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HDDS-10292. Extract configurator for size settings from MiniOzoneCluster - #6167
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…nt unit parameter; remove separation of config source/target
szetszwo
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@adoroszlai , thanks for working on this! I have to quick comments inlined.
| private OptionalLong blockSize = OptionalLong.empty(); | ||
| private OptionalInt streamBufferSize = OptionalInt.empty(); | ||
| private OptionalLong streamBufferFlushSize = OptionalLong.empty(); | ||
| private OptionalLong dataStreamBufferFlushSize = OptionalLong.empty(); | ||
| private OptionalLong dataStreamWindowSize = OptionalLong.empty(); | ||
| private OptionalLong streamBufferMaxSize = OptionalLong.empty(); | ||
| private OptionalInt dataStreamMinPacketSize = OptionalInt.empty(); |
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Let's also change the fields to not to use Optional. In general, it is not a good practice to use Optional as a field. See this comment by Brian Goetz (the main author of Java Concurrency in Practice).
You should almost never use it as a field of something or a method parameter.
| /** | ||
| * Helper for tests that want to set client stream properties. | ||
| */ | ||
| public final class ClientConfigBuilder { |
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Since this is for testing only, how about calling git ClientConfigForTesting?
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Thanks for the suggestion. I wasn't quite happy with the original name, but couldn't find a better one.
szetszwo
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+1 the change looks good.
adoroszlai
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Feb 6, 2024
Thanks @szetszwo for the review. |
What changes were proposed in this pull request?
Create a dedicated configurator object for setting the following properties for tests, instead of polluting
MiniOzoneCluster.Builderinterface:blockSizechunkSizedataStreamBufferFlushSizedataStreamMinPacketSizedatastreamWindowSizestreamBufferFlushSizestreamBufferMaxSizestreamBufferSizeThe first commit in the PR (284f3ec) tries to minimize change for easier review. Follow-up commits are minor additional improvements.
Moving the default values for these properties to
ozone-site.xmluncovered a problem withOzoneClientConfigconstruction, which is also fixed here (445db63). (See #6163 for similar fix in prod. code.)https://issues.apache.org/jira/browse/HDDS-10292
How was this patch tested?
CI:
https://github.com/adoroszlai/ozone/actions/runs/7782795270