We also add two function for printing messages, so that scripts won't
have to import logger to get these. They are a simple extension over the
logger ones, as they accept the call style from logging:
 ToStdout("Message: %s", msg)
(instead of requiring formatting by the client.

Reviewed-by: imsnah

The gnt-instance modify didn't work correctly w.r.t the be parameters.
There was also a typo in the corresponding LU.

Reviewed-by: imsnah

All users of this code have been migrated to the new and shiny HttpServer
class.

It also fixes a typo in the ApacheLogfile unittests. It has not yet been
decided whether we should keep ApacheLogfile or not, hence leaving it in.

Reviewed-by: ultrotter

We no longer use a single, cluster-wide hypervisor, but configure the
actual to be used hypervisor on the instance level.

Reviewed-by: imsnah

Reviewed-by: iustinp

Reviewed-by: iustinp

- remove now unused osdev and swapdev arguments from backend, noded,
  rpc, cmdlib
- convert docstrings to epydoc

Reviewed-by: iustinp

Since they're not converted to API 10 yet, we temporarily disable the
import/export functions.

Reviewed-by: iustinp

Reviewed-by: iustinp

Reviewed-by: iustinp

This function calculates the basic environment for OS scripts in API
version 10.

Reviewed-by: iustinp

Reviewed-by: iustinp

Reviewed-by: iustinp

Plus update it with the real variable name

Reviewed-by: iustinp

Reviewed-by: iustinp

Reviewed-by: iustinp

Reviewed-by: imsnah

This fixes removals of the pid files and clean exit in the init script

Reviewed-by: iustinp

There is no point in initializing sigchld_handler as an empty dict, when
it will be overwritten by an instance of utils.SignalHandler
immediately after.

Reviewed-by: iustinp

This patch enables the cluster modify to change:
  - enabled hypervisor list
  - hvparams (per hypervisor)
  - beparams (only the default group)

Syntax:
  gnt-cluster modify -B vcpus=3 -H xen-pvm:no_initrd_path

Validation for parameters is somewhat missing - the individual
hypervisors will be checked for syntax and validation, but beparams
doesn't have validation yes (nowhere), it should be added here once we
have a global method (will come soon).

Reviewed-by: imsnah

Requests are no longer logged to a separate file.

Reviewed-by: amishchenko

This is just a raw update without any special formatting.

Reviewed-by: imsnah

Reviewed-by: iustinp

Currently, if loading a job fails, the job queue code raises an
exception and prevents the proper processing of the jobs in the queue.
We change this so that unparseable jobs are instead archived (if not
already).

Reviewed-by: imsnah

If we don't actually know the current master (as determined via voting),
we prevent the failover.

The patch also changes some messages (capitalization, typos).

Reviewed-by: ultrotter

In order to account for future improvements to master failover, we move
the actual data gathering capabilities from ganeti-masterd into
bootstrap.py, and we leave only the verification into masterd.

The verification procedure is then changed to retry multiple times (up
to one minute) in case most nodes do not respond, and also the algorithm
is changed to require at least half (but not half+1) votes, since our
vote also should count (and we vote for ourselves).

Example for consistent (config-wise) cluster:
  - 5 node cluster, 2 nodes down: still start
  - 4 node cluster, 2 nodes down: retry for one minute, abort

Reviewed-by: ultrotter

This adds the set/reset in the jqueue and luxi modules, and a way to
query it in OpQueryConfigValues, and also the comand line interface for
it:
$ gnt-cluster queue info
The drain flag is unset
$ gnt-cluster queue drain
$ gnt-cluster queue info
The drain flag is set
$ gnt-cluster queue undrain
$ gnt-cluster queue info
The drain flag is unset

The choice of making the setting via luxi and not an opcode is that
opcodes can't be executed when drained, but we don't query via luxi
since in the future it might become a cluster property as opposed to a
node one.

Reviewed-by: imsnah

A new multi-node call is added that sets/resets the drain flag.

Reviewed-by: imsnah

We add a (per-node) queue drain flag that blocks new job submission.
There is not yet an interface to add/remove the flag (will come in next
patches).

Reviewed-by: imsnah

This patch adds a generic method to identify the ganeti error given its
class name, and implements this across the luxi protocol.

Reviewed-by: imsnah

Currently this is not derived from GenericError, but there's no reason
for it to be so.

Reviewed-by: imsnah

Reviewed-by: ultrotter

Reviewed-by: ultrotter

The patch adds a new ‘--no-wait-for-sync’ parameter to grow-disk similar
to the one in instance add, and changes the default to wait.

This is cleaner as at the moment when the command returns, we either
have a fully synced disk or there is an error.

This is a forward-port of rev 1183 on the 1.2 branch.

Reviewed-by: ultrotter

I'm not sure which parameters it should use, I took all I saw in the
code. Update: ultrotter says the list is OK for now.

Reviewed-by: ultrotter

Change the constant name to match the value (autobalance ->
auto_balance).

Also add the auto_balance header so that gnt-instance can list it.

Reviewed-by: ultrotter

The secondary nodes should not be checked for free memory in case of non
auto-balanced instances.

This is a forward-port from rev 1567 on the 1.2 branch.

Reviewed-by: ultrotter

This patch changes the cluster verify in two ways:
  - do not use instances marked with auto_balance=False in N+1 memory
    checks
  - report, if any, the number of instances with auto_balance=False

Forward port from rev 1562 on the 1.2 branch.

Reviewed-by: ultrotter

After the locking changes, and the partial locking of nodes, the
instance/node list is not ordered anymore. Reorder so that it behaves as
before.

Reviewed-by: ultrotter

Reviewed-by: ultrotter