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# Date Author Comment
e8f89bb6 09/28/2009 03:50 pm Iustin Pop

Split the exernal data loader out of CLI.hs

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...

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.

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

8e445e6d 07/14/2009 04:06 pm Iustin Pop

Add support for luxi backend in CLI/hspace/hbal

This patch changes the backend selection method in CLI to prefer, in order:
- a RAPI specification
- a Luxi specification
- and finally the node/instance files

It also modifies hspace and hbal to provide a ‘-L’ command line option...

31e7ac17 07/09/2009 04:16 pm Iustin Pop

hspace: fix failure handling of tryAlloc results

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...

478df686 07/09/2009 03:44 pm Iustin Pop

Change the tryAlloc/tryReloc workflow

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...

8880d889 07/08/2009 07:38 pm Iustin Pop

Slight change to the internal allocation results

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...

2bbf77cc 07/08/2009 05:34 pm Iustin Pop

hspace: switch output to shell-script format

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.

de4ac2c2 07/08/2009 12:49 pm Iustin Pop

hspace: move instance count and score into CStats

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...

8c4c6a8a 07/07/2009 12:56 pm Iustin Pop

Export more stats in hspace

This patch changes Cluster.totalResources to compute more resources and
prints them in hspace.

2795466b 07/07/2009 12:20 pm Iustin Pop

Show errors on stderr instead of stdout

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.

dca7f396 07/07/2009 10:55 am Iustin Pop

hspace: convert N1 error exit into FailN1 result

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....

58631b72 07/07/2009 10:55 am Iustin Pop

Some docstring updates

7e74e7db 07/07/2009 10:54 am Iustin Pop

hspace: add display of instance spec

This is mostly for user-friendliness in the default mode, when we don't
specify the instance parameters.

9f6dcdea 07/06/2009 11:50 pm Iustin Pop

Fix hlint-generated warnings

This big patch cleans up the code per hlint indications. Many removals
of extra parentheses, replacements of concat . map with concabtMap,
extra dollar signs, eta reductions, etc. were performed.

The code still compiles and passes a couple of manual tests on sample...

44763b51 07/05/2009 06:56 pm Iustin Pop

Add computation of the failure reason in hspace

This patch enhances hspace to report why the allocation sequence
stopped, both in absolute error count and for the top reason.

f2280553 07/05/2009 03:53 pm Iustin Pop

Introduce a new type for allocation results

Currently the allocation/move operations workflow return ‘Maybe a’,
which is very convenient but loses all details about the failure mode.

This patch introduces a new data type which encodes the specific failure...

78ecfa8f 07/03/2009 10:40 pm Iustin Pop

Display two more stats in hspace

This adds two new stats - sum of reserved ram and disk.

301789f4 07/03/2009 10:01 pm Iustin Pop

Fix totalResources avail disk computation

This uses the newly-added Node.availDisk to compute the actual available
disk correctl, and display the total allocatable disk in hspace.

1a7eff0e 07/03/2009 12:50 am Iustin Pop

Add a new type for cluster statistics

Currently totalResources returns a 5-tuple of integers. This is not easy
to handle, as each change on the return type means that each caller must
be updated.

This patch adds a new type for cluster stats and uses that instead as...

621de5b7 07/02/2009 01:43 pm Iustin Pop

Enhance hspace resource display

The display of cluster resources is extracted into a separate function
and enhanced to display more stats.

e2af3156 07/02/2009 01:33 pm Iustin Pop

Add display of more stats in hspace

This patch changes Cluster.totalResources to compute more details about
the cluster status, and enhances hspace to display more of these.

877d0386 06/13/2009 01:33 am Iustin Pop

Some documentation updates for the new parameters

83a91400 06/13/2009 01:32 am Iustin Pop

Add setting of node limits in hspace

c6484f0b 06/12/2009 02:29 am Iustin Pop

Fix 'unused X' warnings

This removes some unused functions and imports to cleanup the warnings.

78694255 06/12/2009 02:22 am Iustin Pop

Fix the various monomorphism warning

In a few places (e.g. tryRead or any printf call) it's a little bit hard
to add the correct type signatures, but in the it is possible to fix
these warnings (which can bite one in subtle cases).

d752eb39 06/10/2009 10:42 pm Iustin Pop

Add a new vcpus attribute to instances

This patch adds reading of vcpu count for instances, in preparation for
using the vcpu ratio in cluster scoring.

9abe9caf 06/01/2009 05:21 pm Iustin Pop

Fix hspace with plain type instances

This also fixes other required node numbers.

9dcec001 06/01/2009 04:48 pm Iustin Pop

Rework the tryAlloc/tryReloc functions

Currently tryAlloc/tryReloc do not return the new instance, as this is
not needed for IAllocator alloc/reloc requests. However, for computing
the space, the new instance is useful, so we modify these functions to
return this information too....

e10be8f2 06/01/2009 02:59 pm Iustin Pop

Initial add of the hspace tool

This is a tool that checks how many instances (of same size, specified
by command line arguments) can be added to a cluster while remaining N+1
compliant.