[jdk17u-dev] RFR: 8298381: Improve handling of session tickets for multiple SSLContexts

[Paul Hohensee]

On Mon, 29 Jul 2024 17:54:17 GMT, David Schlosnagle <duke at openjdk.org> wrote:

> I would like to propose a backport of [JDK-8298381](https://bugs.openjdk.org/browse/JDK-8298381) commit https://github.com/openjdk/jdk/commit/debe5879aa7118a114ff6fcf8d15951757ae70a8 that landed in JDK 21 to jdk17u. This change significantly improves TLS handshaking latency and throughput for services that utilize multiple `SSLContext`. As an example, Apache Kafka running on JDK 17 with significant numbers of clients may see over 40% of CPU utilization due to `SessionTicketExtension$KeyState.cleanup(HandshakeContext)`.
> 
> @simonis or others, would you be willing to sponsor this change to JDK 17u and create a corresponding JIRA ticket?
> 
> Thanks!

Lgtm. I can sponsor, Volker is on vacation. No need to create a backport JBS issue, the bot will do that when it pushes the backport.

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Marked as reviewed by phh (Reviewer).

PR Review: https://git.openjdk.org/jdk17u-dev/pull/2750#pullrequestreview-2205854445