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From "Hive QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-860) Persistent distributed cache
Date Wed, 02 Jul 2014 07:54:24 GMT

    [ https://issues.apache.org/jira/browse/HIVE-860?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14049711#comment-14049711
] 

Hive QA commented on HIVE-860:
------------------------------



{color:red}Overall{color}: -1 at least one tests failed

Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12653524/HIVE-860.patch

{color:red}ERROR:{color} -1 due to 19 failed/errored test(s), 5630 tests executed
*Failed tests:*
{noformat}
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_archive_excludeHadoop20
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_avro_nullable_fields
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_bucketsortoptimize_insert_1
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_decimal_precision
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_groupby2_limit
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_groupby_sort_skew_1_23
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_inputddl7
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_load_dyn_part12
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_partition_wise_fileformat8
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_sample10
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_skewjoin
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_stats1
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_udaf_covar_samp
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_udf8
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_view_cast
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_windowing_streaming
org.apache.hadoop.hive.cli.TestMinimrCliDriver.testCliDriver_root_dir_external_table
org.apache.hadoop.hive.hwi.TestHWISessionManager.testHiveDriver
org.apache.hadoop.hive.metastore.txn.TestCompactionTxnHandler.testRevokeTimedOutWorkers
{noformat}

Test results: http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-Build/657/testReport
Console output: http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-Build/657/console
Test logs: http://ec2-174-129-184-35.compute-1.amazonaws.com/logs/PreCommit-HIVE-Build-657/

Messages:
{noformat}
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: 19 tests failed
{noformat}

This message is automatically generated.

ATTACHMENT ID: 12653524

> Persistent distributed cache
> ----------------------------
>
>                 Key: HIVE-860
>                 URL: https://issues.apache.org/jira/browse/HIVE-860
>             Project: Hive
>          Issue Type: Improvement
>    Affects Versions: 0.12.0
>            Reporter: Zheng Shao
>            Assignee: Brock Noland
>             Fix For: 0.14.0
>
>         Attachments: HIVE-860.patch, HIVE-860.patch, HIVE-860.patch, HIVE-860.patch,
HIVE-860.patch, HIVE-860.patch, HIVE-860.patch, HIVE-860.patch, HIVE-860.patch, HIVE-860.patch,
HIVE-860.patch
>
>
> DistributedCache is shared across multiple jobs, if the hdfs file name is the same.
> We need to make sure Hive put the same file into the same location every time and do
not overwrite if the file content is the same.
> We can achieve 2 different results:
> A1. Files added with the same name, timestamp, and md5 in the same session will have
a single copy in distributed cache.
> A2. Filed added with the same name, timestamp, and md5 will have a single copy in distributed
cache.
> A2 has a bigger benefit in sharing but may raise a question on when Hive should clean
it up in hdfs.



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