1. 28 Sep, 2009 4 commits
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      Turn on, and fix, more warnings · fbb95f28
      Iustin Pop authored
      The Makefile was intented to be -Wall and not simply -W, but I missed
      that. This enables more warnings and also enables -Werror (except for
      the tests).
      fbb95f28
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      Brown bag fix: invert a test · 685f5bc6
      Iustin Pop authored
      During testing I used the test inversely to see it triggers correctly,
      and committed by mistake the inverted test. Fixing it.
      685f5bc6
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      Add support for building without curl · 45ab6a8d
      Iustin Pop authored
      Since curl is not always needed (e.g. when only using luxi or less
      likely file backends only) and is also not always available, it is
      useful for building without it. This of course disabled the RAPI
      backend.
      
      This patch changes ExtLoader to build with the ‘-cpp’ option which makes
      ghc run it through cpp first; and based on whether ‘NO_CURL’ is defined
      or not, this toggles RAPI/curl inclusion. The patch also removes the
      import of Rapi in QC.hs since it's not actually used in tests.
      
      Invoking make as ‘make HEXTRA=-DNO_CURL’ is enough to trigger the new
      build mode.
      45ab6a8d
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      Split the exernal data loader out of CLI.hs · e8f89bb6
      Iustin Pop authored
      Currently the external data loader is in CLI.hs, which makes all
      programs that need cli functionality (options, etc.) link against the
      network modules (most importantly curl). This patch splits this
      functionality into a new module such that (for example) hail which only
      deals with file I/O doesn't link against these libraries.
      e8f89bb6
  2. 02 Sep, 2009 1 commit
  3. 31 Aug, 2009 2 commits
  4. 30 Aug, 2009 1 commit
    • Iustin Pop's avatar
      Split the balancing algorithm in two parts · f25e5aac
      Iustin Pop authored
      Currently the computation, recursing part and the IO part (progress
      updates) of the balancing main function (iterateDepth) are all in the
      same function, which makes it hard to test. This patch moves the
      decision/computation part (whether to proceed one more round, whether we
      got a good result, etc.) into Cluster.hs, and leaves only the iteration
      and screen update in hbal.hs.
      f25e5aac
  5. 26 Aug, 2009 3 commits
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      Implement support for 'cheap' moves only · c0501c69
      Iustin Pop authored
      This patch adds support for cheap (failover/migrate) operations only in
      the balancing algorithm and in the hbal command line options.
      
      This allows a very quick balancing (compared to allowing replace-disks)
      which can be useful as a scheduled operation.
      c0501c69
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      Simplify the wrapIO function · 633e6bcb
      Iustin Pop authored
      This fixes one warning from hlint.
      633e6bcb
    • Iustin Pop's avatar
      Use migrate or failover based on instance state · c9926b22
      Iustin Pop authored
      While we can't guarantee that the instance will be in the same state by
      the time the migrate/failover command will be run, we can at least try
      to do the right thing assuming no other changes to the cluster state.
      
      Of course, the right fix would be for Ganeti to accept a
      migrate-or-failover opcode that atomically does the move…
      c9926b22
  6. 19 Aug, 2009 2 commits
  7. 18 Aug, 2009 1 commit
  8. 28 Jul, 2009 1 commit
  9. 15 Jul, 2009 2 commits
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      CLI: Handle error better · 175cc337
      Iustin Pop authored
      This patch adds an error handler for any exceptions that are raised
      during the external data load phase. This can be improved further, but
      it's a good start.
      175cc337
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      Unify the command line options and structures · 0427285d
      Iustin Pop authored
      This patch moves all the command line options and their internal
      representation into CLI.hs. This means that duplicated options between
      any two binaries are no longer declared twice, and that we no longer
      need the two *Option classes.
      0427285d
  10. 14 Jul, 2009 8 commits
  11. 09 Jul, 2009 4 commits
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      Update NEWS file for the 0.1.5 release · d8de9112
      Iustin Pop authored
      This is basically a hspace release, so the changelog is small.
      d8de9112
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      Fix a haddoc issue · 7d11799b
      Iustin Pop authored
      7d11799b
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      hspace: fix failure handling of tryAlloc results · 31e7ac17
      Iustin Pop authored
      Currently hspace doesn't handle failures from tryAlloc correctly; this
      patch changes the iterateDepth function in hspace to return a Result (…)
      so that errors can be propagated correctly.
      
