502 Errors downloading SETI artifacts


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Profile Ralph
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Message 1188144 - Posted: 25 Jan 2012, 0:48:03 UTC

I access the Internet by plugging in a cell phone to my desktop PC. Periodically, my cellco "slows down" my packets to about 10KBytes/sec (when I go over my limited bandwidth)

Even though I can't doanload as quickly, I still expected to be able to use this PC for SETI@home work, since I plug my phone into it from 7PM to 7AM.

I have set up my preference to limit download and upload rates to what I've observed, but workunit downloads keep aborting, as if there was an internal "kill slow downloads" system in place that doesn't check the "limit download speed setting". So I end up with a bunch of aborted tasks, apparently, and SETI@home essentially blacklists me for having a slow connection.

Please tell me what I need to do to correct the situation. Thanks!

Here's a sample of the messages I see.
Tue 24 Jan 2012 09:46:29 AM EST SETI@home Backing off 1 min 0 sec on download of 15oc11ab.19489.2935.12.10.52
Tue 24 Jan 2012 09:50:52 AM EST SETI@home Started download of setiathome_6.03_i686-pc-linux-gnu
Tue 24 Jan 2012 09:50:52 AM EST SETI@home Started download of 15oc11ab.19489.2935.12.10.52
Tue 24 Jan 2012 09:50:53 AM EST SETI@home Temporarily failed download of setiathome_6.03_i686-pc-linux-gnu: can't resolve hostname
Tue 24 Jan 2012 09:50:53 AM EST SETI@home Backing off 1 min 0 sec on download of setiathome_6.03_i686-pc-linux-gnu
Tue 24 Jan 2012 09:50:53 AM EST SETI@home Temporarily failed download of 15oc11ab.19489.2935.12.10.52: can't resolve hostname
Tue 24 Jan 2012 09:50:53 AM EST SETI@home Backing off 1 min 0 sec on download of 15oc11ab.19489.2935.12.10.52
Tue 24 Jan 2012 10:40:08 AM EST SETI@home Started download of setiathome_6.03_i686-pc-linux-gnu
Tue 24 Jan 2012 10:40:08 AM EST SETI@home Started download of 15oc11ab.19489.2935.12.10.52
Tue 24 Jan 2012 10:40:09 AM EST SETI@home Temporarily failed download of setiathome_6.03_i686-pc-linux-gnu: can't resolve hostname
Tue 24 Jan 2012 10:40:09 AM EST SETI@home Backing off 1 min 0 sec on download of setiathome_6.03_i686-pc-linux-gnu
Tue 24 Jan 2012 10:40:09 AM EST SETI@home Temporarily failed download of 15oc11ab.19489.2935.12.10.52: can't resolve hostname
Tue 24 Jan 2012 10:40:09 AM EST SETI@home Backing off 1 min 0 sec on download of 15oc11ab.19489.2935.12.10.52
Tue 24 Jan 2012 12:02:31 PM EST SETI@home Started download of setiathome_6.03_i686-pc-linux-gnu
Tue 24 Jan 2012 12:02:31 PM EST SETI@home Started download of 15oc11ab.19489.2935.12.10.52
Tue 24 Jan 2012 12:02:32 PM EST SETI@home Temporarily failed download of setiathome_6.03_i686-pc-linux-gnu: can't resolve hostname
Tue 24 Jan 2012 12:02:32 PM EST SETI@home Backing off 1 min 0 sec on download of setiathome_6.03_i686-pc-linux-gnu
Tue 24 Jan 2012 12:02:32 PM EST SETI@home Temporarily failed download of 15oc11ab.19489.2935.12.10.52: can't resolve hostname
Tue 24 Jan 2012 12:02:32 PM EST SETI@home Backing off 1 min 0 sec on download of 15oc11ab.19489.2935.12.10.52
Tue 24 Jan 2012 03:02:12 PM EST SETI@home Started download of setiathome_6.03_i686-pc-linux-gnu
Tue 24 Jan 2012 03:02:12 PM EST SETI@home Started download of 15oc11ab.19489.2935.12.10.52


Here's the application details I see as of 7PM today:
SETI@home Enhanced 5.28 x86_64-pc-linux-gnu
Number of tasks completed 3243
Max tasks per day 1
Number of tasks today 0
Consecutive valid tasks 0
Average processing rate 11.994520458182
Average turnaround time 34.57 days
SETI@home Enhanced 6.03 i686-pc-linux-gnu
Number of tasks completed 490
Max tasks per day 1
Number of tasks today 0
Consecutive valid tasks 0
Average processing rate 7.8352645230377
Average turnaround time 37.20 days
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Message 1188145 - Posted: 25 Jan 2012, 0:50:42 UTC - in response to Message 1188144.

