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82bd087fb1
This takes steps to make Python 2 behave like Python 3 as
a way to flush out issues with running on Python 3. Specifically,
it handles two main differences:
1. Python 3 requires absolute imports within packages. This
can be emulated via "from __future__ import absolute_import"
2. Python 3 changed division to "true" division that doesn't
round to an integer. This can be emulated via
"from __future__ import division"
This changes all Python files to add imports for absolute_import
and division. For completeness, this also includes print_function in the
import.
I scrutinized each old-division location and converted some locations
to use the integer division '//' operator if it needed an integer
result (e.g. for indices, counts of records, etc). Some code was also using
relative imports and needed to be adjusted to handle absolute_import.
This fixes all Pylint warnings about no-absolute-import and old-division,
and these warnings are now banned.
Testing:
- Ran core tests
Change-Id: Idb0fcbd11f3e8791f5951c4944be44fb580e576b
Reviewed-on: http://gerrit.cloudera.org:8080/19588
Reviewed-by: Joe McDonnell <joemcdonnell@cloudera.com>
Tested-by: Joe McDonnell <joemcdonnell@cloudera.com>
52 lines
1.9 KiB
Python
52 lines
1.9 KiB
Python
#!/usr/bin/env impala-python
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# Licensed to the Apache Software Foundation (ASF) under one
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# or more contributor license agreements. See the NOTICE file
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# distributed with this work for additional information
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# regarding copyright ownership. The ASF licenses this file
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# to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance
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# with the License. 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,
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# software distributed under the License is distributed on an
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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# KIND, either express or implied. See the License for the
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# specific language governing permissions and limitations
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# under the License.
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# This file contains library functions to decode and access Impala query profiles.
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from __future__ import absolute_import, division, print_function
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import base64
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import datetime
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import zlib
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from thrift.protocol import TCompactProtocol
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from thrift.TSerialization import deserialize
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from RuntimeProfile.ttypes import TRuntimeProfileTree
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def decode_profile_line(line):
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space_separated = line.split(" ")
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if len(space_separated) == 3:
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ts = int(space_separated[0])
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print(datetime.datetime.fromtimestamp(ts / 1000.0).isoformat(), space_separated[1])
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base64_encoded = space_separated[2]
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elif len(space_separated) == 1:
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base64_encoded = space_separated[0]
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else:
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raise Exception("Unexpected line: " + line)
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possibly_compressed = base64.b64decode(base64_encoded)
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# Handle both compressed and uncompressed Thrift profiles
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try:
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thrift = zlib.decompress(possibly_compressed)
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except zlib.error:
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thrift = possibly_compressed
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tree = TRuntimeProfileTree()
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deserialize(tree, thrift, protocol_factory=TCompactProtocol.TCompactProtocolFactory())
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tree.validate()
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return tree
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