR System server itself.

Understanding the Run Process Action

The Run Process action is a cornerstone of workflow automation within BMC Remedy AR System. It allows you to execute commands that exist outside the immediate context of a form or a ticket. Think of it as a bridge that connects your Remedy workflow to the broader operating system or other applications. This action can be triggered from several key areas within the AR System:

Active Links: These are typically client-side workflows that respond to user actions like clicking a button or changing a field. Running a process here might involve launching a local application on the user’s machine.
Filters: These are server-side workflows that execute automatically when a record is submitted, modified, or deleted. Running a process here often means invoking server-side scripts or utilities.
Escalations: These are time-based workflows that trigger actions on records that meet specific criteria after a certain period. Running a process from an escalation can automate recurring tasks.

The core of the Run Process action lies in its Command Line field. Whatever you specify here is what the system will attempt to execute. This opens up a world of possibilities, from sending faxes and logging detailed system events to invoking complex AR System server operations.

What Kinds of Commands Can You Run?

The flexibility of the Run Process action means you’re not limited to just AR System-specific commands. You can:

Run AR System Application Commands: These are built-in commands that interact directly with the AR System server’s functionality. A prime example is the arsignal utility, which we’ll explore in detail.
Execute Workflow Process Commands: These are commands that drive specific workflow processes within AR System, often involving interacting with forms and data.
Invoke External Programs: You can launch any executable program installed on the client or server, provided the necessary permissions are in place. This could be anything from a simple notepad.exe to a custom-written script or a third-party application.

The Power of `arsignal`: Interacting with the AR System Server

When you need to tell the AR System server to reload certain pieces of information without restarting the entire server, the arsignal utility is your go-to tool. It’s a powerful command-line utility that allows for fine-grained control over server data caches and definitions. The arsignal command can be executed on any computer where it’s accessible, including the AR System server itself or a client machine that has the AR System Administration Console installed.

The general syntax for arsignal is:

arsignal [-options] serverName[:port][sigArgument]

serverName: This is the name of the AR System server you want to communicate with.
:port: This is optional. If your AR System server isn’t registered with the AR System Portmapper (a common scenario in more complex network setups), you’ll need to specify the TCP port it’s listening on.
sigArgument: This is a specific signal or argument that dictates what action arsignal should perform. It’s only applicable for certain options.

Key `arsignal` Options Explained

Let’s break down the most commonly used options for the arsignal utility:

