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# Date Author Comment
686d7433 10/15/2008 01:52 pm Iustin Pop

Implement the job queue drain flag

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

6797ec29 10/15/2008 01:51 pm Iustin Pop

Implement transport of ganeti errors across luxi

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

d11bda8d 10/15/2008 01:51 pm Iustin Pop

Change the JobQueueError parent class

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

Reviewed-by: imsnah

966405b7 10/15/2008 01:13 pm Michael Hanselmann

rapi: Don't throw class as an exception

Reviewed-by: ultrotter

a2f92677 10/15/2008 11:22 am Michael Hanselmann

rapi: Whitespace fixes

Reviewed-by: ultrotter

6605411d 10/14/2008 07:23 pm Iustin Pop

grow-disk: wait until resync is completed

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....

6b5605e8 10/14/2008 05:47 pm Iustin Pop

Convert the KVM hypervisor to hvparams

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

c0f2b229 10/14/2008 05:42 pm Iustin Pop

Some fixes related to auto_balance

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

647a5d80 10/14/2008 05:42 pm Iustin Pop

Fix auto_balance and memory modification

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

3924700f 10/14/2008 05:42 pm Iustin Pop

Use the auto_balance in cluster verify

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....

c1f1cbb2 10/14/2008 05:42 pm Iustin Pop

Fix ordering of instance/nodes

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

bf766476 10/14/2008 02:30 pm Iustin Pop

Remove old instance attributes

Reviewed-by: ultrotter

338e51e8 10/14/2008 02:29 pm Iustin Pop

Change over to beparams

This big patch changes the master code to use the beparams. Errors might
have crept in, but it passes a small burnin.

Reviewed-by: ultrotter

51de46bf 10/14/2008 02:29 pm Iustin Pop

Change the backend to use the beparams

The backend.FinalizeExport function is changed to use the beparams
instead of the instance attributes. Future enhancements should be done
in order to export and import/reuse the whole be/hv params.

Reviewed-by: ultrotter

8b3fd458 10/14/2008 02:29 pm Iustin Pop

Change hypervisors to use the beparams

This patch changes the hypervisor functions to use the beparams dict
instead of the instance attributes.

Reviewed-by: ultrotter

5b442704 10/14/2008 02:29 pm Iustin Pop

Correctly fill the beparams too over RPC

As for the hvparams, we need to replace the sent instance beparams.

Reviewed-by: ultrotter

a604f165 10/14/2008 02:29 pm Iustin Pop

Add cli function for beparams validation

This is used to validate the parameters in both “gnt-instance add” and
“gnt-backup import”.

Reviewed-by: ultrotter

cd3ab26e 10/14/2008 02:29 pm Iustin Pop

Modify the beparams constants

Memory is renamed for easier use.

Reviewed-by: ultrotter

8705eb96 10/14/2008 01:21 pm Iustin Pop

Fix a bug with instance creation and hvparameters

When creating an instance, we need to check not the opcode hvparams, but
the final, filled hvparams against validity. While we do this for the
remote node calls (i.e. ValidateParams), we didn't do this for...

57821cac 10/14/2008 01:21 pm Iustin Pop

Allow instance info to only query the config file

This patch adds a new '-s' parameter to ‘gnt-instance info’ that makes
it return only 'static' information. This is much faster, especially for
drbd instances.

This is a forward-port of rev 1570 on the ganeti-1.2 branch, resending...

24838135 10/14/2008 01:21 pm Iustin Pop

Convert gnt-instance info to the hvparams model

Some informations are not printed nicely (e.g. “virtual CDROM: False”),
but this is the first step.

Reviewed-by: imsnah

74409b12 10/14/2008 01:20 pm Iustin Pop

Change gnt-instance modify to the hvparams model

Reviewed-by: imsnah

5018a335 10/14/2008 01:20 pm Iustin Pop

Change gnt-instance list to the hvparams model

This is just a change of the various hvm_ and pvm parameters to the hv
model. Parameters are queried via hv/$name or via the whole dict as
returned by hvparams.

