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From "Hive QA (JIRA)" <>
Subject [jira] [Commented] (HIVE-17466) Metastore API to list unique partition-key-value combinations
Date Wed, 13 Sep 2017 14:50:00 GMT


Hive QA commented on HIVE-17466:

Here are the results of testing the latest attachment:

{color:red}ERROR:{color} -1 due to no test(s) being added or modified.

{color:red}ERROR:{color} -1 due to 9 failed/errored test(s), 11039 tests executed
*Failed tests:*
TestAccumuloCliDriver - did not produce a TEST-*.xml file (likely timed out) (batchId=230)
TestDummy - did not produce a TEST-*.xml file (likely timed out) (batchId=230)
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[create_view] (batchId=39)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[union_fast_stats] (batchId=156)
org.apache.hadoop.hive.cli.TestNegativeCliDriver.testCliDriver[drop_table_failure2] (batchId=89)
org.apache.hadoop.hive.cli.TestPerfCliDriver.testCliDriver[query23] (batchId=234)
org.apache.hadoop.hive.ql.TestAcidOnTez.testCtasTezUnion (batchId=215)
org.apache.hadoop.hive.ql.TestAcidOnTez.testNonStandardConversion01 (batchId=215)

Test results:
Console output:
Test logs:

Executing org.apache.hive.ptest.execution.TestCheckPhase
Executing org.apache.hive.ptest.execution.PrepPhase
Executing org.apache.hive.ptest.execution.ExecutionPhase
Executing org.apache.hive.ptest.execution.ReportingPhase
Tests exited with: TestsFailedException: 9 tests failed

This message is automatically generated.

ATTACHMENT ID: 12886726 - PreCommit-HIVE-Build

> Metastore API to list unique partition-key-value combinations
> -------------------------------------------------------------
>                 Key: HIVE-17466
>                 URL:
>             Project: Hive
>          Issue Type: New Feature
>          Components: Metastore
>    Affects Versions: 2.2.0, 3.0.0
>            Reporter: Mithun Radhakrishnan
>            Assignee: Thiruvel Thirumoolan
>         Attachments: HIVE-17466.1.patch, HIVE-17466.2-branch-2.patch, HIVE-17466.2.patch,
> Raising this on behalf of [~thiruvel], who wrote this initially as part of a tangential
"data-discovery" system.
> Programs like Apache Oozie, Apache Falcon (or Yahoo GDM), etc. launch workflows based
on the availability of table/partitions. Partitions are currently discovered by listing partitions
using (what boils down to) {{HiveMetaStoreClient.listPartitions()}}. This can be slow and
cumbersome, given that {{Partition}} objects are heavyweight and carry redundant information.
The alternative is to use partition-names, which will need client-side parsing to extract
part-key values.
> When checking which hourly partitions for a particular day have been published already,
it would be preferable to have an API that pushed down part-key extraction into the {{RawStore}}
layer, and returned key-values as the result. This would be similar to how {{SELECT DISTINCT
part_key FROM my_table;}} would run, but at the {{HiveMetaStoreClient}} level.
> Here's what we've been using at Yahoo.

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