WU not downloaded

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[B^S] Lovespider
[B^S] Lovespider
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20 May 2005 9:26:36 UTC
Topic 189207
(moderation:
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    Hello,
    I just removed and reinstalled BOINC, reattached to my projects but no WU downloaded from E@H.
    I can see some errors but can't understand what's wrong. Can you help/advice?
    Thanks.

    P.S. My computer ID is 218326

    Holmis
    Joined: 4 Jan 05
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    WU not downloaded

    20 May 2005 12:44:49 UTC
    Message 11775
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      Might help if you posted what those errors where!

      [B^S] Lovespider
      [B^S] Lovespider
      Joined: 17 Mar 05
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      I can see that E@H is trying

      23 May 2005 12:17:08 UTC
      Message 11776
      (moderation:
        )

        I can see that E@H is trying to get more work, but it gives a checksum error...
        I attach this from stderr:

        2005-05-23 08:44:57 [Einstein@Home] MD5 check failed for H1_1428.0
        2005-05-23 08:44:57 [Einstein@Home] expected c4be25411866fb785ff4767b95648239, got f96544b29343394beba5f9abd731de47
        2005-05-23 08:44:57 [Einstein@Home] Checksum or signature error for H1_1428.0
        2005-05-23 08:44:57 [Einstein@Home] Unrecoverable error for result H1_1428.0__1428.0_0.1_T12_Fin1_1 (WU download error: couldn't get input files:

        H1_1428.0
        -119
        MD5 check failed

        )
        2005-05-23 08:44:58 [Einstein@Home] Deferring communication with project for 58 seconds
        2005-05-23 09:17:19 [Einstein@Home] No start tag in scheduler reply
        2005-05-23 09:17:19 [Einstein@Home] Can't parse scheduler reply
        2005-05-23 09:17:19 [Einstein@Home] Deferring communication with project for 1 minutes and 0 seconds
        ..........
        2005-05-23 09:18:22 [Einstein@Home] Message from server: No work sent
        2005-05-23 09:18:22 [Einstein@Home] Message from server: (reached daily quota of 2 results)

        Bruce Allen
        Bruce Allen
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        I can see that E@H is trying

        23 May 2005 16:58:25 UTC
        Message 11777 in response to message 11776
        (moderation:
          )

          I can see that E@H is trying to get more work, but it gives a checksum error...
          I attach this from stderr:

          2005-05-23 08:44:57 [Einstein@Home] MD5 check failed for H1_1428.0
          2005-05-23 08:44:57 [Einstein@Home] expected c4be25411866fb785ff4767b95648239, got f96544b29343394beba5f9abd731de47
          2005-05-23 08:44:57 [Einstein@Home] Checksum or signature error for H1_1428.0
          2005-05-23 08:44:57 [Einstein@Home] Unrecoverable error for result H1_1428.0__1428.0_0.1_T12_Fin1_1 (WU download error: couldn't get input files:

          H1_1428.0
          -119
          MD5 check failed

          )
          2005-05-23 08:44:58 [Einstein@Home] Deferring communication with project for 58 seconds
          2005-05-23 09:17:19 [Einstein@Home] No start tag in scheduler reply
          2005-05-23 09:17:19 [Einstein@Home] Can't parse scheduler reply
          2005-05-23 09:17:19 [Einstein@Home] Deferring communication with project for 1 minutes and 0 seconds
          ..........
          2005-05-23 09:18:22 [Einstein@Home] Message from server: No work sent
          2005-05-23 09:18:22 [Einstein@Home] Message from server: (reached daily quota of 2 results)

          The correct checksum is:
          [root@einstein download]# md5sum ./33e/H1_1428.0
          c4be25411866fb785ff4767b95648239 ./33e/H1_1428.0

          Try finding and then deleting this file (H1_1428.0) from your system. This may force another (correct) download.

          Cheers,
          Bruce

          Director, Einstein@Home

          [B^S] Lovespider
          [B^S] Lovespider
          Joined: 17 Mar 05
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          Hello Bruce, I checked but

          24 May 2005 14:11:21 UTC
          Message 11778
          (moderation:
            )

            Hello Bruce,
            I checked but there is not this WU in my disk.
            Anyway E@H is trying to download any WU I get:

            24/05/2005 14.59.37|Einstein@Home|MD5 check failed for H1_0602.5
            24/05/2005 14.59.37|Einstein@Home|expected 40dd2bd0bb2c1383ee7c36b5ff85f301, got 76acefec868c2f6afa1c43143b564fd8
            24/05/2005 14.59.37|Einstein@Home|Checksum or signature error for H1_0602.5
            24/05/2005 14.59.37|Einstein@Home|Unrecoverable error for result H1_0602.5__0602.9_0.1_T06_Fin1_1 (WU download error: couldn't get input files: H1_0602.5 -119 MD5 check failed)
            24/05/2005 14.59.38|Einstein@Home|Deferring communication with project for 59 seconds

            I already tried to reset the project, detach and reattach but it always gives this checksum error. I have this error also in another PC.

