Commit Graph

362 Commits

Author SHA1 Message Date
Thomas Schoebel-Theuer ce48d7031c all: fix hang of NotYetPrimary in lower emergency modes 2014-12-07 09:24:16 +01:00
Thomas Schoebel-Theuer 7366cb9dad light: fix leave-cluster communication 2014-12-07 09:24:16 +01:00
Thomas Schoebel-Theuer aa09d7df30 all: clarify license GPLv2+ 2014-11-25 18:09:17 +01:00
Benjamin Kübler bab6b76bec marsadm: silence log-rotate and log-delete-all by default 2014-11-12 16:27:08 +01:00
Thomas Schoebel-Theuer ee2f544994 marsadm: start 'primary' handover after fetch has completed 2014-11-12 09:01:34 +01:00
Thomas Schoebel-Theuer 04c8985961 marsadm: fix split brain prevention on handover 2014-11-12 09:01:34 +01:00
Thomas Schoebel-Theuer 9ad2664d3c marsadm: fix forgotten unlinks in {invalidate,leave-resource} 2014-11-12 09:01:34 +01:00
Thomas Schoebel-Theuer 1b4805464a marsadm: workaround concept bug in _get_actual_primary(), deprecate it
The conceptual bug was leading to systematic false-positive failures in the
old test_suite. These failures were depeding on the _names_ of the
involved hosts: just run it on a pair of differently named hosts
following different naming conventions, and 50 out of 90 testcases
were failing false-positively.
2014-11-12 09:01:34 +01:00
Thomas Schoebel-Theuer 743e81a541 marsadm: fix incomplete syslog messaging 2014-11-12 09:01:34 +01:00
Thomas Schoebel-Theuer 34ea0c53f3 marsadm: fix sync check 2014-11-12 09:01:34 +01:00
Thomas Schoebel-Theuer c2a17bd641 marsadm: fix wait-cluster condition 2014-11-12 09:01:34 +01:00
Thomas Schoebel-Theuer b381837fb7 marsadm: disallow ill-formed cmdline options for safety 2014-11-12 09:01:34 +01:00
Thomas Schoebel-Theuer 04dadb50ef marsadm: fix leave-cluster 2014-09-04 09:15:27 +02:00
Thomas Schoebel-Theuer 2f9786ee8b marsadm: add 'C' flag 2014-08-30 08:24:49 +02:00
Thomas Schoebel-Theuer 70d29ed509 marsadm: fix invalidate when loaded during split-brain 2014-08-30 08:24:48 +02:00
Thomas Schoebel-Theuer 11e6e33764 marsadm: fix hang in wait-umount at split brain 2014-08-29 10:28:02 +02:00
Thomas Schoebel-Theuer 438e5ff0a4 marsadm: fix is-consistent for secondaries 2014-08-27 15:47:31 +02:00
Thomas Schoebel-Theuer 71768cc002 marsadm: always create predecessor versionlink upon create-resource 2014-08-18 10:33:08 +02:00
Thomas Schoebel-Theuer b749ed561c userspace: add bugfix for Debian udev rules
Patch received from Jörg Mann by email.

Some Debian versions seem to have typos in their udev rules.
As a consequence, /dev/mars/mydata does not disappear when
leaving primary state.

Other consequences might also exist. In an unreproduced case the
/dev/mars/ object was unlinked while the mount was continuously
active, without causing any harm to operations (besides that
xfs_growfs did not work, which led to the discovery of the
mysterious situation).

Probably the udev userspace may require further fixes.

