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# Date Author Comment
14fe92c7 01/16/2013 07:09 pm Bernardo Dal Seno

New RPC call for node verify in dns-only RPC client

This will be used in node-add.

Signed-off-by: Bernardo Dal Seno <>
Reviewed-by: Michael Hanselmann <>

b954f097 12/22/2012 11:47 am Constantinos Venetsanopoulos

Add the gnt-storage client

Add a new client called 'gnt-storage'.
The client interacts with the ExtStorage interface, similarly to
the way gnt-os interacts with the OS interface.

For now, only two commands are supported: 'info' and 'diagnose'.

'diagnose' calculates the node status of each provider on each node,...

1a3c5d4e 12/21/2012 06:45 pm Bernardo Dal Seno

Add exclusive_storage parameter to node_info RPC

The flag is passed to the low-level functions that need it, but it's not
yet used. Also, RPCs get just a default value for now.

Signed-off-by: Bernardo Dal Seno <>
Reviewed-by: Iustin Pop <>

ee1478e5 12/21/2012 01:40 pm Bernardo Dal Seno

Add exclusive_storage parameter to blockdev_create RPC

The flag is passed to the low-level functions that need it, but it's not
yet used.

Signed-off-by: Bernardo Dal Seno <>
Reviewed-by: Iustin Pop <>

ec5af888 12/13/2012 01:29 pm Michael Hanselmann

Read watcher pause using RPC, not directly

The master daemon should not directly read files written by the node
daemon. This patch adds a new RPC to read the watcher pause file and
changes the master code to use it.

Signed-off-by: Michael Hanselmann <>...

99e222b1 12/13/2012 01:29 pm Michael Hanselmann

Add RPC for setting watcher pause

The watcher pause file should be set/unset on all nodes at once, not
only the master node. For that a new RPC is needed.

Signed-off-by: Michael Hanselmann <>
Reviewed-by: Guido Trotter <>

be6c403e 12/11/2012 03:37 pm Michael Hanselmann

Replicate queue drain flag across all master candidates

Until now, the flag was unset on a master failover unless the
“$localstatedir/lib/ganeti/queue/drain” file existed.

Signed-off-by: Michael Hanselmann <>
Reviewed-by: Guido Trotter <>

42bd26e8 11/21/2012 03:43 pm Michael Hanselmann

backend: Rename RunRemoteCommand to RunRestrictedCmd

As per Iustin Pop's suggestion in <> on
<>.

Signed-off-by: Michael Hanselmann <>
Reviewed-by: Guido Trotter <>

db2203e0 11/19/2012 03:12 pm Michael Hanselmann

Add RPC for restricted commands

Expose the functionality to run restricted commands remotely via RPC.

Signed-off-by: Michael Hanselmann <>
Reviewed-by: Guido Trotter <>
Reviewed-by: Iustin Pop <>

48e175a2 10/19/2012 05:55 pm Iustin Pop

Update blockdev's "info" at instance rename

Currently, we set "info" metadata on block devices at device creation
time, but we never update it, leading to stale data in case of
instance renames. This would not be a big problem in case of regular
renames (assuming this is a rare operation), but importing instances...

a7862455 10/17/2012 02:56 pm Iustin Pop

Remove support for PUT in noded

This takes care of a FIXME; 2.6 already uses the new method, so we're
good during upgrades.

Signed-off-by: Iustin Pop <>
Reviewed-by: Michael Hanselmann <>

ee501db1 10/04/2012 04:38 am Michael Hanselmann

Move a function from backend to ssconf

The “WriteSsconfFiles” function is used to write ssconf files. By moving
it we can avoid importing backend into bootstrap. The latter is imported
by CLI programs and backend doesn't have much to do with them.

Signed-off-by: Michael Hanselmann <>...

a5ce2ea2 09/18/2012 06:09 pm Michael Hanselmann

Migrate lib/server/*.py from constants to pathutils

File system paths moved from constants to pathutils.

