root / NEWS @ ac492887
History | View | Annotate | Download (37.3 kB)
1 |
News |
---|---|
2 |
==== |
3 |
|
4 |
Version 2.2.0 beta 0 |
5 |
-------------------- |
6 |
|
7 |
*(Released Thu, 17 Jun 2010)* |
8 |
|
9 |
- Added tool (``move-instance``) and infrastructure to move instances |
10 |
between separate clusters (see :doc:`separate documentation |
11 |
<move-instance>` and :doc:`design document <design-2.2>`) |
12 |
- Added per-request RPC timeout |
13 |
- RAPI now requires a Content-Type header for requests with a body (e.g. |
14 |
``PUT`` or ``POST``) which must be set to ``application/json`` (see |
15 |
RFC2616 (HTTP/1.1), section 7.2.1) |
16 |
- ``ganeti-watcher`` attempts to restart ``ganeti-rapi`` if RAPI is not |
17 |
reachable |
18 |
- Implemented initial support for running Ganeti daemons as separate |
19 |
users, see configure-time flags ``--with-user-prefix`` and |
20 |
``--with-group-prefix`` (only ``ganeti-rapi`` is supported at this |
21 |
time) |
22 |
- Instances can be removed after export (``gnt-backup export |
23 |
--remove-instance``) |
24 |
- Self-signed certificates generated by Ganeti now use a 2048 bit RSA |
25 |
key (instead of 1024 bit) |
26 |
- Added new cluster configuration file for cluster domain secret |
27 |
- Import/export now use SSL instead of SSH |
28 |
- Added support for showing estimated time when exporting an instance, |
29 |
see the ``ganeti-os-interface(7)`` manpage and look for |
30 |
``EXP_SIZE_FD`` |
31 |
|
32 |
|
33 |
Version 2.1.4 |
34 |
------------- |
35 |
|
36 |
*(Released Fri, 18 Jun 2010)* |
37 |
|
38 |
A small bugfix release: |
39 |
|
40 |
- Fix live migration of KVM instances started with older Ganeti |
41 |
versions which had fewer hypervisor parameters |
42 |
- Fix gnt-instance grow-disk on down instances |
43 |
- Fix an error-reporting bug during instance migration |
44 |
- Better checking of the ``--net`` and ``--disk`` values, to avoid |
45 |
silently ignoring broken ones |
46 |
- Fix an RPC error reporting bug affecting, for example, RAPI client |
47 |
users |
48 |
- Fix bug triggered by different API version os-es on different nodes |
49 |
- Fix a bug in instance startup with custom hvparams: OS level |
50 |
parameters would fail to be applied. |
51 |
- Fix the RAPI client under Python 2.6 (but more work is needed to |
52 |
make it work completely well with OpenSSL) |
53 |
- Fix handling of errors when resolving names from DNS |
54 |
|
55 |
|
56 |
Version 2.1.3 |
57 |
------------- |
58 |
|
59 |
*(Released Thu, 3 Jun 2010)* |
60 |
|
61 |
A medium sized development cycle. Some new features, and some |
62 |
fixes/small improvements/cleanups. |
63 |
|
64 |
Significant features |
65 |
~~~~~~~~~~~~~~~~~~~~ |
66 |
|
67 |
The node deamon now tries to mlock itself into memory, unless the |
68 |
``--no-mlock`` flag is passed. It also doesn't fail if it can't write |
69 |
its logs, and falls back to console logging. This allows emergency |
70 |
features such as ``gnt-node powercycle`` to work even in the event of a |
71 |
broken node disk (tested offlining the disk hosting the node's |
72 |
filesystem and dropping its memory caches; don't try this at home) |
73 |
|
74 |
KVM: add vhost-net acceleration support. It can be tested with a new |
75 |
enough version of the kernel and of qemu-kvm. |
76 |
|
77 |
KVM: Add instance chrooting feature. If you use privilege dropping for |
78 |
your VMs you can also now force them to chroot to an empty directory, |
79 |
before starting the emulated guest. |
80 |
|
81 |
KVM: Add maximum migration bandwith and maximum downtime tweaking |
82 |
support (requires a new-enough version of qemu-kvm). |
83 |
|
84 |
Cluster verify will now warn if the master node doesn't have the master |
85 |
ip configured on it. |
86 |
|
87 |
Add a new (incompatible) instance creation request format to RAPI which |
88 |
supports all parameters (previously only a subset was supported, and it |
89 |
wasn't possible to extend the old format to accomodate all the new |
90 |
features. The old format is still supported, and a client can check for |
91 |
this feature, before using it, by checking for its presence in the |
92 |
``features`` RAPI resource. |
93 |
|
94 |
Now with ancient latin support. Try it passing the ``--roman`` option to |
95 |
``gnt-instance info``, ``gnt-cluster info`` or ``gnt-node list`` |
96 |
(requires the python-roman module to be installed, in order to work). |
97 |
|
98 |
Other changes |
99 |
~~~~~~~~~~~~~ |
100 |
|
101 |
As usual many internal code refactorings, documentation updates, and |
102 |
such. Among others: |
103 |
|
104 |
- Lots of improvements and cleanups to the experimental Remote API |
105 |
(RAPI) client library. |
106 |
- A new unit test suite for the core daemon libraries. |
107 |
- A fix to creating missing directories makes sure the umask is not |
108 |
applied anymore. This enforces the same directory permissions |
109 |
everywhere. |
110 |
- Better handling terminating daemons with ctrl+c (used when running |
111 |
them in debugging mode). |
112 |
- Fix a race condition in live migrating a KVM instance, when stat() |
113 |
on the old proc status file returned EINVAL, which is an unexpected |
114 |
value. |
115 |
- Fixed manpage checking with newer man and utf-8 charachters. But now |
116 |
you need the en_US.UTF-8 locale enabled to build Ganeti from git. |
117 |
|
118 |
|
119 |
Version 2.1.2.1 |
120 |
--------------- |
121 |
|
122 |
*(Released Fri, 7 May 2010)* |
123 |
|
124 |
Fix a bug which prevented untagged KVM instances from starting. |
125 |
|
126 |
|
127 |
Version 2.1.2 |
128 |
------------- |
129 |