Reviewed-by: ultrotter,imsnah

6785674e 10/14/2008 01:20 pm Iustin Pop

Switch instance hypervisor parameters to hvparams

This big patch changes instance create to the new hvparams structure.
Old parameters are removed, so old jobs or old instances file will break
current clusters.

Reviewed-by: ultrotter

f23b5ae8 10/14/2008 01:20 pm Iustin Pop

Temporary fix for dual hvm/pvm instances

We have a problem with the current model of combining instance lists
from multiple hypervisors: we don't allow duplicates, but "xm list"
gives the same output for both pvm and hvm. This is a lack in the actual
xen hypervisor implementation/split between pvm and hvm, but for now we...

26ba2bd8 10/14/2008 01:20 pm Iustin Pop

Implement FillHV for instance-related rpc calls

We fill the instance hvparams with cluster defaults, and send a modified
dict over the wire to the node methods - they don't know anything about
cluster defaults versus instance parameters.

Reviewed-by: ultrotter

6217e295 10/14/2008 01:19 pm Iustin Pop

Export the hypervisor.ValidateParameters over RPC

The newly-added node-specific ValidateParams hypervisor method is
exported over RPC, using the semi-standard (success, message) return
value. Multi-node call, so that we call on both primary and secondary at...

f48148c3 10/14/2008 01:19 pm Iustin Pop

Implement the new hypervisor API in base/xen

This patch adds the new methods CheckParameterSyntax and the
ValidateParameters in the base and xen hypervisors. It also changes the
xen hypervisor to use the new hvparams field on instance.

Reviewed-by: imsnah

937e4814 10/14/2008 11:24 am Michael Hanselmann

Get rid of httperror module

This was a leftover from the early days of the remote API in Ganeti 1.2.

Reviewed-by: ultrotter

fcd62d84 10/14/2008 09:38 am Iustin Pop

Implement parameter removal in SplitKeyVal

This patch adds paramter removal in SplitKeyVal, by prefixing a
value-less key with "-"; this is needed in resetting parameters back to
cluster defaults, but care must be applied now that None can come from
the parser....

5bf7b5cf 10/14/2008 09:36 am Iustin Pop

Add the hv/be params object attributes

This patch adds the instance and cluster be/hvparams attributes, and the
Fill* methods on the cluster object. Nothing else is changes, except
that these attributes exist now on the objects.

Reviewed-by: ultrotter

e64b8beb 10/14/2008 09:36 am Iustin Pop

Add constants for the HV/BE parameter names

Since we don't want the string values of the parameters (e.g.
“kernel_path”) spread over the code, we introduce constants for these.

Reviewed-by: ultrotter,schreiberal

16ad1a83 10/13/2008 04:49 pm Iustin Pop

Fix a few rpc-related errors

This fixes:
- whitespace change, double lines between methods
- duplication of call_upload_file, introduced by mistake in rev 1795
and which went undetected because of the many changes in that ref
(only diff -b shows it clearly)...

a8469393 10/13/2008 03:17 pm Iustin Pop

Add two new options types for CLI usage

For the new 2.0-style command line options, we need to parse strings of
the type:
ident:key=val[,...]
and
key=val[,...]

This patch adds two new option builders for these two, which return
(ident, {key=val,}) and {key=val,} for the above two formats. It also...

caad16e2 10/12/2008 11:40 pm Iustin Pop

Abstract checking own address into a function

Currently, we check if we have a given ip address (i.e. it's alive on
one of our interfaces) but manually calling TcpPing(source=localhost).
This works, but having it spread all over the code makes it hard to...

15396f60 10/10/2008 08:08 pm Michael Hanselmann

Mark call_node_leave_cluster as a static method

Reviewed-by: iustinp

082a7f91 10/10/2008 07:04 pm Guido Trotter

OS API: support for multiple versions in an OS

Allow multiple api versions in an OS. This is according to the OS API
changes design doc, by which an OS can support multiple versions of the
Ganeti API and if one is supported by Ganeti it will work. Since up to...

2eb78bc8 10/10/2008 07:04 pm Guido Trotter

LUVerifyCluster: fix error from rpc call

When calling node_verify leads to an error _VerifyNodes tries to iterate
over a non-sequence. Catch the error before and avoid this from
happening.

