IBM Streams 4.2.1

placement : hostIsolation

type:

Not applicable.

example:

config placement : hostIsolation;

description:

The operator instance belongs to a partition that has a host of its own. Other operator instances can be in that partition, but no other partition can run on that host.

If the application has user-defined parallelism, you can use the getChannel() and getMaxChannels() SPL built-in functions in this config. For example:

config placement: hostIsolation("A" + (rstring)getChannel());

The functions are evaluated when the job is submitted.

default:

By default, there are no isolation constraints.