|
130 |
*(Released Fri, 7 May 2010)* |
131 |
|
132 |
Another release with a long development cycle, during which many |
133 |
different features were added. |
134 |
|
135 |
Significant features |
136 |
~~~~~~~~~~~~~~~~~~~~ |
137 |
|
138 |
The KVM hypervisor now can run the individual instances as non-root, to |
139 |
reduce the impact of a VM being hijacked due to bugs in the |
140 |
hypervisor. It is possible to run all instances as a single (non-root) |
141 |
user, to manually specify a user for each instance, or to dynamically |
142 |
allocate a user out of a cluster-wide pool to each instance, with the |
143 |
guarantee that no two instances will run under the same user ID on any |
144 |
given node. |
145 |
|
146 |
An experimental RAPI client library, that can be used standalone |
147 |
(without the other Ganeti libraries), is provided in the source tree as |
148 |
``lib/rapi/client.py``. Note this client might change its interface in |
149 |
the future, as we iterate on its capabilities. |
150 |
|
151 |
A new command, ``gnt-cluster renew-crypto`` has been added to easily |
152 |
replace the cluster's certificates and crypto keys. This might help in |
153 |
case they have been compromised, or have simply expired. |
154 |
|
155 |
A new disk option for instance creation has been added that allows one |
156 |
to "adopt" currently existing logical volumes, with data |
157 |
preservation. This should allow easier migration to Ganeti from |
158 |
unmanaged (or managed via other software) instances. |
159 |
|
160 |
Another disk improvement is the possibility to convert between redundant |
161 |
(DRBD) and plain (LVM) disk configuration for an instance. This should |
162 |
allow better scalability (starting with one node and growing the |
163 |
cluster, or shrinking a two-node cluster to one node). |
164 |
|
165 |
A new feature that could help with automated node failovers has been |
166 |
implemented: if a node sees itself as offline (by querying the master |
167 |
candidates), it will try to shutdown (hard) all instances and any active |
168 |
DRBD devices. This reduces the risk of duplicate instances if an |
169 |
external script automatically failovers the instances on such nodes. To |
170 |
enable this, the cluster parameter ``maintain_node_health`` should be |
171 |
enabled; in the future this option (per the name) will enable other |
172 |
automatic maintenance features. |
173 |
|
174 |
Instance export/import now will reuse the original instance |
175 |
specifications for all parameters; that means exporting an instance, |
176 |
deleting it and the importing it back should give an almost identical |
177 |
instance. Note that the default import behaviour has changed from |
178 |
before, where it created only one NIC; now it recreates the original |
179 |
number of NICs. |
180 |
|
181 |
Cluster verify has added a few new checks: SSL certificates validity, |
182 |
/etc/hosts consistency across the cluster, etc. |
183 |
|
184 |
Other changes |
185 |
~~~~~~~~~~~~~ |
186 |
|
187 |
As usual, many internal changes were done, documentation fixes, |
188 |
etc. Among others: |
189 |
|
190 |
- Fixed cluster initialization with disabled cluster storage (regression |
191 |
introduced in 2.1.1) |
192 |
- File-based storage supports growing the disks |
193 |
- Fixed behaviour of node role changes |
194 |
- Fixed cluster verify for some corner cases, plus a general rewrite of |
195 |
cluster verify to allow future extension with more checks |
196 |
- Fixed log spamming by watcher and node daemon (regression introduced |
197 |
in 2.1.1) |
198 |
- Fixed possible validation issues when changing the list of enabled |
199 |
hypervisors |
200 |
- Fixed cleanup of /etc/hosts during node removal |
201 |
- Fixed RAPI response for invalid methods |
202 |
- Fixed bug with hashed passwords in ``ganeti-rapi`` daemon |
203 |
- Multiple small improvements to the KVM hypervisor (VNC usage, booting |
204 |
from ide disks, etc.) |
205 |
- Allow OS changes without re-installation (to record a changed OS |
206 |
outside of Ganeti, or to allow OS renames) |
207 |
- Allow instance creation without OS installation (useful for example if |
208 |
the OS will be installed manually, or restored from a backup not in |
209 |
Ganeti format) |
210 |
- Implemented option to make cluster ``copyfile`` use the replication |
211 |
network |
212 |
- Added list of enabled hypervisors to ssconf (possibly useful for |
213 |
external scripts) |
214 |
- Added a new tool (``tools/cfgupgrade12``) that allows upgrading from |
215 |
1.2 clusters |
216 |
- A partial form of node re-IP is possible via node readd, which now |
217 |
allows changed node primary IP |
218 |
- Command line utilities now show an informational message if the job is |
219 |
waiting for a lock |
220 |
- The logs of the master daemon now show the PID/UID/GID of the |
221 |
connected client |
222 |
|
223 |
|
224 |
Version 2.1.1 |
225 |
------------- |
226 |
|
227 |
*(Released Fri, 12 Mar 2010)* |
228 |
|
229 |
During the 2.1.0 long release candidate cycle, a lot of improvements and |
230 |
changes have accumulated with were released later as 2.1.1. |
231 |
|
232 |
Major changes |
233 |
~~~~~~~~~~~~~ |
234 |
|
235 |
The node evacuate command (``gnt-node evacuate``) was significantly |
236 |
rewritten, and as such the IAllocator protocol was changed - a new |
237 |
request type has been added. This unfortunate change during a stable |
238 |
series is designed to improve performance of node evacuations; on |
239 |
clusters with more than about five nodes and which are well-balanced, |
240 |