Reviewed-by: iustinp

42242313 10/10/2008 07:00 pm Michael Hanselmann

Add new HTTP server implementation

This patch adds another implementation of an HTTP server. It's
based on code of Python's BaseHTTPServer, from both version
2.4 and 3k. In the future we can write code to decide whether
we should fork for a request or not. Keep-alive is not supported....

821d9e43 10/10/2008 07:00 pm Michael Hanselmann

Add daemon library with mainloop

This mainloop can be used in daemons like ganeti-noded.

Reviewed-by: iustinp

72737a7f 10/10/2008 12:55 pm Iustin Pop

Convert rpc module to RpcRunner

This big patch changes the call model used in internode-rpc from
standalong function calls in the rpc module to via a RpcRunner class,
that holds all the methods. This can be used in the future to enable
smarter processing in the RPC layer itself (some quick examples are not...

b9bddb6b 10/10/2008 12:52 pm Iustin Pop

Cleanup in cmdlib for standalone function calls

This patch is a cleanup of the standalone functions in cmdlib. Many of
them too as argument a ConfigWriter instance, but some also took other
parameters from the lu (e.g. proc), and in the future, if we want to...

7b3a8fb5 10/10/2008 12:51 pm Iustin Pop

Small random fixes

Indentation in bootstrap was wrong and some names in cmdlib.py were not
right.

Reviewed-by: imsnah

4b2f38dd 10/09/2008 02:29 pm Iustin Pop

Move instance hypervisor check to ExpandNames

This check can be done earlier, in ExpandNames, and is needed here for
the hypervisor parameter check.

Reviewed-by: ultrotter

e49099a4 10/08/2008 08:31 pm Alexander Schreiber

Update scripts and qa config for changed hypervisor names.

Reviewed-by: ultrotter

00cd937c 10/08/2008 05:31 pm Iustin Pop

Sanitize the hypervisor names

Since in 2.0 the user will possibly have more interaction with the
hypervisor names, we sanitize them by removing the version numbers
(the version can be a prerequisite for the ganeti installation, we
shouldn't document it in variable names)....

02f99608 10/08/2008 04:04 pm Oleksiy Mishchenko

Fix for gnt-cluster init.

Reviewed-by: iustinp

e69d05fd 10/08/2008 01:36 pm Iustin Pop

Move the hypervisor attribute to the instances

This (big) patch moves the hypervisor type from the cluster to the
instance level; the cluster attribute remains as the default hypervisor,
and will be renamed accordingly in a next patch. The cluster also gains...

9f0e6b37 10/07/2008 02:39 pm Iustin Pop

rpc.call_instance_migrate: pass the whole instance

Currently the call_instance_migrate call only passes the instance name;
we need to pass the whole object for the hypervisor_type changes (all
the other individual instance rpc calls already pass the instance...

e92376d7 10/07/2008 11:03 am Iustin Pop

Implement job 'waiting' status

Background: when we have multiple jobs in the queue (more than just a
few), many of the jobs (up to the number of threads) will be in state
'running', although many of them could be actually blocked, waiting for
some locks. This is not good, as one cannot easily see what is...

07cd723a 10/06/2008 07:42 pm Iustin Pop

Implement job auto-archiving

This patch adds a new luxi call that implements auto-archiving of jobs
older than a certain age (or -1 for all completed jobs), and the gnt-job
command that makes use of this (with 'all' for -1).

Reviewed-by: imsnah

2241e2b9 10/06/2008 06:59 pm Iustin Pop

Add a simple timespec parsing function

This function will be used for auto-archiving jobs via the command line.
The function is pretty simple, we only support up to weeks since months
and higher are not 'precise' entities, and dealing with them would
require us to start using calendar functions....

62c9ec92 10/06/2008 06:58 pm Iustin Pop

backend.py change to get cluster name from master

Currently there are three function in backend that need the cluster name
in order to instantiate an SshRunner. The patch changes these to get the
cluster name from the master in the rpc call; once the multi-hypervisor...

