196 lines
6.7 KiB
Python
196 lines
6.7 KiB
Python
# Copyright (c) 2013 Mirantis Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import sahara.exceptions as e
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from sahara.i18n import _
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class NodeGroupCannotBeScaled(e.SaharaException):
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def __init__(self, ng_name, reason):
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self.message = _("Chosen node group %(ng_name)s cannot be scaled : "
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"%(reason)s") % {"ng_name": ng_name, "reason": reason}
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self.code = "NODE_GROUP_CANNOT_BE_SCALED"
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super(NodeGroupCannotBeScaled, self).__init__()
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class DecommissionError(e.SaharaException):
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code = "DECOMMISSION_ERROR"
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message = _("Failed to decommission cluster")
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def __init__(self, message=None):
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if message:
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self.message = message
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super(DecommissionError, self).__init__()
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class ClusterCannotBeScaled(e.SaharaException):
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def __init__(self, cluster_name, reason):
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self.message = _("Cluster %(cluster_name)s cannot be scaled : "
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"%(reason)s") % {"cluster_name": cluster_name,
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"reason": reason}
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self.code = "CLUSTER_CANNOT_BE_SCALED"
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super(ClusterCannotBeScaled, self).__init__()
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class RequiredServiceMissingException(e.SaharaException):
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"""Exception indicating that a required service has not been deployed."""
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def __init__(self, service_name, required_by=None):
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self.message = (_('Cluster is missing a service: %s')
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% service_name)
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if required_by:
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self.message = (_('%(message)s, required by service: '
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'%(required_by)s')
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% {'message': self.message,
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'required_by': required_by})
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self.code = 'MISSING_SERVICE'
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super(RequiredServiceMissingException, self).__init__()
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class InvalidComponentCountException(e.SaharaException):
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"""Exception indicating invalid number of components in a cluster.
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A message indicating a number of components cluster should contain and
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an invalid number of components are being deployed in a cluster.
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"""
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def __init__(self, component, expected_count, count, description=None):
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message = _("Hadoop cluster should contain %(expected_count)s "
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"%(component)s component(s)."
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" Actual %(component)s count is %(count)s")
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if description:
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message = ("%(message)s. %(description)s"
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% {'message': message, 'description': description})
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self.message = message % {"expected_count": expected_count,
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"component": component, "count": count}
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self.code = "INVALID_COMPONENT_COUNT"
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super(InvalidComponentCountException, self).__init__()
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class InvalidClusterTopology(e.SaharaException):
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"""Exception indicating another problems in a cluster topology,
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which is different from InvalidComponentCountException and
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RequiredServiceMissingException.
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"""
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code = "INVALID_TOPOLOGY"
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message = _("Cluster has invalid topology: {description}")
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def __init__(self, description):
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self.message = self.message.format(description=description)
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super(InvalidClusterTopology, self).__init__()
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class HadoopProvisionError(e.SaharaException):
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"""Exception indicating that cluster provisioning failed.
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A message indicating the reason for failure must be provided.
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"""
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base_message = _("Failed to Provision Hadoop Cluster: %s")
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def __init__(self, message):
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self.code = "HADOOP_PROVISION_FAILED"
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self.message = self.base_message % message
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super(HadoopProvisionError, self).__init__()
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class NameNodeHAConfigurationError(e.SaharaException):
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"""Exception indicating that hdp or cdh HDFS HA failed.
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A message indicating the reason for failure must be provided.
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"""
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base_message = _("NameNode High Availability: %s")
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def __init__(self, message):
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self.code = "NAMENODE_HIGHAVAILABILITY_CONFIGURATION_FAILED"
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self.message = self.base_message % message
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super(NameNodeHAConfigurationError, self).__init__()
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class ResourceManagerHAConfigurationError(e.SaharaException):
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"""Exception indicating that cdh YARN HA failed.
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A message indicating the reason for failure must be provided.
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"""
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base_message = _("ResourceManager High Availability: %s")
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def __init__(self, message):
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self.code = "RESOURCEMANAGER_HIGHAVAILABILITY_CONFIGURATION_FAILED"
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self.message = self.base_message % message
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super(ResourceManagerHAConfigurationError, self).__init__()
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class ImageValidationSpecificationError(e.SaharaException):
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"""Exception indicating that an image validation spec is in error."""
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base_message = _("Image validation spec is in error: %s")
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def __init__(self, message, *args):
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self.code = "IMAGE_SPECIFICATION_ERROR"
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self.message = self.base_message % message
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super(ImageValidationSpecificationError, self).__init__()
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class ImageValidationError(e.SaharaException):
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"""Exception indicating that an image has failed validation."""
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base_message = _("Image has failed validation: %s")
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def __init__(self, message):
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self.code = "IMAGE_VALIDATION_FAILED"
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self.message = self.base_message % message
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super(ImageValidationError, self).__init__()
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class AllValidationsFailedError(ImageValidationError):
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"""Exception indicating that all validations in an any block failed."""
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sub_message = _("All validations have failed: %s")
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def __init__(self, exceptions):
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data = ";".join(ex.message for ex in exceptions)
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message = self.sub_message % data
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super(AllValidationsFailedError, self).__init__(message)
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class InvalidVolumeSizeException(e.SaharaException):
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"""Exception indicating invalid configuration of components in a cluster.
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"""
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def __init__(self, volume_size, reserved):
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message = _("Volume size: %(volume_size)s GB should be greater than "
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"value of \"dfs_datanode_du_reserved\": %(reserved)s GB")
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self.message = message % {"volume_size": volume_size,
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"reserved": reserved}
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self.code = "INVALID_CONFIGURATION"
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super(InvalidVolumeSizeException, self).__init__()
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