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root / Ganeti / HTools / IAlloc.hs @ 0a8dd21d

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# Date Author Comment
1a82215d 06/10/2009 11:29 pm Iustin Pop

Add cpu-count-related attributes to nodes

This patch adds cpu-count related attributes to nodes:
- total cpus
- cpus in use
- ratio of virtual:physical cpus

We also set correctly the cpu values at load time, but we don't do
anything yet while moving instances around. The cpu ratio is shown in...
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.
734b1ff1 06/10/2009 10:31 pm Iustin Pop

Fix reading of total disk space in iallocator

IAllocator currently uses a wrong key name for reading the total disk
space (‘disk_usage’ which was copied from RAPI, but the actual
iallocator key is ‘disk_space_total’).

This patch fixes that and also makes iallocator always use this key,...
e2fa2baf 06/01/2009 12:55 pm Iustin Pop

Add copyright/license information

This doc-patch adds copyright and license information to (hopefully) all
needed files.
19f38ee8 06/01/2009 12:18 pm Iustin Pop

Move the RqType and Request types to Loader.hs

These two will be more generic than now, and belong somewhere else -
Loader.hs is a generic module for data loading, thus we move them there.
9188aeef 06/01/2009 12:18 pm Iustin Pop

Lots of documentation updates

This patch does only doc build changes, doc changes and function move
around (for more logical documentation). It should have no impact at all
on the code.
5a1edeb6 05/27/2009 10:53 pm Iustin Pop

Add a separate function for looking up instances

Currently we (wrongly) use lookupNode to lookup instances, just because
the name assoc list has the same type. This patch adds a separate
function for it.
608efcce 05/27/2009 10:45 pm Iustin Pop

Add type synonyms for the node/instance indices

This is a first step towards full datatype renaming. That requires more
changes, so at first we only want to document clearly what is a node
index, what is an instance index, and what is a plain Int.
262a08a2 05/27/2009 02:17 am Iustin Pop

Change the module import hierarchy

This patch makes the Types module a base module, and Node/Instance ones
import it, from the previous (opposite) situation. This will allow in
the future to use newtypes for the index and name types.
1de50907 05/26/2009 12:28 pm Iustin Pop

Port offline node fixes from Rapi to IAllocator

The IAllocator source was copied from Rapi before the offline node fixes
were made. This changes such that offline nodes are accepted correctly.
bd1794b2 05/25/2009 11:47 pm Iustin Pop

Fix loading of plain instances via iallocator

Currently iallocator is broken when reading single-node instances (and
with an ugly error message). This patch fixes this case, by marking them
with secondary node “noSecondary” like the rest of the code.
8c2ebac8 05/25/2009 09:50 pm Iustin Pop

hail: do not allocate on offline/drained nodes

This patch implements filtering out of the offline/drained nodes and
fixes a bug in IAllocator.hs parsing (similar to an older bug in Rapi.hs
from where the code was copied).
ed41c179 05/25/2009 01:09 am Iustin Pop

Start implementing the hail functionality

This patch implements a very stupid (and broken) version of hail
‘allocate’.
e3a684c5 05/24/2009 02:43 am Iustin Pop

Remove ktn/kti from first half of loader

This patch removes the ktn/kti lists from most parts of the first half
of the loading sequence. Some remain as the [(String, Int)] is the
nicest way to lookup names and get indices back.
8472a321 05/24/2009 02:36 am Iustin Pop

Remove the ktn/kti from second half of loading

This removes the return of ktn/kti from Loader.mergeData and associated
functions.
b513faa1 05/24/2009 01:33 am Iustin Pop

Make IAlloc.loadData return maps

This patch makes the format of IAlloc.loadData be similar the same as
Loader.mergeData.
497e30a1 05/23/2009 03:24 am Iustin Pop

Add a small class for Nodes and Instances

Since both nodes and instances support some common functionality (names
and indices), we add a class so that we can access these attributes in a
generic way.
2727257a 05/23/2009 02:34 am Iustin Pop

Add back names to nodes/instances

In order to simplify the data structures, we add back the name on the
node and instance objects. We still keep the index for, well, indexing,
but we will use the name directly from the object, in order to get rid
of the ktn/kti arguments which are passed around everywhere.
e4c5beaf 05/23/2009 02:29 am Iustin Pop

More code reorganizations

This new big patch does a couple of more cleanups in the loading of data
chapter:
- introduce a Types module that holds most types (except the base
Node/Instance/etc.) so that multiple other modules can use these
(instead of only Cluster and its users)...
585d4420 05/22/2009 01:14 am Iustin Pop

Initial work on hail

This makes hail compile and get a request parsed via IAlloc, but nothing
more.
942403e6 05/21/2009 12:25 am Iustin Pop

Switch from hand-written monads to a real one

This big patch converts from our home-grown monad-like constructs
(the Either stuff) to a real, Either-like-but-another-name monad.

We introduce a “Result a” monad, and this allows dropping many of the
extra constructs. Hopefully the code is also more clear....
144f190b 05/21/2009 12:25 am Iustin Pop

Small changes to the IAlloc module

Adding a small request type data structure.
3f6af65c 05/19/2009 01:19 am Iustin Pop

Update the IAlloc module

We know have a working parseData function that returns the node and
instance data. This uncovered bad support for non-drbd instances ☹
9ba5c28f 05/18/2009 12:03 pm Iustin Pop

Move the JSON utilities to Utils.hs

This patch moves the generic/reusable JSON functions to Utils.hs, so
that they're shared between RAPI/IAlloc.
43643696 05/18/2009 09:46 am Iustin Pop

Add a copy of Rapi.HS as IAlloc.hs

This will be used in two ways:
- format the response to Ganeti (easy, implemented)
- parse the input data and build the node/instance lists (hard :)