Jetty Connection

[SarathChandraRS]

Jetty Version

Jetty Environment

Java Version

Question
Hi Team,
The question is related to Jetty Connection Limit.
In general, we use Connection limit as configuration and we set this value before Jetty start.
But as we have setMaxConnections() method on ConnectionLimit class we can change the connections dynamically.
Now the question is would it be ok to change the connection limit dynamically without restart. Since the method is supported mostly it would be. But I would like to know if there are any drawbacks with this mechanism ?
Thanks.

[joakime]

What version of Jetty?
How are you configuring Jetty's Connection Limit?
What connectors are you using?
What are your connector configurations?
We need more information.

[joakime]

For Jetty 12, using a org.eclipse.jetty.server.ConnectionLimit bean that was created before the Connector were started, you can use the ConnectionLimit.setMaxConnections(int).
But ...

• that will only work on Connectors that have "accepting" event.
• if the "limiting" feature has kicked in (you are at max) the change will not undo the limiting in place.
• after setting the setMaxConnection(int) only a newly accepted connection will cause the state change in the ConnectionLimit.
• if you use multiple Connectors, the limit is across all connectors, not per connector.

[SarathChandraRS]

Thanks @joakime
We are currently using Jetty 10.
As of now we are configuring it as part of constructor. Which means we set this value before we start the server.
We have multiple connectors. Around 2. We are using using ServerConnector.

[joakime]

Jetty 11 and older are now at End of Community Support.

• EoCS (End of Community Support) for Jetty 10 / Jetty 11 - January 2024 #10485
• EoCS (End of Community Support) for Jetty 9 - June 2022 #7958

I can only comment about behaviors in Jetty 12 (the only supported version of Jetty at the moment)