Synnefo » snf-ganeti » ganeti-local

hypervisor: add live migration support

This is just the hypervisor-level migration (e.g. “xm migrate”) not the
whole node coordination work.

Reviewed-by: ultrotter

FailoverInstance: change AddInstance with Update

We're not adding a new instance, just making configuration changes to
the one we're working on.

Reviewed-by: imsnah

Fix an error message in instance add

There is a mistake in the error message generated when we can't reach a
node for checking for available disk space. Without it, the error
message is:
Failure: prerequisites not met for this operation:
Cannot get current information from node '{u'gnte2.lab.k1024.org':...

Replace logging functions with calls to logging module

- Shorter code
- Reorder arguments to logger.SetupLogging calls to make more sense

Reviewed-by: iustinp

Fix a typo in jqueue.py

s/result/op_result/ (this code was never used, so this wasn't caught)

Reviewed-by: iustinp

Move InitCluster opcode into a single function

This allows us to initialize a new cluster. The code certainly contains
bugs and hooks aren't implemented yet.

Reviewed-by: iustinp

Move {Set,Remove}EtcHostsEntry wrappers to utils.py

This is required for the split of the cluster initialization code.

Reviewed-by: iustinp, ultrotter

Remove unreachable code from cli.SubmitOpCode

Reviewed-by: iustinp

Remove SimpleStore cache

SimpleStore is instantiated anew most of the times it's used, so having
a cache inside it serves no purpose. Removing it.

Reviewed-by: iustinp

Forward-port: Add QA tests for “gnt-instance reboot”

Reviewed-by: ultrotter

Forward-port: Update gnt-instance and gnt-backup manpages

- Add --iallocator options
- Small text fixes

Reviewed-by: ultrotter

Forward-port: Small codestyle fixes for dumb-allocator

Reviewed-by: iustinp

Forward-port: Alias Dump/Load functions in ganeti.serializer to DumpJson/LoadJson

The remote API will use JSON for the foreseable future, so it's better
to put the serialization format in the function name. We can still
use another serialization format for Ganeti's core....

Add check for node memory in instance creation

Currently the check for enough memory is done only on instance start
command and failover command. But we also start an instance in instance
create, therefore we need to check this instead of failing to start in...

Forward-port: Another for gnt-instance modify & HVM parameters

Another tiny fix. Anybody got a nice brown paper bag I can wear?

Author: schreiberal
Reviewed-by: iustinp

Forward-port: show only parameters relevant to the instance

This patch modifies the code for "gnt-instance info .." to only display
instance parameters that actually apply to that instance, i.e. for PVM
instances no HVM parameters are shown and vice versa....

Forward-port: patch 3/4 extended HVM features for 1.2

This patch adds hypervisor support for the extended HVM features.

Author: schreiberal
Reviewed-by: iustinp

Complete removal of md/drbd 0.7 code

This patch removes the last of the md and drbd 0.7 code. Cluster which
have the old device types will be broken if they have this applied.

Reviewed-by: imsnah

Documentation: cleanup of local/remote_raid1

Since we have removed support for local and remote raid1, update the man
pages and guides to reflect the new situation.

Reviewed-by: imsnah

Update command line help and manpages with mandatory options

Reviewed-by: ultrotter

Fix drbd show parser to handle valueless keywords

It turns out in some cases there can exist keywords without an
associated value exported by drbdsetup show. This patch makes the value
part optional in our parser, so that if it's not present the parsing
result will contain an array with just the keyword in it. This is not a...

Small style fixes

[Trunk version]

Reviwed-by: imsnah

Forward-port changes made to readd in 1.2

qa_node.py: Fix typo in message
cmdlib.py: Don't add readded node to node list
ganeti-qa.py: Make sure readd isn't done for master node

Reviewed-by: iustinp

Revert "CLI: remove command opts/args in "gnt-X""

This reverts commit 976.

Reviewed-by: ultrotter

Watcher: do not activate disks for started instances

Currently the watcher runs first the instance startup and then the
boot-id method of disk reactivation. However, irrelevant of the fact
that a node has rebooted or not, if we just started an instance, there's...

Reduce chance of ssh failures in verify cluster

The cluster verify builds a sorted list of nodes and passes that to all
the nodes (in parallel) for ssh checks. This means that for a cluster
with N nodes, there will be approximately N simultaneous connections to...

DRBD: Fix another bug in diskless activation

DRBD8 requires that we pass ‘--create-device’ to the first command that
wants to activate a new DRBD minor. We do this currently when we run the
“drbdsetup ... disk” command which we run before the network setup....