evacuation should proceed in parallel for all instances of the node |
241 |
being evacuated. As such, any existing IAllocator scripts need to be |
242 |
updated, otherwise the above command will fail due to the unknown |
243 |
request. The provided "dumb" allocator has not been updated; but the |
244 |
ganeti-htools package supports the new protocol since version 0.2.4. |
245 |
|
246 |
Another important change is increased validation of node and instance |
247 |
names. This might create problems in special cases, if invalid host |
248 |
names are being used. |
249 |
|
250 |
Also, a new layer of hypervisor parameters has been added, that sits at |
251 |
OS level between the cluster defaults and the instance ones. This allows |
252 |
customisation of virtualization parameters depending on the installed |
253 |
OS. For example instances with OS 'X' may have a different KVM kernel |
254 |
(or any other parameter) than the cluster defaults. This is intended to |
255 |
help managing a multiple OSes on the same cluster, without manual |
256 |
modification of each instance's parameters. |
257 |
|
258 |
A tool for merging clusters, ``cluster-merge``, has been added in the |
259 |
tools sub-directory. |
260 |
|
261 |
Bug fixes |
262 |
~~~~~~~~~ |
263 |
|
264 |
- Improved the int/float conversions that should make the code more |
265 |
robust in face of errors from the node daemons |
266 |
- Fixed the remove node code in case of internal configuration errors |
267 |
- Fixed the node daemon behaviour in face of inconsistent queue |
268 |
directory (e.g. read-only file-system where we can't open the files |
269 |
read-write, etc.) |
270 |
- Fixed the behaviour of gnt-node modify for master candidate demotion; |
271 |
now it either aborts cleanly or, if given the new โauto_promoteโ |
272 |
parameter, will automatically promote other nodes as needed |
273 |
- Fixed compatibility with (unreleased yet) Python 2.6.5 that would |
274 |
completely prevent Ganeti from working |
275 |
- Fixed bug for instance export when not all disks were successfully |
276 |
exported |
277 |
- Fixed behaviour of node add when the new node is slow in starting up |
278 |
the node daemon |
279 |
- Fixed handling of signals in the LUXI client, which should improve |
280 |
behaviour of command-line scripts |
281 |
- Added checks for invalid node/instance names in the configuration (now |
282 |
flagged during cluster verify) |
283 |
- Fixed watcher behaviour for disk activation errors |
284 |
- Fixed two potentially endless loops in http library, which led to the |
285 |
RAPI daemon hanging and consuming 100% CPU in some cases |
286 |
- Fixed bug in RAPI daemon related to hashed passwords |
287 |
- Fixed bug for unintended qemu-level bridging of multi-NIC KVM |
288 |
instances |
289 |
- Enhanced compatibility with non-Debian OSes, but not using absolute |
290 |
path in some commands and allowing customisation of the ssh |
291 |
configuration directory |
292 |
- Fixed possible future issue with new Python versions by abiding to the |
293 |
proper use of ``__slots__`` attribute on classes |
294 |
- Added checks that should prevent directory traversal attacks |
295 |
- Many documentation fixes based on feedback from users |
296 |
|
297 |
New features |
298 |
~~~~~~~~~~~~ |
299 |
|
300 |
- Added an โearly_releaseโ more for instance replace disks and node |
301 |
evacuate, where we release locks earlier and thus allow higher |
302 |
parallelism within the cluster |
303 |
- Added watcher hooks, intended to allow the watcher to restart other |
304 |
daemons (e.g. from the ganeti-nbma project), but they can be used of |
305 |
course for any other purpose |
306 |
- Added a compile-time disable for DRBD barriers, to increase |
307 |
performance if the administrator trusts the power supply or the |
308 |
storage system to not lose writes |
309 |
- Added the option of using syslog for logging instead of, or in |
310 |
addition to, Ganeti's own log files |
311 |
- Removed boot restriction for paravirtual NICs for KVM, recent versions |
312 |
can indeed boot from a paravirtual NIC |
313 |
- Added a generic debug level for many operations; while this is not |
314 |
used widely yet, it allows one to pass the debug value all the way to |
315 |
the OS scripts |
316 |
- Enhanced the hooks environment for instance moves (failovers, |
317 |
migrations) where the primary/secondary nodes changed during the |
318 |
operation, by adding {NEW,OLD}_{PRIMARY,SECONDARY} vars |
319 |
- Enhanced data validations for many user-supplied values; one important |
320 |
item is the restrictions imposed on instance and node names, which |
321 |
might reject some (invalid) host names |
322 |
- Add a configure-time option to disable file-based storage, if it's not |
323 |
needed; this allows greater security separation between the master |
324 |
node and the other nodes from the point of view of the inter-node RPC |
325 |
protocol |
326 |
- Added user notification in interactive tools if job is waiting in the |
327 |
job queue or trying to acquire locks |
328 |
- Added log messages when a job is waiting for locks |
329 |
- Added filtering by node tags in instance operations which admit |
330 |
multiple instances (start, stop, reboot, reinstall) |
331 |
- Added a new tool for cluster mergers, ``cluster-merge`` |
332 |
- Parameters from command line which are of the form ``a=b,c=d`` can now |
333 |
use backslash escapes to pass in values which contain commas, |
334 |
e.g. ``a=b\\c,d=e`` where the 'a' parameter would get the value |
335 |
``b,c`` |
336 |
- For KVM, the instance name is the first parameter passed to KVM, so |
