Hi,
I agree that this looks like a serializer is shared between two threads, one of
them being the event processing loop. I am doubting that the problem is with
the async fs backend, because there is code in place that will duplicate all
serializers for the async snapshot thread and this is
Thanks for reporting this, also thanks for checking out that this works
with RocksDB and also with synchronous checkpoints.
I would assume that this issue lies not in the serializer itself, but in
accidental sharing in the FsStateBackend async snapshots.
Do you know if the issue still exists in
Hello all, I am running Flink 1.4.0 on Amazon EMR, and find that asynchronous
snapshots fail when using the Filesystem back-end. Synchronous snapshots
succeed, and RocksDB snapshots succeed (both async and sync), but async
Filesystem snapshots fail with this error: