[ZOOKEEPER-4814] Protocol desynchronization after Connect for (some) old clients

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.9.0
• Fix Version/s: 3.10.0, 3.9.3
• Component/s: server
• Labels: pull-request-available
• Assignee: Damien Diederen
• Reporter: Damien Diederen
• Created: 07/Mar/24 15:08
• Updated: 24/Oct/24 20:09
• Resolved: 11/Aug/24 16:14

Description

Some old clients experience a protocol synchronization after receiving a ConnectResponse from the server.

This started happening with ZOOKEEPER-4492, "Merge readOnly field into ConnectRequest and Response," which writes overlong responses to clients which do not know about the readOnly flag.

(One example of such a client is ZooKeeper's own C client library prior to version 3.5!)

Issue Links

• links to: GitHub Pull Request #2146