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Grex > Helpers > #142: Grex System Problems - Summer 2005 | |
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| Author |
Message |
| 25 new of 281 responses total. |
keesan
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response 165 of 281:
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Aug 5 03:40 UTC 2005 |
I got three of those things today. Perhaps we could set a limit on the number
of mails sent per day per user?
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mynxcat
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response 166 of 281:
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Aug 5 04:50 UTC 2005 |
i got the same emails
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jadecat
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response 167 of 281:
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Aug 5 12:09 UTC 2005 |
Me too.
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nharmon
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response 168 of 281:
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Aug 5 12:38 UTC 2005 |
The e-mails you got were generated by a script that some user had in his/her
homedir. The permissions were set to execute only (no read). Once we found
out what it was doing, we stopped the process and reported it to Remmers, who
locked the account, and locked the script.
Anyway, triludaa has been working on some programming projects. Unless he is
interfering with other people's use of Grex, why should he be locked?
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naftee
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response 169 of 281:
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Aug 5 12:40 UTC 2005 |
poor triludaa ;(
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remmers
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response 170 of 281:
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Aug 5 13:53 UTC 2005 |
Re #168, last paragraph: Indeed. The test for whether one is abusing
resources on a shared system like this is whether others are prevented
from doing what they want to do, or are slowed down unreasonably in
doing what they want to do. I've noticed neither. The system's always
been quick and responsive whenever I've been on it recently.
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keesan
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response 171 of 281:
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Aug 5 15:16 UTC 2005 |
I found the system to be extremely sluggish when the load average was 5.
I would type a sentence and wait 30 - 60 sec for it to appear.
Perhaps this was due to my ISP being slow?
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jadecat
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response 172 of 281:
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Aug 5 15:29 UTC 2005 |
I was just saying that I got the mail- nothing else intended.
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mcnally
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response 173 of 281:
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Aug 5 16:10 UTC 2005 |
I was logged on during much of the period that Sindi was complaining
about (as shown by my responses interleaved with her complaints) and
found the system responsiveness to be pretty normal during that time.
I did have a talk with triludaa about the CPU usage. He said he was
running a program he'd written and was unaware that it was taking up
so much CPU time. When I made him aware of the issue he killed the
program and agreed that he should redesign it. Only future behavior
can truly demonstrate whether he was sincere or not but I believed
that he was not intentionally harming the system (it's easy enough to
do that, frankly, if that's really your intention) and I don't think
it's wise to automatically assume malice from a user just because they
don't fit into the usual pattern of picospan/party/email use.
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keesan
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response 174 of 281:
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Aug 5 17:49 UTC 2005 |
When I was trying to compile something at grex I would be careful to run the
compiler when few other people were online, such as Sunday mornings or the
middle of the night.
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remmers
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response 175 of 281:
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Aug 5 18:22 UTC 2005 |
On the Sun that Grex used to run on, that was helpful. Now that we're
on much more modern and higher-performance hardware, compilations have
much less impact on other users.
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cross
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response 176 of 281:
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Aug 5 21:05 UTC 2005 |
This response has been erased.
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naftee
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response 177 of 281:
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Aug 6 01:53 UTC 2005 |
re 170 Is that similar to the Ratio Test ?
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nharmon
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response 178 of 281:
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Aug 6 20:25 UTC 2005 |
Seems to be a problem with the password file being locked. Nobody can change
their password.
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jason
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response 179 of 281:
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Aug 8 11:24 UTC 2005 |
Today I was bombarded with telegrams from triludaa with text spanning three
to four pages.He has written some program to take input from flat files and
telegram user in a loop.He later sent me about 40 spam emails with no from
address or subject using grex smtp.He is really a pain in the ass.
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naftee
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response 180 of 281:
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Aug 8 14:18 UTC 2005 |
He didn't need to write a programme.
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keesan
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response 181 of 281:
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Aug 8 15:16 UTC 2005 |
Perhaps we could harness his unused energy by asking him to write some useful
program for grex instead?
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albaugh
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response 182 of 281:
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Aug 8 18:00 UTC 2005 |
Hanlon's Razor - Don't attribute to malice something that can be explained by
incompetence.
http://home.kc.rr.com/psychology140/ct-razors.htm
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mynxcat
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response 183 of 281:
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Aug 10 20:39 UTC 2005 |
It seems every afternoon grex freezes up and crashes. And then we can't get
back on the system for anywhere from a couple of minutes to 15 minutes. Is
there some kind of maintenace going on at that time? Is this supposed to be
normal. Today the crash was around 4:30 pm.
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tod
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response 184 of 281:
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Aug 10 20:51 UTC 2005 |
1:30pm PST
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gelinas
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response 185 of 281:
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Aug 12 01:30 UTC 2005 |
Thu Aug 11 21:28:01 EDT 2005: Grex was hosed, for lack of a better word.
I called provide.net, who power-cycled the machine. We are back now.
(I'm guessing fsck got hung on an unwatched reboot.)
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naftee
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response 186 of 281:
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Aug 12 02:04 UTC 2005 |
THANKS, joe
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nharmon
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response 187 of 281:
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Aug 12 02:22 UTC 2005 |
Thanks Joe.
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aruba
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response 188 of 281:
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Aug 12 05:39 UTC 2005 |
Thanks Joe!
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marcvh
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response 189 of 281:
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Aug 12 05:55 UTC 2005 |
Good to see it back. I'm able to telnet in, but ssh isn't connecting.
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