Improve DRBD8.Open's docstring a bit more

Reviewed-by: iustinp

Fix DRBD8 diskless assembling

The algorithm for attaching to existing DRBD devices is not trivial. It
has four alternatives, and there is a bug in the last one when we have
diskless devices.

The last case (local disk info matches but remote/network configuration...

Use new ssconf function to check configuration version

Upgrades will be handled in future patches.

Reviewed-by: iustinp

Rename hypervisor code to lowercase filenames

Reviewed-by: iustinp

Export the number of cpus to iallocator scripts

Now that we have the number of cpus available from the hypervisors, we
can export this to the iallocator scripts.

Reviewed-by: ultrotter

Improve the gnt-* list field selection

This patch allows the '-o' option to the list subcommands to add more
fields to the default list instead of replacing the default list by
prefixing the fields list with '+'.

The patch also moves the listing (in the help output) of the default...

Wrap exception in _DistributeConfig code

nodelist.remove(X) could potentially raise a ValueError (even if the chance
that the current node is not in the list are pretty scarce, and its absence
should raise a red flag anyway). If this happens let things go on, as that's...

ssconf: update the SetKey docstring

SetKey is used, other than for adding new nodes, in another few cases. Update
the docstring to reflect this, so we don't mislead people reading it.

Reviewed-by: iustinp

ganeti-masterd: Some docstrings work

- Add a docstring to IOServer's constructor
- Add argument description to PoolWorker's and JobRunner's ones

Reviewed-by: iustinp

Remove deprecated disk templates from doc

Since local_raid1 and remote_raid1 are deprecated they are removed
from the docs. This patch removes some old documentation sections
and bumps the documented version from 1.2 to 1.3.

Reviewed-by: iustinp

Add cluster-verify hooks

Only post-hooks are run on cluster verify, and then their output is sent back
to the LU, which upon failure displays it to the user and changes the result of
the execution to a failure.

Reviewed-by: iustinp

HooksMaster: Make RunPhase return the rpc output

Right now the hooks output is propagated from the nodes all the way up to
HooksMaster.RunPhase, which uses it for debugging PRE hooks, but then silently
discards them. We'll now propagate it up to the Processor.ExecOpCode function,...

LogicalUnit.BuildHooksEnv, update docstring

The LogicalUnit.BuildHooksEnv docstring used to say that the node list should
not include the master node. This is obviously not the case checking the
relevant code, and double-checking with iustin he confirmed it just document...

Add file-based options to gnt-instance man-page

Reviewed-by: iustinp

Disable forking in the master daemon

This patch adds a mechanism to disable utils.RunCmd in selected
programs. This is needed in the master daemon unless we confirm
threading doesn't pose any problems.

This makes cluster init fail, but creating new trunk clusters is anyway...

Add file backend storage options to ImportInstance

This patch adds the file storage options to gnt-backup import which
would otherwise fail since the values of file_storage_dir and
file_driver are accessed in LUCreateInstance.

Reviewed-by: ultrotter

Move the 'cmd' lock from cli.py to ganeti-masterd

This patch removes the lock and the lock options from cli.py and moves
them to the master.

Later during development we can remove it completely, but for now it's
good to protect any other tool that uses the lock directly....

Add check for major/minor in _FormatBlockDevInfo

bdev.FileStorage does not have major or minor fields, so gnt-instance
info for file backed instances fails with a TypeError. This patch
adds checks to prevent that and print 'N/A' instead.

Reviewed-by: imsnah

Move iallocator script execution to ganeti-noded

Currently the iallocator execution takes place in the master, which is a
violation of the current architecture, and will create problems with a
threaded master daemon.

This patch moves the execution to the backend, similar to the hooks...

Extend utils.WriteFile

Add parameters to not check the path for absoluteness, implement a dry
run mode and automatically create a backup if requested. This will be
used by the cfgupgrade utility.

Reviewed-by: schreiberal

IAllocator: simplify node info computation

Currently we try to convert the values returned by call_node_info to
ints, and if all succeed, we actually do the conversion. Simplify this
by doing it in one step.

The patch also adds exporting of node memory as 'reserved_memory'....

Move target creating symlinks in lib/ into Makefile.libcommon

Reviewed-by: iustinp

backend.FinalizeExport: safely initialize some vars

This patch initializes nic_count and disk_count with 0. This prevents
some reference errors if the snap_disks block device list is empty.

Reviewed-by: ultrotter