759441 - retire EVENTLOOP_UI_LAG, UPDATE_STATUS histograms

Status: RESOLVED FIXED

(Mozilla Metrics :: Frontend Reports, defect)

Description

[(dormant account)]

We specified the histogram wrong. This is a good use-case to decide how we are going to retire histograms so they don't clog up the selection list in frontend.

Comment 1

[Brian R. Bondy [:bbondy]]

Please also retire UPDATE_STATUS, it was replaced with a different name.

Comment 2

[Daniel Einspanjer [:dre] [:deinspanjer]]

Will the macro be removed or just the references to it?

If the macro stays, we could add a tag to the description that the validation script could parse and use.

If the macro is removed, then could we leave it in as a comment and have the script parse the commented one?  I know that might sound a little junky, but I'm trying to think of a good way to create an audit trail for the validation script or something to not only see the old definition but also something about why/when it went away.

Comment 3

[Brian R. Bondy [:bbondy]]

Both macros were removed but I can re-add them with an OBSOLETE description or something along those lines if that works for you and Taras.

Comment 4

[(dormant account)]

(In reply to Daniel Einspanjer :dre [:deinspanjer] from comment #2)
> Will the macro be removed or just the references to it?
> 
> If the macro stays, we could add a tag to the description that the
> validation script could parse and use.
> 
> If the macro is removed, then could we leave it in as a comment and have the
> script parse the commented one?  I know that might sound a little junky, but
> I'm trying to think of a good way to create an audit trail for the
> validation script or something to not only see the old definition but also
> something about why/when it went away.

I think we should just have another list of obsolete histogram names. The list only needs 2 fields(name, reason for removal).

Comment 5

[Daniel Einspanjer [:dre] [:deinspanjer]]

I think we need all the meta-data to cover the case where a histogram was modified, is that not important?

If it is important, then we could just comment them out and modify the description.

Comment 6

[(dormant account)]

(In reply to Daniel Einspanjer :dre [:deinspanjer] from comment #5)
> I think we need all the meta-data to cover the case where a histogram was
> modified, is that not important?
> 
> If it is important, then we could just comment them out and modify the
> description.

I feel that old histograms should be deleted and we should come up with a new name for anything that changes parameters.

Comment 7

[Daniel Einspanjer [:dre] [:deinspanjer]]

I fear that would just lead to moving the meta into the name, i.e.
LATE_GLUE_FUBAR
is changed to
LATE_GLUE_FUBAR_MORE_BUCKETS

But I know you understand the developers that will be putting these things in better than I so if you aren't worried about that then I'll defer.

Comment 8

[Annie Elliott]

Marking: in group of > 33 asks for Telemetry that need PM priority before triage/scheduling.

Comment 9

[Annie Elliott]

Triaged.

Comment 10

[Sheeri Cabral [:sheeri]]

All pentaho graphs have been retired at this point.