Intermittent Session Errors

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  • Keith Tellinghuisen
    #1

    Intermittent Session Errors

    I have written a series of php scripts which access a mySQL database and
    makes use of session variables. Just in the past two days I have
    intermittently been receiving the following error messages:

    Warning: Unknown(): write failed: No space left on device (28) in Unknown
    on line 0

    Warning: Unknown(): Failed to write session data (files). Please verify that
    the current setting of session.save_pa th is correct (/tmp) in Unknown on
    line 0

    I have not changed the code relating to the session variables in several
    days.

    This is on a shared server. The server is a linux server running php 4.3.9
    and Apache 1.3.31.

    Any suggestions anyone can give would be greatly appreciated.

    Keith Tellinghuisen


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    • Andy Hassall
      #2
      Re: Intermittent Session Errors

      On Sat, 20 Nov 2004 08:14:50 -0800, "Keith Tellinghuisen"
      <keithtell@adel phia.net> wrote:
      [color=blue]
      >I have written a series of php scripts which access a mySQL database and
      >makes use of session variables. Just in the past two days I have
      >intermittent ly been receiving the following error messages:
      >
      > Warning: Unknown(): write failed: No space left on device (28) in Unknown
      >on line 0
      >
      >Warning: Unknown(): Failed to write session data (files). Please verify that
      >the current setting of session.save_pa th is correct (/tmp) in Unknown on
      >line 0[/color]

      The filesystem containing /tmp is full. Your system administrator should fix
      this immediately - and if they haven't noticed you ought to question what level
      of support you're getting, since a lot of things will go horribly wrong if /tmp
      is full.
      [color=blue]
      >I have not changed the code relating to the session variables in several
      >days.
      >
      >This is on a shared server. The server is a linux server running php 4.3.9
      >and Apache 1.3.31.[/color]

      It's (probably) not your fault - but check how much data you're trying to
      store in session variables. If it's a lot of data, all of this is written to
      /tmp, and would contribute to it filling up. Since it's a shared server, it
      could well be another user doing this.

      --
      Andy Hassall / <andy@andyh.co. uk> / <http://www.andyh.co.uk >
      <http://www.andyhsoftwa re.co.uk/space> Space: disk usage analysis tool

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