Hi,

Sihua is right, of course we would like to update our RocksDB version but are 
currently blocked on a performance regression. Here is our issue in the RocksDB 
tracker for this: https://github.com/facebook/rocksdb/issues/3865 
<https://github.com/facebook/rocksdb/issues/3865> .

Best,
Stefan

> Am 18.05.2018 um 08:52 schrieb sihua zhou <summerle...@163.com>:
> 
> 
> Hi makeyang,
> there are some cases under 
> _org.apache.flink.contrib.streaming.state.benchmark.*_ that you can refer to. 
> But, I not sure whether it's possible to upgrade the RocksDB to any higher 
> version because the regression of the merge operator, the comments in this PR 
> https://github.com/apache/flink/pull/5937 
> <https://github.com/apache/flink/pull/5937> may also give you some help.
> 
> Best, Sihua
> 
> On 05/18/2018 11:05,makeyang<riverbuild...@hotmail.com> 
> <mailto:riverbuild...@hotmail.com> wrote: 
> I'd like to integrate newer version of rocksdb with flink. I'd like to know
> if there are existing tools/ways to benchmark the performance of rocksdb
> state backend to see if there are performence improve or drop?
> 
> 
> MaKeyang
> TIG.JD.COM
> 
> 
> 
> 
> --
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