337 |
that it's more visible in the process list |
338 |
|
339 |
|
340 |
Version 2.1.0 |
341 |
------------- |
342 |
|
343 |
*(Released Tue, 2 Mar 2010)* |
344 |
|
345 |
Ganeti 2.1 brings many improvements with it. Major changes: |
346 |
|
347 |
- Added infrastructure to ease automated disk repairs |
348 |
- Added new daemon to export configuration data in a cheaper way than |
349 |
using the remote API |
350 |
- Instance NICs can now be routed instead of being associated with a |
351 |
networking bridge |
352 |
- Improved job locking logic to reduce impact of jobs acquiring multiple |
353 |
locks waiting for other long-running jobs |
354 |
|
355 |
In-depth implementation details can be found in the Ganeti 2.1 design |
356 |
document. |
357 |
|
358 |
Details |
359 |
~~~~~~~ |
360 |
|
361 |
- Added chroot hypervisor |
362 |
- Added more options to xen-hvm hypervisor (``kernel_path`` and |
363 |
``device_model``) |
364 |
- Added more options to xen-pvm hypervisor (``use_bootloader``, |
365 |
``bootloader_path`` and ``bootloader_args``) |
366 |
- Added the ``use_localtime`` option for the xen-hvm and kvm |
367 |
hypervisors, and the default value for this has changed to false (in |
368 |
2.0 xen-hvm always enabled it) |
369 |
- Added luxi call to submit multiple jobs in one go |
370 |
- Added cluster initialization option to not modify ``/etc/hosts`` |
371 |
file on nodes |
372 |
- Added network interface parameters |
373 |
- Added dry run mode to some LUs |
374 |
- Added RAPI resources: |
375 |
|
376 |
- ``/2/instances/[instance_name]/info`` |
377 |
- ``/2/instances/[instance_name]/replace-disks`` |
378 |
- ``/2/nodes/[node_name]/evacuate`` |
379 |
- ``/2/nodes/[node_name]/migrate`` |
380 |
- ``/2/nodes/[node_name]/role`` |
381 |
- ``/2/nodes/[node_name]/storage`` |
382 |
- ``/2/nodes/[node_name]/storage/modify`` |
383 |
- ``/2/nodes/[node_name]/storage/repair`` |
384 |
|
385 |
- Added OpCodes to evacuate or migrate all instances on a node |
386 |
- Added new command to list storage elements on nodes (``gnt-node |
387 |
list-storage``) and modify them (``gnt-node modify-storage``) |
388 |
- Added new ssconf files with master candidate IP address |
389 |
(``ssconf_master_candidates_ips``), node primary IP address |
390 |
(``ssconf_node_primary_ips``) and node secondary IP address |
391 |
(``ssconf_node_secondary_ips``) |
392 |
- Added ``ganeti-confd`` and a client library to query the Ganeti |
393 |
configuration via UDP |
394 |
- Added ability to run hooks after cluster initialization and before |
395 |
cluster destruction |
396 |
- Added automatic mode for disk replace (``gnt-instance replace-disks |
397 |
--auto``) |
398 |
- Added ``gnt-instance recreate-disks`` to re-create (empty) disks |
399 |
after catastrophic data-loss |
400 |
- Added ``gnt-node repair-storage`` command to repair damaged LVM volume |
401 |
groups |
402 |
- Added ``gnt-instance move`` command to move instances |
403 |
- Added ``gnt-cluster watcher`` command to control watcher |
404 |
- Added ``gnt-node powercycle`` command to powercycle nodes |
405 |
- Added new job status field ``lock_status`` |
406 |
- Added parseable error codes to cluster verification (``gnt-cluster |
407 |
verify --error-codes``) and made output less verbose (use |
408 |
``--verbose`` to restore previous behaviour) |
409 |
- Added UUIDs to the main config entities (cluster, nodes, instances) |
410 |
- Added support for OS variants |
411 |
- Added support for hashed passwords in the Ganeti remote API users file |
412 |
(``rapi_users``) |
413 |
- Added option to specify maximum timeout on instance shutdown |
414 |
- Added ``--no-ssh-init`` option to ``gnt-cluster init`` |
415 |
- Added new helper script to start and stop Ganeti daemons |
416 |
(``daemon-util``), with the intent to reduce the work necessary to |
417 |
adjust Ganeti for non-Debian distributions and to start/stop daemons |
418 |
from one place |
419 |
- Added more unittests |
420 |
- Fixed critical bug in ganeti-masterd startup |
421 |
- Removed the configure-time ``kvm-migration-port`` parameter, this is |
422 |
now customisable at the cluster level for both the KVM and Xen |
423 |
hypervisors using the new ``migration_port`` parameter |
424 |
- Pass ``INSTANCE_REINSTALL`` variable to OS installation script when |
425 |
reinstalling an instance |
426 |
- Allowed ``@`` in tag names |
427 |
- Migrated to Sphinx (http://sphinx.pocoo.org/) for documentation |
428 |
- Many documentation updates |
429 |
- Distribute hypervisor files on ``gnt-cluster redist-conf`` |
430 |
- ``gnt-instance reinstall`` can now reinstall multiple instances |
431 |
- Updated many command line parameters |
432 |
- Introduced new OS API version 15 |
433 |
- No longer support a default hypervisor |
434 |
- Treat virtual LVs as inexistent |
435 |
- Improved job locking logic to reduce lock contention |
436 |
- Match instance and node names case insensitively |
437 |
- Reimplemented bash completion script to be more complete |
438 |
- Improved burnin |
439 |
|
440 |
|
441 |
Version 2.0.6 |
442 |
------------- |
443 |
|
444 |
*(Released Thu, 4 Feb 2010)* |
445 |
|
446 |
- Fix cleaner behaviour on nodes not in a cluster (Debian bug 568105) |
447 |
- Fix a string formatting bug |
448 |
- Improve safety of the code in some error paths |
449 |
- Improve data validation in the master of values returned from nodes |
450 |
|
451 |
|
452 |
Version 2.0.5 |
453 |
------------- |
454 |
|
455 |
*(Released Thu, 17 Dec 2009)* |
456 |
|
457 |
- Fix security issue due to missing validation of iallocator names; this |
458 |
