No Work, because Space

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Anonymous
6 Aug 2005 2:01:41 UTC
Topic 13064
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    Quote:


    6.8.2005 3:59:54|Einstein@Home|Message from server: No work sent
    6.8.2005 3:59:54|Einstein@Home|Message from server: (there was work but you don't have enough disk space allocated)
    6.8.2005 3:59:54|Einstein@Home|Message from server: No disk space (you must free 39.3 MB before BOINC gets space). Review preferences for minimum disk free space allowed.

    I've lot of diskspace, where is problem ? minimum disk space is 0,001 gb

    Here's what's in the database for you:
    100
    50
    0.001

    1
    50
    0.01

    I don't see the problem here: it looks like you have settings of 1 MB free, and 10MB free at home. But perhaps you have changed your settings recently...

    Bruce

    Bruce Allen
    Bruce Allen
    Joined: 15 Oct 04
    Posts: 958
    Credit: 170,849,008
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    RE: 6.8.2005

    7 Aug 2005 13:10:05 UTC
    Message 2597
    (moderation:
      )

      Quote:


      6.8.2005 3:59:54|Einstein@Home|Message from server: No work sent
      6.8.2005 3:59:54|Einstein@Home|Message from server: (there was work but you don't have enough disk space allocated)
      6.8.2005 3:59:54|Einstein@Home|Message from server: No disk space (you must free 39.3 MB before BOINC gets space). Review preferences for minimum disk free space allowed.

      I've lot of diskspace, where is problem ? minimum disk space is 0,001 gb

      Here's what's in the database for you:
      disk_max_used_gb 100
      disk_max_used_pct 50
      disk_min_free_gb 0.001

      venue name="home"
      disk_max_used_gb 1
      disk_max_used_pct 50
      disk_min_free_gb 0.01

      I don't see the problem here: it looks like you have settings of 1 MB free, and 10MB free at home. But perhaps you have changed your settings recently...

      Bruce

      Bruce Allen
      Bruce Allen
      Joined: 15 Oct 04
      Posts: 958
      Credit: 170,849,008
      RAC: 0

      RE: Bruce, What does the

      8 Aug 2005 10:12:24 UTC
      Message 2598
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        Quote:

        Bruce,

        What does the host record show for free disk space? Thats hostid 381903. The computer summary page shows the host has 255.49MB RAM, the message log shows the host has 191.55MB so somethings messed up.

        Could be the scheduler is using old data already on the server and ignoring the newer data sent by the client.

        From the message log, the host has:

        191.55 MB RAM
        691.70 MB SWAP
        54.99 GB total disk space
        2.38 GB available disk space

        Is that what the server shows?

        Walt

        Don't confuse disk space and RAM. The database for this host currently shows:

        Memory 255.49 MB
        Cache 976.56 KB
        Swap Space 748.15 MB
        Total Disk Space 54.99 GB
        Free Disk Space 0.05 GB

        Looking at the scheduler-side code to calculate disk space required, something looks odd (messed up). I think David and/or Rom might have messed with this code recently. I'll have to take a good look at it. I would not be surprised if this were a bug on the server side.

        Bruce

        Bruce Allen
        Bruce Allen
        Joined: 15 Oct 04
        Posts: 958
        Credit: 170,849,008
        RAC: 0

        This host is currently

        8 Aug 2005 20:08:51 UTC
        Message 2599
        (moderation:
          )

          This host is currently showing (in the database)

          d_total: 59048460288
          d_free: 49283072

          The last number is the problem. Free space is 49MB. User prefs are to leave available 10MB of free space. Hence total available space for BOINC to use on this machine is 39MB, which is not enough. The actual message to the user is wrong. But the fundamental issue here is that the host reports it only has 49MB of free disk space.

          [EDIT 30 MINUTES LATER]

          I have found/fixed the bug in the scheduler. The problem was with the MESSAGE sent to the user. Unfortunately I can't put the new scheduler in place. There have been a number of recent (untested) changes that David Anderson has checked in and I am afraid to put a new scheduler in place just now.

          The bug was the following. The message to the user SHOULD have read:

          Not enough disk space (only 39.3 MB free for BOINC to use).

          Bruce

          Bruce Allen
          Bruce Allen
          Joined: 15 Oct 04
          Posts: 958
          Credit: 170,849,008
          RAC: 0

          RE: RE: This host is

          9 Aug 2005 4:22:02 UTC
          Message 2600
          (moderation:
            )

            Quote:
            Quote:

            This host is currently showing (in the database)

            d_total: 59048460288
            d_free: 49283072

            The last number is the problem. Free space is 49MB.

            BOINC 4.7x isn't picking up the host info, its just using whatever is already in the client_state file. BOINC does report 2.38GB free when it starts, but afterwards still thinks theres only 49MB available. I reported it on the developers list and opened a bug on BoincZilla.

            BOINC 4.45 doesn't have this problem so reinstalling that would "fix" it, with BOINC reporting the correct free space and allowing work to be downloaded.

            OK, I understand. If this doesn't get addressed reasonably soon, I'll write to David and Rom about it too. (PS: Walt, if you send me a patch against BOINC CVS HEAD, I'll apply it.)

            Bruce

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