1. 20 Jun, 2008 1 commit
    • Iustin Pop's avatar
      Add a rpc call for BlockDev.Close() · d61cbe76
      Iustin Pop authored
      This patch adds rpc layer calls (in rpc.py and the equivalent in
      ganeti-noded) to close a list of block devices, and the wrapper in
      backend.py that takes a list of Disk objects, identifies them and
      returns correctly formatted results.
      
      The reason why this very basic call was missing until now from the rpc
      layer is that we usually don't care about device closes (though we
      should, and will do so in the future) as only drbd has a meaningful
      Close() operation; right now we directly do Shutdown().
      
      The patch is clean enough that it's actually independent of the live
      migration implementation.
      
      Reviewed-by: imsnah
      d61cbe76
  2. 17 Jun, 2008 1 commit
    • Iustin Pop's avatar
      Implement block device grow at the rpc layer · 4c8ba8b3
      Iustin Pop authored
      This simple patch exposes the block device grow operation at the rpc
      layer. It does not increase the protocol version as it has been recently
      changed by the live failover rpc call.
      
      Reviewed-by: imsnah
      4c8ba8b3
  3. 16 Jun, 2008 1 commit
    • Iustin Pop's avatar
      Add migration support at the rpc layer · 2a10865c
      Iustin Pop authored
      This patch adds the migration rpc call and its implementation in the
      backend. The patch does not deal with the correct activation of disks.
      
      Because of the new RPC, the protocol version is increased.
      
      Reviewed-by: imsnah
      2a10865c
  4. 13 Jun, 2008 1 commit
  5. 28 Apr, 2008 1 commit
    • Iustin Pop's avatar
      Move iallocator script execution to ganeti-noded · 8d528b7c
      Iustin Pop authored
      Currently the iallocator execution takes place in the master, which is a
      violation of the current architecture, and will create problems with a
      threaded master daemon.
      
      This patch moves the execution to the backend, similar to the hooks
      runner, by:
        - introducing a new class that handles the execution in the backend
          (and could be used also for listing the allocators, etc.)
        - introducing a new rpc call
        - replacing the actual execution in IAllocator.Run() with a rpc call
      
      This passes burnin with the dumb allocator
      
      Reviewed-by: imsnah
      8d528b7c
  6. 05 Apr, 2008 1 commit
  7. 04 Apr, 2008 1 commit
    • Iustin Pop's avatar
      Move the daemonize function to utils.py · 8f765069
      Iustin Pop authored
      Currently, in ganeti-noded we have the createDaemon function. Since
      we'll need the same in other daemons, we move this function to utils.py
      
      With the move, a few changes were also done:
        - change the name to Daemonize()
        - add a parameter, logfile, as different daemons will want to log to
          different files
        - remove the try.. except.. around the fork calls, since they were
          only re-raising the OS exception with less data; unless we want to
          actually handle fork error (not just re-raising), these try blocks
          are not useful
        - change the return style at the end of the function
      
      Reviewed-by: imsnah
      8f765069
  8. 27 Mar, 2008 1 commit
  9. 19 Mar, 2008 1 commit
    • Iustin Pop's avatar
      Make ganeti-noded create BDEV_CACHE_DIR automatically · 0214b0c0
      Iustin Pop authored
      Currently in order to deal with tmpfs /var/run, we create the
      BDEV_CACHE_DIR in the init script. However, that does not cover all the
      cases, and it's not a proper place to deal with it: for example, dealing
      with not initialized clusters and the master node is more complicated.
      
      Therefore, this patch does:
        - make ganeti-noded create the directory automatically
        - make ganeti-noded error out if it can't create it or it's already
          there but not a directory
        - remove the creation from the init.d script
      
      Reviewed-by: ultrotter
      0214b0c0
  10. 11 Mar, 2008 1 commit
    • Iustin Pop's avatar
      Modify utils.TcpPing to make source address optional · b15d625f
      Iustin Pop authored
      This patch modifies TcpPing and its callers to make the source address
      selection optional. Usually, the kernel will know better what
      source address to use, just in some cases we want to enforce a given
      source address so it makes sense to make this optional.
      
      Reviewed-by: ultrotter
      b15d625f
  11. 22 Feb, 2008 1 commit
    • Iustin Pop's avatar
      Break trunk by removing twisted · 81010134
      Iustin Pop authored
      This patch switches from the twisted usage for inter-node protocol to
      simple BaseHTTPServer/httplib. The patch has more deletions because we
      use no authentication, no encryption at all.
      
      As such, this is just for trunk, and only for testing. What it brings is
      the ability to use the rpc library from within multiple threads in
      parallel (or it should so).
      
      Since the changes are very few and non-intrusive, they can be reverted
      without impacting the rest of the code.
      
      This passes burnin. QA was not tested.
      
      Reviewed-by: imsnah
      81010134
  12. 05 Feb, 2008 1 commit
  13. 29 Nov, 2007 1 commit
  14. 05 Nov, 2007 2 commits
    • Guido Trotter's avatar
      Convert os_get to use OS rather than InvalidOS · dfa96ded
      Guido Trotter authored
      In order to do this for simplicity we leave the OSFromDisk function as-is and
      we convert the eventual exception to an OS object in ganeti-noded. The
      unmangling gets simplified and so does the code for checking whether the OS is
      valid.
      
      Reviewed-By: iustinp
      
      dfa96ded
    • Guido Trotter's avatar
      Simplify diagnose mangling/unmangling functions · 4e679f11
      Guido Trotter authored
      The functions in ganeti-noded and rpc.py still deal with the fact that an
      InvalidOS error could be returned by DiagnoseOS. As this is not the case
      anymore simplify their code for the current behavior.
      
