Description

when a cluster of zookeeper is not running for some error, then decreasing replicas will delete pod automatically.
pod exec zookeeperTeardown.sh to connect zookeeper will fail ,then it will not remove node on this cluster of zookeeper.
But the pod have been delete without update zookeeper configure on zoo.cfg

Importance

must-have

Location

ZNODE_PATH="/zookeeper-operator/$CLUSTER_NAME"
CLUSTERSIZE=java -Dlog4j.configuration=file:"$LOG4J_CONF" -jar /root/zu.jar sync $ZKURL $ZNODE_PATH
echo "CLUSTER_SIZE=$CLUSTERSIZE, MyId=$MYID"
if [[ -n "$CLUSTERSIZE" && "$CLUSTERSIZE" -lt "$MYID" ]]; then
java -Dlog4j.configuration=file:"$LOG4J_CONF" -jar /root/zu.jar remove $ZKURL $MYID
echo $?
fi

Suggestions for an improvement

fix on zookeepercluster_controller.go:reconcileStatefulSet
If ClusterSize decrease, do reconfig remove here