3d3a04bc 10/06/2008 06:56 pm Iustin Pop

Disable re-reading of config file

Since the objects read from the config file are passed to the various
threads, it's unsafe to re-read the config file (and throw away
ConfigWriter._config_data). As such, we disable the re-reading of the
file (since now the master is the owner the file, it makes not sense to...

e0ec0ff6 10/06/2008 04:40 pm Iustin Pop

Fix gnt-job list with empty timestamps

In case the job object doesn't have a timestamp (which is a separate
issue), the listing should not break. We fix this by changing the
FormatTimstamp function itself to return '?' in case the timestamp
doesn't look good (note that it still can break if non-integers are...

1daae384 10/06/2008 04:29 pm Iustin Pop

Increase the number of threads to 25

Since our locks are not gathered nicely, we can have jobs that are
actually blocking on locks (parallel burnin shows this), so at least we
need to increase the number of threads above the usual number of jobs we
could have in a such a case....

6b0469d2 10/06/2008 04:16 pm Iustin Pop

Fix SshRunner breakage from the changed API

More places actually use the SshRunner than just the gnt-cluster
commands.

Reviewed-by: ultrotter

56bece1f 10/06/2008 02:48 pm Iustin Pop

Change SshRunner usage

Currently the SshRunner uses a SimpleConfigReader instance, however this
is not best. We change it to use the cluster name directly (and its
constructor now takes this as parameter, instead of SCR), and its
callers are change to pass the name directly....

06dc5b44 10/05/2008 12:16 pm Iustin Pop

Fix ssconf.GetMasterAndMyself

The ssconf migration left this out.

Reviwed-by: imsnah,ultrotter

c259ce64 10/01/2008 08:37 pm Michael Hanselmann

Get rid of ssconf

Remove leftovers from ssconf.

Reviewed-by: iustinp

0b38cf6e 10/01/2008 08:37 pm Michael Hanselmann

Don't pass sstore to LUs anymore

sstore is no longer used in LUs.

Reviewed-by: iustinp

d23ef431 10/01/2008 08:35 pm Michael Hanselmann

Convert bootstrap.py

Replace ssconf with configuration.

Reviewed-by: iustinp

d6a02168 10/01/2008 08:35 pm Michael Hanselmann

Convert cmdlib.py

Replacing ssconf with configuration. Cluster rename is broken and stays
that way.

Reviewed-by: iustinp

7688d0d3 10/01/2008 08:35 pm Michael Hanselmann

Convert ssh.py

Get rid of ssconf and convert to configuration instead.

Reviewed-by: iustinp

eb1328a9 10/01/2008 08:34 pm Michael Hanselmann

Convert rpc.py

Replacing ssconf with utility functions.

Reviewed-by: iustinp

3707f851 10/01/2008 08:34 pm Michael Hanselmann

Convert hypervisor

Replacing ssconf with configuration.

Reviewed-by: iustinp

437138c9 10/01/2008 08:34 pm Michael Hanselmann

Convert mcpu.py

Replacing ssconf with configuration.

Reviewed-by: iustinp

5b263ed7 10/01/2008 08:34 pm Michael Hanselmann

Convert config.py

The configuration version is now again in the configuration file.

Reviewed-by: iustinp

c657dcc9 10/01/2008 08:34 pm Michael Hanselmann

Convert backend.py

Replacing ssconf with simpleconfig.

Reviewed-by: iustinp

ae5849b5 10/01/2008 08:33 pm Michael Hanselmann

Add new query to get cluster config values

This can be used to retrieve certain cluster config values from
within clients.

OpDumpClusterConfig was not used anywhere, hence I'm just reusing
it. The way ConfigWriter.DumpConfig returned the configuration
was not thread-safe, anyway (no deepcopy)....

4a8b186a 10/01/2008 08:33 pm Michael Hanselmann

Move functions from ssconf.py elsewhere

These functions will be used to access config values instead of using
ssconf.

Reviewed-by: iustinp

856c67e1 10/01/2008 08:33 pm Michael Hanselmann

Add simple configuration reader/writer classes

This will be used to read the configuration file in the node daemon.
The write functionality is needed for master failover.

