NicoK commented on issue #6603: [FLINK-10198][state] Set Env object in DBOptions for RocksDB URL: https://github.com/apache/flink/pull/6603#issuecomment-415383492 In general, I like this idea, because before we would potentially end up with a log of additional RocksDB threads that might not be needed - they are all probably blocking on the same disk anyway! Did you measure the performance changes in some scenarios (1 RocksDB instances vs. 10 or even more) to verify that we are actually not making things worse with this change? Previously, with (for example) `FLASH_SSD_OPTIMIZED`, every RocksDB instance was using 4 threads and now all together will use 4? -> Should we tweak the default settings for the number of threads, also in the other profiles?
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