-a — Update Alert User Information
When you use -a, you’re telling the AR System server to refresh its internal alert user information. The sigArgument here would typically be the username whose alert information needs updating. This is crucial when user-specific alert configurations change and you want those changes to take effect immediately for that user without a server restart.
Example: To update alert information for a user named “jdoe” on the server “MyRemedyServer”:
arsignal -a MyRemedyServer jdoe
-b — Reload Archive Definitions
This option instructs the AR System server to re-cache and reload all archive definitions. Archive definitions are part of how AR System manages historical data, allowing older records to be moved to separate storage. If you’ve made changes to your archiving configuration and want them to apply immediately, this is the command to use.
Example: To reload archive definitions on “MyRemedyServer”:
arsignal -b MyRemedyServer
-c — Reload Configuration File
This is a very common and important option. It forces the AR System server to re-read its configuration file, typically ar.conf (on Unix/Linux) or ar.cfg (on Windows). Many server-level settings, like thread configurations, database connection pools, and logging levels, are stored here. If you modify these settings directly in the configuration file, using -c is essential to make those changes active.
Example: To reload the configuration file on “MyRemedyServer”:
arsignal -c MyRemedyServer
Important Note: Reloading the configuration file via arsignal -c is generally safer than restarting the entire AR System server for configuration changes, as it causes less disruption to active user sessions and ongoing operations.
-d — Transfer Signal to DSO Process
This option is used when you need to communicate with the Distributed Server Option (DSO) process. DSO is an older technology for replicating data between AR System servers. If you’re managing DSO configurations or need to trigger a DSO-related action, this signal is used.
Example: To signal the DSO process on “MyRemedyServer”:
arsignal -d MyRemedyServer
-e — Reload Escalation Definitions
Similar to reloading archive definitions, this option forces the AR System server to re-cache and reload all defined escalations. If you’ve made modifications to your escalation configurations (e.g., changed schedules, conditions, or actions) and want them to be recognized by the server, this command is necessary.
Example: To reload escalation definitions on “MyRemedyServer”:
arsignal -e MyRemedyServer
-g — Reload Group and Data Dictionary Information
This command tells the AR System server to re-fetch group and data dictionary (schema definition) information from the database. This is important if you’ve made direct database changes to group memberships or added/modified schemas that the AR System might not be aware of.
Example: To reload group and data dictionary info on “MyRemedyServer”:
arsignal -g MyRemedyServer
-l — Reload License Information
This option is used to refresh the AR System server’s understanding of its licensing. If you’ve recently purchased new licenses or modified existing ones, this command ensures the server acknowledges the changes without requiring a restart.
Example: To reload license information on “MyRemedyServer”:
arsignal -l MyRemedyServer
-m — Reload Computed Group Information
This command forces the AR System server to re-calculate and reload any group information that is dynamically computed. This might involve group memberships derived from other groups or complex role-based assignments.
Example: To reload computed group information on “MyRemedyServer”:
arsignal -m MyRemedyServer
-p — Transfer Signal to Application Process
This signal is used to communicate with specific AR System application processes. The sigArgument here would typically specify which application process to signal, often used for managing specific AR System plugins or services.
Example: To signal a specific application process (e.g., ‘MyAppProcess’) on “MyRemedyServer”:
arsignal -p MyRemedyServer MyAppProcess
-r — Recache Definitions from Database
This is a broad command that tells the AR System server to refresh its internal caches of various definitions (forms, fields, workflows, etc.) by querying the database. It’s a more general refresh than some of the specific options.
Example: To recache definitions on “MyRemedyServer”:
arsignal -r MyRemedyServer
-u — Reload User Information
This command specifically reloads user information from the database. If user details, permissions, or other attributes have been updated (either directly in the database or through other means), this signal ensures the AR System server has the latest user data.
Example: To reload user information on “MyRemedyServer”:
arsignal -u MyRemedyServer

Run Process vs. PERFORM-ACTION-APPLY: A Practical Distinction

A common point of confusion for developers is the difference between the Run Process action (specifically when used with commands like PERFORM-ACTION-APPLY) and the standard Commit Changes action.

When you modify a request and then choose to save it, the system performs a save operation. Both “Commit Changes” and “Run Process with PERFORM-ACTION-APPLY” can result in saving a request.

Commit Changes

The Commit Changes action is the most straightforward way to save the modifications made to a record. When you perform a “Commit Changes” in the AR System client (like Developer Studio or the User Tool), the system validates and saves the data. In the server logs, you’ll typically see entries indicating that changes have been committed.

Run Process with PERFORM-ACTION-APPLY

The PERFORM-ACTION-APPLY is a specific internal AR System command that can be invoked using the Run Process action. Essentially, it tells the AR System server to perform the equivalent of a “commit” or “apply” operation on the current record. It’s a way to programmatically trigger the save and validation process.

