Reviewed-by: imsnah

Note that many uses of logger.Error were used in 1.2 for their
side-effect of logging to stderr, where the user will see the messages,
and not for having the entry in the log. As such, we need to go over and
review every use of logging.* and decide if it should use feedback_fn
instead of being a logging call.

Reviewed-by: imsnah

Reviewed-by: imsnah

Reviewed-by: imsnah

Reviewed-by: imsnah

Reviewed-by: imsnah

Some names were wrong, and similar stuff detected by pylint.
gnt-debug.GenericOpCode is still broken.

Reviewed-by: imsnah

Currently the gnt-* scripts are using a mix of print, logger.ToStd* and
sys.stderr.write. We convert them all to using cli.ToStdout/err. This
way, we can easily change the implementation for all at once.

Reviewed-by: imsnah

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

We no longer use a single, cluster-wide hypervisor, but configure the
actual to be used hypervisor on the instance level. The option has already
been removed from gnt-cluster.

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

I broke it with rev 1864. This patch also removes whitespace at
line endings.

Reviewed-by: amishchenko

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

In rst a final _ is used for linking. Escaping it prevents an error at
compile time on design-2.0-cluster-parameters.rst

Reviewed-by: iustinp

This is just a raw update without any special formatting.

Reviewed-by: imsnah

Reviewed-by: iustinp

Internally in ganeti we already have renamed the instance, so it's
better to pass the new name in INSTANCE_NAME and the old one in
OLD_INSTANCE_NAME rather than the old name in INSTANCE_NAME and the new
one in NEW_INSTANCE_NAME as this reflects what the cluster thinks.

Reviewed-by: iustinp

So, instead of any timeouts for synchronization, we move to actual
events. We still have one (huge) timeout for pathological cases (just to
cleanup), but we don't sleep at all in normal usage.

The patch moves the zombie/cleaned up child creation out from setUp(),
and to on-demand by the functions. We remove all signal handler usage,
instead we rely on the fact that when a process is cleaned up, its FDs
are closed, so the read end of a pipe will get an event.

Reviewed-by: imsnah

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

Update the design about cluster parameters and provide
some example of backend parameters. By now this includes
all supported parameters.

Reviewed-by: iustinp, ultrotter