allows local and remote execution of arbitrary executables |
459 |
- Fix failure of gnt-node list during instance removal |
460 |
- Ship the RAPI documentation in the archive |
461 |
|
462 |
|
463 |
Version 2.0.4 |
464 |
------------- |
465 |
|
466 |
*(Released Wed, 30 Sep 2009)* |
467 |
|
468 |
- Fixed many wrong messages |
469 |
- Fixed a few bugs related to the locking library |
470 |
- Fixed MAC checking at instance creation time |
471 |
- Fixed a DRBD parsing bug related to gaps in /proc/drbd |
472 |
- Fixed a few issues related to signal handling in both daemons and |
473 |
scripts |
474 |
- Fixed the example startup script provided |
475 |
- Fixed insserv dependencies in the example startup script (patch from |
476 |
Debian) |
477 |
- Fixed handling of drained nodes in the iallocator framework |
478 |
- Fixed handling of KERNEL_PATH parameter for xen-hvm (Debian bug |
479 |
#528618) |
480 |
- Fixed error related to invalid job IDs in job polling |
481 |
- Fixed job/opcode persistence on unclean master shutdown |
482 |
- Fixed handling of partial job processing after unclean master |
483 |
shutdown |
484 |
- Fixed error reporting from LUs, previously all errors were converted |
485 |
into execution errors |
486 |
- Fixed error reporting from burnin |
487 |
- Decreased significantly the memory usage of the job queue |
488 |
- Optimised slightly multi-job submission |
489 |
- Optimised slightly opcode loading |
490 |
- Backported the multi-job submit framework from the development |
491 |
branch; multi-instance start and stop should be faster |
492 |
- Added script to clean archived jobs after 21 days; this will reduce |
493 |
the size of the queue directory |
494 |
- Added some extra checks in disk size tracking |
495 |
- Added an example ethers hook script |
496 |
- Added a cluster parameter that prevents Ganeti from modifying of |
497 |
/etc/hosts |
498 |
- Added more node information to RAPI responses |
499 |
- Added a ``gnt-job watch`` command that allows following the ouput of a |
500 |
job |
501 |
- Added a bind-address option to ganeti-rapi |
502 |
- Added more checks to the configuration verify |
503 |
- Enhanced the burnin script such that some operations can be retried |
504 |
automatically |
505 |
- Converted instance reinstall to multi-instance model |
506 |
|
507 |
|
508 |
Version 2.0.3 |
509 |
------------- |
510 |
|
511 |
*(Released Fri, 7 Aug 2009)* |
512 |
|
513 |
- Added ``--ignore-size`` to the ``gnt-instance activate-disks`` command |
514 |
to allow using the pre-2.0.2 behaviour in activation, if any existing |
515 |
instances have mismatched disk sizes in the configuration |
516 |
- Added ``gnt-cluster repair-disk-sizes`` command to check and update |
517 |
any configuration mismatches for disk sizes |
518 |
- Added ``gnt-master cluste-failover --no-voting`` to allow master |
519 |
failover to work on two-node clusters |
520 |
- Fixed the ``--net`` option of ``gnt-backup import``, which was |
521 |
unusable |
522 |
- Fixed detection of OS script errors in ``gnt-backup export`` |
523 |
- Fixed exit code of ``gnt-backup export`` |
524 |
|
525 |
|
526 |
Version 2.0.2 |
527 |
------------- |
528 |
|
529 |
*(Released Fri, 17 Jul 2009)* |
530 |
|
531 |
- Added experimental support for stripped logical volumes; this should |
532 |
enhance performance but comes with a higher complexity in the block |
533 |
device handling; stripping is only enabled when passing |
534 |
``--with-lvm-stripecount=N`` to ``configure``, but codepaths are |
535 |
affected even in the non-stripped mode |
536 |
- Improved resiliency against transient failures at the end of DRBD |
537 |
resyncs, and in general of DRBD resync checks |
538 |
- Fixed a couple of issues with exports and snapshot errors |
539 |
- Fixed a couple of issues in instance listing |
540 |
- Added display of the disk size in ``gnt-instance info`` |
541 |
- Fixed checking for valid OSes in instance creation |
542 |
- Fixed handling of the "vcpus" parameter in instance listing and in |
543 |
general of invalid parameters |
544 |
- Fixed http server library, and thus RAPI, to handle invalid |
545 |
username/password combinations correctly; this means that now they |
546 |
report unauthorized for queries too, not only for modifications, |
547 |
allowing earlier detect of configuration problems |
548 |
- Added a new "role" node list field, equivalent to the master/master |
549 |
candidate/drained/offline flags combinations |
550 |
- Fixed cluster modify and changes of candidate pool size |
551 |
- Fixed cluster verify error messages for wrong files on regular nodes |
552 |
- Fixed a couple of issues with node demotion from master candidate role |
553 |
- Fixed node readd issues |
554 |
- Added non-interactive mode for ``ganeti-masterd --no-voting`` startup |
555 |
- Added a new ``--no-voting`` option for masterfailover to fix failover |
556 |
on two-nodes clusters when the former master node is unreachable |
557 |
- Added instance reinstall over RAPI |
558 |
|
559 |
|
560 |
Version 2.0.1 |
561 |
------------- |
562 |
|
563 |
*(Released Tue, 16 Jun 2009)* |
564 |
|
565 |
- added ``-H``/``-B`` startup parameters to ``gnt-instance``, which will |
566 |
allow re-adding the start in single-user option (regression from 1.2) |
567 |
- the watcher writes the instance status to a file, to allow monitoring |
568 |
to report the instance status (from the master) based on cached |
569 |
results of the watcher's queries; while this can get stale if the |
570 |
watcher is being locked due to other work on the cluster, this is |
571 |
still an improvement |
572 |
