Hi Gyula, Have you read our tuning guide? https://ci.apache.org/projects/flink/flink-docs-stable/ops/state/large_state_tuning.html#tuning-rocksdb <https://ci.apache.org/projects/flink/flink-docs-stable/ops/state/large_state_tuning.html#tuning-rocksdb>
Synchronous part is mostly about flushing data to disks, so you could try to optimise your setup having that in mind. Limiting the size of a page cache, speeding up the writes (using more/faster disks…), etc… Maybe you can also look at online resources how to speedup calls to `org.rocksdb.Checkpoint#create`. Piotrek > On 3 May 2019, at 10:30, Gyula Fóra <gyula.f...@gmail.com> wrote: > > Hi! > > Does anyone know what parameters might affect the RocksDB native checkpoint > time? (basically the sync part of the rocksdb incremental snapshots) > > It seems to take 60-70 secs in some cases for larger state sizes, and I > wonder if there is anything we could tune to reduce this. Maybe its only a > matter of size i dont know. > > Any ideas would be appreciated :) > Gyula