Also, I should point out that I'd normally post this to one of the "number crunchers" boards, but since I have 0.05 recent average credit, I can't even post to the normal SETI message boards (I have 900,000 workunits of credit, just not enough of is recent enough to allow me to post - kinda ridiculous)
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Message 1188153 - Posted: 25 Jan 2012, 1:42:22 UTC

This is a good place to post the problem.

The more recent versions of the BOINC client have a setting to limit the amount of data transferred / time period. You get to specify the time period and the amount of data. If you set these correctly, you should be able to prevent yourself from going over the limit.
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Message 1188186 - Posted: 25 Jan 2012, 4:45:52 UTC - in response to Message 1188144.

I access the Internet by plugging in a cell phone to my desktop PC. Periodically, my cellco "slows down" my packets to about 10KBytes/sec (when I go over my limited bandwidth)

Even though I can't doanload as quickly, I still expected to be able to use this PC for SETI@home work, since I plug my phone into it from 7PM to 7AM.

I have set up my preference to limit download and upload rates to what I've observed, but workunit downloads keep aborting, as if there was an internal "kill slow downloads" system in place that doesn't check the "limit download speed setting". So I end up with a bunch of aborted tasks, apparently, and SETI@home essentially blacklists me for having a slow connection.

Please tell me what I need to do to correct the situation. Thanks!

Here's a sample of the messages I see.
Tue 24 Jan 2012 09:46:29 AM EST SETI@home Backing off 1 min 0 sec on download of 15oc11ab.19489.2935.12.10.52
Tue 24 Jan 2012 09:50:52 AM EST SETI@home Started download of setiathome_6.03_i686-pc-linux-gnu
Tue 24 Jan 2012 09:50:52 AM EST SETI@home Started download of 15oc11ab.19489.2935.12.10.52
Tue 24 Jan 2012 09:50:53 AM EST SETI@home Temporarily failed download of setiathome_6.03_i686-pc-linux-gnu: can't resolve hostname
Tue 24 Jan 2012 09:50:53 AM EST SETI@home Backing off 1 min 0 sec on download of setiathome_6.03_i686-pc-linux-gnu
Tue 24 Jan 2012 09:50:53 AM EST SETI@home Temporarily failed download of 15oc11ab.19489.2935.12.10.52: can't resolve hostname
Tue 24 Jan 2012 09:50:53 AM EST SETI@home Backing off 1 min 0 sec on download of 15oc11ab.19489.2935.12.10.52
Tue 24 Jan 2012 10:40:08 AM EST SETI@home Started download of setiathome_6.03_i686-pc-linux-gnu
Tue 24 Jan 2012 10:40:08 AM EST SETI@home Started download of 15oc11ab.19489.2935.12.10.52
Tue 24 Jan 2012 10:40:09 AM EST SETI@home Temporarily failed download of setiathome_6.03_i686-pc-linux-gnu: can't resolve hostname
Tue 24 Jan 2012 10:40:09 AM EST SETI@home Backing off 1 min 0 sec on download of setiathome_6.03_i686-pc-linux-gnu
Tue 24 Jan 2012 10:40:09 AM EST SETI@home Temporarily failed download of 15oc11ab.19489.2935.12.10.52: can't resolve hostname
Tue 24 Jan 2012 10:40:09 AM EST SETI@home Backing off 1 min 0 sec on download of 15oc11ab.19489.2935.12.10.52
Tue 24 Jan 2012 12:02:31 PM EST SETI@home Started download of setiathome_6.03_i686-pc-linux-gnu
Tue 24 Jan 2012 12:02:31 PM EST SETI@home Started download of 15oc11ab.19489.2935.12.10.52
Tue 24 Jan 2012 12:02:32 PM EST SETI@home Temporarily failed download of setiathome_6.03_i686-pc-linux-gnu: can't resolve hostname
Tue 24 Jan 2012 12:02:32 PM EST SETI@home Backing off 1 min 0 sec on download of setiathome_6.03_i686-pc-linux-gnu
Tue 24 Jan 2012 12:02:32 PM EST SETI@home Temporarily failed download of 15oc11ab.19489.2935.12.10.52: can't resolve hostname
Tue 24 Jan 2012 12:02:32 PM EST SETI@home Backing off 1 min 0 sec on download of 15oc11ab.19489.2935.12.10.52
Tue 24 Jan 2012 03:02:12 PM EST SETI@home Started download of setiathome_6.03_i686-pc-linux-gnu
Tue 24 Jan 2012 03:02:12 PM EST SETI@home Started download of 15oc11ab.19489.2935.12.10.52


