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- #!/usr/bin/env python
- # Licensed to Cloudera, Inc. under one
- # or more contributor license agreements. See the NOTICE file
- # distributed with this work for additional information
- # regarding copyright ownership. Cloudera, Inc. licenses this file
- # to you under the Apache License, Version 2.0 (the
- # "License"); you may not use this file except in compliance
- # with the License. You may obtain a copy of the License at
- #
- # http://www.apache.org/licenses/LICENSE-2.0
- #
- # Unless required by applicable law or agreed to in writing, software
- # distributed under the License is distributed on an "AS IS" BASIS,
- # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- # See the License for the specific language governing permissions and
- # limitations under the License.
- import logging
- import os
- import sys
- from django.utils.translation import ugettext_lazy as _t, ugettext as _
- from desktop.lib.conf import Config, validate_thrift_transport, coerce_bool
- from desktop.lib.exceptions import StructuredThriftTransportException
- LOG = logging.getLogger(__name__)
- HBASE_CLUSTERS = Config(
- key="hbase_clusters",
- default="(Cluster|localhost:9090)",
- help=_t("Comma-separated list of HBase Thrift servers for clusters in the format of '(name|host:port)'. Use full hostname with security."
- "Prefix hostname with https:// if using SSL and http mode with impersonation."),
- type=str
- )
- TRUNCATE_LIMIT = Config(
- key="truncate_limit",
- default="500",
- help=_t("Hard limit of rows or columns per row fetched before truncating."),
- type=int
- )
- THRIFT_TRANSPORT = Config(
- key="thrift_transport",
- default="buffered",
- help=_t("'buffered' is the default of the HBase Thrift Server and supports security. " +
- "'framed' can be used to chunk up responses, " +
- "which is useful when used in conjunction with the nonblocking server in Thrift."),
- type=str
- )
- HBASE_CONF_DIR = Config(
- key='hbase_conf_dir',
- help=_t('HBase configuration directory, where hbase-site.xml is located.'),
- default=os.environ.get("HBASE_CONF_DIR", '/etc/hbase/conf')
- )
- # Hidden, just for making patching of older version of Hue easier. To remove in Hue 4.
- USE_DOAS = Config(
- key='use_doas',
- help=_t('Force Hue to use Http Thrift mode with doas impersonation, regarless of hbase-site.xml properties.'),
- default=False,
- type=coerce_bool
- )
- def config_validator(user):
- res = []
- from hbase.api import HbaseApi
- from hbase.settings import NICE_NAME
- try:
- if not 'test' in sys.argv: # Avoid tests hanging
- api = HbaseApi(user=user)
- cluster_name = api.getClusters()[0]['name'] # Currently pick first configured cluster
- # Check connectivity
- api.connectCluster(cluster_name)
- api.getTableList(cluster_name)
- except Exception, e:
- print e
- if 'Could not connect' in str(e):
- msg = "The application won't work without a running HBase Thrift Server v1."
- else:
- msg = 'Failed to authenticate to HBase Thrift Server, check authentication configurations.'
- LOG.exception(msg)
- res.append((NICE_NAME, _(msg)))
- res.extend(validate_thrift_transport(THRIFT_TRANSPORT))
- return res
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