Callbacks¶

The Callbacks Object is a container of the Callback Objects for the cluster.

Description¶

arcapix.fs.gpfs.callbacks.setShowAllCallbacks(showall=True)¶

Pragma function to cause Callbacks to list all callbacks on the Filesystem, including system callbacks.

Parameters:	showall – Specify True to show all callbacks. Specify False to only show user callbacks.

Note

System callbacks can’t be created, deleted, or changed.

class arcapix.fs.gpfs.callbacks.Callbacks¶

Collection of callback objects

new(command, events, **kwargs)¶

Create a new callback

Parameters:	command – Path to an executable, or some Python callable, that the callback should run. events – An event or list of events that should trigger the callback callbackId – An identifier for the callback parms – List of parameters to be passed to the command. These can include GPFS variables. overwrite – Pass overwrite=True to replace any existing callback with the same id
Returns:	The newly created callback object
Return type:	Callback

destroy(*callbackId)¶: Destroy one or more user callbacks

clear()¶: Destroy all user callbacks

installedOnNode(nodeId)¶

Returns a dict of the the user callbacks installed on the specified node (including those installed on all nodes)

Return type:	dict of Callback

Examples¶

Add a new Callback¶

>>> from arcapix.fs.gpfs import Cluster
>>>
>>> # Load our cluster
... mycluster = Cluster()
>>>
>>> # Add callback
... mycluster.callbacks.new("/tmp/myscript.sh", "startup")
>>>