      Reviewed-By: iustinp
      
      4e679f11
  15. 02 Nov, 2007 1 commit
    • Iustin Pop's avatar
      Implement device to instance mapping cache · 3f78eef2
      Iustin Pop authored
      Currently, troubleshooting DRBD problems involves a manual process of going
      backwards from the DRBD device to the instance that owns it.
      
      This patch adds a weak (i.e. not guaranteed to be correct or up-to-date)
      cache of device to instance. The cache should be, in normal operation,
      having correct information as the only time when devices change paths
      are when they are started/stopped, and the code in backend.py adds cache
      updates to exactly these operations.
      
      The only drawback of this implementation is that we don't fully update
      the cache on renames of devices (we clean the old entries but we don't
      add new ones). Since the rename changes the path only for LVs (and not
      drbd and md), this is less of a problem as the target of this code is
      debugging DRBD and MD issues.
      
      The patch writes files named bdev_drbd<N> (or bdev_md<N>,
      bdev_xenvg_...) in /var/run/ganeti (more exactly, LOCALSTATEDIR/ganeti).
      The files start with 'bdev_' and continue with the path of the device
      under /dev/ (this prefix stripped), and contain the following values,
      space separated:
        - instance name
        - primary or secondary (depending on how the device is on the primary
          or secondary node)
        - instance visible name: sda or sdb or not_visible, the latter case
          when the device is not the top-level device (i.e. remote_raid1
          templates will have sd[ab] for the md, but not_visible for drbd and
          logical volumes)
      
      The cache is designed to not raise any errors, if there is an I/O error
      it will only be logged in the node daemon log file. This is in order to
      reduce the possible impact of the cache on the block device activation
      and shutdown code.
      
      Reviewed-by: imsnah
      3f78eef2
  16. 29 Oct, 2007 1 commit
    • Iustin Pop's avatar
      Implement block device renaming · f3e513ad
      Iustin Pop authored
      This patch add code for renaming a device; more precisely, for changing
      the unique_id of the device. This means:
        - logical volumes, rename the volume
        - drbd8, change the remote peer
      
      This is needed for the being able to replace disks for drbd8.
      
      Reviewed-by: imsnah
      f3e513ad
  17. 25 Oct, 2007 1 commit
    • Iustin Pop's avatar
      Modify two mirror-device related rpc calls · 153d9724
      Iustin Pop authored
      The two calls mirror_addchild and mirror_removechild take only one child
      for addition/removal. While this is enough for our md usage, for local
      disk replacement in drbd8, we need to be able to specify both the data
      and metadata device. This patch modifies these two rpc calls (and their
      backend implementation and their usage in cmdlib) to take a list of
      children to add/remove.
      
      Reviewed-by: imsnah
      153d9724
  18. 17 Oct, 2007 1 commit
    • Alexander Schreiber's avatar
      Patch series for reboot feature, part 1 · 007a2f3e
      Alexander Schreiber authored
      This patch series implements the reboot command for gnt-instance. It
      supports three types of reboot: soft (hypervisor reboot), hard (instance
      config rebuild and reboot) and full (full instance shutdown and startup
      again).
      
      This patch contains the backend and rpc part of the patch.
      
      
      Reviewed-by: iustinp
      
      007a2f3e
  19. 15 Oct, 2007 1 commit
    • Iustin Pop's avatar
      Fix node daemon log file permissions · b50f022f
      Iustin Pop authored
      The creation of the log file for the node daemon lacks the mode
      parameter, so after applying the current umask, the file got 0700
      permissions. Restrict this to the correct 0600.
      
      Reviewed-by: schreiberal
      b50f022f
  20. 10 Oct, 2007 1 commit
    • Alexander Schreiber's avatar
      Remove fping as a dependency for Ganeti. · 16abfbc2
      Alexander Schreiber authored
      This patch completely  gets rid of fping
       - replace all fping invocations with TcpPing calls
       - update documentation accordingly.
       - associated cleanups (use constant for localhost IP, use more sensible
         defaults for TcpPing and _use_ those)
      
      Reviewed-by: iustinp
      
      16abfbc2
  21. 04 Oct, 2007 1 commit
    • Michael Hanselmann's avatar
      Change configuration storage format from Pickle to JSON. · 319856a9
      Michael Hanselmann authored
      - Add NEWS file with major changes between versions.
      - Bump RPC version number
      - No longer serialize in RPC, but just convert to dict
      
      Old Pickle based configuration files can be converted using the cfgupgrade
      utility.
      
      Reviewed-by: iustinp, ultrotter
      
      319856a9
  22. 17 Sep, 2007 1 commit
  23. 14 Aug, 2007 1 commit
    • Iustin Pop's avatar
      Style changes for pep-8 and python-3000 compliance. · 3ecf6786
      Iustin Pop authored
      This changes the raising of exceptions from:
        raise Exception, value
      to
        raise Exception(value)
      
      as the first form will be removed in python-3000 and the second form is
      preferred now.
      
      The changes also involve a few cases of changing from raising standard
      exceptions and use our own ones.
      
      The new version also fixes many pylint-generated warnings, especially in
      ganeti-noded where I changed many methods to @staticmethod.
      
      There is no functionality changed (barring any bugs).
      3ecf6786
  24. 03 Aug, 2007 1 commit
  25. 26 Jul, 2007 1 commit
  26. 25 Jul, 2007 1 commit
  27. 24 Jul, 2007 2 commits
  28. 18 Jul, 2007 1 commit
  29. 16 Jul, 2007 1 commit