I'm not a linux user, and haven't ever tried data transfer of this magnitude with a cellphone connection, but the error message "can't resolve hostname" generally occurs when your internet connection is lost. IIRC, the connection can't resolve with a DNS server, hence the error. I also see it occasionally if my router chokes up, and a reset of the router corrects it. So, I'd speculate based on the above log that, at the time, your cell wasn't connecting to the internet.

And the downloads aren't "aborting", they're just being delayed and retried. OTOH, if you're manually aborting them, Seti will take note of that and severely restrict the amount of work it will try to send to you. A "dialup" connection might be slower than many here use, but there is no "penalty" per se for slower download speeds.
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Message 1188236 - Posted: 25 Jan 2012, 8:45:21 UTC - in response to Message 1188186.
Last modified: 25 Jan 2012, 8:57:14 UTC

Downloads appear to be running to completion now, but I'm still experiencing sporadic "download error" messages with actual work units, and they never show up in the "tasks" page. I was able to download the smaller files that apparently come with a new setiathome executable.

Wed 25 Jan 2012 03:21:05 AM EST SETI@home Temporarily failed download of setiathome_6.03_i686-pc-linux-gnu: HTTP error
Wed 25 Jan 2012 03:21:05 AM EST SETI@home Backing off 17 min 59 sec on download of setiathome_6.03_i686-pc-linux-gnu
Wed 25 Jan 2012 03:21:10 AM EST Internet access OK - project servers may be temporarily down.
Wed 25 Jan 2012 03:33:41 AM EST SETI@home Started download of setiathome-5.28.x86_64-pc-linux-gnu
Wed 25 Jan 2012 03:33:41 AM EST SETI@home Started download of seti_528.jpg
Wed 25 Jan 2012 03:33:48 AM EST SETI@home Incomplete read of 4642.000000 < 5KB for seti_528.jpg - truncating
Wed 25 Jan 2012 03:33:48 AM EST SETI@home Finished download of seti_528.jpg
Wed 25 Jan 2012 03:33:48 AM EST SETI@home Started download of setiathome-5.28_AUTHORS
Wed 25 Jan 2012 03:33:48 AM EST SETI@home [error] File seti_528.jpg has wrong size: expected 9068, got 0
Wed 25 Jan 2012 03:33:48 AM EST SETI@home [error] Checksum or signature error for seti_528.jpg
Wed 25 Jan 2012 03:33:51 AM EST SETI@home Finished download of setiathome-5.28_AUTHORS
Wed 25 Jan 2012 03:33:51 AM EST SETI@home Started download of setiathome-5.28_COPYING
Wed 25 Jan 2012 03:33:56 AM EST SETI@home Finished download of setiathome-5.28_COPYING
Wed 25 Jan 2012 03:33:56 AM EST SETI@home Started download of setiathome-5.28_COPYRIGHT
Wed 25 Jan 2012 03:33:59 AM EST SETI@home Finished download of setiathome-5.28_COPYRIGHT
Wed 25 Jan 2012 03:33:59 AM EST SETI@home Started download of setiathome-5.28_README
Wed 25 Jan 2012 03:34:02 AM EST SETI@home Finished download of setiathome-5.28_README
Wed 25 Jan 2012 03:34:02 AM EST SETI@home Started download of 18oc11ac.2416.20328.10.10.53
Wed 25 Jan 2012 03:35:26 AM EST SETI@home Finished download of 18oc11ac.2416.20328.10.10.53
Wed 25 Jan 2012 03:35:26 AM EST SETI@home Started download of 18oc11ac.2416.20328.10.10.63
Wed 25 Jan 2012 03:36:33 AM EST SETI@home General prefs: from SETI@home (last modified 17-Sep-2009 17:59:29)
Wed 25 Jan 2012 03:36:33 AM EST SETI@home Computer location: work
Wed 25 Jan 2012 03:36:33 AM EST SETI@home General prefs: no separate prefs for work; using your defaults
Wed 25 Jan 2012 03:36:33 AM EST Reading preferences override file
Wed 25 Jan 2012 03:36:33 AM EST Preferences limit memory usage when active to 9047.04MB
Wed 25 Jan 2012 03:36:33 AM EST Preferences limit memory usage when idle to 16284.66MB
Wed 25 Jan 2012 03:36:33 AM EST Preferences limit disk usage to 6.00GB
Wed 25 Jan 2012 03:36:33 AM EST Preferences limit # CPUs to 7
Wed 25 Jan 2012 03:36:48 AM EST SETI@home Finished download of 18oc11ac.2416.20328.10.10.63
Wed 25 Jan 2012 03:36:48 AM EST SETI@home Started download of 23oc11af.5719.19672.4.10.136
Wed 25 Jan 2012 03:36:48 AM EST SETI@home [error] File 18oc11ac.2416.20328.10.10.63 has wrong size: expected 375055, got 364544
Wed 25 Jan 2012 03:36:48 AM EST SETI@home [error] Checksum or signature error for 18oc11ac.2416.20328.10.10.63