Reviewed-by: iustinp

5188ab37 10/01/2008 12:27 pm Iustin Pop

Remove last use of utils.RunCmd from the watcher

The watcher has one last use of ganeti commands as opposed to sending
requests via luxi. The patch changes this to use the cli functions.

The patch also has two other changes:
- fix the docstring for OpVerifyDisks (found out while converting...

f6bd6e98 10/01/2008 12:03 pm Michael Hanselmann

Add cluster options from ssconf to configuration

ssconf will become write-only from ganeti-masterd's point of view,
therefore all settings in there need to go into the main configuration
file.

Reviewed-by: iustinp

b9eeeb02 10/01/2008 12:03 pm Michael Hanselmann

Move instantiation of config into bootstrap.py

Future patches will add even more variables to the cluster config.
Adding more parameters wouldn't make the function easier to use and
it doesn't make sense to pass them to another function, as it's
only done once in bootstrap.py on cluster initialization....

53c04d04 10/01/2008 11:29 am Iustin Pop

Change the results from cli.PollJob

Curently PollJob accepts a generic job, but will return (history
artifact) only the first opcode result. This is wrong, as it doesn't
allow polling of a job with multiple results.

Its only caller (for now) is also changed, so no functional changes...

c56ec146 09/30/2008 03:04 pm Iustin Pop

Enhance the job-related timestamps

This patch adds start, stop, and received timestamp for jobs (and allows
querying of them), and allows querying of the opcode timestamps.

Reviewed-by: imsnah

3386e7a9 09/30/2008 12:36 pm Iustin Pop

Abstract the timestamp formatting into cli.py

Currently we format the timestamp inside the gnt-job info function. We
will need this more times in the future, so move it to cli.py as a
separate, exported function.

Reviewed-by: imsnah

5b23c34c 09/29/2008 06:38 pm Iustin Pop

Add opcode execution log in job info

This patch adds the job execution log in “gnt-job info” and also allows
its selection in “gnt-job list” (however here it's not very useful as
it's not easy to parse). It does this by adding a new field in the query
job call, named ‘oplog’....

3c03759a 09/29/2008 04:15 pm Iustin Pop

Move a hardcoded constant to constants.py

For now we only use the ‘C’ protocol so we can put it in constants.py
instead of hardcoding it.

Reviewed-by: imsnah

2899d9de 09/29/2008 04:15 pm Iustin Pop

Enable the use of shared secrets

This patch enables the use of the shared secrets for DRBD8 disks, using
(hardcoded in constants.py) the md5 digest algorithm.

For making this more flexible, either we implement a cluster parameter
(once the new model is in place), or we can make it ./configure-time...

f9518d38 09/29/2008 04:15 pm Iustin Pop

Extend DRBD disks with shared secret attribute

This patch, which is similar to r1679 (Extend DRBD disks with minors
attribute), extends the logical and physical id of the DRBD disks with a
shared secret attribute. This is generated at disk creation time and...

60dd1473 09/29/2008 04:09 pm Iustin Pop

Implement job summary in gnt-job list

It is not currently possibly to show a summary of the job in the output
of “gnt-job list”. The closes is listing the whole opcode(s), but that
is too verbose. Also, the default output (id, status) is not very
useful, unless one looks for (and knows about) an exact job ID....

3b87986e 09/29/2008 04:08 pm Iustin Pop

Nicely sort the job list

Unless we decide to change the job identifiers to integer, we should at
least sort the list returned by _GetJobIDsUnlocked.

Reviewed-by: imsnah

33081d90 09/28/2008 05:44 pm Iustin Pop

Move the pseudo-secret generation to utils.py

The bootstrap code needs a pseudo-secret and this is currently generated
inside the InitGanetiServerSetup function. Since more users will need
this, move it to utils.py

Reviewed-by: ultrotter

d48663e4 09/28/2008 05:43 pm Iustin Pop

Fix a bug related to static minors

When the node does not yet have any minors allocated, the first minor
(0) will not be entered in the ConfigWriter._temporary_drbds structure.
This does not happen for our current usage, since we always ask for two
minors (so the next call will not match this case), but it will be...

