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Commit Graph

138 Commits

Author SHA1 Message Date
Petr Rockai
241e84f79d Only announce mirror monitoring to syslog after initialisation succeeds. 2009-10-22 10:40:41 +00:00
Alasdair Kergon
ae1e83aa94 Attempt to build dmeventd.static. 2009-10-13 02:35:26 +00:00
Alasdair Kergon
902c4069dc More build cleanups (linker parameter ordering). 2009-10-13 01:31:10 +00:00
Alasdair Kergon
79aa89a62a Extra libs must be appended, not defined first. 2009-10-09 16:04:54 +00:00
Alasdair Kergon
437219e27d More makefile cleaning up and fixing. (gentoo) 2009-10-05 13:46:00 +00:00
Alasdair Kergon
db8b5af9d9 Allow for a build directory separate from the source. 2009-10-02 19:10:31 +00:00
Alasdair Kergon
cf8ee443e5 Fix dmeventd _temporary_log_fn parameters. (2.02.50) 2009-09-17 10:37:23 +00:00
Mikulas Patocka
3395d72881 Change exit() to _exit() in the child process. exit flushes stdio file buffers,
_exit doesn't. If there were some open files, an error in exec and subsequent
exit() would cause the buffers to be flushed twice.

Example:

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/wait.h>

int main()
{
	printf("buu");
	if (!fork()) {
		execl("/bin/true-not-exists", "/bin/true", NULL);
		exit(1);
	}
	wait(NULL);
	return 0;
}

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com

---
 daemons/dmeventd/libdevmapper-event.c |    2 +-
 lib/misc/lvm-exec.c                   |    2 +-
 test/harness.c                        |    3 ++-
 tools/dmsetup.c                       |    2 +-
 4 files changed, 5 insertions(+), 4 deletions(-)
2009-07-13 21:26:41 +00:00
Alasdair Kergon
476d463348 pre-release tidy up 2009-06-30 18:39:31 +00:00
Petr Rockai
1f164ad9d0 - Ignore suspended devices during repair (Milan).
- Call vgreduce --removemissing (without --force) automatically to clean up bad
  PVs (Milan).
2009-06-15 14:47:39 +00:00
Milan Broz
01fb9ca9a0 Do not fork daemon when dmeventd cannot be found. 2009-06-15 12:29:41 +00:00
Milan Broz
c26488d348 Use lvconvert --repair instead of vgreduce in mirror dmeventd DSO (mornfall)
Introduce lvconvert --use_policies (mornfall)
2009-06-04 12:01:15 +00:00
Alasdair Kergon
450928e304 Revert:
Use lvconvert --repair in dmeventd mirror DSO.
for now.

It replaces bad behaviour in one set of circumstances with bad behaviour
in a different set.  We think the behaviour needs to be more configurable.
2009-05-20 22:24:48 +00:00
Milan Broz
ac0034c20f Use lvconvert --repair in dmeventd DSO (mornfall)
This means two things:

1) Non-mirrored LVs will be no longer affected by mirror monitoring. (Before,
if you had a LV that went partially missing on a VG where a mirror leg failed,
this LV would be removed automatically by dmeventd... Probably not an
unrecoverable dataloss bug, but still quite unpleasant.)

2) If enough parallel PV space is available at the time of the mirror failure,
the failed devices will be automatically replaced using this spare space. Which
(and whether) free space may be used is still not configurable, but is a
planned feature. Since it is relatively easy to undo the action by converting
the mirror manually, I don't consider this to be a showstopper. In fact, I
think the compromise is much better than what we have now.
2009-05-19 10:25:16 +00:00
Milan Broz
0b502933c5 Introduce lvm2_install target.
Buildsystem support device-mapper only install,
but generic install tagret includes both dm+lvm2.

For distribution which uses separate install_device-mapper,
there is no way how to install lvm2 only
(so after installing lvm2 for packaging purposes
built system must remove installed device-mapper files).

Fix it by allowing lvm2_install target, similarily like
install_cluster for clvmd.

(install = install_device-mapper + install_lvm2)
2009-05-11 10:28:45 +00:00
Milan Broz
be82186cba Do not use generic install if running install_device-mapper.
It propagates into subdirs which includes DSOs which requires
lvm2 build (only install_device-mapper should propagate there).
2009-05-11 10:12:35 +00:00
Zdenek Kabelac
beeae21dbb Do not create some dm and lvm static librarie when they are not requested
by configure option
Add dependency for static dmeventd library
2009-04-08 14:04:35 +00:00
Alasdair Kergon
77b69aa724 make install_device-mapper 2008-11-04 17:25:32 +00:00
Alasdair Kergon
a479de2e75 dmeventd 2008-11-04 15:55:27 +00:00
Alasdair Kergon
56d8844068 more fixes 2008-11-04 15:07:45 +00:00
Alasdair Kergon
d4b9af444c more tweaks for dmeventd - not finished yet 2008-11-03 23:01:21 +00:00
Alasdair Kergon
2c44337bd5 Right, a simple build (without options) is working again. 2008-11-03 22:14:30 +00:00
Milan Broz
ffc4a05bda Fix snapshot monitoring library to not cancel monitoring invalid snapshot.
snapshot DSO unregistered itself when snapshot changed state to invalid.

This can cause a race (and several timeouts), when for example another snapshot
is added and in the middle of operation (suspend/resume) the monitoring thread
unregister itself.

