Hi all,

We are currently experiencing long checkpointing times on S3 and are
wondering how abnormal it is compared to other loads and setups. Could some
of you share a few stats in your running architecture so we can compare?

Here are our stats:

*Architecture*: 28 TM on Kubernetes, 4 slots per TM, local NVME SSDs
(r5d.2xlarge instances), RocksDB state backend, incremental checkpoints on
Amazon S3 (without entropy injection), checkpoint interval of 1 hour

*Typical state size for one checkpoint:* 220gb

*Checkpointing duration (End to End):* 58 minutes

We are surprised to see such a long duration to send 220gb to S3, we
observe no backpressure in our job and the checkpointing duration is more
or less the same for each subtask. We'd love to check if it's a normal
duration or not, so thanks a lot for your answers!

Cheers,
Robin

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