Signed-off-by: Michael Hanselmann <>
Reviewed-by: Iustin Pop <>

5ae4945a 08/23/2012 02:41 pm Iustin Pop

Bump pep8 version to 1.2

Debian Wheezy will ship with this version, and it has many improved checks compared to 0.6, so let's:

- bump version in the docs
- silence some new checks that are wrong due to our indent=2 instead of 4
- fix lots of errors in the code where the indentation was wrong by 1...

cad0723b 07/05/2012 03:20 pm Iustin Pop

Fix DRBD resize code

There are two bugs in the current resize code, affecting mostly DRBD.

First, due to bugs in old DRBD versions (pre 8.0.14), the code currently
calls `drbdsetup resize' on both the primary or secondary. However,
this is actually wrong per current DRBD (from drbdsetup(8)):...

cca5b3fc 02/22/2012 03:12 pm Michael Hanselmann

noded: Shorter docstring for mlockall(2) executor

Signed-off-by: Michael Hanselmann <>
Reviewed-by: René Nussbaumer <>

e0003509 02/22/2012 03:12 pm Michael Hanselmann

Split handling HTTP requests into separate class

Until now HTTP requests were handled in the same class as incoming
connections (http.server.HttpServer). With this change the request
handling is delegated to a separate class which can be re-used in tests...

ebe466d8 01/17/2012 03:01 pm Guido Trotter

Add instance_balloon_memory rpc

Signed-off-by: Guido Trotter <>
Reviewed-by: René Nussbaumer <>

7530364d 01/17/2012 12:08 pm Iustin Pop

Accept both PUT and POST in noded

Currently, noded requires PUT, even though the semantics of the RPC
calls do not match a PUT. We change the code accept both PUT and POST,
with the intention to remove the PUT support in a later version.

On the client side, the RPC code is changed to send POST requests....

5449685e 12/21/2011 06:02 pm Iustin Pop

Switch blockdev_getmirrorstatus_multi to per-node bodies

Even for a small 4-node node-group, this reduces the payload of this
RPC call by half for each node; for a big node group, previous testing
(using a different patch) showed a general reduction in traffic over...

a182a3ed 12/21/2011 04:55 pm Michael Hanselmann

serializer: Remove JSON indentation and dict key sorting

Serializing to JSON using “simplejson” is significantly slower when
indentation and/or sorting of dictionary keys is used. In simplejson 1.x
the difference isn't that big, but with simplejson 2.x the difference...

78519c10 11/30/2011 12:26 pm Michael Hanselmann

Change “node_info” RPC to accept multiple VGs/hypervisors

Keeping the node state up to date will require information from multiple
VGs and hypervisors. Instead of requiring multiple calls this change
allows a single call to return all needed information. Existing users...

57c7bc57 11/14/2011 05:18 pm Andrea Spadaccini

Change master IP address RPCs for external script

Change the master IP address RPC call chain to accept the
use_external_master_ip_script parameter. Introduces an unused parameter
in backend.ActivateMasterIp and backend.DeactivateMasterIp, that will be
used in the next commit....

c79198a0 11/03/2011 04:39 pm Andrea Spadaccini

Pass MasterNetworkParameters instances in RPCs

Pass instances of objects.MasterNetworkParameters when calling RPCs for
activation and deactivation of master IP.

Signed-off-by: Andrea Spadaccini <>
Reviewed-by: Guido Trotter <>

91ae95fd 11/03/2011 04:39 pm Andrea Spadaccini

Uniform master IP activation and deactivation

Add the master IP family parameter to the master IP deactivation RPCs,
so that the activation and deactivation interfaces are uniform.

Signed-off-by: Andrea Spadaccini <>
Reviewed-by: Guido Trotter <>

41e079ce 11/02/2011 03:03 pm Andrea Spadaccini

Explicitly pass params to change_master_netmask

Make the master explicitly pass the parameters to the
change_master_netmask RPC, and change all the call flow to use the new
interface.

