APT_DEBUG_PARTITION
APT_DEBUG_PARTITION specifies the partitions on which to start debuggers.
One instance, or partition, of an operator is run on each node running the operator. If set to a single number, debuggers are started on that partition; if not set or set to -1, debuggers are started on all partitions.
See the description of APT_DEBUG_OPERATOR for more information on using this environment variable.
For example, setting APT_DEBUG_STEP to 0, APT_DEBUG_OPERATOR to 1, and APT_DEBUG_PARTITION to -1 starts debuggers for every partition of the second operator in the first step.
| APT_DEBUG_ OPERATOR | APT_DEBUG_ PARTITION | Effect |
|---|---|---|
| not set | any value | no debugging |
| -1 | not set or -1 | debug all partitions of all operators |
| -1 | >= 0 | debug a specific partition of all operators |
| >= 0 | -1 | debug all partitions of a specific operator |
| >= 0 | >= 0 | debug a specific partition of a specific operator |