Fortunately, udev-less systems (as those used by me for testing) are
not affected.
2014-03-31 06:59:10 +02:00
Thomas Schoebel-Theuer 9799fe5417 marsadm: fix usage 2014-03-31 06:59:10 +02:00
Thomas Schoebel-Theuer 36081e51d8 marsadm: show IP only with --verbose 2014-03-31 06:59:10 +02:00
Thomas Schoebel-Theuer 6050b4157f infra: make string allocation fully dynamic 2014-03-26 11:43:05 +01:00
Thomas Schoebel-Theuer 5371c87f4e marsadm: disable file-based warnings by default 2014-03-20 07:55:23 +01:00
Thomas Schoebel-Theuer 8bd0564564 marsadm: implement new 'view' command 2014-03-19 17:49:40 +01:00
Thomas Schoebel-Theuer 15a9d20fff marsadm: prefer 'fetch' over 'connect' 2014-03-19 17:49:40 +01:00
Thomas Schoebel-Theuer 084e56bc96 marsadm: new get-link 2014-03-19 17:49:40 +01:00
Thomas Schoebel-Theuer 2fc05b5373 light: allow limiting the sync parallelism 2014-03-19 17:49:40 +01:00
Thomas Schoebel-Theuer 11bc9f2e91 marsadm: path correction / systematic naming conventions 2014-03-19 17:49:40 +01:00
Thomas Schoebel-Theuer 0edca689bf marsadm: allow omission of nanoseconds 2014-03-19 17:49:39 +01:00
Thomas Schoebel-Theuer 9340f70c36 light: add info symlinks 2014-03-19 17:49:39 +01:00
Thomas Schoebel-Theuer 2ce5e2aad7 light: add per-resource emergency mode 2014-03-19 17:49:39 +01:00
Thomas Schoebel-Theuer e0a123e827 marsadm: move global variables 2014-03-19 11:44:57 +01:00
Thomas Schoebel-Theuer 1cb78bae47 marsadm: fix warning 2014-03-19 11:30:24 +01:00
Thomas Schoebel-Theuer a43181a84f marsadm: fix split brain detection 2014-03-19 11:30:24 +01:00
Thomas Schoebel-Theuer 1715b4fd40 marsadm: fix recursion depth of _get_common_ancestor() 2014-03-19 11:30:24 +01:00
Thomas Schoebel-Theuer 0d5349b2ca marsadm: fix transitive closure for log_purge_res() 2014-03-19 11:30:24 +01:00
Thomas Schoebel-Theuer 2ec9800d54 marsadm: fix leave-resource 2014-03-19 11:30:24 +01:00
Thomas Schoebel-Theuer a16875fcfe marsadm: prevent only _new_ split brains 2014-03-19 11:30:24 +01:00
Thomas Schoebel-Theuer e78d0a3078 light: fix peer preferences, use connect-* links 2014-03-19 11:30:24 +01:00
Thomas Schoebel-Theuer 223467f37f marsadm: disallow intended primary switch when secondaries are syncing 2014-03-19 11:30:24 +01:00
Thomas Schoebel-Theuer 59cce71e2d marsadm: fix fake_versionlink()
Always fake two versionslinks instead of one.
2014-03-19 11:30:24 +01:00
Thomas Schoebel-Theuer 528b72b0c0 light: fix potential race on deletions 2014-03-19 11:30:23 +01:00
Thomas Schoebel-Theuer 3e9aae53c8 all: fix potential buffer overflows, use vscnprintf() 2014-03-19 11:30:23 +01:00
Thomas Schoebel-Theuer dc535711c8 marsadm: fix leave-resource --force 2014-02-07 09:11:07 +01:00
Thomas Schoebel-Theuer 4c36e803f3 marsadm: add --ip=, fix IP detection 2014-02-06 07:15:09 +01:00
Thomas Schoebel-Theuer c6a3753c1d marsadm: fix --dry-run 2014-02-04 14:29:28 +01:00
Thomas Schoebel-Theuer 73c32a2f83 marsadm: make device detection more robust 2014-02-03 15:07:45 +01:00
Thomas Schoebel-Theuer e38225a74c marsadm: fix non-monotony of logfile sequence numbers 2014-02-03 15:07:45 +01:00
Thomas Schoebel-Theuer a11b63a8b2 marsadm: allow create-resource on pre-existing resource directory 2014-02-03 15:07:45 +01:00
Thomas Schoebel-Theuer 7fa62145b5 marsadm: fix resource destruction via 'delete-resource' 2014-02-03 15:07:45 +01:00
