venkata91 commented on PR #24736:
URL: https://github.com/apache/flink/pull/24736#issuecomment-2367214026
To illustrate with an example test case, try changing the `executeJob` and
`createConfiguration` with below code and run `testScheduling`:
```
private void executeJob(Boolean useSourceParallelismInference) throws
Exception {
final Configuration configuration = createConfiguration();
final StreamExecutionEnvironment env =
StreamExecutionEnvironment.createLocalEnvironment(configuration);
env.setRuntimeMode(RuntimeExecutionMode.BATCH);
List<SlotSharingGroup> slotSharingGroups = new ArrayList<>();
for (int i = 0; i < 3; ++i) {
SlotSharingGroup group =
SlotSharingGroup.newBuilder("group" + i)
.setCpuCores(1.0)
.setTaskHeapMemory(MemorySize.parse("100m"))
.build();
slotSharingGroups.add(group);
}
DataStream<Long> source1;
DataStream<Long> source2;
if (useSourceParallelismInference) {
source1 =
env.fromSource(
new
TestingParallelismInferenceNumberSequenceSource(
0, NUMBERS_TO_PRODUCE - 1,
SOURCE_PARALLELISM_1),
WatermarkStrategy.noWatermarks(),
"source1")
.slotSharingGroup(slotSharingGroups.get(0));
source2 =
env.fromSource(
new
TestingParallelismInferenceNumberSequenceSource(
0, NUMBERS_TO_PRODUCE - 1,
SOURCE_PARALLELISM_2),
WatermarkStrategy.noWatermarks(),
"source2")
.slotSharingGroup(slotSharingGroups.get(1));
} else {
source1 =
env.fromSequence(0, NUMBERS_TO_PRODUCE - 1)
.setParallelism(-1)
.name("source1")
.slotSharingGroup(slotSharingGroups.get(0));
source2 =
env.fromSequence(0, NUMBERS_TO_PRODUCE - 1)
.setParallelism(-1)
.name("source2")
.slotSharingGroup(slotSharingGroups.get(1));
}
source1.union(source2)
.rescale()
.map(new NumberCounter())
.name("map")
.slotSharingGroup(slotSharingGroups.get(2));
env.execute();
}
private static Configuration createConfiguration() {
final Configuration configuration = new Configuration();
configuration.set(RestOptions.BIND_PORT, "0");
configuration.set(JobManagerOptions.SLOT_REQUEST_TIMEOUT,
Duration.ofMillis(5000L));
configuration.set(
BatchExecutionOptions.ADAPTIVE_AUTO_PARALLELISM_MAX_PARALLELISM,
DEFAULT_MAX_PARALLELISM);
configuration.set(
BatchExecutionOptions.ADAPTIVE_AUTO_PARALLELISM_DEFAULT_SOURCE_PARALLELISM,
2 * DEFAULT_MAX_PARALLELISM);
configuration.set(
BatchExecutionOptions.ADAPTIVE_AUTO_PARALLELISM_AVG_DATA_VOLUME_PER_TASK,
MemorySize.parse("150kb"));
configuration.set(TaskManagerOptions.MEMORY_SEGMENT_SIZE,
MemorySize.parse("4kb"));
configuration.set(TaskManagerOptions.NUM_TASK_SLOTS, 1);
return configuration;
}
```
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