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From "Hive QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-10228) Changes to Hive Export/Import/DropTable/DropPartition to support replication semantics
Date Fri, 17 Apr 2015 22:12:58 GMT

    [ https://issues.apache.org/jira/browse/HIVE-10228?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14500790#comment-14500790
] 

Hive QA commented on HIVE-10228:
--------------------------------



{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/12726232/HIVE-10228.5.patch

{color:red}ERROR:{color} -1 due to 15 failed/errored test(s), 8727 tests executed
*Failed tests:*
{noformat}
TestMinimrCliDriver-bucketmapjoin6.q-constprog_partitioner.q-infer_bucket_sort_dyn_part.q-and-1-more
- did not produce a TEST-*.xml file
TestMinimrCliDriver-external_table_with_space_in_location_path.q-infer_bucket_sort_merge.q-auto_sortmerge_join_16.q-and-1-more
- did not produce a TEST-*.xml file
TestMinimrCliDriver-groupby2.q-import_exported_table.q-bucketizedhiveinputformat.q-and-1-more
- did not produce a TEST-*.xml file
TestMinimrCliDriver-index_bitmap3.q-stats_counter_partitioned.q-temp_table_external.q-and-1-more
- did not produce a TEST-*.xml file
TestMinimrCliDriver-infer_bucket_sort_map_operators.q-join1.q-bucketmapjoin7.q-and-1-more
- did not produce a TEST-*.xml file
TestMinimrCliDriver-infer_bucket_sort_num_buckets.q-disable_merge_for_bucketing.q-uber_reduce.q-and-1-more
- did not produce a TEST-*.xml file
TestMinimrCliDriver-infer_bucket_sort_reducers_power_two.q-scriptfile1.q-scriptfile1_win.q-and-1-more
- did not produce a TEST-*.xml file
TestMinimrCliDriver-leftsemijoin_mr.q-load_hdfs_file_with_space_in_the_name.q-root_dir_external_table.q-and-1-more
- did not produce a TEST-*.xml file
TestMinimrCliDriver-list_bucket_dml_10.q-bucket_num_reducers.q-bucket6.q-and-1-more - did
not produce a TEST-*.xml file
TestMinimrCliDriver-load_fs2.q-file_with_header_footer.q-ql_rewrite_gbtoidx_cbo_1.q-and-1-more
- did not produce a TEST-*.xml file
TestMinimrCliDriver-parallel_orderby.q-reduce_deduplicate.q-ql_rewrite_gbtoidx_cbo_2.q-and-1-more
- did not produce a TEST-*.xml file
TestMinimrCliDriver-ql_rewrite_gbtoidx.q-smb_mapjoin_8.q - did not produce a TEST-*.xml file
TestMinimrCliDriver-schemeAuthority2.q-bucket4.q-input16_cc.q-and-1-more - did not produce
a TEST-*.xml file
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_decimal_precision2
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_union_view
{noformat}

Test results: http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-TRUNK-Build/3480/testReport
Console output: http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-TRUNK-Build/3480/console
Test logs: http://ec2-174-129-184-35.compute-1.amazonaws.com/logs/PreCommit-HIVE-TRUNK-Build-3480/

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: 15 tests failed
{noformat}

This message is automatically generated.

ATTACHMENT ID: 12726232 - PreCommit-HIVE-TRUNK-Build

> Changes to Hive Export/Import/DropTable/DropPartition to support replication semantics
> --------------------------------------------------------------------------------------
>
>                 Key: HIVE-10228
>                 URL: https://issues.apache.org/jira/browse/HIVE-10228
>             Project: Hive
>          Issue Type: Sub-task
>          Components: Import/Export
>    Affects Versions: 1.2.0
>            Reporter: Sushanth Sowmyan
>            Assignee: Sushanth Sowmyan
>         Attachments: HIVE-10228.2.patch, HIVE-10228.3.patch, HIVE-10228.4.patch, HIVE-10228.5.patch,
HIVE-10228.patch
>
>
> We need to update a couple of hive commands to support replication semantics. To wit,
we need the following:
> EXPORT ... [FOR [METADATA] REPLICATION(“comment”)]
> Export will now support an extra optional clause to tell it that this export is being
prepared for the purpose of replication. There is also an additional optional clause here,
that allows for the export to be a metadata-only export, to handle cases of capturing the
diff for alter statements, for example.
> Also, if done for replication, the non-presence of a table, or a table being a view/offline
table/non-native table is not considered an error, and instead, will result in a successful
no-op.
> IMPORT ... (as normal) – but handles new semantics 
> No syntax changes for import, but import will have to change to be able to handle all
the permutations of export dumps possible. Also, import will have to ensure that it should
update the object only if the update being imported is not older than the state of the object.
Also, import currently does not work with dbname.tablename kind of specification, this should
be fixed to work.
> DROP TABLE ... FOR REPLICATION('eventid')
> Drop Table now has an additional clause, to specify that this drop table is being done
for replication purposes, and that the dop should not actually drop the table if the table
is newer than that event id specified.
> ALTER TABLE ... DROP PARTITION (...) FOR REPLICATION('eventid')
> Similarly, Drop Partition also has an equivalent change to Drop Table.
> =
> In addition, we introduce a new property "repl.last.id", which when tagged on to table
properties or partition properties on a replication-destination, holds the effective "state
identifier" of the object.



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