Flink FSStateBackend Checkpointing Buffer size

[chiggi_dev]

Hi,

I am trying to use Gluster File System as my FileSystem backed by RocksDB as state backend.

 

I can see from FsCheckpointStateOutputStream that the DEFAULT_WRITE_BUFFER_SIZE = 4096.

Is the buffer size configurable in any way? Any idea about the checkpointing performance with default buffer size? 

Thanks,

Chirag