1. 09 Mar, 2009 3 commits
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      hbal: allow, but warn on, N+1 failed clusters · d6109e64
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      Based on the node changes, we remove the N+1 check and only show a
      warning instead.
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      Change the node N+1 check model · d10b27ef
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      Currently, we fail a new instance placement if the new node status is
      not N+1 compliant. This means that an allocation on an already N+1
      failed node still fails, even though (conceptually) we're not worse than
      This patch changes this model to fail the allocation *only* if the node
      was N+1 compliant before. This allows balancing to work on non-N+1 happy
      clusters, with the caveat that they probably won't be N+1 happy at the
      Since we skip N+1 check in some cases, we add a new “failHealth” check
      that verifies the node still has strict positive free memory and disk
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      Show which nodes are not N+1 compliant in output · 2cf878a5
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      This patch adds a '*' character to nodes which are not N+1 compliant to
      the output, to help with understanding pre- and post-changes cluster
  2. 22 Feb, 2009 4 commits
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      Don't build documentation for the Main modules · 8df5db55
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      This fixes the doc issue which exists since the addition of hbal. Now
      make doc makes sense again.
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      Change the total disk/mem to Double · 38f63ae6
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      Since we only use the totals for computations, and we always convert
      them via fromIntegral, let's just store them directly as Doubles.
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      A no-code change s/disk/dsk/ · 962367fe
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      This just makes indendation nicer in many expressions.
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      Compute the p_mem / p_dsk statically · 0335fe4a
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      This patch changes the computation of p_mem / p_dsk from on-demand
      (whenever the cluster stats are computed) to after-modify (after a node
      is modified, we update its stats). This brings a god speed-up as only
      one node or two are usually changed between cluster-wide stats are
  3. 15 Feb, 2009 7 commits
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      Documentation updates · d53264c0
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      Simplify the checkInstanceMove function · 9dc6023f
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      This patch flattens the two folds into one, by simply building the whole
      list of moves instead  of the double recursion (nodes and the each
      node's moves). This has no functional change, but it's much cleaner.
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      A small optimization in node computation · 256810de
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      Currently we always compute the available node list for moves (for an
      instances) based on the nodes of the initial table. This works find,
      however is a repeated calculation.
      We optimize this by passing a node list (of indexes, not full objects),
      which helps in two ways:
        - faster to filter later
        - allows restriction of target nodes by enforcing only this subset as
          target for moves
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      Container: add a 'keys' function · 1fd47ca2
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      Replace a foldl by foldl' · d4f62d4e
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      Split checkMove into two · 4e25d1c2
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      This cleans up and splits the individual instance move into a separate function.
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      Change the balancing algorithm · aaaa0e43
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      This patch changes the balancing algorithm to not iterate linearly over
      the instances (in a random, but fixed order), instead selecting at each
      step the best next move. This should allow a better score (most of the
      time), and usually also a shorter solution.
  4. 14 Feb, 2009 4 commits
  5. 13 Feb, 2009 4 commits
  6. 12 Feb, 2009 2 commits
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      Make RAPI return the same data format as gnt-* · b8b9a53c
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      This patch changes the RAPI endpoint return the same data format as the
      input files. This will allow using it instead of the files.
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      Change the input file formats · 01f6a5d2
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      This patch changes the format of the input node and instance lists. It
      removes the list of primary and secondary instances from the nodes, and
      adds the primary and secondary nodes to the instance list.
      This is done so that we can have the same input data from commands as
      from the RAPI.
  7. 11 Feb, 2009 1 commit
  8. 28 Jan, 2009 1 commit