|
40m
QIL
Cryo_Lab
CTN
SUS_Lab
CAML
OMC_Lab
CRIME_Lab
FEA
ENG_Labs
OptContFac
Mariner
WBEEShop
|
| 40m Log |
Not logged in |
 |
|
|
 Thu Sep 18 01:14:23 2008, rob, Summary, Computers, EPICS BAD
|
 Thu Sep 18 12:16:01 2008, Yoichi, Update, Computers, EPICS BACK
| |
Thu Sep 18 13:05:05 2008, Yoichi, Update, Computers, EPICS BACK
|
|
|
Message ID: 963
Entry time: Thu Sep 18 12:16:01 2008
In reply to: 961
Reply to this: 964
|
| Author: |
Yoichi |
| Type: |
Update |
| Category: |
Computers |
| Subject: |
EPICS BACK |
|
|
| Quote: |
Somehow the EPICS system got hosed tonight. We're pretty much dead in the water till we can get it sorted.
|
The problem was caused by the installation of a DNS server into linux1 by Joe.
Joe removed /etc/hosts file after running the DNS server (bind). This somehow prevented proper boot of
frontend computers.
Joe and I confirmed that putting back /etc/hosts file resolved the problem.
Right now, the DNS server is also running on linux1.
We are not sure why /etc/hosts file is still necessary. My guess is that the NFS server somehow reads /etc/hosts
when he decides which computer to allow mounting. We will check this later.
Anyway, now the computers are mostly running fine. The X-arm locks.
The Y-arm doesn't, because one of the digital filters for the Y-arm lock fails to be loaded to the frontend.
I'm working on it now. |