Hi All, As a result of our investigation we've found major performance degradation described here [1].
TLDR: list operator state restore from S3 is significantly slower from 1.18.2. Both uncompressed and compressed state is effected. ~6Mb restore takes ~62 hours. We've created already a solution for uncompressed state [2]. This works fine under heavy load, but important to mention here that the compressed state still suffers from this issue. Since I was not there when the compressed state was born I would ask some help to sort that part out too. [1] https://issues.apache.org/jira/browse/FLINK-36530 [2] https://github.com/apache/flink/pull/25509 BR, G