Thomas Schoebel-Theuer b3a1d7ffa2 marsadm: fix _fake_versionlink() after /mars/ full 2014-02-03 15:07:44 +01:00
Thomas Schoebel-Theuer 63171f66ae marsadm: log-purge-all for split brain resolution in desperate cases 2014-02-03 15:07:44 +01:00
Thomas Schoebel-Theuer 06f5e42ae6 marsadm: introduce --dry-run 2014-02-03 15:07:44 +01:00
Thomas Schoebel-Theuer 2fee916477 marsadm: fix 'secondary' when not locally primary 2014-02-03 15:07:44 +01:00
Thomas Schoebel-Theuer 4e17138003 light: make detach/down more robust against following commands
Immediately stop syncing when rource should go down.
2014-02-03 15:07:44 +01:00
Thomas Schoebel-Theuer 9e54983283 marsadm: fix split brain detection 2014-02-03 15:07:44 +01:00
Thomas Schoebel-Theuer 00d4713aff marsadm: fix set-link source 2014-02-03 15:07:44 +01:00
Thomas Schoebel-Theuer c7fa35ae5f marsadm: fix delete-file --force 2014-02-03 15:07:44 +01:00
Thomas Schoebel-Theuer ab1723f306 marsadm: fix lamport warning when mars.ko is not loaded 2014-02-03 15:07:44 +01:00
Thomas Schoebel-Theuer 059abe866b marsadm: fix lamport timestamp substitute when mars.ko is unloaded 2014-02-03 15:07:44 +01:00
Thomas Schoebel-Theuer 202afe0fc4 marsadm: fix spelling 2014-02-03 15:07:44 +01:00
Thomas Schoebel-Theuer 49c13052f7 marsadm: try to avoid split brain on primary switching 2014-02-03 15:07:43 +01:00
Thomas Schoebel-Theuer 2b71a212de marsadm: use stderr for errors and warnings 2014-02-03 15:06:36 +01:00
Thomas Schoebel-Theuer f9ea0132f3 marsadm: 'primary' denies waiting for device during split brain 2014-02-03 15:06:36 +01:00
Thomas Schoebel-Theuer d5e3b4e1f1 marsadm: fix split brain detection 2014-02-03 15:06:36 +01:00
Thomas Schoebel-Theuer 07bd8db714 marsadm: fix call of localtime() in old perl versions 2014-02-03 15:06:35 +01:00
Thomas Schoebel-Theuer 7ad628a725 light: create detailed warn message in userspace 2014-02-03 15:06:34 +01:00
Thomas Schoebel-Theuer 6755b8e4b8 marsadm: remove superfluous _get_former_primary()
This cannot work in case of split brain.
Therefore, some primary must be designated always explicitly.
2014-02-03 15:06:34 +01:00
Thomas Schoebel-Theuer adf79307af marsadm: skip sequence number check on every jump 2014-02-03 15:06:34 +01:00
Thomas Schoebel-Theuer a144e5f93b marsadm: always update timestamp of primary symlink 2014-02-03 15:06:34 +01:00
Thomas Schoebel-Theuer afbf794e1a marsadm: fix version links in 'invalidate' 2014-02-03 15:06:34 +01:00
Thomas Schoebel-Theuer 3b757354c3 marsadm: fix faking new versionlink on join-resource 2014-02-03 15:06:34 +01:00
Thomas Schoebel-Theuer a3c429fdd1 marsadm: remove all version links at leave-resource 2014-02-03 15:06:34 +01:00
Thomas Schoebel-Theuer 860ec8d37a marsadm: reject join-resource if no primary is designated 2014-01-23 11:56:36 +01:00
Thomas Schoebel-Theuer 7fff95b560 marsadm: better error message at failed 'invalidate' 2014-01-23 11:56:35 +01:00
Thomas Schoebel-Theuer a26198d97e marsadm: wait for devices to {dis,}appear even on {prim,second}ary --force 2014-01-23 11:56:35 +01:00
Thomas Schoebel-Theuer 767bb03060 marsadm: allow overrides of "marsadm secondary" in disconnected clusters
When the communication is down in partitioned clusters, the command
"marsadm seconodary" would normally use the current timestamp of
the command execution for the Lamport update protocol.

