Synnefo » snf-ganeti » ganeti-local

Text.hs: serialize cluster tags when writing data

This is the complement to the reading part. Now the live-test works
correctly against clusters with configured exclusion tags.

Signed-off-by: Iustin Pop <iustin@google.com>
Reviewed-by: Balazs Lecz <leczb@google.com>

Rework the types used during data loading

This improves on the previous change. Currently, the node and instance
lists shipped around during data loading are (again) association lists.
For instances it's not a big issue, but the node list is rewritten
continuously while we assign instances to nodes, and that is very slow....

Move text serialization functions to Text.hs

Currently these are in hscan, and cannot be reused easily.

Stop modifying names for internal computations

Currently the name used internally is modified and holds the shortened
name of the nodes/instances. This has caused issues before, since we
always have to strip the suffix from input data and reapply it if we...

Fix unused-do-binds for ghc 6.12

GHC 6.12 has some new warnings, which are valid in most cases except
(IMHO) printf usage.

hscan: implement LUXI backend scanning

This allows hscan to work also with NO_CURL (but only for the local
machine, of course).

Update hscan to generate new-format text files

This also updates its manpage, some information were really old.

Add a command-line option to filter exclusion tags

Since we don't want all instance tags to be used for exclusion, we add a
command line option to filter on these. Since the iallocator protocol
cannot accept command line options, currently it's not possible to...

Allow overriding the field list in -p

The print nodes option can now accept an optional field list to
customise the output. This is ugly, since the field names do not match
the header names, but it is at least barely customisable (at runtime).

Style change: node and instance attributes

This changes from a_b to aB in all node and instance attributes, to
match the standard Haskell style. Also attributes that should have been
camel-cased but weren't were changed (e.g. plist → pList, pnode →
pNode).

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...

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).

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.

Remove most uses of ktn/kti

This patch removes all uses of ktn/kti from the past-loader stages.

Move checkData from Cluster to Loader

This moves the remaining loading function to Loader (together with its
associated support functions).

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)...

Convert Cluster.loadData to Result return

This patch changes Cluster.loadData to return a Result, instead of
directly the values; this will allow us to return meaningful error
values (e.g. when an instances lives on unknown node) rather than simply
abort. Currently the result is always an Ok, the actual signalling of...

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....

Fix interaction between down instances and nodes

If an instance is down, it's memory is not reflected in the node used
memory, and thus the node free memory is higher than the actual value.
This patch deducts the memory for such instances from the node free...

Show the x_mem/i_mem in node list

This patch adds checking of cluster data in the binaries and display of
node's x_mem/i_mem in the node list.

Add node memory field to Node objects

This patch adds a new n_mem field to the node objects, and implements
read/save/show support for it. The field is not currently used (except
in the node list) but will be used for checking data consistency and
instance up/down status.

Add the hscan tool

This patch adds an hscan tool that loads data from clusters via RAPI and
writes it to files that can be later used offline.