Key Differences and When to Use Which

While both actions can lead to saving a request, their nature and application differ:

Logging: As you observed, “Commit Changes” often has more explicit logging entries. When using Run Process with an internal command like PERFORM-ACTION-APPLY, the logging might be less direct, focusing on the execution of the command itself rather than a distinct “commit” action.
Dynamic Workflow: This is where Run Process truly shines. The PERFORM-ACTION-APPLY command, when used within a Run Process action, can be dynamically generated. For instance, you might have a field whose value determines whether a save is needed, or what kind of save operation should occur. You can construct the command string for Run Process based on these dynamic values. This is not easily achievable with a standard “Commit Changes” action, which is usually a static workflow step.
External Process Integration: The primary purpose of the Run Process action is to interact with external entities. While PERFORM-ACTION-APPLY is an internal AR System command, other commands executed via Run Process (like sending an email, calling an API, or running a script) are its core strength.
Control and Granularity: Using Run Process gives you finer control. You can explicitly define the command and its arguments. This is more powerful than a simple “Commit Changes” which is a more atomic, built-in operation.

Real-World Example: Imagine a scenario where a user can opt-in to receive notifications. When they check a “Receive Notifications” checkbox and the record is saved, you want to update their user preferences and also ensure the main record is saved. You could use an Active Link that triggers on the “Receive Notifications” field change. This Active Link could first perform a Run Process action with arsignal -u MyRemedyServer (to refresh user info if needed) and then another Run Process with PERFORM-ACTION-APPLY (to save the changes to the current form). This provides more granular control than a single, implicit commit.

Best Practice: For simple saving of a record, the standard “Commit Changes” action is usually sufficient and clearer. However, when you need to trigger this save as part of a more complex, dynamic workflow, or when it needs to be coupled with other external or internal commands, Run Process with PERFORM-ACTION-APPLY becomes the preferred method.

Practical Implementation and Examples

Let’s look at how you might implement the Run Process action in practice within BMC Remedy AR System.

Example 1: Logging a Server Event via `arsignal`

Suppose you want to log a specific event on the AR System server when a certain condition is met, such as a critical incident being created.

Create a new Filter in your AR System workflow.
Set the Trigger condition to match your critical incident creation event.
In the “Actions” tab of the Filter, add a new action.
Select “Run Process” as the action type.
In the “Command Line” field, enter:

"C:\Program Files\BMC Software\ARSystem\arsignal.exe" -c %SERVER_NAME%

(Note: The exact path to arsignal.exe might vary based on your installation. Replace %SERVER_NAME% with the actual name of your AR System server, or a variable that resolves to it.)

Alternatively, if you want to log a specific message that the server should pick up (e.g., for custom logging within AR System), you might use a different utility or a script invoked via Run Process. For arsignal, the command is primarily for signaling the server to reload definitions or cached information.

Example 2: Dynamically Triggering a Save

Imagine a form where a user can make multiple edits, but they only want to commit those changes when they explicitly click a “Finalize” button. We want to ensure that all changes are saved at that point.

Create an Active Link that triggers when a “Finalize” button is clicked.
In the Active Link’s Actions, select “Run Process”.
In the “Command Line” field, enter:

PERFORM-ACTION-APPLY

You could potentially add more conditions here. For instance, if you wanted to ensure certain fields were populated before applying, you might use an “If condition” in the Active Link before the Run Process action.

Example 3: Calling an External Script

Let’s say you need to trigger a Python script on the server to perform some data validation or integration step whenever a new Change Request is submitted.

Create a Filter that fires on “Create” operations for the Change Request form.
In the Filter’s Actions, choose “Run Process”.
In the “Command Line” field, specify the path to your Python interpreter and your script, passing relevant data from the Change Request form as arguments:

"C:\Python39\python.exe" "C:\Scripts\validate_change.py" --changeid "$CHG:Change ID$" --summary "$CHG:Summary$"

(Replace paths and arguments as necessary. The field references like $CHG:Change ID$ are AR System merge fields.)

