Interesting challenge as these are not overrideable properites of the Task Definition.

However you can hijack the device to output somewhere else.

Here is an example dynamically adding a datetime suffix to the logfile for a built-in System Task.

So if you enable Logging to "c:\temp\T" (WIndows example) on this task and selected OutputFileSuffix property " [YY]YY-MM-DD" then your Task output is actually directed to new file "c:\temp\T20220711_153600".

/// Seems to need %SYS.Task.Definition in super list to be
/// visible in Task Schedule Wizard
Class Test.SuperRunLegacyTask Extends (%SYS.Task.RunLegacyTask, %SYS.Task.Definition)
{

/// Example flexible property to enable selecting a given Date and Time format 
/// from the Schedule Wizard, to use as Suffix appended to log file name (When in use)
Property OutputFileSuffix As %String(DISPLAYLIST = ",MM/DD/[YY]YY,DD Mmm [YY]YY,[YY]YY-MM-DD,DD/MM/[YY]YY", VALUELIST = ",1,2,3,4") [ InitialExpression = 3 ];

Method OnTask() As %Status
{
	set current=$IO
	set useDev=0
	
	// Checks has at least 2 path seperators
	// Checks not a null device
	if $L($TR(current,"\/"))<($L(current)-1),$L(current,":")<2 {
		set dev=current_$TR($ZDT($ZTS,..OutputFileSuffix),", :/()-","__")
		Open dev:"NWS":2
		if $T set useDev=1
	}
	if useDev {
		use dev do {
			set tSC=##super()
			close dev	
		} while 0
	} else {
		set tSC=##super()
	}
	quit tSC
}

}

$ sudo find / -name "CSP.log" 2>/dev/null

Also if selinux enabled and blocking:
$ sestatus
SELinux status: enabled

Validate. (Example correct path as location above)

$ ls -Z /opt/webgateway/logs/CSP.log

Correction. (Example correct path as location above)

$ sudo semanage fcontext -a -t httpd_log_t /opt/webgateway/logs/CSP.log
$ sudo restorecon -v /opt/webgateway/logs/CSP.log

Hi Ramesh,

Good questions.

Either statement is correct.

By default MAXLEN is 50 characters.

Also there is a TRUNCATE parameter which is "0" false by default.

This means if the string was more than 50 characters you will get a validation error if you try to save a large string.

Setting TRUNCATE to "1" will sliently remove content over the default 50 characters.

No there is not any wasted storage if you don't define a MAXLEN parameter.

In default IRIS storage all of the simple properties (Strings, Numbers) of a record are stored in a list.

This list cannot exceed approximately 32K in length.

So maybe one reason to set your MAXLEN on all properies, for big tables, is to have documented sizes, to easly get total maximum size of the underlying storage list. Know if approaching 32K before you add more properties.

Then new properies can be mapped to a different subscript (storage list) to avoid a storage limitation.

Hope this helps.

Suggest use "Return" keyword instead of "Quit"

For example:

Class Test.ReturnOfTheTry [ Abstract ]
{

  ClassMethod GetReturn(state = 0)
    {
    try {
      if state=1 return "In Try"
      set x=3/0
    } catch {
      if state=2 return "In Catch"
  }
  quit "At Methods End"
  }

}

// Usage example

Write ##class(Test.ReturnOfTheTry).GetReturn(1)
In Try
Write ##class(Test.ReturnOfTheTry).GetReturn(2)
In Catch
Write ##class(Test.ReturnOfTheTry).GetReturn()
At Methods End