Since the trouble shooting has been written for a while after a while, there are no relevant screenshots this time
One day, the rabbitmq running normally hung up, and then an error was reported when it went to restart. It could not start. Check the error information by checking systemctl status rabbitmq -l and journalctl -u rabbitmq, and found that there is no valuable information.
Then I tried to remove the files in the / var / lib / rabbitmq / mnesia / directory, and then restarted. It was found that the same startup error was reported and there was no reference information.
Next, check the configuration file again, and confirm that the configuration file is not written incorrectly. The key is to check whether there is a format punctuation error, or it has been modified by someone.
After the inspection and the other machines in the cluster are also compared, there is no problem.
Finally, try to use rabbitmq-server directly to start directly. I want to see what error message will be output at the front desk for reference.
After running the startup program, directly output a no space related information. Then df -h took a look and found that there is indeed no space, but there is just a little space left, so when running the command, it can still complete the normal tab completion, causing the problem of not thinking of space at first