rocketmq/docs/en/best_practice.md

Best practices

1 Producer

2 Consumer

3 Broker

3.1 Broker Role

3.2 FlushDiskType

3.3 Broker Configuration

Parameter name	Default	Description
listenPort	10911	listen port for client
namesrvAddr	null	name server address
brokerIP1	InetAddress for network interface	Should be configured if having multiple addresses
brokerIP2	InetAddress for network interface	If configured for the Master broker in the Master/Slave cluster, slave broker will connect to this port for data synchronization
brokerName	null	broker name
brokerClusterName	DefaultCluster	this broker belongs to which cluster
brokerId	0	broker id, 0 means master, positive integers mean slave
storePathCommitLog	$HOME/store/commitlog/	file path for commit log
storePathConsumerQueue	$HOME/store/consumequeue/	file path for consume queue
mapedFileSizeCommitLog	1024 * 1024 * 1024(1G)	mapped file size for commit log
deleteWhen	04	When to delete the commitlog which is out of the reserve time
fileReserverdTime	72	The number of hours to keep a commitlog before deleting it
brokerRole	ASYNC_MASTER	SYNC_MASTER/ASYNC_MASTER/SLAVE
flushDiskType	ASYNC_FLUSH	{SYNC_FLUSH/ASYNC_FLUSH}. Broker of SYNC_FLUSH mode flushes each message onto disk before acknowledging producer. Broker of ASYNC_FLUSH mode, on the other hand, takes advantage of group-committing, achieving better performance.