Wed 25 Jan 2012 03:37:43 AM EST Project communication failed: attempting access to reference site
Wed 25 Jan 2012 03:37:43 AM EST SETI@home Temporarily failed download of setiathome-5.28.x86_64-pc-linux-gnu: HTTP error
Wed 25 Jan 2012 03:37:43 AM EST SETI@home Backing off 1 min 7 sec on download of setiathome-5.28.x86_64-pc-linux-gnu
Wed 25 Jan 2012 03:37:43 AM EST SETI@home Started download of 18oc11ac.2416.20328.10.10.22
Wed 25 Jan 2012 03:37:53 AM EST Internet access OK - project servers may be temporarily down.


Even when no download errors are reported, the tasks never show up in the tasks list of the client. Downloads for both Astropulse and "classic" S@H seem to be hampered.

Wed 25 Jan 2012 03:38:30 AM EST SETI@home Started download of 23oc11af.5719.19672.4.10.159
Wed 25 Jan 2012 03:39:18 AM EST SETI@home Finished download of 18oc11ac.2416.20328.10.10.22
Wed 25 Jan 2012 03:39:18 AM EST SETI@home Started download of 23oc11af.5719.19672.4.10.129
Wed 25 Jan 2012 03:40:23 AM EST SETI@home Finished download of 23oc11af.5719.19672.4.10.159
Wed 25 Jan 2012 03:40:23 AM EST SETI@home Started download of 18oc11ac.2416.20328.10.10.34
Wed 25 Jan 2012 03:41:12 AM EST SETI@home Finished download of 23oc11af.5719.19672.4.10.129
Wed 25 Jan 2012 03:41:12 AM EST SETI@home Started download of 23oc11af.5719.19672.4.10.161
Wed 25 Jan 2012 03:41:51 AM EST SETI@home Finished download of 18oc11ac.2416.20328.10.10.34
Wed 25 Jan 2012 03:41:51 AM EST SETI@home Started download of 17oc11ac.2387.21079.7.10.253
Wed 25 Jan 2012 03:43:01 AM EST SETI@home Finished download of 23oc11af.5719.19672.4.10.161
Wed 25 Jan 2012 03:43:01 AM EST SETI@home Started download of 23oc11af.5719.19672.4.10.158
Wed 25 Jan 2012 03:43:40 AM EST SETI@home Finished download of 17oc11ac.2387.21079.7.10.253
Wed 25 Jan 2012 03:43:40 AM EST SETI@home Started download of 23oc11af.5719.19672.4.10.154
Wed 25 Jan 2012 03:44:47 AM EST SETI@home Finished download of 23oc11af.5719.19672.4.10.158
Wed 25 Jan 2012 03:44:47 AM EST SETI@home Started download of 18oc11ac.2416.20328.10.10.31
Wed 25 Jan 2012 03:45:31 AM EST SETI@home Finished download of 23oc11af.5719.19672.4.10.154
Wed 25 Jan 2012 03:45:31 AM EST SETI@home Started download of 18oc11ac.2416.20328.10.10.45
Wed 25 Jan 2012 03:46:25 AM EST SETI@home Finished download of 18oc11ac.2416.20328.10.10.31
Wed 25 Jan 2012 03:46:25 AM EST SETI@home Started download of 23oc11af.5719.19672.4.10.151
Wed 25 Jan 2012 03:47:04 AM EST SETI@home Finished download of 18oc11ac.2416.20328.10.10.45
Wed 25 Jan 2012 03:47:04 AM EST SETI@home Started download of 23oc11af.5719.19672.4.10.144
Wed 25 Jan 2012 03:48:23 AM EST SETI@home Finished download of 23oc11af.5719.19672.4.10.151
