本文整理汇总了Python中boto.emr.connection.EmrConnection.close方法的典型用法代码示例。如果您正苦于以下问题：Python EmrConnection.close方法的具体用法？Python EmrConnection.close怎么用？Python EmrConnection.close使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类boto.emr.connection.EmrConnection的用法示例。
在下文中一共展示了EmrConnection.close方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: __init__
# 需要导入模块: from boto.emr.connection import EmrConnection [as 别名]
# 或者: from boto.emr.connection.EmrConnection import close [as 别名]
class Rankmaniac:
"""
(wrapper class)
This class presents a simple wrapper around the AWS SDK. It strives
to provide all the functionality required to run map-reduce
(Hadoop) on Amazon. This way the students do not need to worry about
learning the API for Amazon S3 and EMR, and instead can focus on
computing pagerank quickly!
"""
DefaultRegionName = 'us-west-2'
DefaultRegionEndpoint = 'elasticmapreduce.us-west-2.amazonaws.com'
def __init__(self, team_id, access_key, secret_key,
bucket='cs144students'):
"""
(constructor)
Creates a new instance of the Rankmaniac class for a specific
team using the provided credentials.
Arguments:
team_id <str> the team identifier, which may be
differ slightly from the actual team
name.
access_key <str> the AWS access key identifier.
secret_key <str> the AWS secret acess key.
Keyword arguments:
bucket <str> the S3 bucket name.
"""
region = RegionInfo(None, self.DefaultRegionName,
self.DefaultRegionEndpoint)
self._s3_bucket = bucket
self._s3_conn = S3Connection(access_key, secret_key)
self._emr_conn = EmrConnection(access_key, secret_key, region=region)
self.team_id = team_id
self.job_id = None
self._reset()
self._num_instances = 1
def _reset(self):
"""
Resets the internal state of the job and submission.
"""
self._iter_no = 0
self._infile = None
self._last_outdir = None
self._last_process_step_iter_no = -1
self._is_done = False
def __del__(self):
"""
(destructor)
Terminates the map-reduce job if any, and closes the connections
to Amazon S3 and EMR.
"""
if self.job_id is not None:
self.terminate()
self._s3_conn.close()
self._emr_conn.close()
def __enter__(self):
"""
Used for `with` syntax. Simply returns this instance since the
set-up has all been done in the constructor.
"""
return self
def __exit__(self, type, value, traceback):
"""
Refer to __del__().
"""
self.__del__()
return False # do not swallow any exceptions
def upload(self, indir='data'):
"""
Uploads the local data to Amazon S3 under the configured bucket
and key prefix (the team identifier). This way the code can be
accessed by Amazon EMR to compute pagerank.
Keyword arguments:
indir <str> the base directory from which to
upload contents.
Special notes:
#.........这里部分代码省略.........