panic: newURLs [redacted] should never fail: URL scheme must be http, https, unix, or unixs: redacted #9173
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Description
In the process of updating etcd cluster to use certificates, https etc:
- Deployed (peer-)trusted-ca-file, (peer-)cert-file and (peer-)key-file to each machine with appropriate certs.
- One by one did
# etcdctl member update b8b607c8533bf21f --peer-urls=https://redactedand then restarted corresponding node with https in ETCD_LISTEN_PEER_URLS, ETCD_LISTEN_CLIENT_URLS and ETCD_ADVERTISE_CLIENT_URLS.
Process was going fine, until I accidentally forgot to include the https:// in the etcdctl member update command. All nodes are now in a panic restart loop with:
panic: newURLs [redacted] should never fail: URL scheme must be http, https, unix, or unixs: redacted
goroutine 115 [running]:
panic(0xd460a0, 0xc820f3f500)
/usr/local/go/src/runtime/panic.go:481 +0x3e6
github.com/coreos/etcd/cmd/vendor/github.com/coreos/pkg/capnslog.(*PackageLogger).Panicf(0xc8201113c0, 0x1232b20, 0x22, 0xc82059b508, 0x2, 0x2)
/home/gyuho/go/src/github.com/coreos/etcd/cmd/vendor/github.com/coreos/pkg/capnslog/pkg_logger.go:75 +0x191
github.com/coreos/etcd/cmd/vendor/github.com/coreos/etcd/rafthttp.(*Transport).UpdatePeer(0xc82015e240, 0xb8b607c8533bf21f, 0xc8202ad200, 0x1, 0x4)
/home/gyuho/go/src/github.com/coreos/etcd/cmd/vendor/github.com/coreos/etcd/rafthttp/transport.go:288 +0x2d0
github.com/coreos/etcd/cmd/vendor/github.com/coreos/etcd/etcdserver.(*EtcdServer).applyConfChange(0xc820188b40, 0x5791610eb29ce902, 0x2, 0xb8b607c8533bf21f, 0xc82019fd40, 0x5a, 0x60, 0x0, 0x0, 0x0, ...)
/home/gyuho/go/src/github.com/coreos/etcd/cmd/vendor/github.com/coreos/etcd/etcdserver/server.go:1150 +0x725
github.com/coreos/etcd/cmd/vendor/github.com/coreos/etcd/etcdserver.(*EtcdServer).apply(0xc820188b40, 0xc820428048, 0xc6d, 0xc70, 0xc820282e80, 0x0, 0x0)
/home/gyuho/go/src/github.com/coreos/etcd/cmd/vendor/github.com/coreos/etcd/etcdserver/server.go:1036 +0x22c
github.com/coreos/etcd/cmd/vendor/github.com/coreos/etcd/etcdserver.(*EtcdServer).applyEntries(0xc820188b40, 0xc820282e80, 0xc820076420)
/home/gyuho/go/src/github.com/coreos/etcd/cmd/vendor/github.com/coreos/etcd/etcdserver/server.go:756 +0x2bd
github.com/coreos/etcd/cmd/vendor/github.com/coreos/etcd/etcdserver.(*EtcdServer).applyAll(0xc820188b40, 0xc820282e80, 0xc820076420)
/home/gyuho/go/src/github.com/coreos/etcd/cmd/vendor/github.com/coreos/etcd/etcdserver/server.go:617 +0xb4
github.com/coreos/etcd/cmd/vendor/github.com/coreos/etcd/etcdserver.(*EtcdServer).run.func2(0x7f070bdcba88, 0xc820282d80)
/home/gyuho/go/src/github.com/coreos/etcd/cmd/vendor/github.com/coreos/etcd/etcdserver/server.go:596 +0x32
github.com/coreos/etcd/cmd/vendor/github.com/coreos/etcd/pkg/schedule.(*fifo).run(0xc82019f440)
/home/gyuho/go/src/github.com/coreos/etcd/cmd/vendor/github.com/coreos/etcd/pkg/schedule/schedule.go:160 +0x323
created by github.com/coreos/etcd/cmd/vendor/github.com/coreos/etcd/pkg/schedule.NewFIFOScheduler
/home/gyuho/go/src/github.com/coreos/etcd/cmd/vendor/github.com/coreos/etcd/pkg/schedule/schedule.go:71 +0x27d
Its an old etcd version, 3.0.17.
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