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[autoscaler] Create provider exactly once (#10703)

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Co-authored-by: Alex Wu <itswu.alex@gmail.com>
This commit is contained in:
Richard Liaw 2020-09-10 01:03:52 -07:00 • committed by GitHub
parent 67bf396ae7
commit eb025ea8cb
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2 changed files with 13 additions and 5 deletions
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14
python/ray/autoscaler/autoscaler.py
View file

@ -64,6 +64,9 @@ class StandardAutoscaler:
process_runner=subprocess,
update_interval_s=AUTOSCALER_UPDATE_INTERVAL_S):
self.config_path = config_path
# Keep this before self.reset (self.provider needs to be created
# exactly once).
self.provider = None
self.reset(errors_fatal=True)
self.load_metrics = load_metrics
@ -250,6 +253,7 @@ class StandardAutoscaler:
self.should_update(node_id) for node_id in nodes):
if node_id is not None:
resources = self._node_resources(node_id)
logger.debug(f"{node_id}: Starting new thread runner.")
T.append(
threading.Thread(
target=self.spawn_updater,
@ -295,9 +299,9 @@ class StandardAutoscaler:
self.config = new_config
self.runtime_hash = new_runtime_hash
self.file_mounts_contents_hash = new_file_mounts_contents_hash
self.provider = get_node_provider(self.config["provider"],
self.config["cluster_name"])
if not self.provider:
self.provider = get_node_provider(self.config["provider"],
self.config["cluster_name"])
# Check whether we can enable the resource demand scheduler.
if "available_node_types" in self.config:
self.available_node_types = self.config["available_node_types"]
@ -462,6 +466,8 @@ class StandardAutoscaler:
def spawn_updater(self, node_id, init_commands, ray_start_commands,
node_resources, docker_config):
logger.info(f"Creating new (spawn_updater) updater thread for node"
f" {node_id}.")
updater = NodeUpdaterThread(
node_id=node_id,
provider_config=self.config["provider"],
@ -492,6 +498,8 @@ class StandardAutoscaler:
return False
if self.num_failed_updates.get(node_id, 0) > 0: # TODO(ekl) retry?
return False
logger.debug(f"{node_id} is not being updated and "
"passes config check (can_update=True).")
return True
def launch_new_node(self, count: int, node_type: Optional[str]) -> None:

4
python/ray/autoscaler/commands.py
View file

@ -455,7 +455,7 @@ def kill_node(config_file, yes, hard, override_cluster_name):
def monitor_cluster(cluster_config_file, num_lines, override_cluster_name):
"""Tails the autoscaler logs of a Ray cluster."""
cmd = "tail -n {} -f /tmp/ray/session_*/logs/monitor*".format(num_lines)
cmd = f"tail -n {num_lines} -f /tmp/ray/session_latest/logs/monitor*"
exec_cluster(
cluster_config_file,
cmd=cmd,
@ -717,7 +717,7 @@ def get_or_create_head_node(config,
logger, "get_or_create_head_node: "
"Head node up-to-date, IP address is: {}", head_node_ip)
monitor_str = "tail -n 100 -f /tmp/ray/session_*/logs/monitor*"
monitor_str = "tail -n 100 -f /tmp/ray/session_latest/logs/monitor*"
if override_cluster_name:
modifiers = " --cluster-name={}".format(
quote(override_cluster_name))