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mirror of git://sourceware.org/git/lvm2.git synced 2025-01-21 22:04:19 +03:00

266 Commits

Author SHA1 Message Date
Zdenek Kabelac
c4da860fd5 Synchronize with self-destruction of dmeventd
In some occasional case dmevent restart was experiencing problems
with obtaining pid lockfile. So this patch tries to send several more kill
message until daemon kills itself so there is would reponse.
With this small loop the restart seems to work reliable,
although the loopsize and usleep are just randomly picked for now.
2012-04-24 12:25:12 +00:00
Jonathan Earl Brassow
6a69a4472d Commit ID 46a75dedb4f6aa815a804f27cafbd3fd16a62011 consolidated code from the
various dmeventd plug-ins into a new function called 'dmeventd_lvm2_command',
but the new function did not strip off the "_mlog" extentions that the
mirror plug-in had been doing.  This created bug 794904 - failure to replace
devices in a redundant log.

The test suite did catch this scenario because it performs repair tests (mainly)
through the CLI and not dmeventd.  It's also not easy to test because the test
itself will hang if the bug is encountered.
2012-04-10 23:34:41 +00:00
Zdenek Kabelac
3ac8509b99 Update debug message
(compiled only with special debug define)
2012-03-23 09:39:59 +00:00
Zdenek Kabelac
6e7d2724ba Fix check for passed in path for dmeventd startup
Check passed in executable path for dmeventd instead of predefined
compiled in path which is not the thing to be executed.
2012-03-20 17:38:47 +00:00
Peter Rajnoha
d7bcb6e117 Remove dmeventd fifos on exit if they are not managed by systemd. 2012-03-15 08:45:55 +00:00
Peter Rajnoha
23a88f868d Use SD_ACTIVATION env. var. in systemd units to better detect systemd in use.
LISTEN_PID and LISTEN_FDS environment variables are defined only during systemd
"start" action. But we still need to know whether we're activated during
"reload" action as well - we use the reload action to call "dmeventd -R"/"lvmetad -R"
for statefull daemon restart. We can't use normal "restart" as that is simply
composed of "stop" and "start" and we would lose any state the daemon has.
2012-03-14 15:51:51 +00:00
Peter Rajnoha
4a01bb64fb Do not run a new dmeventd instance on restart if there's no existing one. 2012-03-14 11:16:00 +00:00
Zdenek Kabelac
91c0dc527b We need longer window for checking read from fifo.
Seems like some dmeventd startups are taking more time then expected,
so make the time window longer here.
2012-03-12 14:46:53 +00:00
Milan Broz
06a9a4e867 Remove some whitespaces.
(test commit)
2012-03-10 09:32:46 +00:00
Zdenek Kabelac
e18ea55fef Code refactoring
Properly test for dm_asprintf result.
Keep unlocking of mutex in the same function and do not spread lock and
unlock over functions.
2012-03-02 23:01:10 +00:00
Zdenek Kabelac
00422596c1 List _thread_registry missed mutex
Operation on _thread_registry needs to be covered by mutex.
Cosmetic move a die code after free for valgind short leak list.
2012-03-02 22:57:25 +00:00
Zdenek Kabelac
59c71b93ad Skip zero length messages
In case of zero length message, there would be a memory leak on
return path from _do_process_request.
2012-03-01 22:54:17 +00:00
Zdenek Kabelac
1eb1626f08 Improve logging
Use %m for strerror.
Switch to use 0 for fail return code.
2012-03-01 22:06:18 +00:00
Zdenek Kabelac
0b60d3a05e Few more close and dev_close trace
Adding (void) where we cannot really report an error.
2012-03-01 21:12:37 +00:00
Zdenek Kabelac
fa750fd0c5 More useful debug message 2012-03-01 10:41:48 +00:00
Zdenek Kabelac
f5de369e04 Log fail of pthread_join
Syslog error outside of mutex section.
2012-03-01 09:50:04 +00:00
Alasdair Kergon
ba23f9e71f Reflect new file locations, include file updates etc. 2012-02-28 18:35:04 +00:00
Zdenek Kabelac
c998f7d27a Better detection of missing dmeventd fifo connection 2012-02-28 11:03:24 +00:00
Zdenek Kabelac
49d8753caf Add log_sys_error for close 2012-02-28 10:14:06 +00:00
Zdenek Kabelac
95ad3abc76 Add FIXME for misuse in case of dm_event_mask enum.
Using enum for bitmask is not proper solution here.
2012-02-27 11:46:25 +00:00
Peter Rajnoha
7ed9336202 Systemd is linux-specific - move the supporting code under the 'ifdef linux'.
Some 'defines' used in this specific code were already under an ifdef so this
patch just completes it.
2012-02-27 11:13:51 +00:00
Petr Rockai
002f7a0ce2 The lvmetad client-side integration. Only active when use_lvmetad = 1 is set in
lvm.conf *and* lvmetad is running.
2012-02-23 13:11:07 +00:00
Zdenek Kabelac
735a00a152 Detect failing fifo
If the fifo died because of dmeventd restart - do not wait for 20s
in select  - it will not get better and return error immediately.
2012-02-15 13:56:47 +00:00
Zdenek Kabelac
27d46fc686 Make sure dereferenced words[0] and words[1] are defined 2012-02-13 14:17:04 +00:00
Zdenek Kabelac
afed769d42 Check for missing reply_uuid 2012-02-13 11:24:09 +00:00
Zdenek Kabelac
a140caa666 Check for allocation failure 2012-02-13 11:18:45 +00:00
Zdenek Kabelac
777a797ec3 Fix message check
Check pointer from strchr for NULL instead of crash later.
Badly formated message would have crash dmeventd otherwise.
2012-02-10 15:17:52 +00:00
Zdenek Kabelac
c966f07bbd Remove unreachable code 2012-02-10 13:46:23 +00:00
Zdenek Kabelac
7940545204 Remove unneeded assignments
Variables have (or will have) those values set.
2012-02-08 11:36:18 +00:00
Zdenek Kabelac
6e40adde76 Add boundary test for number of mirror devs and logs
As atoi may return negative value - test for both limits.
Test log_args for limits before calling alloca().
Code from dmeventd mirror plugin should probably share same code as
we have in mirrored.c.
2012-02-08 11:29:13 +00:00
Petr Rockai
a3ac5a54d0 Remove a dubious log message ("another thread is handling an event") from LVM
dmeventd plugins. Fixes RHBZ 771419.
2012-02-01 20:11:58 +00:00
Zdenek Kabelac
76b1e2d9b1 Thin forgotten initialisation of pointer to NULL
Since the code may go in error path, set to defined NULL.
2012-01-20 10:59:26 +00:00
Zdenek Kabelac
a1224b2da8 Thin use consistentely metadata
Do not shortcut to 'meta' and stay with 'metadata'
Also matches kernel doc for dm API then.
2012-01-19 15:21:23 +00:00
Zdenek Kabelac
46a75dedb4 Use new dmeventd_lvm2_command function in dmeventd plugins.
For snapshot, prepare whole command in front into private buffer.
Add also some missing '\n' for syslog messages.
For raid and mirror only convert creation of command line string.
This should avoid any unbound growth of mempool for dm_split_names.
2011-12-22 16:37:01 +00:00
Zdenek Kabelac
f4cb382829 Thin use helper function
Fix some minor outstading issue from thin plugin introduction -
Call dmeventd_lvm2_exit() in failpath for registration.
Add some missing '\n' in syslog messages.
2011-12-22 15:57:29 +00:00
Zdenek Kabelac
c06fdae782 Add helper function dmeventd_lvm2_command().
Since this code is in all plugins - create a common helper function.
2011-12-22 15:55:21 +00:00
Zdenek Kabelac
47bc4f5191 Updated documentation for dmeventd.
Update man page style.
Mention raid and thin plugins.
Update help text printed by command to match man page.
2011-12-22 15:50:38 +00:00
Zdenek Kabelac
e906e9a160 Exported functions from thin plugin 2011-12-21 13:42:07 +00:00
Zdenek Kabelac
59bcd5a1cf Thin add dmeventd support
This is basic version with still few unresolved issue mainly in case,
when the pool resize is failing.
2011-12-21 13:08:11 +00:00
Zdenek Kabelac
b0f1e29335 Fix missing thread list manipulation
For manipulation with thread list to avoid race with timeout thread,
take also _timeout_mutex.
2011-12-21 13:03:06 +00:00
Jonathan Earl Brassow
49d06db518 Add policy based automated repair of RAID logical volumes
The RAID plug-in for dmeventd now calls 'lvconvert --repair' to address failures
of devices in a RAID logical volume.  The action taken can be either to "warn"
or "allocate" a new device from any spares that may be available in the
volume group.  The action is designated by setting 'raid_fault_policy' in
lvm.conf - the default being "warn".
2011-12-06 19:30:15 +00:00
Petr Rockai
e0c7b65690 Fix a bug in dmeventd snapshot monitoring code where the monitoring threshold
would grow with subsequent snapshot extensions (RHBZ 754198).
2011-11-21 12:31:18 +00:00
Alasdair Kergon
dd815a4f7b Make dmsetup.static and lvm.static build when dmeventd is disabled.
udev may also need to be disabled if you didn't build it statically too.

