502 Errors downloading SETI artifacts


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Profile Ralph
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Message 1191941 - Posted: 6 Feb 2012, 11:16:50 UTC
Last modified: 6 Feb 2012, 11:25:36 UTC

After Feb 3rd, my cell phone's ISP relaxed the bandwidth restriction.
I can download and completed Einstein@home workunits, but SETI@home still has a problem, I've been unable to download a workunit (or the SETI client in that whole time.

I turned off GPU processing, turned off astropulse, but even small workunits aren't being downloaded, so I'm not sure what to try next. I've tried resetting the project, detaching and reattaching.

It seems that I'm stuck trying to download the SETI client itself. I've alternatively hit the .13 and .18 servers, with no change in results.

HTTP 502 errors are noted whether I use wget or the BOINC setup:

wget http://boinc2.ssl.berkeley.edu/sg_images/sah_40.png--2012-02-06 06:15:46-- http://boinc2.ssl.berkeley.edu/sg_images/sah_40.png
Resolving boinc2.ssl.berkeley.edu... 208.68.240.18, 208.68.240.13
Connecting to boinc2.ssl.berkeley.edu|208.68.240.18|:80... connected.
HTTP request sent, awaiting response... 502 Bad Request
2012-02-06 06:15:48 ERROR 502: Bad Request.


Here's a screenshot showing what needs to be downloaded http://plus.google.com/photos/103128969970264876524/albums/5705978612713215697?authkey=CNOrk4id4JK4aA


Log details:


Mon 06 Feb 2012 06:23:10 AM EST [http_debug] [ID#54] info: Trying 208.68.240.18...
Mon 06 Feb 2012 06:23:10 AM EST [http_debug] [ID#55] info: About to connect() to boinc2.ssl.berkeley.edu port 80 (#1)
Mon 06 Feb 2012 06:23:10 AM EST [http_debug] [ID#55] info: Trying 208.68.240.18...
Mon 06 Feb 2012 06:23:10 AM EST [http_debug] [ID#54] info: Connected to boinc2.ssl.berkeley.edu (208.68.240.18) port 80 (#0)
Mon 06 Feb 2012 06:23:10 AM EST [http_debug] [ID#54] Sent header to server: GET /sah/download_fanout/setiathome-5.28.x86_64-pc-linux-gnu HTTP/1.0
User-Agent: BOINC client (x86_64-pc-linux-gnu 6.10.17)
Host: boinc2.ssl.berkeley.edu
Accept: */*
Accept-Encoding: deflate, gzip
Content-Type: application/x-www-form-urlencoded

Mon 06 Feb 2012 06:23:10 AM EST [http_debug] [ID#54] info: Expire cleared
Mon 06 Feb 2012 06:23:10 AM EST [http_debug] [ID#55] info: Connected to boinc2.ssl.berkeley.edu (208.68.240.18) port 80 (#1)
Mon 06 Feb 2012 06:23:10 AM EST [http_debug] [ID#55] Sent header to server: GET /sah/download_fanout/seti_528.jpg HTTP/1.0
User-Agent: BOINC client (x86_64-pc-linux-gnu 6.10.17)
Host: boinc2.ssl.berkeley.edu
Accept: */*
Accept-Encoding: deflate, gzip
Content-Type: application/x-www-form-urlencoded

