Hello all,
We had a very strange incident yesterday (Sunday 22nd February 2015 around 11.20AM GMT) with multiple Serv-U servers.
Our alerting systems started telling us that FTP and the HTTP/HTTPS web interface on multiple servers was inaccessible. Logged straight on to find that indeed they had all locked up. Further investigation showed that all servers had serv-u.exe running at around 1000MB of RAM. My long experience with Serv-U tells me that it has crashed and is in some kind of loop or has a memory leak.
I've sene this happen before and the service needs to be restarted manually, however this happened over 5 servers, all around the same time. 3 straight away, 1 shortly after (30 mins or so) and then we pre-empted another and restarted the process quickly.
3 of the servers have network storage, two have local, so it seems unlikley that it was related to that. The versions also vary, so if it is a bug, it is even in the latest build.
Im intrigued to know if anyone else had such an issue yesterday, or has had it in the past? I know various memory leaks have been fixed on Serv-U in the past but this seems to be a much rarer but severe issue.
Server, switch and storage logs didnt show up anything around that time that could have distrupted Serv-U, so it looks to be a direct issue with the program. I am however, open to any suggestions, of course.
Any help or insight appreciated!