Troubleshooting Common Issues

When implementing Run Process actions, you might encounter a few common hurdles:

Command Not Found:
Symptom: The Run Process action fails with an error like “command not found” or “file not recognized.”
Troubleshooting:
- Client vs. Server: Ensure you know whether the command is intended to run on the client machine or the AR System server. A command specified in an Active Link typically runs on the client. A command in a Filter or Escalation typically runs on the server.
- Pathing: Verify that the executable is in the system’s PATH environment variable on the target machine, or provide the full, absolute path to the executable.
- Permissions: The user account under which the AR System server (or the client process, if applicable) is running must have the necessary permissions to execute the command and access any files or resources it needs.
Incorrect `arsignal` Syntax:
Symptom: arsignal commands don’t produce the expected results, or errors occur.
Troubleshooting:
- Server Name and Port: Double-check the server name and ensure the port is specified correctly if needed.
- Correct Option: Make sure you are using the correct arsignal option for the desired action. Refer to the documentation for each option.
- `sigArgument`: If an option requires a sigArgument, ensure it is provided and is in the correct format (e.g., a username for -a or -u).
Security Restrictions:
Symptom: The Run Process action seems to execute but does nothing, or fails silently.
Troubleshooting:
- AR System Configuration: In some AR System configurations, security settings might restrict the types of commands that can be run via the Run Process action. Check AR System server configuration files (ar.conf/ar.cfg) and AR System administration settings for any such restrictions.
- Operating System Security: The operating system itself might have security policies (e.g., AppLocker on Windows, SELinux on Linux) that prevent certain executables from running.
Merge Field Issues:
Symptom: When using merge fields (e.g., $FIELD_NAME$ ) in the command line, the values are incorrect or missing.
Troubleshooting:
- Context: Ensure the merge field is valid in the context where the Run Process action is being executed. For example, a field from the current form will resolve correctly in an Active Link or Filter operating on that form.
- Data Type: Be mindful of the data type of the field. Sometimes, complex data types or special characters might require careful handling (e.g., escaping or quoting).

Interview Relevance

Understanding the Run Process action and the arsignal utility is crucial for any AR System developer or administrator. Here’s why:

Problem Solving: Being able to explain how to interact with the AR System server or external applications using Run Process demonstrates strong problem-solving skills.
Workflow Automation: It’s a core component of building sophisticated automated workflows. Interviewers will want to know if you can leverage it effectively.
Server Management: Knowledge of arsignal shows you understand how to manage and maintain the AR System server environment without constant restarts, which is a sign of efficiency.
Distinguishing Actions: The ability to articulate the differences between Run Process, Commit Changes, and other actions (like “Send Email”) highlights a deeper understanding of the platform.
Troubleshooting: Discussing common troubleshooting scenarios for Run Process actions demonstrates practical experience and foresight.

Common Interview Questions:

“When would you use Run Process instead of a Send Email action?”
“Describe a scenario where you would use the arsignal command, and explain a few of its options.”
“What’s the difference between ‘Commit Changes’ and using Run Process with PERFORM-ACTION-APPLY?”
“How do you troubleshoot a Run Process action that isn’t working?”

Official Documentation Links

For the most accurate and detailed information, always refer to the official BMC documentation:

BMC Helix ITSM / BMC Remedy AR System Documentation: https://docs.bmc.com/docs/ars2002/en/home (Note: Please navigate to the specific version of AR System or Helix ITSM you are working with for the most relevant documentation.)
BMC Helix Operations Management Documentation: https://docs.helixops.ai/docs/display/HOMS/BMC+Helix+Operations+Management (While not directly about Run Process, this shows the evolution and broader ecosystem where such actions might be integrated.)

Tip: When searching BMC documentation, use terms like “Run Process action,” “arsignal utility,” “workflow automation,” and “Active Link actions” for specific results.

Conclusion

The Run Process action is a potent and flexible tool in the BMC Remedy AR System arsenal. By understanding its capabilities, the nuances of commands like arsignal, and its distinction from simpler save operations, you can build more intelligent, integrated, and efficient IT Service Management solutions. Whether you’re automating server-side tasks, integrating with external systems, or enabling dynamic user-driven workflows, mastering the Run Process action is a key step towards becoming a proficient AR System developer.