Intermitent SSL Handshake Time between spingboot amqp client and azure service bus

Question

Intermitent SSL Handshake Time between spingboot amqp client and azure service bus

KEITA Fousseni (CNH) 0

We are having this intermittent issue in our production azure service bus.

Jms health check is throwing following exception below. I tried many settings of amqps but we are still getting this handshake timeout error once a while.

I will appreciate someone has any insight about this issue. We think it is an issue in azure side.

Caused by: org.apache.qpid.jms.provider.exceptions.ProviderIOException: handshake timed out after 10000ms

at org.apache.qpid.jms.provider.exceptions.ProviderExceptionSupport.createOrPassthroughFatal(ProviderExceptionSupport.java:46) ~[qpid-jms-client-2.0.0.jar!/:na]

at org.apache.qpid.jms.provider.amqp.AmqpProvider.connect(AmqpProvider.java:309) ~[qpid-jms-client-2.0.0.jar!/:na]

at org.apache.qpid.jms.JmsConnection.connect(JmsConnection.java:162) ~[qpid-jms-client-2.0.0.jar!/:na]

... 84 common frames omitted

Caused by: io.netty.handler.ssl.SslHandshakeTimeoutException: handshake timed out after 10000ms

Rakesh Mishra 335 Reputation points Microsoft External Staff Moderator

2025-08-25T10:52:34.2933333+00:00

Hi @KEITA Fousseni (CNH) ,

Welcome to the Microsoft Q&A Platform! Thank you for asking your question here.

Following up to see if you're still facing the issue and do let me know if any further assistance on this. Please accept as Yes if the answer is helpful so that it can help others in the community.
Rakesh Mishra 335 Reputation points Microsoft External Staff Moderator

2025-08-26T10:14:58.4333333+00:00

@KEITA Fousseni (CNH) , following up to see if you had a chance to check my previous response. Please do let me know if you're still facing the issue and need further assistance on this.
KEITA Fousseni (CNH) 0 Reputation points

2025-08-26T13:26:06.2+00:00

@Rakesh Mishra I am still having issue. I tried the recommendation from Hossein, but it did not work.

1 answer

Your answer

Rakesh Mishra 335 Reputation points Microsoft External Staff Moderator

2025-08-25T10:52:34.2933333+00:00

Hi @KEITA Fousseni (CNH) ,

Welcome to the Microsoft Q&A Platform! Thank you for asking your question here.

Following up to see if you're still facing the issue and do let me know if any further assistance on this. Please accept as Yes if the answer is helpful so that it can help others in the community.
Rakesh Mishra 335 Reputation points Microsoft External Staff Moderator

2025-08-26T10:14:58.4333333+00:00

@KEITA Fousseni (CNH) , following up to see if you had a chance to check my previous response. Please do let me know if you're still facing the issue and need further assistance on this.
KEITA Fousseni (CNH) 0 Reputation points

2025-08-26T13:26:06.2+00:00

@Rakesh Mishra I am still having issue. I tried the recommendation from Hossein, but it did not work.

Answer 1

Thanks for posting your question in the Microsoft Q&A forum.

Your intermittent SSL handshake timeout issues between Spring Boot AMQP and Azure Service Bus are likely tied to network restrictions or connection pooling behavior, rather than a direct Azure fault. Proxies or firewalls may be blocking AMQP ports (5671/5672) or interfering with SSL handshakes; switching to WebSocket transport over port 443 can help in restricted environments. Another common cause is idle timeouts: Service Bus closes idle AMQP links after 10 minutes and full connections after 15 minutes, which can break Spring’s default CachingConnectionFactory. A recommended fix is to switch to JmsPoolConnectionFactory, which actively manages and evicts idle connections, reducing handshake failures. You should also confirm that your connection string and endpoint are correct, Azure IP ranges are allowlisted, proxies are not inspecting SSL traffic, and you are running the latest qpid-jms-client and Azure SDK, since older versions have known handshake and idle timeout bugs. In short, addressing network accessibility and using a robust connection pooling strategy usually resolves these intermittent SSL timeouts

Please don't forget to close up the thread here by upvoting and accept it as an answer if it is helpful

KEITA Fousseni (CNH) 0 Reputation points

2025-08-22T17:34:29.44+00:00

My app is using qpid-jms-client.2.0.0 via springboot 3.3.3. The connection string is fine because it is working most of time except failed during spring health check calls in some cases. The server is amqps://namespace.servicebus.windows.net. I will try webSocket and upgrade qpid-jms-client and see if that works.

Thanks

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Intermitent SSL Handshake Time between spingboot amqp client and azure service bus

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