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|
| Author |
Message |
| 25 new of 283 responses total. |
drew
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response 50 of 283:
| 
Oct 11 02:36 UTC 1997 |
Why is it necessary to have 30 sendmail processes, let alone 200(!) to send
out the mail? Can't a single process be made to handle this task?
|
i
|
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response 51 of 283:
|
Oct 11 13:22 UTC 1997 |
The process isn't very bright or energetic, so plenty of 'em are needed
to properly staff the post office. 200 is way too many, though, and
problems result.
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janc
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response 52 of 283:
|
Oct 11 22:51 UTC 1997 |
I don't really know much about sendmail. But I think that to send a piece
of mail, you open a connection to the destination machine, and start a
conversation. You spend a significant amount of the time waiting for the
other machine to respond, and doing nothing. So there is no real problem
doing many at the same time. If you only did one at a time you'd accumulate
a huge backlog, but if you got them all delivered, you'd still have done just
as much total work as if you tried to do them all at once. So I don't think
having too many sendmail processes running is the problem. The problem is
that we have too much mail to send.
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tsty
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response 53 of 283:
|
Oct 12 02:27 UTC 1997 |
<<maybe too many of those win95 encapsulated thingies?>>
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arthurp
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response 54 of 283:
|
Oct 12 04:55 UTC 1997 |
I think maybe the problem with 200 sendmails is all that stuff they each take
a chunk of while sitting there. Check vmstat. Swapping is a real performance
drag.
When I logged in tonight, I got a usage error message from fortune. Huh?
|
srw
|
|
response 55 of 283:
|
Oct 12 05:37 UTC 1997 |
Backtalk users will notice a new problem. The buttons are not loading.
The graphics come from the HVCN server, and it has gone down.
Sorry about that, but since we do not have 24 hour access to it, we
will have to wait until monday (or possibly tuesday) to get it rebooted.
|
orinoco
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response 56 of 283:
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Oct 12 20:16 UTC 1997 |
Yet Another Clueless Question:
What is it about the HVCN server that lets them carry images when we can't.
I was under the impression that they were kinda' vaguely similar to grex...
|
danr
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response 57 of 283:
|
Oct 12 22:16 UTC 1997 |
Au contraire. The only thing the HVCN server is currently doing is ser-
ving web pages for a number of non-profits here in Washtenaw County. It
doesn't have any dial-ins, nor does it have individual accounts. The
result is that it's much less busy than Grex is.
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dpc
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response 58 of 283:
|
Oct 12 23:35 UTC 1997 |
HVCN also had a bunch of Web-based conferences a while ago. Have
they removed them?
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valerie
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response 59 of 283:
|
Oct 13 02:46 UTC 1997 |
This response has been erased.
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scg
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response 60 of 283:
|
Oct 13 03:25 UTC 1997 |
The HVCN server has much better network connectivity than Grex does. Grex
is sitting on a very overloaded 28,800 modem, while HVCN is on Washtenaw
County's ethernet. There's no technical reason making it impossible for Grex
to have graphics, but with a net link like Grex's, as overloaded as Grex's,
we don't have bandwidth to spare, and graphics take up a lot of bandwidth.
That is a problem HVCN does not have.
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laz
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response 61 of 283:
|
Oct 13 07:08 UTC 1997 |
While many vendors are happy withoffering you character based
emulation,alternatives like graphic emulators using X hich reduces one
snvestments
|
valerie
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response 62 of 283:
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Oct 13 15:27 UTC 1997 |
This response has been erased.
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e4808mc
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response 63 of 283:
|
Oct 13 18:24 UTC 1997 |
Just what is the computer doing when you "resynch the password files"?
|
other
|
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response 64 of 283:
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Oct 13 19:59 UTC 1997 |
yeah, what does that mean?
comparing two files to make sure they have the same content?
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valerie
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response 65 of 283:
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Oct 13 20:12 UTC 1997 |
This response has been erased.
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srw
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response 66 of 283:
|
Oct 14 18:39 UTC 1997 |
HVCN is now back up. It had lost power, and had not recovered
automatically. Unfortunately, I had to wait until Tuesday morning before
I get in to reboot it. That is because it lives in the offices of the
Washtenaw County IS department, and their offices were closed Monday for
Columbus Day.
This should restore the missing graphics on Grex's website, Backtalk
buttons, grexwalk and dungeon tour sites.
The answers others gave about HVCN are all correct. I should point out
that HVCN does have *conferencing* accounts. These are freely available
via the web, but they are not unix shell accounts. they are a Backtalk
construct that permits you to use the Backtalk system to authenticate.
On Grex, Backtalk authenticates using real unix accounts, but on HVCN,
it does not. The difference is in the way Backtalk is configured there.
The main difference though, is the connectivity. HVCN has far better
connectivity than Grex, but if we allowed HVCN's machine to be used the
way Grex is used, we would not be permitted to locate it there.
The HVCN computer itself is comparable in performance to the old sun-3.
It is actually an old Mac-IIci (no kidding), running NetBSD instead of
Mac-OS, on 8 MB Ram. So, it is much slower than Grex in absolute terms.
However, its load is a good match for its capablities, and it handles
its jobs fairly well.
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orinoco
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response 67 of 283:
|
Oct 14 21:40 UTC 1997 |
IIci?!
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richard
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response 68 of 283:
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Oct 14 22:43 UTC 1997 |
I hate it when Ive been away for four days and find there were four
unsuccesful login attempts at my login on Saturday. Why would someone
want to hack my login...I dont have any interesting files! *arg*
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srw
|
|
response 69 of 283:
|
Oct 15 19:06 UTC 1997 |
Perhaps someone forgot what their account name is. It is not unheard of
for people try several times to get in with the wrong ID before
realizing that their ID was a little different.
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davel
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response 70 of 283:
|
Oct 15 21:01 UTC 1997 |
Possibly someone named Richard who uses that on other systems...
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valerie
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response 71 of 283:
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Oct 15 21:05 UTC 1997 |
This response has been erased.
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rcurl
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response 72 of 283:
|
Oct 17 06:42 UTC 1997 |
System groggy and was down for long periods - what's up? Also, when trying
to send mail in pine, screen showed real gibberish (when dialed in). Weird
stuff happening...
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janc
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response 73 of 283:
|
Oct 17 15:53 UTC 1997 |
Grex has been crashing regularly. We don't know why. Reboot times vary,
depending on how long it takes a staff person to get there, and how
reluctant it is to come back up. It doesn't seem to be crashing in one very
consistant manner, but seems to be doing all sorts of odd things.
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krj
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response 74 of 283:
|
Oct 18 03:12 UTC 1997 |
I just dialed 761-5041, it rang open, I telnetted over.
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