- the watcher now also restarts the node daemon and the rapi daemon if |
573 |
they died |
574 |
- fixed the watcher to handle full and drained queue cases |
575 |
- hooks export more instance data in the environment, which helps if |
576 |
hook scripts need to take action based on the instance's properties |
577 |
(no longer need to query back into ganeti) |
578 |
- instance failovers when the instance is stopped do not check for free |
579 |
RAM, so that failing over a stopped instance is possible in low memory |
580 |
situations |
581 |
- rapi uses queries for tags instead of jobs (for less job traffic), and |
582 |
for cluster tags it won't talk to masterd at all but read them from |
583 |
ssconf |
584 |
- a couple of error handling fixes in RAPI |
585 |
- drbd handling: improved the error handling of inconsistent disks after |
586 |
resync to reduce the frequency of "there are some degraded disks for |
587 |
this instance" messages |
588 |
- fixed a bug in live migration when DRBD doesn't want to reconnect (the |
589 |
error handling path called a wrong function name) |
590 |
|
591 |
|
592 |
Version 2.0.0 final |
593 |
------------------- |
594 |
|
595 |
*(Released Wed, 27 May 2009)* |
596 |
|
597 |
- no changes from rc5 |
598 |
|
599 |
|
600 |
Version 2.0 release candidate 5 |
601 |
------------------------------- |
602 |
|
603 |
*(Released Wed, 20 May 2009)* |
604 |
|
605 |
- fix a couple of bugs (validation, argument checks) |
606 |
- fix ``gnt-cluster getmaster`` on non-master nodes (regression) |
607 |
- some small improvements to RAPI and IAllocator |
608 |
- make watcher automatically start the master daemon if down |
609 |
|
610 |
|
611 |
Version 2.0 release candidate 4 |
612 |
------------------------------- |
613 |
|
614 |
*(Released Mon, 27 Apr 2009)* |
615 |
|
616 |
- change the OS list to not require locks; this helps with big clusters |
617 |
- fix ``gnt-cluster verify`` and ``gnt-cluster verify-disks`` when the |
618 |
volume group is broken |
619 |
- ``gnt-instance info``, without any arguments, doesn't run for all |
620 |
instances anymore; either pass ``--all`` or pass the desired |
621 |
instances; this helps against mistakes on big clusters where listing |
622 |
the information for all instances takes a long time |
623 |
- miscellaneous doc and man pages fixes |
624 |
|
625 |
|
626 |
Version 2.0 release candidate 3 |
627 |
------------------------------- |
628 |
|
629 |
*(Released Wed, 8 Apr 2009)* |
630 |
|
631 |
- Change the internal locking model of some ``gnt-node`` commands, in |
632 |
order to reduce contention (and blocking of master daemon) when |
633 |
batching many creation/reinstall jobs |
634 |
- Fixes to Xen soft reboot |
635 |
- No longer build documentation at build time, instead distribute it in |
636 |
the archive, in order to reduce the need for the whole docbook/rst |
637 |
toolchains |
638 |
|
639 |
|
640 |
Version 2.0 release candidate 2 |
641 |
------------------------------- |
642 |
|
643 |
*(Released Fri, 27 Mar 2009)* |
644 |
|
645 |
- Now the cfgupgrade scripts works and can upgrade 1.2.7 clusters to 2.0 |
646 |
- Fix watcher startup sequence, improves the behaviour of busy clusters |
647 |
- Some other fixes in ``gnt-cluster verify``, ``gnt-instance |
648 |
replace-disks``, ``gnt-instance add``, ``gnt-cluster queue``, KVM VNC |
649 |
bind address and other places |
650 |
- Some documentation fixes and updates |
651 |
|
652 |
|
653 |
Version 2.0 release candidate 1 |
654 |
------------------------------- |
655 |
|
656 |
*(Released Mon, 2 Mar 2009)* |
657 |
|
658 |
- More documentation updates, now all docs should be more-or-less |
659 |
up-to-date |
660 |
- A couple of small fixes (mixed hypervisor clusters, offline nodes, |
661 |
etc.) |
662 |
- Added a customizable HV_KERNEL_ARGS hypervisor parameter (for Xen PVM |
663 |
and KVM) |
664 |
- Fix an issue related to $libdir/run/ganeti and cluster creation |
665 |
|
666 |
|
667 |
Version 2.0 beta 2 |
668 |
------------------ |
669 |
|
670 |
*(Released Thu, 19 Feb 2009)* |
671 |
|
672 |
- Xen PVM and KVM have switched the default value for the instance root |
673 |
disk to the first partition on the first drive, instead of the whole |
674 |
drive; this means that the OS installation scripts must be changed |
675 |
accordingly |
676 |
- Man pages have been updated |
677 |
- RAPI has been switched by default to HTTPS, and the exported functions |
678 |
should all work correctly |
679 |
- RAPI v1 has been removed |
680 |
- Many improvements to the KVM hypervisor |
681 |
- Block device errors are now better reported |
682 |
- Many other bugfixes and small improvements |
683 |
|
684 |
|
685 |
Version 2.0 beta 1 |
686 |
------------------ |
687 |
|
688 |
*(Released Mon, 26 Jan 2009)* |
689 |
|
690 |
- Version 2 is a general rewrite of the code and therefore the |
691 |
differences are too many to list, see the design document for 2.0 in |
692 |
the ``doc/`` subdirectory for more details |
693 |
- In this beta version there is not yet a migration path from 1.2 (there |
694 |
will be one in the final 2.0 release) |
695 |
- A few significant changes are: |
696 |
|
697 |
- all commands are executed by a daemon (``ganeti-masterd``) and the |
698 |
various ``gnt-*`` commands are just front-ends to it |
699 |
- all the commands are entered into, and executed from a job queue, |
700 |
see the ``gnt-job(8)`` manpage |
701 |
- the RAPI daemon supports read-write operations, secured by basic |
702 |
HTTP authentication on top of HTTPS |
703 |
- DRBD version 0.7 support has been removed, DRBD 8 is the only |
704 |
