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# Date Author Comment
f25e5aac 08/30/2009 06:55 pm Iustin Pop

Split the balancing algorithm in two parts

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...
c0501c69 08/26/2009 11:07 am Iustin Pop

Implement support for 'cheap' moves only

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.
633e6bcb 08/26/2009 10:45 am Iustin Pop

Simplify the wrapIO function

This fixes one warning from hlint.
c9926b22 08/26/2009 10:40 am Iustin Pop

Use migrate or failover based on instance state

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....
f723de38 08/19/2009 02:03 pm Iustin Pop

Improve the error message for command line errors

Instead of using ioError . userError, we format the error ourselves.
This is nicer - no ‘)’ at the end of the output.
b2278348 08/18/2009 07:11 pm Iustin Pop

Add a simulated cluster data loader

This is useful especially for hspace, where we might want to simulate a
hypothetical cluster to check allocation beforehand.
175cc337 07/15/2009 08:22 pm Iustin Pop

CLI: Handle error better

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.
0427285d 07/15/2009 11:31 am Iustin Pop

Unify the command line options and structures

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.
2485487d 07/14/2009 05:15 pm Iustin Pop

Fix a few hlint errors
26d47cf5 07/14/2009 05:00 pm Iustin Pop

CLI: Prevent incompatible options to be selected

This patch makes CLI abort if more than one backend is selected.

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