Fix it by keeping the snapshot monitored after invalidation - just reset
threshold to not really print any messages to syslog.
2008-10-13 12:06:30 +00:00
Milan Broz
550463b5e1 Fix mirror DSO to call vgreduce with proper parameters. 2008-09-25 15:52:29 +00:00
Petr Rockai
8153260792 Add #include <signal.h> to dmeventd.c, fixes compilation on NetBSD. 2008-07-09 13:26:07 +00:00
Petr Rockai
2a9a80c9bb Fix dmeventd regression where mirror and snapshot monitoring libraries
failed to link against liblvm2cmd.

Dmeventd DSOs *require* lvm2cmd to be linked in.

For the future:
1) AC_SUBST does not create Makefile variables, only @foo@-style substitutions
2) When using `test', whitespace around `=' is essential:
    test a=b is true, as is test a=a
2008-07-09 09:59:42 +00:00
Zdenek Kabelac
c454025a0f Added generation of the versioned libdevmapper-event.so for LVM's test 2008-06-27 15:36:51 +00:00
Jim Meyering
aa4d1e3106 avoid link failure when configuring without --enable-cmdlib
* configure.in (LVM2CMD_LIB): Define if --enable-cmdlib.
* dmeventd/mirror/Makefile.in (CLDFLAGS): Use $(LVM2CMD_LIB) rather
than hard-coding -llvm2cmd.
* dmeventd/snapshot/Makefile.in (CLDFLAGS): Likewise.
2008-06-23 09:25:08 +00:00
Alasdair Kergon
4e9083db10 Fix mirror log name construction during lvconvert. (2.02.30)
Make monitor_dev_for_events recurse through the stack of LVs.
Clean up some more compiler warnings.
Add mirror names test script.
2008-01-31 12:19:36 +00:00
Petr Rockai
a98a2d4a4e Amend previous commit. * does not match .files... 2008-01-09 15:33:25 +00:00
Petr Rockai
67961c7c10 Add snapshot dmeventd library (enables dmeventd snapshot monitoring). 2008-01-09 15:32:19 +00:00
Petr Rockai
cd1a7e80c0 Fix a possible double-free in libdevmapper-event. 2007-11-27 12:26:06 +00:00
Jim Meyering
7f8f8bfa09 Correct typo in comments: s/is part of the LVM2/is part of LVM2/.
Signed-off-by: Jim Meyering <jim@meyering.net>


Author: Jim Meyering <jim@meyering.net>
2007-09-21 10:16:45 +00:00
Alasdair Kergon
147d5faccf Fix inconsistent licence notices: executables are GPLv2; libraries LGPLv2.1. 2007-08-21 16:26:07 +00:00
Alasdair Kergon
27c7135097 Use NULL not 0.
Remove worthless comment.
2007-08-05 00:13:02 +00:00
Petr Rockai
674cfe8071 Fix a possible segfault in libdevmapper-event. Thanks to Brian J. Wood
for noticing this.
2007-08-02 22:31:59 +00:00
Jim Meyering
f28fd56f76 libdevmapper, dmeventd: be paranoid about detecting write failure
* dmeventd/dmeventd.c (_set_oom_adj): When writing to /proc/self/oom_adj,
detect failure even if it's hidden behind ferror.  [Using dm_fclose's
extra ferror test here is probably not needed, since the amount written
is nowhere near BUFSIZ, but use it regardless, for consistency. ]
* lib/fs/libdevmapper.c (do_suspend): Detect fclose failure when
writing to suspend.
2007-07-24 14:16:48 +00:00
Alasdair Kergon
1bf5aae913 Change some #include lines to search only standard system directories. 2007-04-27 17:46:16 +00:00
Petr Rockai
6e23a8aa20 Fix the regression introduced by dmeventd leak fixes. 2007-04-24 13:29:02 +00:00
Petr Rockai
727f266227 Fix some memory leaks in dmeventd. 2007-04-23 15:06:03 +00:00
Milan Broz
0329281b49 Fix libdevmapper-event memory leaks 2007-04-19 19:10:19 +00:00
Alasdair Kergon
c2784df48f Remove unnecessary memset() return value checks. [Jim Meyering] 2007-03-16 14:36:14 +00:00
Alasdair Kergon
112d09deb1 Improve dmeventd messaging protocol: drain pipe and tag messages. 2007-02-02 17:08:51 +00:00
Alasdair Kergon
aca043364e dmeventd mirror sets ignore_suspended_devices and avoids scanning mirrors. 2007-01-25 23:32:29 +00:00
Alasdair Kergon
232da7ecc7 Add some missing close() and fclose() return value checks. 2007-01-25 14:16:20 +00:00
Alasdair Kergon
3329c69865 Add private variable to dmeventd shared library interface. 2007-01-23 17:40:40 +00:00
Alasdair Kergon
d28dfb5720 add a dso-private variable to dmeventd interface
more inline docn
2007-01-23 17:38:39 +00:00
Alasdair Kergon
4dcaa2300c Add dm_event_handler_[gs]et_timeout functions.
Streamline dm_report_field_* interface.
2007-01-22 15:03:57 +00:00
Alasdair Kergon
8bbec04d5b var dev_name->device_name (lvm2 has dev_name()) 2007-01-19 20:42:09 +00:00
Alasdair Kergon
919ab64fdb fix exit status; always print message on child failure 2007-01-19 18:08:36 +00:00