Panic Mode On (109) Server Problems?

Author	Message
Richard Haselgrove Volunteer tester Send message Joined: 4 Jul 99 Posts: 14690 Credit: 200,643,578 RAC: 874	Message 1911160 - Posted: 6 Jan 2018, 17:38:23 UTC - in response to Message 1911151. HTTP/1.1 502 Server Hangup According to Wikipedia, and numerous other sources, 502 is normally defined as 502 Bad Gateway The server was acting as a gateway or proxy and received an invalid response from the upstream server. I've seen that often enough from projects like Einstein, which makes extensive use of gateway servers to shield the actual data storage servers. According to JohnDK's log, his machine connected to georgem, and sent off the opening gambit as normal: but then got back both the '502 Server Hangup', and the following plain-text HTML (badly written), obviously designed to be viewed in a browser. I don't think the SETI servers do that, but I know that my router does send me pretty pictures to tell me what's gone wrong locally. So, maybe the reply didn't come from a Berkeley server, but from somewhere much closer to home? ID: 1911160 ·

betreger Send message Joined: 29 Jun 99 Posts: 11450 Credit: 29,581,041 RAC: 66	Message 1911177 - Posted: 6 Jan 2018, 18:17:56 UTC I've been getting this on and off all morning. 1/6/2018 10:14:51 AM \| SETI@home \| Started download of blc05_2bit_guppi_57976_06552_HIP74702_0024.15741.409.22.45.247.vlar 1/6/2018 10:14:53 AM \| \| Project communication failed: attempting access to reference site 1/6/2018 10:14:53 AM \| SETI@home \| Temporarily failed download of blc05_2bit_guppi_57976_06552_HIP74702_0024.15741.409.22.45.247.vlar: transient HTTP error 1/6/2018 10:14:53 AM \| SETI@home \| Backing off 00:20:33 on download of blc05_2bit_guppi_57976_06552_HIP74702_0024.15741.409.22.45.247.vlar 1/6/2018 10:14:55 AM \| \| Internet access OK - project servers may be temporarily down. ID: 1911177 ·

JohnDK Volunteer tester Send message Joined: 28 May 00 Posts: 1222 Credit: 451,243,443 RAC: 1,127	Message 1911181 - Posted: 6 Jan 2018, 18:23:34 UTC - in response to Message 1911160. HTTP/1.1 502 Server Hangup According to Wikipedia, and numerous other sources, 502 is normally defined as 502 Bad Gateway The server was acting as a gateway or proxy and received an invalid response from the upstream server. I've seen that often enough from projects like Einstein, which makes extensive use of gateway servers to shield the actual data storage servers. According to JohnDK's log, his machine connected to georgem, and sent off the opening gambit as normal: but then got back both the '502 Server Hangup', and the following plain-text HTML (badly written), obviously designed to be viewed in a browser. I don't think the SETI servers do that, but I know that my router does send me pretty pictures to tell me what's gone wrong locally. So, maybe the reply didn't come from a Berkeley server, but from somewhere much closer to home? OK, I use Freedome VPN and switching location a few times seems to have fixed my download problems. ID: 1911181 ·

Chris904395093209d Volunteer tester Send message Joined: 1 Jan 01 Posts: 112 Credit: 29,923,129 RAC: 6	Message 1911192 - Posted: 6 Jan 2018, 18:50:41 UTC - in response to Message 1911181. OK, I use Freedome VPN and switching location a few times seems to have fixed my download problems. I tried my VPN software earlier today (with the default location to US) but that didn't work. After seeing your post, I tried Mexico, that worked for the 5 I had stuck. Turned off the VPN software, and another 15 got stuck. Turned the VPN software back on to Mexico, and those 15 downloaded with no issues. Kinda strange. ~Chris ID: 1911192 ·

Richard Haselgrove Volunteer tester Send message Joined: 4 Jul 99 Posts: 14690 Credit: 200,643,578 RAC: 874	Message 1911197 - Posted: 6 Jan 2018, 18:59:28 UTC Last modified: 6 Jan 2018, 19:02:56 UTC Um. We had that a few years ago, didn't we? Linux hosts could get data. Windows hosts couldn't get data. Windows hosts using a Linux proxy could get data. Om ... Om ... Om ... the words 'timestamp' and 'RFC' are coming into my mind. Be right back. Here you go. From 2013. Message 1343415 ID: 1911197 ·

juan BFP Volunteer tester Send message Joined: 16 Mar 07 Posts: 9786 Credit: 572,710,851 RAC: 3,799	Message 1911198 - Posted: 6 Jan 2018, 19:04:08 UTC - in response to Message 1911197. Om ... Om ... Om ... the words 'timestamp' and 'RFC' are coming into my mind. Be right back. I remember that, maybe something related to the size of the package who forced us to use proxies to DL the WU. But that was fixed at the time? Maybe somebody delete the wrong lines.... ID: 1911198 ·

