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https://issues.apache.org/jira/browse/HIVE-2188?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13043362#comment-13043362
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[email protected] commented on HIVE-2188:
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trunk/metastore/if/hive_metastore.thrift
<https://reviews.apache.org/r/831/#comment1571>
How about calling it get_multi_table instead? multi_get_table sounds little
confusing to me.
trunk/metastore/src/java/org/apache/hadoop/hive/metastore/HiveMetaStore.java
<https://reviews.apache.org/r/831/#comment1572>
You can write this more concisely using commons-lang utility method as:
StringUtils.join(tbls,',');
trunk/metastore/src/java/org/apache/hadoop/hive/metastore/HiveMetaStore.java
<https://reviews.apache.org/r/831/#comment1576>
You can get rid of tables.get(i) == null check that will never be true.
trunk/metastore/src/java/org/apache/hadoop/hive/metastore/HiveMetaStore.java
<https://reviews.apache.org/r/831/#comment1573>
Instead of throwing RuntimeException, create MetaException and throw that.
trunk/metastore/src/java/org/apache/hadoop/hive/metastore/RawStore.java
<https://reviews.apache.org/r/831/#comment1574>
Please add javadocs for new methods introduced in interface. Also see my
first comment for name.
trunk/service/src/test/org/apache/hadoop/hive/service/TestHiveServer.java
<https://reviews.apache.org/r/831/#comment1575>
This test really belongs in the TestMetastore or some such in metastore dir
not in HiveServer.
- Ashutosh
On 2011-06-02 23:01:00, Sohan Jain wrote:
bq.
bq. -----------------------------------------------------------
bq. This is an automatically generated e-mail. To reply, visit:
bq. https://reviews.apache.org/r/831/
bq. -----------------------------------------------------------
bq.
bq. (Updated 2011-06-02 23:01:00)
bq.
bq.
bq. Review request for hive, Paul Yang and Ashutosh Chauhan.
bq.
bq.
bq. Summary
bq. -------
bq.
bq. Created a function "multi_get_table" that retrieves multiple tables on one
trip to the hive metastore, saving round trip time.
bq.
bq.
bq. This addresses bug HIVE-2188.
bq. https://issues.apache.org/jira/browse/HIVE-2188
bq.
bq.
bq. Diffs
bq. -----
bq.
bq. trunk/metastore/if/hive_metastore.thrift 1130342
bq.
trunk/metastore/src/java/org/apache/hadoop/hive/metastore/HiveMetaStore.java
1130342
bq.
trunk/metastore/src/java/org/apache/hadoop/hive/metastore/ObjectStore.java
1130342
bq. trunk/metastore/src/java/org/apache/hadoop/hive/metastore/RawStore.java
1130342
bq.
trunk/service/src/test/org/apache/hadoop/hive/service/TestHiveServer.java
1130342
bq.
bq. Diff: https://reviews.apache.org/r/831/diff
bq.
bq.
bq. Testing
bq. -------
bq.
bq. Added a test case to testMetasore() in TestHiveServer. Also tested for
speed improvements in a client session.
bq.
bq.
bq. Thanks,
bq.
bq. Sohan
bq.
bq.
> Add multi_get_table function in Hive Metastore
> ----------------------------------------------
>
> Key: HIVE-2188
> URL: https://issues.apache.org/jira/browse/HIVE-2188
> Project: Hive
> Issue Type: New Feature
> Components: Metastore
> Reporter: Sohan Jain
> Assignee: Sohan Jain
> Priority: Minor
> Attachments: HIVE-2188.1.patch
>
>
> This function would get multiple tables from the hive metastore as opposed to
> just one at a time, saving round trip time to the metastore.
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