            Can you please check my id's?
            218457
            218445
            218353
            81934

            ralic
            ralic
            Joined: 8 Nov 04
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            I already tried to reset the

            26 May 2005 20:29:05 UTC
            Message 11779 in response to message 11778
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              )

              I already tried to reset the project, detach and reattach but it always gives this checksum error. I have this error also in another PC.

              From what you describe it would appear to me that your data is being modified in transit. One or two MD5 failures would be normal, but certainly not every file and on multiple PC's.

              Are you behind some kind of caching proxy, or do you know of anything that could be modifying the HTTP data that you are receiving (Company firewall, HTTP port scanner etc.)?

              Sure looks like a strange one. :(

              [edit]
              Just had another thought.
              Are you using any kind of software disk compression/de-compression or software that may be modifying all the non-executable files stored to your disk?
              [/edit]

              [B^S] Lovespider
              [B^S] Lovespider
              Joined: 17 Mar 05
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              Hi again, I was starting to

              27 May 2005 6:51:54 UTC
              Message 11780
              (moderation:
                )

                Hi again,
                I was starting to think that it could be some proxy in my company's HQ as you said and no compression/decompression soft in my disk...
                The only thing different between all my pc's is that in the one I have MD5 checksum errors has Symantec Firewall installed (not the others).
                It is still strange because I always had this firewall but when BOINC/E@H introduced the checksum, I could not download any WU.
                I'm going to try to disable the Symantec service and then retry...I'll let you know.

                Thanks

                [B^S] Lovespider
                [B^S] Lovespider
                Joined: 17 Mar 05
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                Credit: 292172
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                I found this error in my

                27 May 2005 7:12:33 UTC
                Message 11781
                (moderation:
                  )

                  I found this error in my firewall log while downloading WU:

                  TCP non-syn/non-ack packet on invalid connection. Packet has been dropped.
                  Source IP address: einstein.phys.uwm.edu(129.89.61.70).
                  Destination IP address: yyyyyyyyyy(xxx.xxx.xxx.xxx).
                  TCP Source Port: http(80).
                  TCP Destination Port: 1316.
                  TCP Message Flags: 0x00000018.

                  Now the question is: is there something E@H can do? In the meanwhile I'll try to find a workaround for this but since my firewall has remote controlled rules, I think I cannot do so much.
                  I'll eventually post here a solution...

                  [B^S] Lovespider
                  [B^S] Lovespider
                  Joined: 17 Mar 05
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                  Credit: 292172
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                  Checking more deeply I found

                  31 May 2005 8:26:13 UTC
                  Message 11782
                  (moderation:
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                    Checking more deeply I found that is not my firewall (I attached my PC directly to Internet and correctly downloaded H1_0895.5) so it has to be the company proxy/gateway.
                    Is it possible to somehow solve this? Or do you have any idea? Do you think that using an external proxy would help? Can you advise me one?

                    Best regards,
                    Lovespider

                    ralic
                    ralic
                    Joined: 8 Nov 04
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                    Is it possible to somehow

                    2 Jun 2005 8:15:02 UTC
                    Message 11783 in response to message 11782
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                      Is it possible to somehow solve this? Or do you have any idea? Do you think that using an external proxy would help? Can you advise me one?
                      If it's the company gateway, then there's no much you can do about it. All data between your company PC and the Net would in theory have to pass via the gateway, so an external proxy probably wouldn't make a difference.

                      Since you have the company's permission to run BOINC on their PC, you could speak to someone in the IT department to find out if the problem is known to them. Either they will be aware of it, being something they have actively implemented, or they may be unaware of it and you may have found a bug in their gateway software.

                      Of course, you do have the company's permission to run BOINC, don't you? ;-) If you don't, be very careful how you handle the situation, as running BOINC without your company's permission may have unpleasant consequences for you.

                      [B^S] Lovespider
                      [B^S] Lovespider
                      Joined: 17 Mar 05
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                      Credit: 292172
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                      Thank you Ralic, I'll not

                      7 Jun 2005 12:30:55 UTC
                      Message 11784
                      (moderation:
                        )

                        Thank you Ralic,
                        I'll not involve proxy guys for this matter ;-). For the time being, I'll just suspend E@H hoping that the new version of BOINC will solve this.
                        It is still strange that the first WU were downloaded when I first attached my PC to project but no further WU were downloaded because of MD5 checksum.
                        I also will downgrade BOINC version to check if this could be the reason.
                        Thanks again.

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