Bug #103621 Cannot Start MySQL management and data nodes

• Submitted: 7 May 2021 9:33
• Modified: 7 May 2021 12:08
• Reporter: Davood Falahati
• Status: Verified
• Category: MySQL Cluster: Cluster (NDB) storage engine
• Severity: S3 (Non-critical)
• Version: 7.5
• OS: Debian (Ubuntu 20.04)
• CPU Architecture: x86
• Tags: docker, ndb_mgmd, ndbd

[7 May 2021 9:33] Davood Falahati

Description:
I follow the instructions in https://hub.docker.com/r/mysql/mysql-cluster/ and I had successfully done so. In my recent try, I noticed my containers exit right after start.

This is the error log I receive from my server with Ubuntu 20.04 installed:

[Entrypoint] MySQL Docker Image 8.0.24-1.2.2-cluster
[Entrypoint] Starting ndb_mgmd
Failed to open /sys/devices/system/cpu/cpu0/cache/index3/shared_cpu_list: No such file or directory
ndb_mgmd: [ERROR] unknown variable 'user='.
MySQL Cluster Management Server mysql-8.0.24 ndb-8.0.24

On another machine with Ubuntu 18.04 installed I receive a similar error:

[Entrypoint] MySQL Docker Image 7.5.22-1.2.2-cluster
[Entrypoint] Starting ndb_mgmd
MySQL Cluster Management Server mysql-5.7.34 ndb-7.5.22
ndb_mgmd: [ERROR] unknown variable 'user=mysql'

How to repeat:
To replicate the error, make sure there are no local mysql images on your local registry.

Make a docker network:

docker network create cluster --subnet=192.168.0.0/16

docker run -d --net=cluster --name=management1 --ip=192.168.0.2 mysql/mysql-cluster ndb_mgmd

docker logs managemnet1

[7 May 2021 10:27] Juan Fra Martínez

Same problem with Ubuntu 20.04.2 LTS x86_64

[7 May 2021 12:08] MySQL Verification Team

Hi,

I doubt this has anything to do with host OS.

Verified on CentOS7

[root@centos7BIG ~]# docker network create cluster --subnet=10.0.0.0/16
314f9407fa6e81aec82cc8212fc574f3043f5423acf5200ed57078562de4aed7
[root@centos7BIG ~]# docker run -d --net=cluster --name=management1 --ip=10.0.0.2 mysql/mysql-cluster ndb_mgmd
Unable to find image 'mysql/mysql-cluster:latest' locally
latest: Pulling from mysql/mysql-cluster
ee9d4d67fb68: Pull complete
1b7d7162ff8c: Pull complete
fdefefbeba5b: Pull complete
760747422912: Pull complete
053fd7e9ad4e: Pull complete
8e1ae64b7b63: Pull complete
cddec88d4d9c: Pull complete
5235335dd49b: Pull complete
40ee0037ee48: Pull complete
Digest: sha256:39328716fae2379af7b1713e9f473301fd2776764ef28664d60870ce99031a42
Status: Downloaded newer image for mysql/mysql-cluster:latest
ac4f7a23aecde5cebda8936ff73f519f2e5cefd3c08057fcfed32e82b3593e16
[root@centos7BIG ~]# docker logs managemnet1
Error: No such container: managemnet1
[root@centos7BIG ~]# docker logs management1
[Entrypoint] MySQL Docker Image 8.0.24-1.2.2-cluster
[Entrypoint] Starting ndb_mgmd
MySQL Cluster Management Server mysql-8.0.24 ndb-8.0.24
ndb_mgmd: [ERROR] unknown variable 'user='.
[root@centos7BIG ~]#

Thanks for the report
Bogdan