supported version (when migrating from Ganeti 1.2 to 2.0, you need |
705 |
to migrate to DRBD 8 first while still running Ganeti 1.2) |
706 |
- DRBD devices are using statically allocated minor numbers, which |
707 |
will be assigned to existing instances during the migration process |
708 |
- there is support for both Xen PVM and Xen HVM instances running on |
709 |
the same cluster |
710 |
- KVM virtualization is supported too |
711 |
- file-based storage has been implemented, which means that it is |
712 |
possible to run the cluster without LVM and DRBD storage, for |
713 |
example using a shared filesystem exported from shared storage (and |
714 |
still have live migration) |
715 |
|
716 |
|
717 |
Version 1.2.7 |
718 |
------------- |
719 |
|
720 |
*(Released Tue, 13 Jan 2009)* |
721 |
|
722 |
- Change the default reboot type in ``gnt-instance reboot`` to "hard" |
723 |
- Reuse the old instance mac address by default on instance import, if |
724 |
the instance name is the same. |
725 |
- Handle situations in which the node info rpc returns incomplete |
726 |
results (issue 46) |
727 |
- Add checks for tcp/udp ports collisions in ``gnt-cluster verify`` |
728 |
- Improved version of batcher: |
729 |
|
730 |
- state file support |
731 |
- instance mac address support |
732 |
- support for HVM clusters/instances |
733 |
|
734 |
- Add an option to show the number of cpu sockets and nodes in |
735 |
``gnt-node list`` |
736 |
- Support OSes that handle more than one version of the OS api (but do |
737 |
not change the current API in any other way) |
738 |
- Fix ``gnt-node migrate`` |
739 |
- ``gnt-debug`` man page |
740 |
- Fixes various more typos and small issues |
741 |
- Increase disk resync maximum speed to 60MB/s (from 30MB/s) |
742 |
|
743 |
|
744 |
Version 1.2.6 |
745 |
------------- |
746 |
|
747 |
*(Released Wed, 24 Sep 2008)* |
748 |
|
749 |
- new ``--hvm-nic-type`` and ``--hvm-disk-type`` flags to control the |
750 |
type of disk exported to fully virtualized instances. |
751 |
- provide access to the serial console of HVM instances |
752 |
- instance auto_balance flag, set by default. If turned off it will |
753 |
avoid warnings on cluster verify if there is not enough memory to fail |
754 |
over an instance. in the future it will prevent automatically failing |
755 |
it over when we will support that. |
756 |
- batcher tool for instance creation, see ``tools/README.batcher`` |
757 |
- ``gnt-instance reinstall --select-os`` to interactively select a new |
758 |
operating system when reinstalling an instance. |
759 |
- when changing the memory amount on instance modify a check has been |
760 |
added that the instance will be able to start. also warnings are |
761 |
emitted if the instance will not be able to fail over, if auto_balance |
762 |
is true. |
763 |
- documentation fixes |
764 |
- sync fields between ``gnt-instance list/modify/add/import`` |
765 |
- fix a race condition in drbd when the sync speed was set after giving |
766 |
the device a remote peer. |
767 |
|
768 |
|
769 |
Version 1.2.5 |
770 |
------------- |
771 |
|
772 |
*(Released Tue, 22 Jul 2008)* |
773 |
|
774 |
- note: the allowed size and number of tags per object were reduced |
775 |
- fix a bug in ``gnt-cluster verify`` with inconsistent volume groups |
776 |
- fixed twisted 8.x compatibility |
777 |
- fixed ``gnt-instance replace-disks`` with iallocator |
778 |
- add TCP keepalives on twisted connections to detect restarted nodes |
779 |
- disk increase support, see ``gnt-instance grow-disk`` |
780 |
- implement bulk node/instance query for RAPI |
781 |
- add tags in node/instance listing (optional) |
782 |
- experimental migration (and live migration) support, read the man page |
783 |
for ``gnt-instance migrate`` |
784 |
- the ``ganeti-watcher`` logs are now timestamped, and the watcher also |
785 |
has some small improvements in handling its state file |
786 |
|
787 |
|
788 |
Version 1.2.4 |
789 |
------------- |
790 |
|
791 |
*(Released Fri, 13 Jun 2008)* |
792 |
|
793 |
- Experimental readonly, REST-based remote API implementation; |
794 |
automatically started on master node, TCP port 5080, if enabled by |
795 |
``--enable-rapi`` parameter to configure script. |
796 |
- Instance allocator support. Add and import instance accept a |
797 |
``--iallocator`` parameter, and call that instance allocator to decide |
798 |
which node to use for the instance. The iallocator document describes |
799 |
what's expected from an allocator script. |
800 |
- ``gnt-cluster verify`` N+1 memory redundancy checks: Unless passed the |
801 |
``--no-nplus1-mem`` option ``gnt-cluster verify`` now checks that if a |
802 |
node is lost there is still enough memory to fail over the instances |
803 |
that reside on it. |
804 |
- ``gnt-cluster verify`` hooks: it is now possible to add post-hooks to |
805 |
``gnt-cluster verify``, to check for site-specific compliance. All the |
806 |
hooks will run, and their output, if any, will be displayed. Any |
807 |
failing hook will make the verification return an error value. |
808 |
- ``gnt-cluster verify`` now checks that its peers are reachable on the |
809 |
primary and secondary interfaces |
810 |
- ``gnt-node add`` now supports the ``--readd`` option, to readd a node |
811 |
that is still declared as part of the cluster and has failed. |
812 |
- ``gnt-* list`` commands now accept a new ``-o +field`` way of |
813 |
specifying output fields, that just adds the chosen fields to the |
814 |
default ones. |
815 |
- ``gnt-backup`` now has a new ``remove`` command to delete an existing |
816 |
export from the filesystem. |
817 |