Richard Haselgrove Volunteer tester Send message Joined: 4 Jul 99 Posts: 14690 Credit: 200,643,578 RAC: 874	Message 1911202 - Posted: 6 Jan 2018, 19:14:33 UTC - in response to Message 1911198. It was related to congestion on busy internet links - read the RFC I linked in that earlier post. Soon afterwards, the project got permission to use the Campus gigabit link up the hill. The problem went away, because the congestion went away. Maybe the newer larger WU datafiles are clogging it up again, especially when we're recovering from an outage? ID: 1911202 ·

juan BFP Volunteer tester Send message Joined: 16 Mar 07 Posts: 9786 Credit: 572,710,851 RAC: 3,799	Message 1911204 - Posted: 6 Jan 2018, 19:24:11 UTC Last modified: 6 Jan 2018, 19:24:25 UTC At that time we use the TCP Optimizer program to change the values on the Windows hosts to works as they where Linux and that helps a lot at that time at least. I'm old but I clearly remember they found the problem and fixed on the server side. Was about 5 Years ago. ID: 1911204 ·

Richard Haselgrove Volunteer tester Send message Joined: 4 Jul 99 Posts: 14690 Credit: 200,643,578 RAC: 874	Message 1911208 - Posted: 6 Jan 2018, 19:27:59 UTC - in response to Message 1911204. It was a networking problem, not a server problem. They fixed the network. Since then, they've moved the servers down the hill into the data centre, so they have the benefit of proper modern infrastructure. ID: 1911208 ·

Richard Haselgrove Volunteer tester Send message Joined: 4 Jul 99 Posts: 14690 Credit: 200,643,578 RAC: 874	Message 1911210 - Posted: 6 Jan 2018, 19:29:56 UTC - in response to Message 1911204. We found the solution via the optimiser, but the only change we made was to add one value to the Windows Registry. You can do that yourself. Details are in the post. ID: 1911210 ·

juan BFP Volunteer tester Send message Joined: 16 Mar 07 Posts: 9786 Credit: 572,710,851 RAC: 3,799	Message 1911217 - Posted: 6 Jan 2018, 19:44:41 UTC - in response to Message 1911210. We found the solution via the optimiser, but the only change we made was to add one value to the Windows Registry. You can do that yourself. Details are in the post. But i use a Linux host now. The fix is for the windows hosts no? ID: 1911217 ·

Richard Haselgrove Volunteer tester Send message Joined: 4 Jul 99 Posts: 14690 Credit: 200,643,578 RAC: 874	Message 1911219 - Posted: 6 Jan 2018, 19:46:37 UTC - in response to Message 1911217. We found the solution via the optimiser, but the only change we made was to add one value to the Windows Registry. You can do that yourself. Details are in the post. But i use a Linux host now. The fix is for the windows hosts no? Yes, Linux has it enabled by default. That's why the proxy trick worked. ID: 1911219 ·

juan BFP Volunteer tester Send message Joined: 16 Mar 07 Posts: 9786 Credit: 572,710,851 RAC: 3,799	Message 1911222 - Posted: 6 Jan 2018, 19:50:40 UTC - in response to Message 1911219. We found the solution via the optimiser, but the only change we made was to add one value to the Windows Registry. You can do that yourself. Details are in the post. But i use a Linux host now. The fix is for the windows hosts no? Yes, Linux has it enabled by default. That's why the proxy trick worked. Then why i have the same problem and need to babysitting on the retry bottom? ID: 1911222 ·

Richard Haselgrove Volunteer tester Send message Joined: 4 Jul 99 Posts: 14690 Credit: 200,643,578 RAC: 874	Message 1911223 - Posted: 6 Jan 2018, 19:53:25 UTC - in response to Message 1911222. We found the solution via the optimiser, but the only change we made was to add one value to the Windows Registry. You can do that yourself. Details are in the post. But i use a Linux host now. The fix is for the windows hosts no? Yes, Linux has it enabled by default. That's why the proxy trick worked. Then why i have the same problem and need to babysitting on the retry bottom? Because it's probably not the same problem. Back to square 1, and re-diagnose. IIRC, the previous problem was downloads that started, but paused part way through and wouldn't restart. Is that happening again? ID: 1911223 ·

