Informix PMDA?

[benjarrell]

I remember there being an Informix PMDA included in PCP back when it was an SGI product, has it been removed or was it not open sourced with the rest of PCP?

[kmcdonell]

The Informix PMDA (for Informix 7) was only ever released for Irix (never ported to Linux) and according to my sparse notes was last updated in about 1994.
At that time, the PMDA used C code to execute direct SQL to interrogate the performance views, and was exposed to variations in the schema for those views between releases ... these days there may be better APIs.
The thing that really killed it was no one in the PCP team had access to a licenced Informix installation for testing.
If you wanted to develop a PMDA, contact me directly at kenj@internode.on.net and I'll give you such additional information as I'm able.
As a quaint historical note, at that time, PMDAs were also available for Oracle 7 and Sybase 10.

[natoscott]

| As a quaint historical note, at that time, PMDAs were also available for Oracle 7 and Sybase 10.

The Oracle code lives on below src/pmdas/oracle in the PCP git tree, in perl form - its the only proprietary database code that was released and needs updating. However, I'm sure the v$ views the current code extracts metrics from all still exist. We see quite a few requests for pmdaoracle too, and the database bits required for development are available (not open source, but no paid license required for dev). Informix might be in the same boat re making their database bits available for development work.

[kmcdonell]

Thanks Nathan, I should have been more careful in my language ... a more correct statement would have been "As a quaint historical note, at that time, PMDAs using similar SQL from C implementations were also available for Oracle 7 and Sybase 10.