def createWorker_(machineId,
viewFactory,
callbackSchedulerToUse,
threadCount,
memoryLimitMb,
cacheFunction,
pageSizeOverride,
disableEventHandler):
if callbackSchedulerToUse is None:
callbackSchedulerToUse = CallbackScheduler.singletonForTesting()
vdm = ForaNative.VectorDataManager(
callbackSchedulerToUse,
pageSizeOverride if pageSizeOverride is not None else
1 * 1024 * 1024 if memoryLimitMb < 1000 else
5 * 1024 * 1024 if memoryLimitMb < 5000 else
50 * 1024 * 1024
)
vdm.setMemoryLimit(
int(memoryLimitMb * 1024 * 1024),
min(int(memoryLimitMb * 1.25 * 1024 * 1024),
int((memoryLimitMb + 1024 * 2) * 1024 * 1024))
)
vdm.setPersistentCacheIndex(
CumulusNative.PersistentCacheIndex(
viewFactory.createView(),
callbackSchedulerToUse
)
)
cache = cacheFunction()
if disableEventHandler:
eventHandler = CumulusNative.CumulusWorkerIgnoreEventHandler()
else:
eventHandler = CumulusNative.CumulusWorkerHoldEventsInMemoryEventHandler()
return (
CumulusNative.CumulusWorker(
callbackSchedulerToUse,
CumulusNative.CumulusWorkerConfiguration(
machineId,
threadCount,
CumulusNative.CumulusCheckpointPolicy.None(),
ExecutionContext.createContextConfiguration(),
""
),
vdm,
cache,
eventHandler
),
vdm,
eventHandler
)