48ce9fd9 09/27/2008 11:45 pm Iustin Pop

Add checks for tcp/udp port collisions

In case the config file is manually modified, or in case of bugs, the
tcp/udp ports could be reused, which will create various problems
(instances not able to start, or drbd disks not able to communicate).

This patch extends the ConfigWriter.VerifyConfig() method (which is used...

b9f72b4e 09/27/2008 06:58 pm Iustin Pop

Update the cluster serial_no on certain operations

This patch adds update of the cluster serial number for:
- add/remove node (as the cluster's node list is changed)
- add/remove/rename instance (as the cluster's instance list is changed)
- change the volume group name...

38d7239a 09/27/2008 06:58 pm Iustin Pop

Allow listing of the serial_no via gnt-* list

This patch adds listing of the serial_no attribute in gnt-instance and
gnt-node list, and updates to the manpages to reflect the change.

Reviewed-by: ultrotter

b989e85d 09/27/2008 06:58 pm Iustin Pop

Initialize and update the serial_no on objects

This patch add initialization of the serial_no on instance and nodes,
and update of the field whenever an object is updated in the generic
case, via ConfigWriter.Update(obj) and in the specific case of
instances' state being modified manually....

9d38c6e1 09/27/2008 06:58 pm Iustin Pop

Switch the global serial_no to the top object

Currently the serial_no that is incremented every time the configuration
file is written is located on the 'cluster' object in the configuration
structure. However, this is wrong as the cluster serial_no should be...

be1fa613 09/27/2008 06:58 pm Iustin Pop

Add serial_no attributes to objects

This patch adds the ‘serial_no’ attribute to the other top-level objects
(the configuration object itself, the nodes and the instances).

Reviewed-by: ultrotter

97abc79f 09/27/2008 06:57 pm Iustin Pop

Replace a cfg.AddInstance with UpdateInstance

This seems to be the last (deprecated) use of AddInstance in order to
update an instance.

The patch also removes a whitespace-at-eol case.

Reviewed-by: ultrotter

1ce4bbe3 09/25/2008 12:40 pm René Nussbaumer

Fix iallocator name

port forward of patch from revision 1690 with following message:

Patch on revision 1686 used the wrong field: ial.name, which is the instance
name and not the iallocator name. self.op.iallocator is the right field.

Sorry for this inconvenience....

207a6c74 09/25/2008 11:42 am René Nussbaumer

Fix a broken format string

This patch fixes a broken format string. It's expecting 3 parameters, but only
gets 2. This change will add the missing parameter. This is a forward-port
of the fix in Ganeti 1.2

Reviewed-by: imsnah

74a48621 09/24/2008 04:43 pm Iustin Pop

Switch config.py to logging

A couple of more modules are using the obsolete logger functions, config
being one of them.

Reviewed-by: imsnah

a1578d63 09/23/2008 03:10 pm Iustin Pop

Switch to static minors for DRBD

With some todos remaining, this patch switches the DRBD devices to use
the passed minors, and the cmdlib code (add instance and replace disks)
to request and assign minors to the DRBD disks.

Todos:
- look at the disk RPC calls to see which can be optimized away, since...

a81c53c9 09/23/2008 03:10 pm Iustin Pop

Implement config support for drbd static minors

This patch adds support for allocating static minors.

Like for the LVM uuids, we add a new cache for the temporarily allocated
requests, and the users of the new methods must manually clear the
cache. If this doesn't happen, at worst we lose some minors....

468b46f9 09/23/2008 03:10 pm Iustin Pop

Fix disk replace secondary with static minors

The code in 'updating instance configuration' section of the replace
disks with change secondary node was setting a wrong new logical_id for
the drbd devices (only set the new node, not the new minor). The patch...

ffa1c0dc 09/22/2008 02:32 pm Iustin Pop

Extend DRBD disks with minors attribute

This patch converts the DRBD disks to contain also a minor (per each
node) attribute. This minor is not yet used and is always initialized
with None, so the patch does not have any real-world impact - except for
automatically upgrading config files (it adds the minors as None, None)....