[system failure report] June.11 2019 login0 network failure


A network failure happened as follows and it had been recovered.


1. summary

Network failure between campus network and login0 occurred.

2. period

June 11 2019 around 14:10 - 17:00

3. detail

From around June 11 2019 14:10, a trouble that login node(login0) was not accessible from the internet happened.

It had been recovered by restarting login0 at 18:49.

The discovery of the problem was delayed since login0 was accessible from TSUBAME internal, so we will improve the monitoring method so that we discover the problem and recover the problem quickly.