Mon 06 Feb 2012 06:23:10 AM EST [http_debug] [ID#54] Received header from server: HTTP/1.1 502 Bad Request
Mon 06 Feb 2012 06:23:10 AM EST [http_debug] [ID#54] Received header from server: Content-Length: 200
Mon 06 Feb 2012 06:23:10 AM EST [http_debug] [ID#54] Received header from server: Connection: close
Mon 06 Feb 2012 06:23:10 AM EST [http_debug] [ID#54] Received header from server:
Mon 06 Feb 2012 06:23:10 AM EST [http_xfer_debug] HTTP: wrote 200 bytes
Mon 06 Feb 2012 06:23:10 AM EST [http_debug] [ID#54] info: Closing connection #0
Mon 06 Feb 2012 06:23:10 AM EST [http_debug] [ID#55] Received header from server: HTTP/1.1 502 Bad Request
Mon 06 Feb 2012 06:23:10 AM EST [http_debug] [ID#55] Received header from server: Content-Length: 177
Mon 06 Feb 2012 06:23:10 AM EST [http_debug] [ID#55] Received header from server: Connection: close
Mon 06 Feb 2012 06:23:10 AM EST [http_debug] [ID#55] Received header from server:
Mon 06 Feb 2012 06:23:10 AM EST [http_xfer_debug] HTTP: wrote 177 bytes
Mon 06 Feb 2012 06:23:10 AM EST [http_debug] [ID#55] info: Expire cleared
Mon 06 Feb 2012 06:23:10 AM EST [http_debug] [ID#55] info: Closing connection #1
Mon 06 Feb 2012 06:23:11 AM EST SETI@home [file_xfer_debug] FILE_XFER_SET::poll(): http op done; retval -184
Mon 06 Feb 2012 06:23:11 AM EST SETI@home [file_xfer_debug] FILE_XFER_SET::poll(): http op done; retval -184
Mon 06 Feb 2012 06:23:11 AM EST SETI@home [file_xfer_debug] file transfer status -184
Mon 06 Feb 2012 06:23:11 AM EST SETI@home Temporarily failed download of setiathome-5.28.x86_64-pc-linux-gnu: HTTP error
Mon 06 Feb 2012 06:23:11 AM EST SETI@home [file_xfer_debug] project-wide xfer delay for 96.471072 sec
Mon 06 Feb 2012 06:23:11 AM EST SETI@home Backing off 1 min 46 sec on download of setiathome-5.28.x86_64-pc-linux-gnu
Mon 06 Feb 2012 06:23:11 AM EST SETI@home [file_xfer_debug] file transfer status -184
Mon 06 Feb 2012 06:23:11 AM EST SETI@home Temporarily failed download of seti_528.jpg: HTTP error

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Message 1191961 - Posted: 6 Feb 2012, 13:41:09 UTC - in response to Message 1191941.

Exit BOINC.
Download the Seti application by hand, put it in your BOINC Data directory/projects/setiathome.berkeley.edu/ directory. Link http://boinc2.ssl.berkeley.edu/sah/download_fanout/setiathome-5.28.x86_64-pc-linux-gnu

Restart BOINC.

Where your data directory is depends on how you installed BOINC. From the Berkeley installer, or from the package manager.
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Profile Ralph
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Message 1192343 - Posted: 8 Feb 2012, 3:17:22 UTC - in response to Message 1191961.

OK, downloading using those link do NOT work.

(It seems identical to the link that the BOINC client is using.)

How can I obtain the binaries? I tried these three types of link:
Main address:
http://boinc2.ssl.berkeley.edu/sah/download_fanout/setiathome-5.28.x86_64-pc-linux-gnu
Server 1: http://208.68.240.18/sah/download_fanout/setiathome-5.28.x86_64-pc-linux-gnu
Server 2: http://208.68.240.13/sah/download_fanout/setiathome-5.28.x86_64-pc-linux-gnu

I have connectivity, ping to 208.26.240.18 returns a response, no dropped packets.

What seems to work is using the Coral CDN, bypassing the SETI@home site altogether. So http://boinc2.ssl.berkeley.edu.nyud.net/sah/download_fanout/setiathome-5.28.x86_64-pc-linux-gnu downloads OK

My theories are:
1) My ISP is putting some half-assed, broken proxy server between myself and the servers at Berkeley.

2) SETI's network infrastructure has blacklisted my computer somehow.

The problem is, once I download the binaries, how can I be sure that workunits will download properly? Can I force HTTPS connections or otherwise work around my ISP's brain-dead proxy?[/b]
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Message 1192351 - Posted: 8 Feb 2012, 4:25:45 UTC - in response to Message 1192343.

I was able to download the executables and most of the support files using the nyud.net hack (listed above).

This does not work for workunits, since the BOINC setup must do that.

How can I convince the SETI@home server boinc2.ssl.berkeley.edu to let me have those? Everything I try to download directly from it suffer the same 502 fate.

It seems like a bad proxy should affect ALL projects, but einstein at home and others are working fine.
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Message 1192552 - Posted: 8 Feb 2012, 18:01:44 UTC - in response to Message 1192351.


Try to set some free Proxy by your choice in BOINC Options
http://setiathome.berkeley.edu/forum_thread.php?id=64691
http://setiathome.berkeley.edu/forum_thread.php?id=64691&nowrap=true#1158800


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