juan BFP Volunteer tester Send message Joined: 16 Mar 07 Posts: 9786 Credit: 572,710,851 RAC: 3,799	Message 1911224 - Posted: 6 Jan 2018, 19:56:38 UTC - in response to Message 1911223. IIRC, the previous problem was downloads that started, but paused part way through and wouldn't restart. Is that happening again? The DL some WU the some stops this is an example: After you hit the retry bottom they restart : Sat 06 Jan 2018 02:41:54 PM EST \| SETI@home \| Started download of blc05_2bit_guppi_57976_06552_HIP74702_0024.909.818.22.45.128.vlar Sat 06 Jan 2018 02:41:56 PM EST \| \| Internet access OK - project servers may be temporarily down. Sat 06 Jan 2018 02:41:56 PM EST \| SETI@home \| Temporarily failed download of blc05_2bit_guppi_57976_07262_HIP74926_0026.863.818.22.45.164.vlar: transient HTTP error Sat 06 Jan 2018 02:41:56 PM EST \| SETI@home \| Backing off 00:05:58 on download of blc05_2bit_guppi_57976_07262_HIP74926_0026.863.818.22.45.164.vlar Sat 06 Jan 2018 02:41:56 PM EST \| SETI@home \| Temporarily failed download of blc05_2bit_guppi_57976_06552_HIP74702_0024.909.818.22.45.128.vlar: transient HTTP error Sat 06 Jan 2018 02:41:56 PM EST \| SETI@home \| Backing off 00:06:33 on download of blc05_2bit_guppi_57976_06552_HIP74702_0024.909.818.22.45.128.vlar ID: 1911224 ·

Richard Haselgrove Volunteer tester Send message Joined: 4 Jul 99 Posts: 14690 Credit: 200,643,578 RAC: 874	Message 1911226 - Posted: 6 Jan 2018, 19:59:51 UTC - in response to Message 1911224. So, what's the transient error? Do the <http_debug> thing. ID: 1911226 ·

betreger Send message Joined: 29 Jun 99 Posts: 11450 Credit: 29,581,041 RAC: 66	Message 1911236 - Posted: 6 Jan 2018, 20:22:56 UTC - in response to Message 1911224. Last modified: 6 Jan 2018, 20:23:59 UTC IIRC, the previous problem was downloads that started, but paused part way through and wouldn't restart. Is that happening again? The DL some WU the some stops this is an example: After you hit the retry bottom they restart : Sat 06 Jan 2018 02:41:54 PM EST \| SETI@home \| Started download of blc05_2bit_guppi_57976_06552_HIP74702_0024.909.818.22.45.128.vlar Sat 06 Jan 2018 02:41:56 PM EST \| \| Internet access OK - project servers may be temporarily down. Sat 06 Jan 2018 02:41:56 PM EST \| SETI@home \| Temporarily failed download of blc05_2bit_guppi_57976_07262_HIP74926_0026.863.818.22.45.164.vlar: transient HTTP error Sat 06 Jan 2018 02:41:56 PM EST \| SETI@home \| Backing off 00:05:58 on download of blc05_2bit_guppi_57976_07262_HIP74926_0026.863.818.22.45.164.vlar Sat 06 Jan 2018 02:41:56 PM EST \| SETI@home \| Temporarily failed download of blc05_2bit_guppi_57976_06552_HIP74702_0024.909.818.22.45.128.vlar: transient HTTP error Sat 06 Jan 2018 02:41:56 PM EST \| SETI@home \| Backing off 00:06:33 on download of blc05_2bit_guppi_57976_06552_HIP74702_0024.909.818.22.45.128.vlar +1 It's not just Juan ID: 1911236 ·

Richard Haselgrove Volunteer tester Send message Joined: 4 Jul 99 Posts: 14690 Credit: 200,643,578 RAC: 874	Message 1911238 - Posted: 6 Jan 2018, 20:26:02 UTC - in response to Message 1911236. So, what's your transient error? ID: 1911238 ·

betreger Send message Joined: 29 Jun 99 Posts: 11450 Credit: 29,581,041 RAC: 66	Message 1911241 - Posted: 6 Jan 2018, 20:31:11 UTC - in response to Message 1911238. Last modified: 6 Jan 2018, 20:32:14 UTC So, what's your transient error? 1/6/2018 12:20:03 PM \| SETI@home \| Temporarily failed download of blc05_2bit_guppi_57976_08930_HIP74235_0031.10414.818.22.45.14.vlar: transient HTTP error It has cleared now, it has been intermittent all morning. ID: 1911241 ·

Wiggo Send message Joined: 24 Jan 00 Posts: 37594 Credit: 261,360,520 RAC: 489	Message 1911242 - Posted: 6 Jan 2018, 20:31:50 UTC I'm sorry to report no problems at this end at all. Cheers. ID: 1911242 ·

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