GitHub user iushas created a discussion: 4C32G的kvrocks ,rocksdb 的最优配置

1、我目前的配置如下,这个配置可以吗,需要做调整吗,请大佬协助。 
```

# rocksdb
rocksdb.metadata_block_cache_size 8192
rocksdb.subkey_block_cache_size 8192
rocksdb.share_metadata_and_subkey_block_cache yes
rocksdb.max_open_files 65535
rocksdb.write_buffer_size 256
rocksdb.target_file_size_base 256
rocksdb.max_write_buffer_number 4
rocksdb.max_background_compactions 4
rocksdb.max_background_flushes 4
rocksdb.max_sub_compactions 4
rocksdb.max_total_wal_size 4096
rocksdb.wal_ttl_seconds 32400
rocksdb.wal_size_limit_mb 65536
rocksdb.block_size 16384
rocksdb.cache_index_and_filter_blocks yes
rocksdb.compression snappy
rocksdb.compaction_readahead_size 2097152
rocksdb.delayed_write_rate 0
rocksdb.enable_pipelined_write yes
rocksdb.level0_slowdown_writes_trigger 48
rocksdb.level0_stop_writes_trigger 96
rocksdb.max_background_jobs 4
rocksdb.block_cache_size 16384

rocksdb.stats_dump_period_sec 0
rocksdb.disable_auto_compactions no
```
2、另外我是用sentinel 监控kvrocks的主从架构, 当kvrocks 
做compaticon的时候,经常会触发sentienl的切换操作,导致kvrocks 频繁切换。
这个可以怎么解决

@ShooterIT  

GitHub link: https://github.com/apache/kvrocks/discussions/3298

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