Make an exception for the case that a concurrent "marsadm primary"
was given somewhere else on a disconnected / partitioned node: let
the "primary" always win over a "secondary" command.
2014-01-23 11:56:35 +01:00
Thomas Schoebel-Theuer c861a0d202 marsadm: disallow 'primary --force' in connected state
DRBD does not allow to deliberately provoke a SPLIT BRAIN
in connected state.

Thus MARS Light cannot be required to support such silly things
in any way.
2014-01-23 11:56:35 +01:00
Thomas Schoebel-Theuer c84caa6bf4 marsadm: print warnings when SPLIT BRAIN is detected 2014-01-23 11:56:35 +01:00
Thomas Schoebel-Theuer 4c94d82caa marsadm: early abort is-device-on when not designated primary 2014-01-23 11:56:35 +01:00
Thomas Schoebel-Theuer 6798580065 marsadm: do resource checks only once per command 2014-01-23 11:56:35 +01:00
Thomas Schoebel-Theuer da3652bba9 marsadm: reject invalidate earlier when no primary is designated 2014-01-23 11:56:35 +01:00
Thomas Schoebel-Theuer 561bf67a55 marsadm: wait for deletions after leave-resource 2014-01-23 11:56:35 +01:00
Thomas Schoebel-Theuer 216ecbffde marsadm: prevent mutual overwrite of delete symlinks
Add an (unused) host context. Previously, concurrent
log-delete operations triggered by cron could lead to
unnecessary loss of deletetion symlinks.
2014-01-23 11:56:35 +01:00
Thomas Schoebel-Theuer c379a5e88f marsadm: remove superfluous connect links 2014-01-23 11:56:35 +01:00
Joerg Mann 8cee26a02f monitoring: mars-status update, add zabbix template
- add zabbix template, cronjob and config
2013-12-12 08:31:07 +01:00
Joerg Mann fa8f8bdb0c mars-status: fixes, rewrite version- and linkcheck, add historyview
Signed-off-by: Thomas Schoebel-Theuer <schoebel@bell.site>
2013-11-06 14:43:09 +01:00
Frank Liepold 02558d5ab0 marsadm: correct message
Signed-off-by: Thomas Schoebel-Theuer <tst@1und1.de>
2013-10-22 09:40:06 +02:00
Frank Liepold 5766d22e6b marsadm: invalidate does not delete logfiles or version links anymore
Signed-off-by: Thomas Schoebel-Theuer <tst@1und1.de>
2013-10-22 09:40:06 +02:00
Frank Liepold 83361f0745 marsadm: leave-resource removes logfiles and version links of the resource
Signed-off-by: Thomas Schoebel-Theuer <tst@1und1.de>
2013-10-22 09:40:06 +02:00
Thomas Schoebel-Theuer 94e1ac2ad0 all: remove internal URLs 2013-08-02 11:45:21 +02:00
Frank Liepold 820708e712 marsadm: command down includes disconnect
Fixes the following bug:
marsadm down does not disconnect the resource.
2013-07-29 16:30:10 +02:00
Frank Liepold e3db28c4d7 marsadm: correct wrong condition for checking exclusive access
The fixed bug was introduced in commit:

marsadm: 'create-resource' --force no longer checks for exclusive access
2013-07-25 09:12:46 +02:00
Frank Liepold 2e441d0d11 marsadm: use lamport clock as mtime of symbolic links
Fixes the following bug:
Symbolic links which are created in userspace get the current time
as mtime.
2013-07-25 08:42:27 +02:00
Thomas Schoebel-Theuer 0d8d637dee marsadm: 'create-resource' --force no longer checks for exclusive access 2013-07-22 08:44:03 +02:00
Frank Liepold 08d4f863ff marsadm: command secondary must not change primary link if executed on a secondary
Fixes the bug, that marsadm secondary sets the link <resource_dir>/primary
to (none) even if executed on a secondary host.
2013-07-22 08:44:03 +02:00
Thomas Schoebel-Theuer ddf28af52d marsadm: fix 'invalidate' racing against replay 2013-07-22 08:44:03 +02:00
Thomas Schoebel-Theuer 637ec3fc4e tools: new checking tool write-reboot.c
Use this for testing the power blackout safety.
2013-07-04 09:06:36 +02:00
Thomas Schoebel-Theuer e6a39cf313 tools: add provisionary logfile import/export (HACKERS ONLY)
Use this for testing or for repair if you are extremely desperate.
This is not yet end-user friendly.
2013-07-04 09:06:36 +02:00
Thomas Schoebel-Theuer 295b0f4ada marsadm: relax precondition for create-resource 2013-07-04 07:21:01 +02:00
Thomas Schoebel-Theuer e0d980223b marsadm: wait-cluster has-device waits for actual device appearance 2013-07-04 07:21:01 +02:00
Thomas Schoebel-Theuer 269c53d565 marsadm: make 'wait-connect' an alias to 'wait-resource' 2013-07-04 07:21:00 +02:00
Thomas Schoebel-Theuer 228a464c8a marsadm: mark "verify" as forbidden
It would be dangerous since DRBD semantics are not implemented.
2013-07-04 07:21:00 +02:00
Thomas Schoebel-Theuer 45f462026f marsadm: fix leave-resource cleanup
Now the sequence leave-resource ; join-resource should work.

