presto-main/src/main/java/io/prestosql/operator/ExchangeClientConfig.java/ExchangeClientConfig/setMaxBufferSize
class ExchangeClientConfig:    @Config("exchange.max-buffer-size")
    public ExchangeClientConfig setMaxBufferSize(DataSize maxBufferSize)
    {
        this.maxBufferSize = maxBufferSize;
        return this;
    }