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IMPALA-5333: Add support for Impala to work with ADLS

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This patch leverages the AdlFileSystem in Hadoop to allow
Impala to talk to the Azure Data Lake Store. This patch has
functional changes as well as adds test infrastructure for
testing Impala over ADLS.

We do not support ACLs on ADLS since the Hadoop ADLS
connector does not integrate ADLS ACLs with Hadoop users/groups.

For testing, we use the azure-data-lake-store-python client
from Microsoft. This client seems to have some consistency
issues. For example, a drop table through Impala will delete
the files in ADLS, however, listing that directory through
the python client immediately after the drop, will still show
the files. This behavior is unexpected since ADLS claims to be
strongly consistent. Some tests have been skipped due to this
limitation with the tag SkipIfADLS.slow_client. Tracked by
IMPALA-5335.

The azure-data-lake-store-python client also only works on CentOS 6.6
and over, so the python dependencies for Azure will not be downloaded
when the TARGET_FILESYSTEM is not "adls". While running ADLS tests,
the expectation will be that it runs on a machine that is at least
running CentOS 6.6.
Note: This is only a test limitation, not a functional one. Clusters
with older OSes like CentOS 6.4 will still work with ADLS.

Added another dependency to bootstrap_build.sh for the ADLS Python
client.

Testing: Ran core tests with and without TARGET_FILESYSTEM as
'adls' to make sure that all tests pass and that nothing breaks.

Change-Id: Ic56b9988b32a330443f24c44f9cb2c80842f7542
Reviewed-on: http://gerrit.cloudera.org:8080/6910
Tested-by: Impala Public Jenkins
Reviewed-by: Sailesh Mukil <sailesh@cloudera.com>
This commit is contained in:
Sailesh Mukil
2017-04-10 17:08:01 -07:00
parent 7763b8cc8d
commit 50bd015f2d
43 changed files with 359 additions and 49 deletions
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5
tests/data_errors/test_data_errors.py
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@@ -25,7 +25,7 @@ import subprocess
from tests.beeswax.impala_beeswax import ImpalaBeeswaxException
from tests.common.impala_test_suite import ImpalaTestSuite
from tests.common.skip import SkipIf, SkipIfS3, SkipIfLocal
from tests.common.skip import SkipIf, SkipIfS3, SkipIfADLS, SkipIfLocal
from tests.common.test_dimensions import create_exec_option_dimension
class TestDataErrors(ImpalaTestSuite):
@@ -105,6 +105,7 @@ class TestHdfsUnknownErrors(ImpalaTestSuite):
assert "Safe mode is OFF" in output
@SkipIfS3.qualified_path
@SkipIfADLS.qualified_path
class TestHdfsScanNodeErrors(TestDataErrors):
@classmethod
def add_test_dimensions(cls):
@@ -122,6 +123,7 @@ class TestHdfsScanNodeErrors(TestDataErrors):
self.run_test_case('DataErrorsTest/hdfs-scan-node-errors', vector)
@SkipIfS3.qualified_path
@SkipIfADLS.qualified_path
@SkipIfLocal.qualified_path
class TestHdfsSeqScanNodeErrors(TestHdfsScanNodeErrors):
@classmethod
@@ -136,6 +138,7 @@ class TestHdfsSeqScanNodeErrors(TestHdfsScanNodeErrors):
@SkipIfS3.qualified_path
@SkipIfADLS.qualified_path
class TestHdfsRcFileScanNodeErrors(TestHdfsScanNodeErrors):
@classmethod
def add_test_dimensions(cls):