[Nix-dev] Limiting number of Hydra jobs

[Peter Simons]

Hi Mateusz,

 > What setting should I set so that it will only ever run specified
 > number of total jobs?

you can specify a maximum number of jobs per platform in the
"systemtypes" table of the hydra SQL database:

 | # psql hydra
 | psql (9.2.9)
 | Type "help" for help.
 |
 | hydra=# select * from systemtypes;
 |     system    | maxconcurrent
 | --------------+---------------
 |  i686-linux   |             1
 |  x86_64-linux |            10

The default value for unspecified platforms is 2.

Best regards,
Peter