Hi, I am trying to set up some benchmarking with a couple of IO options for saving checkpoints and have a couple of questions :
1. Does flink come with any IO benchmarking tools? I couldn't find any. I was hoping to use those to derive some insights about the storage performance and extrapolate it for the checkpoint use case. 2. Are there any metrics pertaining to restore from checkpoints? The only metric I can find is the last restore time, but neither the time it took to read the checkpoints, nor the time it took to restore the operator/task states seem to be covered. I am using RocksDB, but couldn't find any metrics relating to how much time it took to restore the state backend from rocksdb either. 3. I am trying to find documentation on how the states are serialized into the checkpoint files from multiple operators and tasks to tailor the testing use case, but can't seem to find any. Are there any bogs that go into this detail or would reading the code be the only option? -- Thanks, Deepthi
