joey opened a new pull request #6862: [FLINK-10213] Task managers cache a negative DNS lookup of the blob server indefinitely URL: https://github.com/apache/flink/pull/6862 ## What is the purpose of the change This pull request fixes a bug where a negative DNS resolution for the blob server address could be cached forever. ## Brief change log * Updated BlobClient to create the socket using the hostname and port rather than the InetSocketAddress. ## Verifying this change This change added tests and can be verified as follows: * Added a test case to BlobClientTest for unresolved InetSocketAddresses. The test fails without the implemented fix and passes with implemented fix. ## Does this pull request potentially affect one of the following parts: - Dependencies (does it add or upgrade a dependency): (yes / **no**) - The public API, i.e., is any changed class annotated with `@Public(Evolving)`: (yes / **no**) - The serializers: (yes / **no** / don't know) - The runtime per-record code paths (performance sensitive): (yes / **no** / don't know) - Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Yarn/Mesos, ZooKeeper: (yes / **no** / don't know) - The S3 file system connector: (yes / **no** / don't know) ## Documentation - Does this pull request introduce a new feature? (yes / **no**) - If yes, how is the feature documented? (**not applicable** / docs / JavaDocs / not documented)
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