Cannot create streaming pipelines without setting checkpoint directory

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Streaming pipeline with file source an

d file sink fails with following error.

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Albert Shau May 16, 2019 at 6:12 PM

Albert Shau May 16, 2019 at 5:26 PM

Even though it's not in the exported json, the UI is sending an empty string for the checkpointDir to the backend, which causes this issue. Not sure if this was introduced recently or always a problem.

In general, the UI should not be sending empty strings when a value is not provided, as an empty string can possibly mean something different than a null value. In general the backend should also protect against these cases when possible, when an empty string is never an expected valid value.

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Created May 16, 2019 at 1:27 AM
Updated May 23, 2019 at 2:33 AM
Resolved May 16, 2019 at 8:18 PM