Avamar: MCS Does Not Start Due to RabbitMQ Misconfiguration

Summary: MCS does not start due to RabbitMQ misconfiguration.

This article applies to This article does not apply to This article is not tied to any specific product. Not all product versions are identified in this article.
Check out other resources

Symptoms

MCS does not start with the errors seen below:

at com.rabbitmq.client.impl.AMQChannel$BlockingRpcContinuation.getReply(AMQChannel.java:343)
        at com.rabbitmq.client.impl.AMQChannel.privateRpc(AMQChannel.java:216)
        at com.rabbitmq.client.impl.AMQChannel.rpc(AMQChannel.java:202)
        at com.rabbitmq.client.impl.AMQConnection.start(AMQConnection.java:347)
        ... 19 more
Caused by: java.io.EOFException
        at java.io.DataInputStream.readUnsignedByte(DataInputStream.java:290)
        at com.rabbitmq.client.impl.Frame.readFrom(Frame.java:95)
        at com.rabbitmq.client.impl.SocketFrameHandler.readFrame(SocketFrameHandler.java:131)
        at com.rabbitmq.client.impl.AMQConnection$MainLoop.run(AMQConnection.java:515)
Administrator Server startup failed at Tue Aug 08 12:33:20 EDT 2023: Closing all connections to database. Node start failed.
Starting REST API Service....
REST API Service startup failed.
Start MC Rest: processing time = 10 s.

 

Cause

The root cause is being unable to connect the RabbitMQ dynamic shovels with a DPC that is monitoring Avamar at the time that MCS is starting.

 

Resolution

Temporarily disable the BRM service by setting the following parameter to false in mcserver's xml configuration file.

/usr/local/avamar/var/mc/server_data/prefs/mcserver.xml

<entry key="enableBrmService" value="false" />

 

Start MCS.

 

Because a DPC is likely set to monitor the Avamar, the DPC automatically sets the key "enableBrmService" back to true after MCS starts.

 

Affected Products

Avamar
Article Properties
Article Number: 000217287
Article Type: Solution
Last Modified: 08 Jan 2026
Version:  6
Find answers to your questions from other Dell users
Support Services
Check if your device is covered by Support Services.