Comments (1)
@tzulitai thanks again for picking this up. I think it is quite urgent, because we're finding that the current implementation is not workable. As we saw with #77, the reader group imposes a single pass over the data, which is (I believe) a violation of the contract of input format.
Please ensure that the solution is compatible with Flink iteration and with multiple executions. For example, the following should work:
DataSource<Integer> source = env.createInput(new FlinkPravegaInputFormat<>(...));
Assert.assertEquals("count is incorrect (first pass)", expectedCount, source.count());
Assert.assertEquals("count is incorrect (second pass)", expectedCount, source.count());
I find that a single pass does suffice for most scenarios within a single job, except when a failure occurs as discussed in #56, due to intermediate result caching.
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Related Issues (20)
- Update connector version to 0.12.1-SNAPSHOT HOT 1
- Fix javadoc warning
- Update Pravega and schema registry docker image version
- Pravega container fails to connect with segment store under containerized testing environment
- Unable to build connector via Gradle HOT 1
- Upgrade Flink 1.16
- Reduce TableSchema usages in Table API connectors
- Implement metrics for the Sink API HOT 2
- Use JacksonMapperFactory for json serialization
- Support protobuf format in Pravega catalog HOT 1
- Use `DeliveryGuarantee` enum as sink configuration HOT 2
- Update the build tag on Readme
- Add more debug log for writer initialization
- master-branch-connector ready for use? HOT 4
- Let Pravega internal thread pool to deal with checkpoint
- Explicitly cancel outstanding checkpoints when checkpoints get stuck
- Upgrade Flink 1.17
- Update connector version to 0.14.0-SNAPSHOT
- Update connector version to 0.13.1-SNAPSHOT
- Upgrade to flink 1.18.1
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