dmeventd.static could be fixed with some more work but I don't really see the
point: without dlopen() it's useless, and if you have dlopen(), why not support
normal shared libraries too?
2011-11-14 21:30:35 +00:00
Petr Rockai
9f4ef9fda6 Remove a redundant (and in some cases, misleading) message about snapshot
extension, in the snapshot dmeventd plugin. The reporting is done as needed by
the LVM command nowadays.
2011-10-19 14:31:49 +00:00
Petr Rockai
6de64854a8 Keep the LVM-based dmeventd plugins from trying to manipulate the dmeventd
monitoring state of the logical volumes they are currently acting on.

Until now, every time a logical volume has been changed by a dmeventd plugin,
this plugin would have called back to dmeventd through the external FIFO
mechanism. I am fairly sure this was superfluous, inefficient and possibly even
dangerous.
2011-10-19 08:46:26 +00:00
Zdenek Kabelac
8deff7018a Drop cleanup of .exported_symbols_generated in DISTCLEAN_TARGETS
Makefile cosmetics - since .exported_symbols_generated in cleardir:
target via make.tmpl, there is no need to set them in DISTCLEAN_TARGETS.
2011-09-24 21:00:52 +00:00
Zdenek Kabelac
f89aa98af5 Keep the old-style function definition 2011-09-14 09:53:32 +00:00
Zdenek Kabelac
0b97ce28d6 Fix resource leak when strdup fails
Static analyzer noticed, strdup failing path leaks dmt structure.
2011-08-31 08:23:05 +00:00
Alasdair Kergon
9a9dde2d8c pre-release fixes incl make distclean and configure --with-raid=none/shared 2011-08-11 19:18:17 +00:00
Jonathan Earl Brassow
9c3fd6948b Add dmeventd monitoring for RAID devices. 2011-08-11 05:00:20 +00:00