Signed-off-by: Andrea Spadaccini <>
Reviewed-by: Michael Hanselmann <>

96e0d5cc 11/02/2011 03:03 pm Andrea Spadaccini

Explicitly pass params to deactivate_master_ip

Make the master explicitly pass the parameters to the
deactivate_master_ip RPC, and change all the call flow to use the new
interface.

Signed-off-by: Andrea Spadaccini <>
Reviewed-by: Michael Hanselmann <>

7c74bbe0 11/02/2011 03:03 pm Andrea Spadaccini

Change the semantics of stop_master RPC

To avoid polluting the stop_master RPC interface with network
parameters, this patch removes the deactivation of the master IP from
this RPC.

The call to deactivate_master_ip is then added before every stop_master...

8da2bd43 11/02/2011 03:03 pm Andrea Spadaccini

Explicitly pass params to activate_master_ip

To remove the usage of ssconf in the backend, the master needs to push
the parameters of activate_master_ip to the backend.

This patch changes the entire call path of activate_master_ip to use the
new interface....

b8c160c1 11/01/2011 05:17 pm Michael Hanselmann

rpc: Change {import,export}_start to take source/dest in single argument

This simplifies the RPC argument encoding code.

Signed-off-by: Michael Hanselmann <>
Reviewed-by: René Nussbaumer <>

415a7304 10/26/2011 11:53 am Michael Hanselmann

rpc: Convert last two calls to generated code

These two calls, “upload_file” and “write_ssconf_files” are treated
separated as they're used by the configuration, where we can't use the
normal resolver.

There's still some duplicated code in rpc.py, but that will be taken...

fb1ffbca 10/26/2011 11:53 am Michael Hanselmann

Convert job queue's RPC to generated code

With these changes job queue RPC will finally show up on the lock
monitor. See below for an example. A job queue-specific class is used to
restrict the use of a static list for name resolution to the job queue.
Further improvements can be made to not re-create the whole RPC client...

e437117f 10/26/2011 11:53 am Michael Hanselmann

rpc: Convert blockdev-related calls

Signed-off-by: Michael Hanselmann <>
Reviewed-by: Iustin Pop <>

8a31717c 10/24/2011 08:02 pm Michael Hanselmann

Fix parameters to RPC "blockdev_rename"

Before this patch it would take a variable number of arguments, which
isn't very good for a definition-based approach.

Signed-off-by: Michael Hanselmann <>
Reviewed-by: Iustin Pop <>

ee8fd7b7 10/24/2011 03:50 pm Michael Hanselmann

Remove “node_tcp_ping” RPC

It is not used anywhere.

Signed-off-by: Michael Hanselmann <>
Reviewed-by: Iustin Pop <>

5a8648eb 10/05/2011 12:05 pm Andrea Spadaccini

Add cluster netmask parameter

Add the master_netmask cluster parameter, that represents the netmask of
the master IP, encoded as a CIDR suffix.

This parameter can be set via the --master-netmask of gnt-cluster init
and gnt-cluster modify. The default behaviour is to be consistent with...

fb460cf7 09/30/2011 02:05 pm Andrea Spadaccini

Split starting and stopping master IP and daemons

lib/backend.py
  • split StartMaster() in ActivateMasterIp() and StartMasterDaemons()
  • split StopMaster() in DeactivateMasterIp() and StopMasterDaemons()
lib/server/noded.py, lib/rpc.py
  • adapt the call chains to the new functions, define new RPCs...
6a1434d7 09/29/2011 12:41 pm Andrea Spadaccini

Make migration RPC non-blocking

To add status reporting for the KVM migration, the instance_migrate RPC
must be non-blocking. Moreover, there must be a way to represent the
migration status and a way to fetch it.

