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The servers_queue Script Stampa Articolo
Overview:
This script allows you to manage the task queue system. The task queue system allows cPanel & WHM to execute tasks as a background process to improve server response time. You can use WHM’s Task Queue Monitor interface (WHM >> Home >> Server Status >> Task Queue Monitor) to view tasks in real time.
Warning:
- This script is for advanced users only. Modifying a task queue process may render your server nonfunctional.
- You should always use cPanel, L.L.C.’s documented API functions for the appropriate task.
- The name of modules monitored by the task queue system are subject to change.
Note:
- The
queueprocddaemon in the/usr/local/cpanel/libexecdirectory periodically processes the task queue. The cPanel & WHM startup process starts this daemon. To restart it, use the/usr/local/cpanel/scripts/restartsrv_queueprocdscript. - The
chksrvddaemon monitors thequeueprocddaemon.
Run the script
To run this script on the command line, use the following format:
/usr/local/cpanel/bin/servers_queue [options]Options
Use the following options with this script:
| Options | Description | Example |
|---|---|---|
queue |
Use this option to add a subprocess to the task queue. When you queue a task, the system returns a unique task ID. For example:TQ:TaskQueue-Scheduler:5912In this example, 5912 is the assigned task ID. |
/usr/local/cpanel/bin/servers_queue queue apache_restart |
unqueue |
Use this option to dequeue a task from the task queue. Note:
When you use this option, you must provide the task’s unique task ID with it. The system outputs this unique ID when you queue a task. You can also locate the task ID number in the
/var/cpanel/taskqueue/servers_queue.json file. |
/usr/local/cpanel/bin/servers_queue unqueue TQ:TaskQueue-Scheduler:5912 |
schedule |
Use this option to specify a wait time, in seconds, and add a subprocess to the task queue. The task queue will not process the command until after the wait time passes. | /usr/local/cpanel/bin/servers_queue schedule 600 apache_restart |
unschedule |
Use this option to remove a task from the task queue. Note:
When you use this option, you must provide the task’s unique task ID with it. The system outputs this unique ID when you queue a task. You can also locate the task ID number in the
/var/cpanel/taskqueue/servers_queue.json file. |
/usr/local/cpanel/bin/servers_queue unschedule TQ:TaskQueue-Scheduler:5912 |
run |
Use this option to perform a synchronous flush of the task queue. This runs all the task queue’s queued jobs immediately. This argument does not return output. | /usr/local/cpanel/bin/servers_queue run |
help |
Use this option to display usage information for the script. | /usr/local/cpanel/bin/servers_queue help |
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