我已將 Kubernets 叢集（3 個主伺服器、3 個 etcd 伺服器資料庫）從1.18升級到v1.19.13，將 ETCD 升級到3.4.13.由於 API 伺服器不穩定，請不斷切換不同的 etcd 伺服器，因為該叢集無法正常運作。這些叢集在 CentOS steam 8 上運作。
有幫助解決這個問題嗎？這個版本有已知問題嗎？
API伺服器日誌
I0731 00:54:39.498953 1 client.go:360] parsed scheme: "passthrough"
I0731 00:54:39.499025 1 passthrough.go:48] ccResolverWrapper: sending update to cc: {[{https://0.0.0.02:2379 <nil> 0 <nil>}] <nil> <nil>}
I0731 00:54:39.499035 1 clientconn.go:948] ClientConn switching balancer to "pick_first"
I0731 00:54:40.241615 1 client.go:360] parsed scheme: "passthrough"
I0731 00:54:40.241681 1 passthrough.go:48] ccResolverWrapper: sending update to cc: {[{https://0.0.0.01:2379 <nil> 0 <nil>}] <nil> <nil>}
I0731 00:54:40.241691 1 clientconn.go:948] ClientConn switching balancer to "pick_first"
I0731 00:54:45.348969 1 client.go:360] parsed scheme: "passthrough"
I0731 00:54:45.349030 1 passthrough.go:48] ccResolverWrapper: sending update to cc: {[{https://0.0.0.03:2379 <nil> 0 <nil>}] <nil> <nil>}
I0731 00:54:45.349040 1 clientconn.go:948] ClientConn switching balancer to "pick_first"
I0731 00:55:16.460379 1 client.go:360] parsed scheme: "passthrough"
I0731 00:55:16.460428 1 passthrough.go:48] ccResolverWrapper: sending update to cc: {[{https://0.0.0.01:2379 <nil> 0 <nil>}] <nil> <nil>}
I0731 00:55:16.460439 1 clientconn.go:948] ClientConn switching balancer to "pick_first"
I0731 00:55:17.461906 1 client.go:360] parsed scheme: "passthrough"
etcd 看起來很健康
# /opt/bin/etcdctl.sh version
etcdctl version: 3.4.13
API version: 3.4
/opt/bin/etcdctl.sh endpoint health
127.0.0.1:2379 is healthy: successfully committed proposal: took = 9.739533ms
# /opt/bin/etcdctl.sh check perf
60 / 60 Boooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo! 100.00% 1m0s
PASS: Throughput is 150 writes/s
PASS: Slowest request took 0.042491s
PASS: Stddev is 0.001743s
PASS
# /opt/bin/etcdctl.sh endpoint status --cluster -w table
+----------------------------+------------------+---------+---------+-----------+------------+-----------+------------+--------------------+--------+
| ENDPOINT | ID | VERSION | DB SIZE | IS LEADER | IS LEARNER | RAFT TERM | RAFT INDEX | RAFT APPLIED INDEX | ERRORS |
+----------------------------+------------------+---------+---------+-----------+------------+-----------+------------+--------------------+--------+
| https://0.0.0.02:2379 | 15cd65a732ebd5d8 | 3.4.13 | 26 MB | false | false | 9305 | 19813854 | 19813854 | |
| https://0.0.0.03:2379 | add66a254676e690 | 3.4.13 | 26 MB | true | false | 9305 | 19813854 | 19813854 | |
| https://0.0.0.01:2379 | e2811ed02ce71623 | 3.4.13 | 26 MB | false | false | 9305 | 19813854 | 19813854 | |
+----------------------------+------------------+---------+---------+-----------+------------+-----------+------------+--------------------+--------+