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fix: Pass cache refresh error handling function to CachingRegistry #189

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fix: Pass cache refresh error handling function to CachingRegistry #189

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6a1445a
fix: Pass cache refresh error handling function to CachingRegistry
zabarn Mar 5, 2025
38fb85e
fix: run linter
zabarn Mar 5, 2025
66faeae
throw error in refresh loop 10% of time for testing
zabarn Mar 5, 2025
6a11cfc
fix: random
zabarn Mar 5, 2025
66314f7
remove random failures
zabarn Mar 5, 2025
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15 changes: 12 additions & 3 deletions sdk/python/feast/infra/registry/caching_registry.py
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Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,7 @@
from abc import abstractmethod
from datetime import timedelta
from threading import Lock
from typing import List, Optional
from typing import Callable, List, Optional

from feast.base_feature_view import BaseFeatureView
from feast.data_source import DataSource
Expand All @@ -29,8 +29,15 @@


class CachingRegistry(BaseRegistry):
def __init__(self, project: str, cache_ttl_seconds: int, cache_mode: str):
def __init__(
self,
project: str,
cache_ttl_seconds: int,
cache_mode: str,
on_cache_refresh_failure: Optional[Callable[[Exception], None]] = None,
):
self.cache_mode = cache_mode
self._on_cache_refresh_failure = on_cache_refresh_failure
self.cached_registry_proto = RegistryProto()
self._refresh_lock = Lock()
self.cached_registry_proto_ttl = timedelta(
Expand Down Expand Up @@ -471,7 +478,8 @@ def refresh_loop():
if not self._stop_event.is_set():
self.refresh()
except Exception as e:
logger.exception("Exception in refresh_loop: %s", e)
if self._on_cache_refresh_failure:
self._on_cache_refresh_failure(e)

try:
self.registry_refresh_thread = threading.Thread(
Expand All @@ -483,6 +491,7 @@ def refresh_loop():
)
except Exception as e:
logger.exception("Failed to start registry refresh thread: %s", e)
raise e

def _exit_handler(self):
logger.info("Exiting, setting stop event for registry cache refresh thread")
Expand Down
2 changes: 2 additions & 0 deletions sdk/python/feast/infra/registry/sql.py
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Original file line number Diff line number Diff line change
Expand Up @@ -264,6 +264,7 @@ def __init__(
registry_config,
project: str,
repo_path: Optional[Path],
on_cache_refresh_failure: Optional[Callable[[Exception], None]] = None,
):
assert registry_config is not None and isinstance(
registry_config, SqlRegistryConfig
Expand Down Expand Up @@ -296,6 +297,7 @@ def __init__(
project=project,
cache_ttl_seconds=registry_config.cache_ttl_seconds,
cache_mode=registry_config.cache_mode,
on_cache_refresh_failure=on_cache_refresh_failure,
)

def _sync_feast_metadata_to_projects_table(self):
Expand Down
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