  • constants.py:
    - add constants representing the migration statuses...
b459a848 08/30/2011 11:24 am Andrea Spadaccini

DeprecationWarning fixes for pylint

In version 0.21, pylint unified all the disable-* (and enable-*)
directives to disable (resp. enable). This leads to a lot of
DeprecationWarning being emitted even if one uses the recommended
version of pylint (0.21.1, as stated in devnotes.rst)....

e687ec01 08/25/2011 01:53 pm Michael Hanselmann

PEP8 style fixes

Identified using the “pep8” utility.

Signed-off-by: Michael Hanselmann <>
Reviewed-by: Iustin Pop <>

6613661a 08/03/2011 05:42 pm Iustin Pop

Instance transfer: export component name to backend

This modifies the RPC layer to export the component name too to the
backend, so that it can be used in log files and messages.

Signed-off-by: Iustin Pop <>
Reviewed-by: Michael Hanselmann <>

323f9095 07/08/2011 03:15 pm Stephen Shirley

Add gnt-instance start --pause

Creates the instance, but pauses execution before booting. This combined
with 'gnt-instance console' unpausing instances means that the entire
boot process can be viewed and monitored.

Signed-off-by: Stephen Shirley <>...

6aac5aef 05/20/2011 11:11 am Iustin Pop

Merge remote branch 'origin/devel-2.4'

  • origin/devel-2.4:
    Fix errors in hooks documentation
    Clarify a bit the noded man page
    Note --no-remember in NEWS
    Switch QA over to using instance stop --no-remember
    Implement no_remember at RAPI level
    Implement no_remember at CLI level...
f01738fc 05/12/2011 03:40 pm Iustin Pop

Preload the string-escape code in noded

This encoding, part of the standard Python installation, is used by
the pickle module (in turn used by subprocess when handling
failures in program execution). Preloading it means that Python will
cache it in memory so that even if the disk goes away or just the...

a59faf4b 05/10/2011 05:37 pm Iustin Pop

Implement grow dry-run at RPC level

Signed-off-by: Iustin Pop <>
Reviewed-by: Guido Trotter <>

2be7273c 03/08/2011 02:00 pm Apollon Oikonomopoulos

Add bdev_sizes RPC call

The bdev_sizes multi-node RPC call returns the sizes of the requested
block devices on the desired nodes. Its intended use is to verify the
existence of a block device on a given node for shared block storage
support.

Block device paths are expected to lie under constants.BLOCKDEV_DIR...

c417e115 01/28/2011 06:44 pm Iustin Pop

Re-create instance disk symlinks on activate

This patch implements recreation of instance disk symlinks when the
activate-disks operation is run. Until now, it was not possible to
re-create these symlinks without stopping and starting or migrating an
instance as the RPC call where this is done was in instance startup...

9c007da8 01/11/2011 02:44 pm René Nussbaumer

Add RPC calls for pause/resume sync of devices

Signed-off-by: René Nussbaumer <>
Reviewed-by: Iustin Pop <>

1aa88d95 12/09/2010 05:03 pm René Nussbaumer

Ensure we just serialize JSON if there is data

Signed-off-by: René Nussbaumer <>
Reviewed-by: Iustin Pop <>

4f6014d4 12/01/2010 03:36 pm René Nussbaumer

Adding RPC infrastructure to call oob

Signed-off-by: René Nussbaumer <>
Reviewed-by: Iustin Pop <>

c6a9dffa 11/03/2010 04:44 pm Michael Hanselmann

Fix disk checks in “gnt-cluster verify”

Tests have shown that the changes in commit b8d26c6e5 don't work as
wanted. If any disk wasn't found on the node, all disks located on the
same node would show as faulty. The cause was incorrect exception
handling on the node....

69cf3abd 11/03/2010 04:44 pm Michael Hanselmann

Remove shebang line from ganeti.server.*

Some of then were forgotten.

Signed-off-by: Michael Hanselmann <>
Reviewed-by: René Nussbaumer <>

5119f2ec 10/29/2010 05:48 pm Michael Hanselmann

Move ganeti-noded to ganeti.server.noded

Signed-off-by: Michael Hanselmann <>
Reviewed-by: René Nussbaumer <>