Wed 25 Jan 2012 03:48:23 AM EST SETI@home Started download of 18oc11ac.2416.20328.10.10.52
Wed 25 Jan 2012 03:49:10 AM EST SETI@home Finished download of 23oc11af.5719.19672.4.10.144
Wed 25 Jan 2012 03:49:10 AM EST SETI@home Started download of 18oc11ac.2416.20328.10.10.50
Wed 25 Jan 2012 03:49:55 AM EST SETI@home Finished download of 18oc11ac.2416.20328.10.10.52
Wed 25 Jan 2012 03:49:55 AM EST SETI@home Started download of 23oc11af.5719.19672.4.10.155
Wed 25 Jan 2012 03:50:36 AM EST SETI@home Finished download of 18oc11ac.2416.20328.10.10.50
Wed 25 Jan 2012 03:50:36 AM EST SETI@home Started download of 18oc11ac.2416.20328.10.10.55
Wed 25 Jan 2012 03:51:13 AM EST Project communication failed: attempting access to reference site
Wed 25 Jan 2012 03:51:13 AM EST SETI@home Temporarily failed download of 23oc11af.5719.19672.4.10.155: HTTP error
Wed 25 Jan 2012 03:51:13 AM EST SETI@home Backing off 1 min 0 sec on download of 23oc11af.5719.19672.4.10.155
Wed 25 Jan 2012 03:51:13 AM EST SETI@home Started download of 18oc11ac.2416.20328.10.10.59
Wed 25 Jan 2012 03:51:22 AM EST SETI@home Finished download of 18oc11ac.2416.20328.10.10.55
Wed 25 Jan 2012 03:51:22 AM EST SETI@home Started download of seti_603.jpg
Wed 25 Jan 2012 03:51:23 AM EST Internet access OK - project servers may be temporarily down.
Wed 25 Jan 2012 03:51:26 AM EST SETI@home Incomplete read of 4642.000000 < 5KB for seti_603.jpg - truncating
Wed 25 Jan 2012 03:51:26 AM EST SETI@home Finished download of seti_603.jpg
Wed 25 Jan 2012 03:51:26 AM EST SETI@home Started download of 23oc11af.5719.24989.4.10.134
Wed 25 Jan 2012 03:51:26 AM EST SETI@home [error] File seti_603.jpg has wrong size: expected 9068, got 0
Wed 25 Jan 2012 03:51:26 AM EST SETI@home [error] Checksum or signature error for seti_603.jpg
Wed 25 Jan 2012 03:52:34 AM EST SETI@home Finished download of 18oc11ac.2416.20328.10.10.59
Wed 25 Jan 2012 03:52:34 AM EST SETI@home Started download of 23oc11af.5719.24989.4.10.140

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Message 1188237 - Posted: 25 Jan 2012, 9:03:37 UTC - in response to Message 1188236.

On a hunch, I also check "disable image file verification", on a chance that my ISP (T-mobile) is modifying image files. I hope this isn't the case, since I expect my ISP to transmit the data as it is, no matter whether it thinks it can optimize the data...
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Message 1188265 - Posted: 25 Jan 2012, 12:06:07 UTC - in response to Message 1188237.

On a hunch, I also check "disable image file verification", on a chance that my ISP (T-mobile) is modifying image files. I hope this isn't the case, since I expect my ISP to transmit the data as it is, no matter whether it thinks it can optimize the data...

