flink rocksdb where to configure mount point

[Siew Wai Yow]

Hi,


We configure rocksdb as statebackend and checkpoint dir persists to hdfs. When 
the job is run, rocksdb automatically mount to tmpfs /tmp, which consume memory.


            RocksDBStateBackend rocksdb = new RocksDBStateBackend(new 
FsStateBackend(hdfs://), true);
            env.setStateBackend(rocksdb);


Questions,

  1.  What happen if large state is larger than the tmpfs memory size? Will 
flink do something?
  2.  Is it possible to configure rocksdb dir via flink?

Thank you.

Regards,
Yow