mongo db 上的自动化脚本给出二进制错误

Question

正在尝试运行 mongo db 上的脚本来检查 utlization 出现错误：无法执行二进制文件，任何建议。

[bp09@zlv172 ~]$ sh disk.sh 
./kubectl config use-context agef

./kubectl exec -it mongoagef-2 -c mongo bash  -- df -h

/usr/bin/df: /usr/bin/df: cannot execute binary file
command terminated with exit code 126

尝试时：

./kubectl exec -it mongoagef-2 -c mongo bash -- file /usr/bin/df

bash：文件：没有这样的文件或目录命令以退出代码 127 终止

./kubectl config use-context agef

./kubectl exec -it mongoagef-2 -c mongo bash  -- df -h

/usr/bin/df: /usr/bin/df: cannot execute binary file
command terminated with exit code 126



[bp09@zlv172 ~]$ ./kubectl config use-context agef
Switched to context "agef".

[bp09@zlv172 ~]$  ./kubectl get pods
NAME              READY     STATUS    RESTARTS   AGE
mongoagef-0   2/2       Running   0          20d
mongoagef-1   2/2       Running   0          24d
mongoagef-2   2/2       Running   0          20d


[bp09@zlv172 ~]$  ./kubectl exec -it mongoagef-2 -c mongo bash
bash-4.2$ df -h /data/db
Filesystem                         Size  Used Avail Use% Mounted on
/de/map/data_vg-shared_vol2  3.5T  1.8T  501G  75% /data/db

但是当运行时：-

[bp09@zlv172 ~]$  ./kubectl exec -it mongoagef-2 -c mongo bash -- df -h
/usr/bin/df: /usr/bin/df: cannot execute binary file
command terminated with exit code 126


[bp09@zlv172 ~]$  ./kubectl exec -it mongoagef-2 -c mongo bash -- file /usr/bin/df -h
bash: file: No such file or directory
command terminated with exit code 127


[bp09@zlv172 ~]$  ./kubectl exec -it mongoagef-2 -c mongo bash -- file /bin/df -h
bash: file: No such file or directory
command terminated with exit code 127

当使用以下 locate df 命令检查时，输出是：- [bp09@zlv172 ~]$ 定位 df

/bin/df


[bp09@zlv172 ~]$  ./kubectl exec -it mongoagef-2 -c mongo bash

bash-4.2$ cd /usr/bin bash-4.2$ ls -lrth|grep -i df

-rwxr-xr-x 1 root root  99K Oct 30  2018 df

Answer 1

k exec -it mongo -c mongo -- /bin/sh -c df 这个工作正常。

Answer 2

正如您提到的那样，当您登录到容器和运行命令时，df 命令有效，但在运行使用 exec 时无效。或者你调用 shell 然后调用你需要的命令。例如：

kubectl exec -it mongo -c mongo -- /bin/sh  -c df

-c If the -c option is present, then commands are read from the first non-option argument command_string. If there are arguments after the com‐ mand_string, the first argument is assigned to [=13=] and any remaining arguments are assigned to the positional parameters. The assignment to [=13=] sets the name of the shell, which is used in warning and error messages.

mongo db 上的自动化脚本给出二进制错误

automation script on mongo db giving binary error

mongodb

mongodb-query

kubernetes

kubectl

kubernetes-helm