2.x/3.x: Support ability to timeout idle connections

[barchetta]

Environment Details

• Helidon Version: 2.6.7
• Helidon SE

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Problem Description

In Helidon 4 the WebServer supports idle-connection-timeout that controls how long it should wait before closing a connection that has no traffic on it.

Helidon 2 and 3 (which are Netty based) do not appear to have such capability. To implement this might require using Netty's IdleStateHandler

[ggsrivas]

HI Team,
We are facing this issue on our service. The open socket count keeps going up and stops accepting new connection in 7-8 days. We are forced to restart the service to clean those open connections. This is affecting our customer as the API as inaccessible when this happens. Any ETA for this fix?

[spericas]

Fixed in 2.x and 3.x

[ggsrivas]

@spericas should we expect a 2.6.9 release soon with this fix? I don't see that tag on Github.

[spericas]

@spericas should we expect a 2.6.9 release soon with this fix? I don't see that tag on Github.

@barchetta ?

[barchetta]

@ggsrivas It will be soon, but I do not have an ETA at the moment. I am making a build change so that we can produce a 2.6.9-SNAPSHOT build that you can test with. I will notify you once that is ready.

[spericas]

@ggsrivas It will be soon, but I do not have an ETA at the moment. I am making a build change so that we can produce a 2.6.9-SNAPSHOT build that you can test with. I will notify you once that is ready.

That's actually a great idea, trying out a SNAPSHOT version to verify this works in your environment.

[barchetta]

@ggsrivas 2.6.9-SNAPSHOT with the fix is available at: https://oss.sonatype.org/content/repositories/snapshots/io/helidon/