Hellow everyone :
Up to now, To adjuest rocksdb flush thread the only way is implement
ConfigurableRocksDBOptionsFactory #setMaxBackgroundFlushes by user. I found
FLINK-22059 to solve this problem. The pr has never been executed, i want to
finish this pr. Can anyone assignee this pr to me ? My jira id is
:zhongyou.lee.
benefity from this pr
Improve rocksdb write performance . Such as: multi slot per TaskManagers ,
savepoint recovery.
how to finish those pr
Add state.backend.rocksdb.flush.thread.num in RocksDBConfigurableOptions and
flink configure document description
Use currentOptions.getEnv().setBackgroundThreads() instend of
setMaxBackgroundFlushes method to change thread.(which support in 5.17 and
above rocksdb)
tell user above rocksdb 5.17 and below version rocksdb setMaxBackgroundFlushes
api has problem as below:https://github.com/facebook/rocksdb/issues/4847.
