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[UX] Add infeasibility reasons to the exception message #3986

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[UX] Add infeasibility reasons to the exception message #3986

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533e548
Append infeasibility reasons to the end of final exception message.
Conless Sep 21, 2024
6932181
Fix format issues.
Conless Sep 25, 2024
575ba56
Beautify the output table of infeasibility reasons.
Conless Oct 28, 2024
4e129ce
Simplify the unavalible log.
Conless Nov 29, 2024
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26 changes: 24 additions & 2 deletions sky/backends/cloud_vm_ray_backend.py
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Original file line number Diff line number Diff line change
Expand Up @@ -10,6 +10,7 @@
import pathlib
import re
import shlex
import shutil
import signal
import subprocess
import sys
Expand Down Expand Up @@ -151,6 +152,10 @@
# might be added during ssh.
_MAX_INLINE_SCRIPT_LENGTH = 120 * 1024

_RESOURCES_UNAVAILABLE_LOG = (
'The reasons for the infeasibility of each resource are summarized below. '
'For detailed explanations, please refer to the log above.')


def _is_command_length_over_limit(command: str) -> bool:
"""Check if the length of the command exceeds the limit.
Expand Down Expand Up @@ -1926,6 +1931,7 @@ def provision_with_retries(
self._optimize_target is None)

failover_history: List[Exception] = list()
resource_exceptions: Dict[resources_lib.Resources, Exception] = dict()

style = colorama.Style
fore = colorama.Fore
Expand Down Expand Up @@ -2016,6 +2022,7 @@ def provision_with_retries(
# Add failed resources to the blocklist, only when it
# is in fallback mode.
_add_to_blocked_resources(self._blocked_resources, to_provision)
resource_exceptions[to_provision] = failover_history[-1]
else:
# If we reach here, it means that the existing cluster must have
# a previous status of INIT, because other statuses (UP,
Expand Down Expand Up @@ -2052,7 +2059,22 @@ def provision_with_retries(
# possible resources or the requested resources is too
# restrictive. If we reach here, our failover logic finally
# ends here.
raise e.with_failover_history(failover_history)
table = log_utils.create_table(['Resource', 'Reason'])
for (resource, exception) in resource_exceptions.items():
launched_resource_str = str(resource)
# accelerator_args is way too long.
# Convert from:
# GCP(n1-highmem-8, {'tpu-v2-8': 1}, accelerator_args={'runtime_version': '2.12.0'} # pylint: disable=line-too-long
# to:
# GCP(n1-highmem-8, {'tpu-v2-8': 1}...)
pattern = ', accelerator_args={.*}'
launched_resource_str = re.sub(pattern, '...',
launched_resource_str)
table.add_row([launched_resource_str, exception])
table.max_table_width = shutil.get_terminal_size().columns
raise exceptions.ResourcesUnavailableError(
_RESOURCES_UNAVAILABLE_LOG + '\n' + table.get_string(),
failover_history=failover_history)
to_provision = task.best_resources
assert task in self._dag.tasks, 'Internal logic error.'
assert to_provision is not None, task
Expand Down Expand Up @@ -2805,7 +2827,7 @@ def _provision(
'`--retry-until-up` flag.')
with ux_utils.print_exception_no_traceback():
raise exceptions.ResourcesUnavailableError(
error_message,
error_message + '\n' + str(e),
failover_history=e.failover_history) from None
if dryrun:
record = global_user_state.get_cluster_from_name(cluster_name)
Expand Down
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