Hi, there is some documentation on this topic here https://github.com/facebook/rocksdb/wiki/Write-Stalls <https://github.com/facebook/rocksdb/wiki/Write-Stalls>. Increasing the buffer size seems ok, and the downside is a potentially higher memory footprint.
Best, Stefan > Am 02.08.2017 um 10:24 schrieb Kien Truong <duckientru...@gmail.com>: > > Hi, > > With the setting SPINNING_DISK_OPTIMIZED_HIGH_MEM, I'm having a lot of > warning from RocksDB: > > Stalling writes because we have 3 immutable memtables (waiting for flush), > max_write_buffer_number is set to 4 rate 16777216 > > Increasing max_write_buffer_number causes the message to go away, but I want > to ask if there are any downside to it? > > Best regards, > Kien Truong