def check_stack_feature(stack_feature, stack_version):
"""
Given a stack_feature and a specific stack_version, it validates that the feature is supported by the stack_version.
:param stack_feature: Feature name to check if it is supported by the stack. For example: "rolling_upgrade"
:param stack_version: Version of the stack
:return: Will return True if successful, otherwise, False.
"""
stack_features_config = default(
"/configurations/cluster-env/stack_features", None)
data = _DEFAULT_STACK_FEATURES
if stack_features_config:
data = json.loads(stack_features_config)
for feature in data["stack_features"]:
if feature["name"] == stack_feature:
if "min_version" in feature:
min_version = feature["min_version"]
if Script.is_stack_less_than(min_version):
return False
if "max_version" in feature:
max_version = feature["max_version"]
if Script.is_stack_greater_or_equal(max_version):
return False
return True
return False
def pre_upgrade_restart(self, env, upgrade_type=None):
Logger.info("Executing Stack Upgrade pre-restart")
import params
env.set_params(params)
# this function should not execute if the version can't be determined or
# is not at least HDP 2.2.0.0
if Script.is_stack_less_than("2.2"):
return
Logger.info("Executing Falcon Server Stack Upgrade pre-restart")
conf_select.select(params.stack_name, "falcon", params.version)
stack_select.select("falcon-server", params.version)
falcon_server_upgrade.pre_start_restore()
