How do I collect kdump information after an instance experiences an operating system failure? -

Collect and submit kdump files from a crashed ECS instance so Alibaba Cloud technical support can diagnose the root cause.

Background

Alibaba Cloud technical support analyzes the submitted kdump information to identify the root cause and notifies you of the results.

Note

You can also analyze kdump files yourself with WinDbg for Windows or crash for Linux.

Connect to the Linux instance.

See Log on to a Linux instance using Workbench.
Collect kdump information:
```
sudo acs-plugin-manager --exec --plugin=ecs_dump_collector --params="-c"
```
Output similar to the following indicates that kdump information is collected.

Connect to the Windows instance.

See Connect to a Windows instance by using Workbench.
Open Command Prompt.
Go to the assist directory:
```
cd C:\ProgramData\aliyun\assist
```
List files in the assist directory:
```
dir
```
Go to the latest version directory, for example 2.1.3.282:
```
cd 2.1.3.282
```
Collect kdump information:
```
acs-plugin-manager.exe --exec --plugin=ecs_dump_collector_win --params="-c"
```
Output similar to the following indicates that kdump information is collected.

If the following error appears when you collect kdump information, the dump service is not enabled. Error message

Solution:

Enable the dump service:

Linux:

sudo acs-plugin-manager --exec --plugin ecs_dump_config --params --enable

Windows:

acs-plugin-manager.exe -e -P ecs_dump_config_win -p "--enable"