[ZOOKEEPER-4783] leader crash because of zxid 32b rollover but no other server takes the lead

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 3.8.3

Environment

Linux amd64 Ubuntu 20.04.5

Java OpenJDK17U-jre_x64_linux_hotspot_17.0.8.1_1.tar.gz

• Assignee: Unassigned
• Reporter: Stéphane Loeuillet
• Created: 05/Jan/24 06:43
• Updated: 05/Jan/24 15:46

Description

Got a 5 node cluster running on baremetal servers (with NVMe) used by a ClickHouse cluster on a separate cluster.

This morning, a crash on the leader did let my clusters unusable as while the leader crashed, none of the 4 followers did take the lead

 

zookeeper leader was zookeeper08

05/06/07/09 were the followers

 

Only a restart of zookeeper05 process did unfreeze the whole cluster