      The patch also changes one output key to be more clear and a typo in
      Cluster.hs
      31e7ac17
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      Change the tryAlloc/tryReloc workflow · 478df686
      Iustin Pop authored
      Currently, the tryAlloc and tryReloc function return a list with all the
      results, both failures and successes. This is fine for hail, which does
      one round of allocations, but is not so good for hspace, which does
      iterative rounds; since at each (successful) step we only take the best
      solution, it means that we're using lots of heap space to compute and
      store node lists which are thrown away at the end of the step.
      
      This patch changes these two functions and their callers in hail/hspace
      to only return the best solution, and error/success counters. This
      allows hspace to run in a much smaller space, and reduces GC cost
      greatly.
      
      Overall, it is a cleanup, as hail/hspace did a lot of work to chose this
      best solution, whereas now it's automatically promoted within
      Cluster.concatAllocs.
      478df686
  12. 08 Jul, 2009 5 commits
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      Simplify the Cluster.tryAlloc structures · 685935f7
      Iustin Pop authored
      Currently the tryAlloc function calls the
      allocateOnSingle/allocateOnPair and the builds a new tuple with those
      functions's result plus the new node list. This is however suboptimal
      in two respects:
        - the new nodes added are the 'old' versions of the respective nodes,
          so even though we don't use more than their names, it's logically
          broken
        - we do an extra unpack/repack of the result, while we could simply
          pass it through if allocateOnX returned the correct result
      
      This patch makes the allocateOnX functions return the node list too and
      also removes them and applyMove from the export list, as these are only
      used within Cluster.hs.
      685935f7
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      Slight change to the internal allocation results · 8880d889
      Iustin Pop authored
      Currently the Cluster.AllocSolution type is defined as a list of
      ‘(OpResult Node.list, …)’ and the results for applyMove are defined as
      ‘(OpResult Node.List, …)’. Both these means that the failure/success
      indication is hidden in the first elements of this tuple, which makes is
      harder to add other elements depending on the success/failure (like the
      score for the new node list).
      
      This patch moves the OpResult to outside of the tuple, in effect making
      all these ‘OpResult (…)’ which makes the internal tuple elements
      consistent. The patch is affecting the applyMove, tryAlloc and
      tryRealloc functions, and only briefly the hail and hspace programs.
      8880d889
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      Add a 'tags' makefile target · 9ea446d2
      Iustin Pop authored
      This uses hasktags for building emacs TAGS.
      9ea446d2
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      hspace: switch output to shell-script format · 2bbf77cc
      Iustin Pop authored
      This (big) patch changes the output of hspace from text-format
      (separated by ‘: ’) to a shell-snippet, in ‘key=value’ format.
      
      This will allow sourcing the output or parsing it via awk/sed/etc.
      2bbf77cc
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      hspace: move instance count and score into CStats · de4ac2c2
      Iustin Pop authored
      Currently the instance count and cluster score are separated from the
      other initial/final phase stats, even though they are very similar. This
      patch moves computation of these two into totalResources/CStats and
      removes special printing in hspace.
      de4ac2c2
  13. 07 Jul, 2009 6 commits
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      Fix unittests · 79a72ce7
      Iustin Pop authored
      The recent OpResult and CPU values additions broke unittests.
      79a72ce7
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      Export more stats in hspace · 8c4c6a8a
      Iustin Pop authored
      This patch changes Cluster.totalResources to compute more resources and
      prints them in hspace.
      8c4c6a8a
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      Show errors on stderr instead of stdout · 2795466b
      Iustin Pop authored
      Currently many of the exit and warning conditions mistakenly display error
      messages on stdout, which makes parsing the output of programs harder. This
      patch attempts to fix such occurrences.
      2795466b
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      Fix score calculation to work with empty clusters · 16103319
      Iustin Pop authored
      Currently the cluster score calculation includes an offline instance
      percentage, expressed as “offline inst / (offline + online inst)”, which
      results in NaN for empty clusters. This patch changes the calculation
      such that clusters with no offline instances (this criteria includes
      completely empty clusters) get a score of zero on this component of the
      total score.
      16103319
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      hspace: convert N1 error exit into FailN1 result · dca7f396
      Iustin Pop authored
      Currently hspace exits with an error if the cluster is not N+1 compliant
      at the beginning of the run. This patch changes hspace such that this
      condition is instead treated as a zero-allocation-possible, FailN1 mode.
      This allows the same stats to be reported in this case as in the normal
      case.
      dca7f396
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      Some docstring updates · 58631b72
      Iustin Pop authored
      58631b72