Application: Ghost Detector - find out how big your Ghost Army is


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Profile jason_gee
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Message 1036146 - Posted: 25 Sep 2010, 16:20:50 UTC - in response to Message 1036128.
Last modified: 25 Sep 2010, 16:28:41 UTC

Hi Mark,

I beg to differ in part. While I too hope for a [complete] solution to the ghost problems, I can appreciate the poking around going on here.

As some will attest, poking around with things that have little apparent immediate application beyond the obvious is what I do. Some things turn out to be little more than a curiosity, while others later get used as part of some bigger plan.

An example from my end includes that my initial playing with Lunatics 2.2 code years ago, with no intention for further development, ended up with the first consistently validating AKv8 Windows ports (with a huge amount of support from others). Another is that the installer development followed playing around with CPU identification code, which already existed, but I needed more specific information for future reasons... and is yet to be included in installer development (but will be one day).

I believe it's difficult to predict the possible future usefulness (or lack of) for something, and if only for a learning exercise it is still valuable for that in its own right.

There *could be* a means to induce an aborted by user task status, or possibly other marking, iff we know there were ghosts, what the task was called, and can figure out enough detail to bodgey up the client state. I'm not sure if, or how, such a feat might be practical, but my guess is knowing there are ghosts, and their task details might be a reasonable first step.

Jason
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Message 1036154 - Posted: 25 Sep 2010, 16:35:42 UTC

GOOD kitty!
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Message 1036155 - Posted: 25 Sep 2010, 16:36:16 UTC

wel im hpy with this prog,
its nice to see how many ghost i got and wich pcs i need to detach to fix some problems with them not getting enough work.
was alrdy planning to do 1 as it idle for more then 2 days alrdy and now i see why

pc 1 - 1062 in progres - 267 on pc - 795 ghosts
pc 2 - 1278 - 1036 - 242
pc 3 - 443 - 346 - 97
pc 4 - 451 - 236 - 215
pc 5 - 115 - 84 - 31

thats alot of ghost on some,


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Message 1036163 - Posted: 25 Sep 2010, 16:49:03 UTC - in response to Message 1036155.

Well, it's nice to know my efforts have paid off. I'm only showing one ghost on my rig. Now, if there were only some way to find the ghosts on my wingmen's machines and get them done. I've got some that have been sitting for months, going from one timeout to another.
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Message 1036168 - Posted: 25 Sep 2010, 16:53:32 UTC
Last modified: 25 Sep 2010, 16:57:06 UTC

Hmmm,

HostID = 5199251 4,927 WU 'In Progress' 2,671 WU on board ------------------------ 2,256 Ghost Work Units


That's a lot :/ . If things were functioning I'd look at doing a ghostbusters sequence ... Not an option with ~1000 results ready to report though (plus a lot waiting to upload).

Jason
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Message 1036172 - Posted: 25 Sep 2010, 16:59:25 UTC - in response to Message 1036170.
Last modified: 25 Sep 2010, 17:01:18 UTC

LOL......they will haunt you forever.......You had to open up the freakin' door, didn't you.


I really hope the figures aren't representative of the status quo. Never did like their music. [Also I make that about 660MiB for this one host...]
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Message 1036182 - Posted: 25 Sep 2010, 17:13:28 UTC - in response to Message 1036170.

I thought you meant this door... http://www.youtube.com/watch?v=8MPbwncM40M
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Message 1036188 - Posted: 25 Sep 2010, 17:22:05 UTC - in response to Message 1036185.

Gotta have something to do while we're waiting. Just don't get lost in the Phil Harris ones. They can make you laugh so much you'll cry.
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Message 1036196 - Posted: 25 Sep 2010, 17:38:44 UTC - in response to Message 1036188.
Last modified: 25 Sep 2010, 18:19:31 UTC

What happens when you detach & reattach ?
Does seti assign you a new machine number ?
I realize you need to clear existing wu or loose them
so now with the lack of work would be a good time to do it & loose any Ghosts
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Message 1036271 - Posted: 25 Sep 2010, 20:42:52 UTC - in response to Message 1036120.

-[ snip ]-


Agreed, sorry about that Siran d'Vel'nahr, I was in a rush and chose an annoying host. Later on I did re-upload it to a far better hosting service http://www.mediafire.com/?yyy64lh5953d7.

I've mirrored the 2 files for direct download for the interested :)


Thanks JohnDK much appreciated, you mirroring the files will make it easier for those SETIzens that would like to check it out :)

Greetings,

No problem, Ded1o1, I understand that. I relied on my reserve stash of patience waiting for the download. lol ;) Just thought I would let you know that those with less, little or no patience may not wait around for it.

I have the App installed and it found only 1 ghost. Not sure, yet, what is meant by "ghost unit". My interpretation is that it is a WU that has gone through processing and hasn't figured out yet that it is no longer needed and hangs around pestering users. Is that a fair assessment?

.oO(Will it EVER stop raining here???) :(

Keep on BOINCing...! :)

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Message 1036276 - Posted: 25 Sep 2010, 20:54:35 UTC - in response to Message 1036271.

A ghost unit is one that the server tried to send out to you but it never made it to your computer. The server still thinks it got to you so it will show up on your tasks page but not on your BOINC Manager. They usually come in blocks all sent at the same time.
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Message 1036411 - Posted: 26 Sep 2010, 1:49:46 UTC - in response to Message 1035286.
Last modified: 26 Sep 2010, 2:43:19 UTC



@ ded1o1

1) Add % value for Ghosts e.g.:

HostID = 1234567 300 WU 'In Progress' 200 WU on board ------------------------ 100 Ghost Work Units (33%)


2) Suggestion - put the proper (new) link in your signature:
http://setiathome.berkeley.edu/edit_forum_preferences_form.php

(so people who read only the first post do not use the old link)

e.g.:
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Download GhostDet from this link:
http://www.mediafire.com/?yyy64lh5953d7


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Message 1036416 - Posted: 26 Sep 2010, 2:21:06 UTC - in response to Message 1036179.
Last modified: 26 Sep 2010, 2:35:37 UTC



@ msattler

You are right - this program can't correct the Ghost situation by itself.

But it makes the first step - gives information in easy and fast way.
We (and probably the people in the lab) do not know how much
server HDD space is consumed for months by this Ghost problem.

If the top crunchers like you use this program and report e.g.
"I have ~20000 Ghost tasks assigned to my computers = ~40% of the tasks are Ghosts"
the staff will be informed of how big is the problem
and will be more determined to resolve it shortly.


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Message 1036427 - Posted: 26 Sep 2010, 3:21:24 UTC - in response to Message 1036168.

Hi, Here what I got on just one computer it may be a record, anyone with more Ghost?

HostID = 5171911 5,814 WU 'In Progress' 3,540 WU on board ------------------------ 2,274 Ghost Work Units

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