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https://reviews.apache.org/r/60303/
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Review request for hive, Carl Steinbach, Anthony Hsu, and Ratandeep Ratti.
Bugs: HIVE-16908
https://issues.apache.org/jira/browse/HIVE-16908
Repository: hive-git
Description
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HIVE-16908: Update table and partition replication tests to not use 2nd HCat
instance
HIVE-16844 fixed a connection leak issue which subsequently exposed failures in
TestHCatClient. The connection leak gets triggered if a metastore instance is
updated with a different JDO configuration. TestHCatClient uses 2 metastore
instances to test replication related methods. Unfortunately, it does so by
providing a different derby db name for the second instance. Since the 2
metastores run in the same JVM, the path fixed in HIVE-16844 gets triggered,
resulting in "sourceMetastore"'s connection being closed and thus resulting in
failures.
It appears to me that running 2 metastore instances within the same JVM is
error prone as there could be unintentional side-effects due to statics in the
code (as was exposed by fixing HIVE-16844). This patch provides a way to test
the replication related methods without involving a second instance. The
changes mainly validate the serialize/deserialize methods. One of the tests,
testPartitionRegistrationWithCustomSchema, uses addPartitions method to verify
propogation of changes and it appeared that addPartitions wasn't covered by
other tests in TestHCatClient and there wasn't a better way to verify the
intended path, so I used an approach where the original database and table are
dropped and recreated using the serialized-string and captured partition spec.
Diffs
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hcatalog/webhcat/java-client/src/test/java/org/apache/hive/hcatalog/api/TestHCatClient.java
86d3acbcb462d244fa2dc2f48923aab1e3ccee66
Diff: https://reviews.apache.org/r/60303/diff/1/
Testing
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mvn test -DTest=TestHCatClient now passes.
Thanks,
Sunitha Beeram