If there is a "turbo speed" or similar setting available at your ISP, it enables the recompression of jpg files.
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Message 1188273 - Posted: 25 Jan 2012, 12:43:51 UTC - in response to Message 1188265.
Last modified: 25 Jan 2012, 12:55:30 UTC

Very strange. I'm seeing checksum errors, multiple times, for downloads.
There is no "turbo mode" switch on my phone.but if they are trying to recompressing "image files", then I'm suspicious about that.

What data type/mime type are the workunits sent as?

Wed 25 Jan 2012 04:15:01 AM EST SETI@home [error] File ap_11oc11ah_B6_P1_00355_20120124_02614.wu has wrong size: expected 8392051, got 495616
Wed 25 Jan 2012 04:15:01 AM EST SETI@home [error] Checksum or signature error for ap_11oc11ah_B6_P1_00355_20120124_02614.wu
Wed 25 Jan 2012 04:17:05 AM EST SETI@home Finished download of ap_11oc11ah_B3_P0_00197_20120124_21598.wu
Wed 25 Jan 2012 04:17:05 AM EST SETI@home [error] File ap_11oc11ah_B3_P0_00197_20120124_21598.wu has wrong size: expected 8392049, got 577536
Wed 25 Jan 2012 04:17:05 AM EST SETI@home [error] Checksum or signature error for ap_11oc11ah_B3_P0_00197_20120124_21598.wu
Wed 25 Jan 2012 04:18:27 AM EST SETI@home Sending scheduler request: To fetch work.
Wed 25 Jan 2012 04:18:27 AM EST SETI@home Reporting 3 completed tasks, requesting new tasks for GPU
Wed 25 Jan 2012 04:18:43 AM EST SETI@home Scheduler request completed: got 0 new tasks
Wed 25 Jan 2012 04:18:43 AM EST SETI@home Message from server: Project has no tasks available
Wed 25 Jan 2012 04:19:50 AM EST SETI@home Finished download of ap_11oc11ah_B2_P1_00222_20120124_17754.wu
Wed 25 Jan 2012 04:19:50 AM EST SETI@home [error] File ap_11oc11ah_B2_P1_00222_20120124_17754.wu has wrong size: expected 8392048, got 733184
Wed 25 Jan 2012 04:19:50 AM EST SETI@home [error] Checksum or signature error for ap_11oc11ah_B2_P1_00222_20120124_17754.wu
Wed 25 Jan 2012 04:23:48 AM EST SETI@home Sending scheduler request: To fetch work.
Wed 25 Jan 2012 04:23:48 AM EST SETI@home Reporting 1 completed tasks, requesting new tasks for GPU
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Message 1188439 - Posted: 26 Jan 2012, 3:45:08 UTC - in response to Message 1188273.

Very strange. I'm seeing checksum errors, multiple times, for downloads.
There is no "turbo mode" switch on my phone.but if they are trying to recompressing "image files", then I'm suspicious about that.

What data type/mime type are the workunits sent as?

Wed 25 Jan 2012 04:15:01 AM EST SETI@home [error] File ap_11oc11ah_B6_P1_00355_20120124_02614.wu has wrong size: expected 8392051, got 495616
Wed 25 Jan 2012 04:15:01 AM EST SETI@home [error] Checksum or signature error for ap_11oc11ah_B6_P1_00355_20120124_02614.wu
Wed 25 Jan 2012 04:17:05 AM EST SETI@home Finished download of ap_11oc11ah_B3_P0_00197_20120124_21598.wu
Wed 25 Jan 2012 04:17:05 AM EST SETI@home [error] File ap_11oc11ah_B3_P0_00197_20120124_21598.wu has wrong size: expected 8392049, got 577536
Wed 25 Jan 2012 04:17:05 AM EST SETI@home [error] Checksum or signature error for ap_11oc11ah_B3_P0_00197_20120124_21598.wu
Wed 25 Jan 2012 04:18:27 AM EST SETI@home Sending scheduler request: To fetch work.
Wed 25 Jan 2012 04:18:27 AM EST SETI@home Reporting 3 completed tasks, requesting new tasks for GPU
Wed 25 Jan 2012 04:18:43 AM EST SETI@home Scheduler request completed: got 0 new tasks
Wed 25 Jan 2012 04:18:43 AM EST SETI@home Message from server: Project has no tasks available
Wed 25 Jan 2012 04:19:50 AM EST SETI@home Finished download of ap_11oc11ah_B2_P1_00222_20120124_17754.wu
Wed 25 Jan 2012 04:19:50 AM EST SETI@home [error] File ap_11oc11ah_B2_P1_00222_20120124_17754.wu has wrong size: expected 8392048, got 733184
Wed 25 Jan 2012 04:19:50 AM EST SETI@home [error] Checksum or signature error for ap_11oc11ah_B2_P1_00222_20120124_17754.wu
Wed 25 Jan 2012 04:23:48 AM EST SETI@home Sending scheduler request: To fetch work.
Wed 25 Jan 2012 04:23:48 AM EST SETI@home Reporting 1 completed tasks, requesting new tasks for GPU

