Pulsar-related Configurations

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This topic introduces the Pulsar-related configurations of Milvus.

Pulsar is the underlying engine supporting Milvus cluster's reliable storage and publication/subscription of message streams.

Under this section, you can configure Pulsar address, the message size, etc.

`pulsar.address`

Description	Default Value
IP address of Pulsar service. Environment variable: `PULSAR_ADDRESS` `pulsar.address` and `pulsar.port` together generate the valid access to Pulsar. Pulsar preferentially acquires the valid IP address from the environment variable `PULSAR_ADDRESS` when Milvus is started. Default value applies when Pulsar is running on the same network with Milvus.	localhost

`pulsar.port`

Description	Default Value
Port of Pulsar service. Environment variable: `PULSAR_ADDRESS` `pulsar.address` and `pulsar.port` together generate the valid access to Pulsar. Pulsar preferentially acquires the valid port from the environment variable `PULSAR_ADDRESS` when Milvus is started.	6650

`pulsar.maxMessageSize`

Description	Default Value
The maximum size of each message in Pulsar. Unit: Byte By default, Pulsar can transmit at most 5 MB of data in a single message. When the size of inserted data is greater than this value, proxy fragments the data into multiple messages to ensure that they can be transmitted correctly. If the corresponding parameter in Pulsar remains unchanged, increasing this configuration will cause Milvus to fail, and reducing it produces no advantage.	5242880

Description

Default Value

The maximum size of each message in Pulsar.

Unit: Byte

By default, Pulsar can transmit at most 5 MB of data in a single message. When the size of inserted data is greater than this value, proxy fragments the data into multiple messages to ensure that they can be transmitted correctly.

If the corresponding parameter in Pulsar remains unchanged, increasing this configuration will cause Milvus to fail, and reducing it produces no advantage.

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