vSphere 8 Update fails: Error in method invocation Timout happens while sending message to microservice

This error occurs due to an outdated PID file of the update microservice or an error during staging of corrupted media. Strangely enough, I requested the update via the VAMI interface (port 5480), so it may have been corrupted during download.

As always, there is a solution, and this time there are even three. The first solution is to restart vCenter, but this did not work for me. The second solution is to delete update_microservice.pid file. To do this, log in to vCenter via SSH:

# Check if the update_microservice.pid file is available

ls /var/run/vmware/applmgmt/update_microservice.pid

# If available delete the file

rm /var/run/vmware/applmgmt/update_microservice.pid

Then simply try patching again. But this method didn’t work for me either, as I didn’t have a .pid file. This brings us to the final solution, which involves the idea of a corrupt image, because I also get the error message:

[Errno2] No such file or directory: '/storage/seat/software-update*/stage/update/patching_backup_config.json'

This third solution requires a new blog post, so stay tuned, if you have any questions, please use the comment section below. 🙂