> On March 25, 2014, 7:25 p.m., Jakob Homan wrote:
> > samza-core/src/main/scala/org/apache/samza/system/StreamMetadataCache.scala,
> >  line 46
> > <https://reviews.apache.org/r/19384/diff/3/?file=532922#file532922line46>
> >
> >     Should be getSystemStreamMetadata

I would rather not use the same method name as 
SystemAdmin.getSystemStreamMetadata, because this method is subtly different: 
SystemAdmin.getSystemStreamMetadata returns the metadata for streams within one 
particular system, whereas StreamMetadataCache.getStreamMetadata returns 
metadata for streams in any system. The methods have different type signatures, 
and I thought a different name would also help reduce confusion.


> On March 25, 2014, 7:25 p.m., Jakob Homan wrote:
> > samza-core/src/main/scala/org/apache/samza/system/StreamMetadataCache.scala,
> >  line 48
> > <https://reviews.apache.org/r/19384/diff/3/?file=532922#file532922line48>
> >
> >     Can you add an explicit return type?

Good idea, done on SAMZA-223.


> On March 25, 2014, 7:25 p.m., Jakob Homan wrote:
> > samza-core/src/main/scala/org/apache/samza/task/ReadableCoordinator.scala, 
> > line 20
> > <https://reviews.apache.org/r/19384/diff/3/?file=532923#file532923line20>
> >
> >     Is rb just very confused, or am I missing something?

RB is confused. It tracked a file rename incorrectly.


- Martin


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On March 22, 2014, 8:18 p.m., Martin Kleppmann wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/19384/
> -----------------------------------------------------------
> 
> (Updated March 22, 2014, 8:18 p.m.)
> 
> 
> Review request for samza.
> 
> 
> Repository: samza
> 
> 
> Description
> -------
> 
> SAMZA-179 Add caching of system metadata lookups
> 
> 
> SAMZA-179 Rename ReadableCoordinator to TaskCoordinators; improve shutdown 
> method signature
> 
> 
> SAMZA-179 Allow a task to detect when it has caught up, and shut down 
> gracefully.
> 
> 
> Diffs
> -----
> 
>   build.gradle fc596267e38c53cfc44f1cf52f8d6acedc848da8 
>   gradle/dependency-versions.gradle 612670dded2c2d290f1bc36ece1f3d53ffa4e971 
>   samza-api/src/main/java/org/apache/samza/task/TaskContext.java 
> 611507ed340d9a3fb7b8cd5e0e0ce37b5561da32 
>   samza-api/src/main/java/org/apache/samza/task/TaskCoordinator.java 
> 192b226c9e6105cf666d484ac33bb0f854de7688 
>   samza-core/src/main/scala/org/apache/samza/container/SamzaContainer.scala 
> c101b59f3e476dcc2e3b7870d53d0d36002f2434 
>   samza-core/src/main/scala/org/apache/samza/container/TaskInstance.scala 
> c4b135c0f46edaa7fc0e4c0bf909e1ffa9515242 
>   samza-core/src/main/scala/org/apache/samza/system/StreamMetadataCache.scala 
> PRE-CREATION 
>   samza-core/src/main/scala/org/apache/samza/task/ReadableCoordinator.scala 
> aaf631ec7acd710ab8a5b288f696233223569b60 
>   samza-core/src/main/scala/org/apache/samza/task/TaskCoordinators.scala 
> PRE-CREATION 
>   samza-core/src/main/scala/org/apache/samza/util/Util.scala 
> 5b429dfece38d877175fa0495db6450e01d82689 
>   
> samza-core/src/test/scala/org/apache/samza/container/TestSamzaContainer.scala 
> a2d5820e9eeb7590d208cf7fb7025c589f451bca 
>   samza-core/src/test/scala/org/apache/samza/container/TestTaskInstance.scala 
> 27b4ca5d7995536aa66f63b7329caddf41865bb4 
>   
> samza-core/src/test/scala/org/apache/samza/system/TestStreamMetadataCache.scala
>  PRE-CREATION 
>   
> samza-core/src/test/scala/org/apache/samza/task/TestReadableCoordinator.scala 
> c45ed9bb1b3916cd4c4043e36272b4e3508bfb87 
>   samza-core/src/test/scala/org/apache/samza/task/TestTaskCoordinators.scala 
> PRE-CREATION 
>   
> samza-test/src/test/scala/org/apache/samza/test/performance/TestSamzaContainerPerformance.scala
>  3dc263011b955cfccac83e71384b865f8fc2b722 
> 
> Diff: https://reviews.apache.org/r/19384/diff/
> 
> 
> Testing
> -------
> 
> 
> Thanks,
> 
> Martin Kleppmann
> 
>

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