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Posted to issues@flink.apache.org by GitBox <gi...@apache.org> on 2018/10/16 22:33:40 UTC
[GitHub] joey opened a new pull request #6862: [FLINK-10213] Task managers
cache a negative DNS lookup of the blob server indefinitely
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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