Specifying suppress with RAY_IGNORE_UNHANDLED_ERRORS=1

I was trying to experiment with throttling ray execution and ensuring that tasks do not overrun predefined duration. Here is my code:

import ray, time
ray.init()

@ray.remote
def busy(i):
time.sleep(i)
return i

#dictionary of execution times
executions = {}
ids = []

extime = 2

#start first 5 executions
current_time = time.time()
for x in range(0, 5):
id = busy.remote(extime)
ids.append(id)
executions[id] = current_time
extime = extime + 5

print(‘ids’, ids)
print(‘executions’, executions)

while(True):
# Run every sec
ready, not_ready = ray.wait(ids, timeout = 5.0)
# adjust duration
if extime >= 40:
extime = 2
# Nothing completed
if not ready:
continue

current_time = time.time()
# Process not_ready ones
for key in not_ready:
    execution_time = current_time - executions[key]
    #print('key ', key, ' execution time ', execution_time)
    if execution_time >= 20.0:
        # we timed out
        print('execution ', key, ' is too long, canceling ')
        ray.cancel(key, force=True, recursive=True)
        ids.remove(key)
        executions.pop(key, 0)
        # add new execution
        id = busy.remote(extime)
        ids.append(id)
        executions[id] = current_time
        extime = extime + 5    # Process ready ones
for key in ready:
    print('complete execution of ', key, ' value ', ray.get(key), ' duration ', current_time - executions[key])
    executions.pop(key)
    ids.remove(key)
    # add new execution
    id = busy.remote(extime)
    ids.append(id)
    executions[id] = current_time
    extime = extime + 5

It seems to work fine, but because I delete long running Ray tasks, it gives me these wornings:

execution ObjectRef(480a853c2c4c6f27ffffffffffffffffffffffff0100000001000000) is too long, canceling
execution ObjectRef(623b26bdd75b28e9ffffffffffffffffffffffff0100000001000000) is too long, canceling
complete execution of ObjectRef(c6953afc4a9f69e9ffffffffffffffffffffffff0100000001000000) value 12 duration 12.00232195854187
2021-04-26 17:10:37,529 ERROR worker.py:78 – Unhandled error (suppress with RAY_IGNORE_UNHANDLED_ERRORS=1): The worker died unexpectedly while executing this task. Check python-core-worker-.log files for more information.
2021-04-26 17:10:37,529 ERROR worker.py:78 – Unhandled error (suppress with RAY_IGNORE_UNHANDLED_ERRORS=1): The worker died unexpectedly while executing this task. Check python-core-worker-
.log files for more information.
complete execution of ObjectRef(402ddcfdf56ca87affffffffffffffffffffffff0100000001000000) value 17 duration 17.004695892333984
complete execution of ObjectRef(24eed4584329c19affffffffffffffffffffffff0100000001000000) value 2 duration 2.0068249702453613

Where exactly do I suppress with RAY_IGNORE_UNHANDLED_ERRORS=1 ?

You should be able to set this like:

RAY_IGNORE_UNHANDLED_ERRORS=1 python script