RocksMQ-related Configurations

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This topic introduces the RocksMQ-related configurations of Milvus.

RocksMQ is the underlying engine supporting Milvus standalone's reliable storage and publication/subscription of message streams. It is implemented on the basis of RocksDB.

Under this section, you can configure message size, retention time and size, etc.

`rocksmq.path`

Description	Default Value
Prefix of the key to where Milvus stores data in RocksMQ. Caution: Changing this parameter after using Milvus for a period of time will affect your access to old data. It is recommended to change this parameter before starting Milvus for the first time. Set an easy-to-identify root key prefix for Milvus if etcd service already exists.	/var/lib/milvus/rdb_data

`rocksmq.rocksmqPageSize`

Description	Default Value
The maximum size of messages in each page in RocksMQ. Messages in RocksMQ are checked and cleared (when expired) in batch based on this parameters. Unit: Byte	2147483648

`rocksmq.retentionTimeInMinutes`

Description	Default Value
The maximum retention time of acked messages in RocksMQ. Acked messages in RocksMQ are retained for the specified period of time and then cleared. Unit: Minute	10080

`rocksmq.retentionSizeInMB`

Description	Default Value
The maximum retention size of acked messages of each topic in RocksMQ. Acked messages in each topic are cleared if their size exceed this parameter. Unit: MB	8192