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From Balu Vellanki <bvella...@hortonworks.com>
Subject Re: Review Request 42574: Support feed listing for CatalogStorage
Date Tue, 26 Jan 2016 23:01:57 GMT


> On Jan. 26, 2016, 6:55 p.m., Sowmya Ramesh wrote:
> > common/src/main/java/org/apache/falcon/entity/CatalogStorage.java, line 453
> > <https://reviews.apache.org/r/42574/diff/1-2/?file=1204002#file1204002line453>
> >
> >     result can be null isn't. get(0) will throw NPE if result is null. Check if
result is null before trying to access it. Do the same for FileSystemStorage.
> 
> Balu Vellanki wrote:
>     result cannot be null, it is init to new ArrayList<FeedInstanceStatus>();
> 
> Sowmya Ramesh wrote:
>     list can be empty isn't? It will trhow java.lang.IndexOutOfBoundsException. Can you
check if not empty and then do get(0)?

Good point will make that change.


- Balu


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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/42574/#review116405
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On Jan. 25, 2016, 9:01 p.m., Balu Vellanki wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/42574/
> -----------------------------------------------------------
> 
> (Updated Jan. 25, 2016, 9:01 p.m.)
> 
> 
> Review request for Falcon, Ajay Yadava, Pallavi Rao, Sowmya Ramesh, and Venkat Ranganathan.
> 
> 
> Bugs: Falcon-763
>     https://issues.apache.org/jira/browse/Falcon-763
> 
> 
> Repository: falcon-git
> 
> 
> Description
> -------
> 
> Support feed listing capability for catalog storage, as outlined in FALCON-761 for FileSystemStorage.
Falcon processes or feed replication provides status on instances. When the instance status
is WAITING for input, users have difficulty in identifying what feed is missing. In general
it would very helpful to users to get feed availability status natively through falcon.
> 
> 
> Diffs
> -----
> 
>   common/src/main/java/org/apache/falcon/catalog/CatalogPartition.java 9e35782 
>   common/src/main/java/org/apache/falcon/catalog/HiveCatalogService.java b988c3e 
>   common/src/main/java/org/apache/falcon/entity/CatalogStorage.java 143d9b4 
>   common/src/main/java/org/apache/falcon/entity/FeedHelper.java 8aa97ec 
>   common/src/main/java/org/apache/falcon/entity/FileSystemStorage.java 200f71f 
>   common/src/test/java/org/apache/falcon/entity/FeedHelperTest.java d565f94 
>   webapp/src/test/java/org/apache/falcon/catalog/CatalogStorageIT.java PRE-CREATION 
> 
> Diff: https://reviews.apache.org/r/42574/diff/
> 
> 
> Testing
> -------
> 
> Added unit test, integration test and tested this end2end
> 
> 
> Thanks,
> 
> Balu Vellanki
> 
>


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