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Default settings are not very efficient, since they do not even reuse connections. And when each query requires connection you can have only ~80 QPS, while by simply enabling connection reuse (connection_auto_close=false) you can have ~500 QPS (and by increasing connection_pool_size you can have better QPS throughput). So this patch allows to pass through some connection related settings for the StorageMySQL engine, like: - connection_pool_size=16 - connection_max_tries=3 - connection_auto_close=true v2: remove connection_pool_default_size v3: remove num_tries_on_connection_loss |
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