It would not be on the phone, it would be at the ISP (and if you are logging in through a phone, you may not be able to turn it off).
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Message 1188476 - Posted: 26 Jan 2012, 8:43:41 UTC - in response to Message 1188439.

Are SETI@home workunits actually transmitted as .JPEG files? I'm really confused, I would think they would be sent as another MIME type, something more like "binary data", since they would have a different kind of file format?

I've seen notes on various cell phone discussion about disabling caching and proxy server settings to enable that, but nothing is being discussed on the message boards about which ISP/carriers are trying to compress workunits and causing failures.

I can run the boinc command line, but need a better idea about what commands to run to test things one command at a time....
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Message 1188478 - Posted: 26 Jan 2012, 9:24:49 UTC - in response to Message 1188476.

Are SETI@home workunits actually transmitted as .JPEG files?

No, not the work units but some images after initially adding the project or after a reset.

I can't tell you why your work units aren't downloaded correctly, but perhaps you should disable receiving of AstroPulse WUs on your SETI@home preferences page, because they have 8 MiB in contrast to the 300 KiB of the MultiBeam units.

As for debugging, you could try some logging options in cc_config.xml (namely those containing 'http' and 'xfer' in the name.

Gruß,
Gundolf

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Message 1188496 - Posted: 26 Jan 2012, 11:38:37 UTC - in response to Message 1188476.


You can try Hotspot Shield
http://setiathome.berkeley.edu/forum_thread.php?id=64691&nowrap=true#1140754

It creates VPN connection - while Hotspot Shield is running any program on your computer will automatically use this VPN connection to get/send anything from/to Internet.

Since this VPN connection is encoded ('Secure tunnel' just like HTTPS) I think your ISP will not know what is transmitted and will be unable to change anything.


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Message 1188674 - Posted: 26 Jan 2012, 23:07:46 UTC - in response to Message 1188478.

Are SETI@home workunits actually transmitted as .JPEG files?

No, not the work units but some images after initially adding the project or after a reset.

I can't tell you why your work units aren't downloaded correctly, but perhaps you should disable receiving of AstroPulse WUs on your SETI@home preferences page, because they have 8 MiB in contrast to the 300 KiB of the MultiBeam units.

As for debugging, you could try some logging options in cc_config.xml (namely those containing 'http' and 'xfer' in the name.

Gruß,
Gundolf

There are several pieces, some of which are required to be exact for computation to happen correctly, but the images for the screen saver are not in that list. The png files are just for pretty pictures on the screen saver.
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Message 1188697 - Posted: 27 Jan 2012, 0:05:09 UTC - in response to Message 1188674.

The png files are just for pretty pictures on the screen saver.

Actually, the .png files are for the Simple View project icon and project slide show. As far as I know, the image on the Seti screen saver is a .jpeg. ;-)


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Message 1188711 - Posted: 27 Jan 2012, 1:16:48 UTC - in response to Message 1188697.

The png files are just for pretty pictures on the screen saver.

Actually, the .png files are for the Simple View project icon and project slide show. As far as I know, the image on the Seti screen saver is a .jpeg. ;-)


Ah. Ok. Still just pretty pictures...
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Message 1188721 - Posted: 27 Jan 2012, 2:19:11 UTC - in response to Message 1188476.
Last modified: 27 Jan 2012, 2:24:39 UTC

The BOINC client tried downloading some .vlar (smaller SETI@home) workunits.

