This topic introduces the NATs-related configurations of Milvus.
NATS is a message-oriented middleware that allows data exchange between applications and services, segmented in the form of messages. Milvus uses NATS as a underlying engine for reliable storage and pub/sub of message streams. You can use it as an alternative to RocksMQ.
Under this section, you can configure message size, retention time and size, etc.
natsmq.server.port
Description
Default Value
Listening port of the NATS server.
4222
natsmq.server.storeDir
Description
Default Value
JetStream storage path.
/var/lib/milvus/nats
natsmq.server.maxFileStore
Description
Default Value
Maximum size of the file storage.
17179869184 (16 GB)
natsmq.server.maxPayload
Description
Default Value
Maximum size of the payload per message in bytes.
8388608 (8 MB)
natsmq.server.maxPending
Description
Default Value
Maximum buffer size per client connection in bytes.
67108864 (64 MB)
natsmq.server.initializeTimeout
Description
Default Value
Timeout duration for NATs to initialize in milliseconds.
4000 (4 seconds)
natsmq.monitor.debug
Description
Default Value
Whether to enable debug logs
false
natsmq.monitor.logTime
Description
Default Value
Whether to include timestamps in debug logs.
true
natsmq.monitor.logFile
Description
Default Value
Storage path of the log files generated.
If left unspecified, no log files are to be generated.
N/A
natsmq.monitor.logSizeLimit
Description
Default Value
Maximum size per log file in bytes.
If it is set to 0, no limit applies.
0
natsmq.rentention.maxAge
Description
Default Value
Maximum age per message in the P-channel in minutes.
4320 (3 days)
natsmq.rentention.maxBytes
Description
Default Value
Maximum age per message in the P-channel in minutes.
