def set_and_log_cache(
cache_instance: Cache,
cache_key: str,
cache_value: Dict[str, Any],
cache_timeout: Optional[int] = None,
datasource_uid: Optional[str] = None,
) -> None:
if isinstance(cache_instance.cache, NullCache):
return
timeout = (cache_timeout if cache_timeout is not None else
app.config["CACHE_DEFAULT_TIMEOUT"])
try:
dttm = datetime.utcnow().isoformat().split(".")[0]
value = {**cache_value, "dttm": dttm}
cache_instance.set(cache_key, value, timeout=timeout)
stats_logger.incr("set_cache_key")
if datasource_uid and config["STORE_CACHE_KEYS_IN_METADATA_DB"]:
ck = CacheKey(
cache_key=cache_key,
cache_timeout=cache_timeout,
datasource_uid=datasource_uid,
)
db.session.add(ck)
except Exception as ex: # pylint: disable=broad-except
# cache.set call can fail if the backend is down or if
# the key is too large or whatever other reasons
logger.warning("Could not cache key %s", cache_key)
logger.exception(ex)
def test_invalidate_existing_cache(invalidate):
db.session.add(CacheKey(cache_key="cache_key", datasource_uid="3__table"))
db.session.commit()
cache_manager.cache.set("cache_key", "value")
rv = invalidate({"datasource_uids": ["3__table"]})
assert rv.status_code == 201
assert cache_manager.cache.get("cache_key") == None
assert (not db.session.query(CacheKey).filter(
CacheKey.cache_key == "cache_key").first())
def test_invalidate_existing_caches(invalidate):
schema = get_example_default_schema() or ""
bn = SupersetTestCase.get_birth_names_dataset()
db.session.add(CacheKey(cache_key="cache_key1", datasource_uid="3__druid"))
db.session.add(CacheKey(cache_key="cache_key2", datasource_uid="3__druid"))
db.session.add(
CacheKey(cache_key="cache_key4", datasource_uid=f"{bn.id}__table"))
db.session.add(CacheKey(cache_key="cache_keyX", datasource_uid="X__table"))
db.session.commit()
cache_manager.cache.set("cache_key1", "value")
cache_manager.cache.set("cache_key2", "value")
cache_manager.cache.set("cache_key4", "value")
cache_manager.cache.set("cache_keyX", "value")
rv = invalidate(
{
"datasource_uids": ["3__druid", "4__druid"],
"datasources": [
{
"datasource_name": "birth_names",
"database_name": "examples",
"schema": schema,
"datasource_type": "table",
},
{ # table exists, no cache to invalidate
"datasource_name": "energy_usage",
"database_name": "examples",
"schema": schema,
"datasource_type": "table",
},
{ # table doesn't exist
"datasource_name": "does_not_exist",
"database_name": "examples",
"schema": schema,
"datasource_type": "table",
},
{ # database doesn't exist
"datasource_name": "birth_names",
"database_name": "does_not_exist",
"schema": schema,
"datasource_type": "table",
},
{ # database doesn't exist
"datasource_name": "birth_names",
"database_name": "examples",
"schema": "does_not_exist",
"datasource_type": "table",
},
],
}
)
assert rv.status_code == 201
assert cache_manager.cache.get("cache_key1") is None
assert cache_manager.cache.get("cache_key2") is None
assert cache_manager.cache.get("cache_key4") is None
assert cache_manager.cache.get("cache_keyX") == "value"
assert (not db.session.query(CacheKey).filter(
CacheKey.cache_key.in_({"cache_key1", "cache_key2", "cache_key4"
})).first())
assert (db.session.query(CacheKey).filter(
CacheKey.cache_key == "cache_keyX").first().datasource_uid ==
"X__table")