I seem to be getting consistent HTTP Errors, but it seems unlikely that I'd be getting this many actually network errors, unless something is seriously wrong..

Web browsing works without a hitch, so I'm not sure what the problem could be.
Is there a manually downloadable workunit I can try running, even if I don't get credit for it? I want to isolate where the error is actually occurring.

Suggestions welcome,
Thanks!

Thu 26 Jan 2012 09:12:56 PM EST SETI@home Finished download of 29oc11ac.27507.2112.16.10.32.vlar
Thu 26 Jan 2012 09:12:56 PM EST SETI@home Finished download of 29oc11ac.27507.2112.16.10.34.vlar
Thu 26 Jan 2012 09:12:56 PM EST SETI@home Started download of 03oc11ah.27053.5793.4.10.18
Thu 26 Jan 2012 09:12:56 PM EST SETI@home Started download of 03oc11ah.27053.5793.4.10.12
Thu 26 Jan 2012 09:12:56 PM EST SETI@home [error] File 29oc11ac.27507.2112.16.10.32.vlar has wrong size: expected 375192, got 399366
Thu 26 Jan 2012 09:12:56 PM EST SETI@home [error] Checksum or signature error for 29oc11ac.27507.2112.16.10.32.vlar
Thu 26 Jan 2012 09:12:56 PM EST SETI@home [error] File 29oc11ac.27507.2112.16.10.34.vlar has wrong size: expected 375195, got 395175
Thu 26 Jan 2012 09:12:56 PM EST SETI@home [error] Checksum or signature error for 29oc11ac.27507.2112.16.10.34.vlar

When I PING one of the BOINC servers, I get a 33% packet loss rate.

PING 208.68.240.13 (208.68.240.13) 56(84) bytes of data.
64 bytes from 208.68.240.13: icmp_seq=1 ttl=51 time=1878 ms
...
64 bytes from 208.68.240.13: icmp_seq=28 ttl=51 time=1613 ms

--- 208.68.240.13 ping statistics ---
30 packets transmitted, 20 received, 33% packet loss, time 29030ms
rtt min/avg/max/mdev = 1613.814/1881.041/2081.830/132.326 ms, pipe 3

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Message 1188765 - Posted: 27 Jan 2012, 6:26:09 UTC - in response to Message 1188721.

Just to try to isolate the problem. What happens if you ping google?
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Message 1188818 - Posted: 27 Jan 2012, 10:29:45 UTC - in response to Message 1188674.

There are several pieces, some of which are required to be exact for computation to happen correctly, but the images for the screen saver are not in that list. The png files are just for pretty pictures on the screen saver.

But will BOINC start any tasks if the .png (or .jpg) files aren't downloaded completely?

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Message 1188830 - Posted: 27 Jan 2012, 12:01:58 UTC - in response to Message 1188818.

The BOINC client I run on Ubuntu Linux is trying to download several things:

    climateprediction workunits
    seti@home workunits
    a new seti@home application


None of it seems to be working properly

I've enabled additional debug logging by changing a few zeros to ones, but don't see any extra output. Is there a log file/directory I should be looking for on Linux, that shows the BOINC manager and BOINC Apps starting up?


26-Jan-2012 22:04:26 [SETI@home] Started download of 03oc11ah.27053.5793.4.10.10
26-Jan-2012 22:04:26 [SETI@home] [error] File 04oc11ae.17261.7838.15.10.90 has w
rong size: expected 375187, got 102400
26-Jan-2012 22:04:26 [SETI@home] [error] Checksum or signature error for 04oc11a
e.17261.7838.15.10.90
26-Jan-2012 22:05:37 [---] Project communication failed: attempting access to re
ference site

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Message 1189024 - Posted: 27 Jan 2012, 23:49:24 UTC - in response to Message 1188830.

I've enabled additional debug logging by changing a few zeros to ones, but don't see any extra output. Is there a log file/directory I should be looking for on Linux, that shows the BOINC manager and BOINC Apps starting up?

The cc_config.xml file with the options must be an ANSI file placed in your BOINC data directory. You'll see the line about log flags updated in the BOINC startup messages.

The file that contains those same messages is also in the BOINC data directory and its name starts with stdoutdae. I'm not sure about the suffix with linux.

Gruß,
Gundolf

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