unsupported architecture "arm64" since ETCD_UNSUPPORTED_ARCH is set

[gititk]

Hi
I'm trying to install devstack on arm64. while doing so I got:

etcdmain: running etcd on unsupported architecture "arm64" since ETCD_UNSUPPORTED_ARCH is set
2018-01-02 09:58:39.132476 W | pkg/flags: unrecognized environment variable ETCD_UNSUPPORTED_ARCH=arm64
2018-01-02 09:58:39.132516 I | etcdmain: etcd Version: 3.2.9
2018-01-02 09:58:39.132527 I | etcdmain: Git SHA: f1d7dd8
2018-01-02 09:58:39.132536 I | etcdmain: Go Version: go1.8.4
2018-01-02 09:58:39.132544 I | etcdmain: Go OS/Arch: linux/arm64

How can I solve it?
Thanks
Gitit

[hexfusion]

@gititk this is a known issue. Duplicates, #5054.

Not sure where this fork stands. https://github.com/glevand/coreos--etcd

[hexfusion]

Hmm but we do provide arm64 release binaries. IE https://github.com/coreos/etcd/releases/tag/v3.2.12. That is confusing. I guess can you confirm that this is a 64bit arm system? I believe Raspberry Pi are still 32bit.

/cc @xiang90

[gititk]

Thanks. my server is 64bit arm.
Ill try 3.2.12

[gyuho]

@gititk If you run with arm, this is an expected warning.

https://github.com/coreos/etcd/blob/master/Documentation/op-guide/supported-platform.md#32-bit-and-other-unsupported-systems

To avoid inadvertently running a possibly unstable etcd server, etcd on unstable or unsupported architectures will print a warning message and immediately exit if the environment variable ETCD_UNSUPPORTED_ARCH is not set to the target architecture.

[xiang90]

@gyuho

unrecognized environment variable ETCD_UNSUPPORTED_ARCH=arm64

why this line showed up?

[gyuho]

@xiang90 We only support ETCD_UNSUPPORTED_ARCH through environment variable (no such flag as --unsupported-arch), so it warns at flags.SetFlagsFromEnv.

[xiang90]

the logging is pretty confusing. we probably should get it fixed.

[gyuho]

yeah, how about just adding --unsupported-arch flag, or say the flag doesn't exist?

unrecognized environment variable ETCD_UNSUPPORTED_ARCH=arm64 (or no flag "unsupported-arch" found)

[hexfusion]

why do we ship unsupported binaries? that in itself is confusing.

[gititk]

Hi
I get this error with 3.2.12
tar xzvf /opt/stack/devstack/files/etcd-v3.2.12-linux-arm64.tar.gz -C /opt/stack/devstack/files
2018-01-03 12:40:59.693 |
2018-01-03 12:40:59.693 | gzip: stdin: not in gzip format
2018-01-03 12:40:59.693 | tar: Child returned status 1
2018-01-03 12:40:59.694 | tar: Error is not recoverable: exiting now

[hexfusion]

Hi @gititk sounds like a bad download I can not reproduce. As @xiang90 noted the message you reported is expected so the version will not change that.

wget https://github.com/coreos/etcd/releases/download/v3.2.12/etcd-v3.2.12-linux-arm64.tar.gz
mkdir test
tar -xzvf etcd-v3.2.12-linux-arm64.tar.gz -C test/
[..]
etcd-v3.2.12-linux-arm64/etcd

[glevand]

@hexfusion arm64 etcd binaries are published to fulfill the user request for them, and also to allow the rkt test suite to complete without failure on arm64 machines. See #8085 (v3.2.0-arm64 release).

[hexfusion]

@glevand, could rkt build the binaries during testing? Issue is when a binary is released and we get a request like the above it is confusing. Technically this is unsupported yet we offer it pre-built in the release. Maybe if the name of the binary included unsupported or some other direct indication? How far off is arm64 from being supported?

[glevand]

@hexfusion See: https://github.com/coreos/etcd/blob/master/Documentation/op-guide/supported-platform.md

[Doorer]

I export ETCD_UNSUPPORTED_ARCH=mips64le set. on/etc/profile
still running error:

2020-01-09 17:03:30.370991 E | etcdmain: etcd on unsupported platform without ETCD_UNSUPPORTED_ARCH=mips64le set.

@duchuanLX
Check the os.LookupEnv("ETCD_UNSUPPORTED_ARCH") return or run export |grep "ETCD_UNSUPPORTED_ARCH " in bash
It works for me

[sri-vathsa]

Hey! I am trying to start the etcd daemon using the command sudo systemctl start etcd.service and then I ran the command journalctl -xe. It says I should set ETCD_UNSUPPORTED_ARCH to arm64. I set the environment variable as said and am still receiving the same error. Am I doing something wrong? Can someone help me out? Thanks :D

[leo-frank]

Hey! I am trying to start the etcd daemon using the command sudo systemctl start etcd.service and then I ran the command journalctl -xe. It says I should set ETCD_UNSUPPORTED_ARCH to arm64. I set the environment variable as said and am still receiving the same error. Am I doing something wrong? Can someone help me out? Thanks :D

You simply need to add one line to /etc/default/etcd: ETCD_UNSUPPORTED_ARCH=arm64 and then run sudo systemctl enable etcd && sudo systemctl restart etcd.

[Clivern]

you need to remove the check from the main Clivern@1665224

then

$ go get ./...
$ GOOS=linux GOARM=7 GOARCH=arm ARCH=arm GO_BUILD_FLAGS='-v -mod=readonly' ./build.sh

binaries will work on raspberry pi