When the last member of the resource has gone and create-resource is
tried anew, there is a new saftey measure: the old resource directory
is left over deliberately, thus the new create-resource will deny creation
because some unreachable cluster node may have existed, such that we
didn't even know of its resource membership. This very special
case requires --force and some handwork cleanup.
2013-07-04 07:21:00 +02:00
Frank Liepold 62b016d4cc marsadm: set syncstatus link on primary after marsadm resize 2013-07-04 07:21:00 +02:00
Daniel Hermann e0ed98eb14 marsadm: secondary waits until device has disappeared
Signed-off-by: Thomas Schoebel-Theuer <tst@1und1.de>
2013-06-29 21:15:17 +02:00
Thomas Schoebel-Theuer fd39137cc9 marsadm: 'secondary' waits until device has disappeared 2013-06-20 15:08:28 +02:00
Thomas Schoebel-Theuer 15c76e9ffb marsadm: check block device for exclusive access in {create,join}-resource 2013-06-20 15:08:28 +02:00
Thomas Schoebel-Theuer 84bb63ccc8 marsadm: remove potentially dangerous internal _create_cluster() call 2013-06-20 15:08:28 +02:00
Thomas Schoebel-Theuer eec86bf1af marsadm: create initial versionlink upon create-resource 2013-06-20 15:08:28 +02:00
Thomas Schoebel-Theuer e7edf0020e marsadm: workaround race between create-resource and join-resource 2013-06-20 15:08:28 +02:00
Thomas Schoebel-Theuer dab34fa2f6 marsadm: new command 'set-link' 2013-06-20 15:08:28 +02:00
Thomas Schoebel-Theuer cacea6d673 marsadm: abort 'primary' operation upon errors 2013-06-20 15:08:28 +02:00
Thomas Schoebel-Theuer 2ab837cf09 marsadm: augment 'wait-resource' with specific wait conditions 2013-06-20 15:08:28 +02:00
Thomas Schoebel-Theuer ea286c6da1 marsadm: add new option --host= 2013-06-20 15:08:28 +02:00
Thomas Schoebel-Theuer dca17cb9b1 marsadm: change defaults for *{,-local,-global}
By default, {dis}connect and {pause,resume}-{replay,sync} should
only switch the _local_ buttons. Otherwise, unexpected side-effects
could result at bigger clusters (#nodes >> 2) from a human point of view.

The new behaviour is different from DRBD, but DRBD was (until recently)
only working on _pairs_, so global spreadout was impossible.

Global switching may be requested at any time by appending suffix
"-global", which is just no longer the default in MARS.

If anyone has objections, it is straightforward to change the
defaults again.
2013-06-20 15:08:28 +02:00
Thomas Schoebel-Theuer fc0e6baa01 marsadm: new command delete-file 2013-06-20 15:08:28 +02:00
Thomas Schoebel-Theuer 3f6d1d8858 marsadm: report errors during wait for primary 2013-06-20 15:08:27 +02:00
Thomas Schoebel-Theuer 6c3d225f1d marsadm: fix detection of /mars/ directory 2013-06-20 15:08:27 +02:00
Thomas Schoebel-Theuer 60adc8a1c5 marsadm: fix versionlink creation on freshly joined resource 2013-06-20 15:08:27 +02:00
Thomas Schoebel-Theuer 99a8800b03 marsadm: fix 'invalidate', split into phases 2013-06-20 15:08:27 +02:00
Thomas Schoebel-Theuer fca84e9417 marsadm: optional size argument for 'create-resource' 2013-06-20 15:08:27 +02:00
Thomas Schoebel-Theuer ab08291124 marsadm: fix join-cluster 2013-06-20 15:08:27 +02:00
Thomas Schoebel-Theuer 396ec7f0f9 marsadm: fix leave-resource, split into phases 2013-06-20 15:08:27 +02:00
Thomas Schoebel-Theuer 7187462a6e marsadm: add global uuid to cluster 2013-06-20 15:08:27 +02:00
Thomas Schoebel-Theuer a1920494b4 marsadm: new commands {cat,show-{info,errors}} 2013-06-20 15:08:27 +02:00
Thomas Schoebel-Theuer 62a2dea515 marsadm: remove timestamp functions
Timestamps of symlinks are used for Lamport comparison
(any newer one overwrites any older one).

That concept should _not_ be used for any other comparison, since
there is no / not yet any "transactional" property of
bulk updates of symlinks (the Lamport condition treats each
symlink independently from any other).

