Hii , We upgraded from Zookeeper 3.9.1 to 3.9.2. TLS was configured before the upgrade. No TLS version specified as part of zoo.cfg. Post upgrade, client to server connection is broken with TLS error (The client supported protocol versions [TLSv1.2, TLSv1.1, TLSv1] are not accepted by server preferences [TLS13]). Looking at the logs, client is using TLS 1.2 and but it looks like server is forcing to use TLS 1.3. Its IBM JDK. Post this, made below changes to zoo.cfg and client-server connection worked fine. ssl.protocol=TLSv1.2. Is this a new change in 3.9.2 which forces to use 1.3 by default?
Also , we have raised a Jira. https://issues.apache.org/jira/browse/ZOOKEEPER-4888 We would really appreciate if we could get a quick solution to the issue. Thanks, Aayush — Aayush Gupta Software Engineer II Precisely.com p <br />ATTENTION: -----The information contained in this message (including any files transmitted with this message) may contain proprietary, trade secret or other confidential and/or legally privileged information. Any pricing information contained in this message or in any files transmitted with this message is always confidential and cannot be shared with any third parties without prior written approval from Precisely. This message is intended to be read only by the individual or entity to whom it is addressed or by their designee. If the reader of this message is not the intended recipient, you are on notice that any use, disclosure, copying or distribution of this message, in any form, is strictly prohibited. If you have received this message in error, please immediately notify the sender and/or Precisely and destroy all copies of this message in your possession, custody or control.