- New per-instance parameters hvm_acpi, hvm_pae and hvm_cdrom_image_path |
818 |
have been added. Using them you can enable/disable acpi and pae |
819 |
support, and specify a path for a cd image to be exported to the |
820 |
instance. These parameters as the name suggest only work on HVM |
821 |
clusters. |
822 |
- When upgrading an HVM cluster to Ganeti 1.2.4, the values for ACPI and |
823 |
PAE support will be set to the previously hardcoded values, but the |
824 |
(previously hardcoded) path to the CDROM ISO image will be unset and |
825 |
if required, needs to be set manually with ``gnt-instance modify`` |
826 |
after the upgrade. |
827 |
- The address to which an instance's VNC console is bound is now |
828 |
selectable per-instance, rather than being cluster wide. Of course |
829 |
this only applies to instances controlled via VNC, so currently just |
830 |
applies to HVM clusters. |
831 |
|
832 |
|
833 |
Version 1.2.3 |
834 |
------------- |
835 |
|
836 |
*(Released Mon, 18 Feb 2008)* |
837 |
|
838 |
- more tweaks to the disk activation code (especially helpful for DRBD) |
839 |
- change the default ``gnt-instance list`` output format, now there is |
840 |
one combined status field (see the manpage for the exact values this |
841 |
field will have) |
842 |
- some more fixes for the mac export to hooks change |
843 |
- make Ganeti not break with DRBD 8.2.x (which changed the version |
844 |
format in ``/proc/drbd``) (issue 24) |
845 |
- add an upgrade tool from "remote_raid1" disk template to "drbd" disk |
846 |
template, allowing migration from DRBD0.7+MD to DRBD8 |
847 |
|
848 |
|
849 |
Version 1.2.2 |
850 |
------------- |
851 |
|
852 |
*(Released Wed, 30 Jan 2008)* |
853 |
|
854 |
- fix ``gnt-instance modify`` breakage introduced in 1.2.1 with the HVM |
855 |
support (issue 23) |
856 |
- add command aliases infrastructure and a few aliases |
857 |
- allow listing of VCPUs in the ``gnt-instance list`` and improve the |
858 |
man pages and the ``--help`` option of ``gnt-node |
859 |
list``/``gnt-instance list`` |
860 |
- fix ``gnt-backup list`` with down nodes (issue 21) |
861 |
- change the tools location (move from $pkgdatadir to $pkglibdir/tools) |
862 |
- fix the dist archive and add a check for including svn/git files in |
863 |
the future |
864 |
- some developer-related changes: improve the burnin and the QA suite, |
865 |
add an upload script for testing during development |
866 |
|
867 |
|
868 |
Version 1.2.1 |
869 |
------------- |
870 |
|
871 |
*(Released Wed, 16 Jan 2008)* |
872 |
|
873 |
- experimental HVM support, read the install document, section |
874 |
"Initializing the cluster" |
875 |
- allow for the PVM hypervisor per-instance kernel and initrd paths |
876 |
- add a new command ``gnt-cluster verify-disks`` which uses a new |
877 |
algorithm to improve the reconnection of the DRBD pairs if the device |
878 |
on the secondary node has gone away |
879 |
- make logical volume code auto-activate LVs at disk activation time |
880 |
- slightly improve the speed of activating disks |
881 |
- allow specification of the MAC address at instance creation time, and |
882 |
changing it later via ``gnt-instance modify`` |
883 |
- fix handling of external commands that generate lots of output on |
884 |
stderr |
885 |
- update documentation with regard to minimum version of DRBD8 supported |
886 |
|
887 |
|
888 |
Version 1.2.0 |
889 |
------------- |
890 |
|
891 |
*(Released Tue, 4 Dec 2007)* |
892 |
|
893 |
- Log the ``xm create`` output to the node daemon log on failure (to |
894 |
help diagnosing the error) |
895 |
- In debug mode, log all external commands output if failed to the logs |
896 |
- Change parsing of lvm commands to ignore stderr |
897 |
|
898 |
|
899 |
Version 1.2b3 |
900 |
------------- |
901 |
|
902 |
*(Released Wed, 28 Nov 2007)* |
903 |
|
904 |
- Another round of updates to the DRBD 8 code to deal with more failures |
905 |
in the replace secondary node operation |
906 |
- Some more logging of failures in disk operations (lvm, drbd) |
907 |
- A few documentation updates |
908 |
- QA updates |
909 |
|
910 |
|
911 |
Version 1.2b2 |
912 |
------------- |
913 |
|
914 |
*(Released Tue, 13 Nov 2007)* |
915 |
|
916 |
- Change configuration file format from Python's Pickle to JSON. |
917 |
Upgrading is possible using the cfgupgrade utility. |
918 |
- Add support for DRBD 8.0 (new disk template ``drbd``) which allows for |
919 |
faster replace disks and is more stable (DRBD 8 has many improvements |
920 |
compared to DRBD 0.7) |
921 |
- Added command line tags support (see man pages for ``gnt-instance``, |
922 |
``gnt-node``, ``gnt-cluster``) |
923 |
- Added instance rename support |
924 |
- Added multi-instance startup/shutdown |
925 |
- Added cluster rename support |
926 |
- Added ``gnt-node evacuate`` to simplify some node operations |
927 |
- Added instance reboot operation that can speedup reboot as compared to |
928 |
stop and start |
929 |
- Soften the requirement that hostnames are in FQDN format |
930 |
- The ``ganeti-watcher`` now activates drbd pairs after secondary node |
931 |
reboots |
932 |
- Removed dependency on debian's patched fping that uses the |
933 |
non-standard ``-S`` option |
934 |
- Now the OS definitions are searched for in multiple, configurable |
935 |
paths (easier for distros to package) |
936 |
- Some changes to the hooks infrastructure (especially the new |
937 |
post-configuration update hook) |
938 |
- Other small bugfixes |
939 |
|
940 |
.. vim: set textwidth=72 : |
941 |
.. Local Variables: |
942 |
.. mode: rst |
943 |
.. fill-column: 72 |
944 |
.. End: |