Until such "transactions" are introduced at the strategy layer,
timestamp comparisons between _different_ symlinks are
unmeaningful in general.
2013-06-20 15:08:27 +02:00
Thomas Schoebel-Theuer e9035548a4 marsadm: split {{at,de}tach,up,down} into phases 2013-06-20 15:08:27 +02:00
Thomas Schoebel-Theuer 0e15b38457 marsadm: add new commands 'wait-{cluster,resource}' 2013-06-03 09:05:46 +02:00
Thomas Schoebel-Theuer 359c039445 marsadm: add new command 'wait-umount' 2013-06-03 09:05:46 +02:00
Thomas Schoebel-Theuer 0953801a6e marsadm: fix primary detection
The actual-*/is-primary symlink may race with the appearance
of the device. Use both conditions to be sure.
2013-06-03 09:05:46 +02:00
Thomas Schoebel-Theuer 2dd3033ff4 marsadm: split command "primary" into phases 2013-06-03 09:05:46 +02:00
Thomas Schoebel-Theuer dab60da817 marsadm: allow calling multiple functions in phases
Add infrastructure for splitting commands in multiple phases.
Usually, phase0 will check for some preconditions, while
phase1 will execute the command. The final result will only
be committed if nothing fails.

The difference to the old behaviour will only show up when combined
with 'all' resources. If anything fails in phase0, nothing will be
touched in phase1. The old behaviour could touch some resources,
but omit others when something failed.

The new behaviour is more transactional-like.
2013-06-03 09:05:46 +02:00
Thomas Schoebel-Theuer 14e9582e93 marsadm: fix join-resource 2013-05-13 12:50:29 +02:00
Thomas Schoebel-Theuer 4690deb873 marsadm: check attach state 2013-05-13 12:50:29 +02:00
Thomas Schoebel-Theuer 0bab62f434 marsadm: fix detection of incompatible versions 2013-05-13 12:50:29 +02:00
Thomas Schoebel-Theuer b7c1900820 marsadm: use Lamport time for symlink creation 2013-05-13 12:50:29 +02:00
Thomas Schoebel-Theuer 30f97cd23f light: fix symlink deletion 2013-05-13 12:50:29 +02:00
Thomas Schoebel-Theuer ca07c9a763 marsadm: fix log-delete{,-all} 2013-05-13 12:50:29 +02:00
Thomas Schoebel-Theuer 77fdc4cc1a marsadm: improve check_* routines 2013-05-13 12:50:29 +02:00
Thomas Schoebel-Theuer 6964573aa3 marsadm: disallow resize to smaller size 2013-05-13 12:50:29 +02:00
Thomas Schoebel-Theuer b0c09061e9 marsadm: allow only multiples of 4k as size arguments 2013-04-25 22:32:37 +02:00
Thomas Schoebel-Theuer 46f815f54e marsadm: add optional size argument to resize command 2013-04-25 16:06:18 +02:00
Thomas Schoebel-Theuer 8d93439dcb marsadm: add new command 'set-replay' 2013-04-22 14:40:24 +02:00
Thomas Schoebel-Theuer 22f75b9d71 marsadm: rewrite / correct symlink faking 2013-04-22 14:40:24 +02:00
Thomas Schoebel-Theuer 03f418c2c7 marsadm: improve message texts and parameter semantics 2013-04-22 11:50:07 +02:00
Thomas Schoebel-Theuer 8f081105fd marsadm: fix distinction _get_{designated,actual}_primary 2013-04-22 11:48:50 +02:00
Thomas Schoebel-Theuer 109eed06f3 marsadm: fix and unify readlink() usage 2013-04-22 11:48:50 +02:00
Thomas Schoebel-Theuer 78c7c307ea marsadm: fix primary checks 2013-04-22 11:48:50 +02:00
Daniel Hermann 92951e491b marsadm: improve primary/secondary command behaviour
Previously, the 'marsadm primary' and 'marsadm secondary' commands
were successful as soon as the target primary was successfully set
to the new primary or '(none)', respectively.  This commit appends
a check to wait until the primary is really changed (actual state).

Changes in marsadm:
- Added check_primary_settled() function
- Do not use local variable named '$host' in _primary_res() since
  a global variable with same name exists.
- Do not use/set global variable '$host' in primary_res().  Use
  local variable '$new' initially set to '$host' instead.
- Make 'secondary' command idempotent ("is already secondary")
- Call trigger() and check_primary_settled() in primary_res()

Related minor changes:
- marsadm: Added optional parameter 'sleeptime' to sleep_timeout()
- Removed debug output in check_file_aged()

Signed-off-by: Thomas Schoebel-Theuer <tst@1und1.de>
2013-04-18 10:09:15 +02:00