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Code Releases Activity
13,165 Commits 426 Branches 667 Tags 54 MiB
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148 Commits

Author SHA1 Message Date
Heinz Mauelshagen
5d455b28fc lvconvert: fix (automatic) raid repair regression 
The dm-raid target now rejects device rebuild requests during ongoing
resynchronization thus causing 'lvconvert --repair ...' to fail with
a kernel error message. This regresses with respect to failing automatic
repair via the dmeventd RAID plugin in case raid_fault_policy="allocate"
is configured in lvm.conf as well.

Previously allowing such repair request required cancelling the
resynchronization of any still accessible DataLVs, hence reasoning
potential data loss.

Patch allows the resynchronization of still accessible DataLVs to
finish up by rejecting any 'lvconvert --repair ...'.

It enhances the dmeventd RAID plugin to be able to automatically repair
by postponing the repair after synchronization ended.

More tests are added to lvconvert-rebuild-raid.sh to cover single
and multiple DataLV failure cases for the different RAID levels.

- resolves: rhbz1371717
 2016-09-21 00:39:29 +02:00
Zdenek Kabelac
6064a5084e cleanup: clean gcc6 minor/major types warnings 
Put sys/sysmacros.h in front of sys/types.h header file as requested
by gcc6 part II.
 2016-09-07 16:42:34 +02:00
Zdenek Kabelac
b26604c8d8 dmeventd: typo and debug name fix 
Fix 'raw' -> 'row' fix.
Consitently use thin pool as a type of monitored device in info message.
 2016-08-31 11:13:59 +02:00
Zdenek Kabelac
adc1fe4b3f dmeventd: improved logged messages from thin plugin 
Show better names in logged messages.
 2016-07-04 17:40:24 +02:00
Zdenek Kabelac
2f638e07e8 dmeventd: thin plugin umount over 95% 
Run umount code only when either thin data or metadata are
above 95% - so if there are resize failures with 60%.
system fill keep running.

Also umount will only be tried with lvm2 LVs.
Foreign users are ATM unsuppored.
 2016-07-01 00:43:45 +02:00
Zdenek Kabelac
1be74cfd7f cleanup: gcc warn about comparing int with uint 2016-04-12 11:47:51 +02:00
Alasdair G Kergon
1216efdf15 activate: Use macros for target and module names. 2016-03-22 17:46:15 +00:00
Zdenek Kabelac
2e168a52b0 coverity: drop unneeded header 2016-02-23 21:40:12 +01:00
Zdenek Kabelac
fcbef05aae doc: change fsf address 
Hmm rpmlint suggest fsf is using a different address these days,
so lets keep it up-to-date
 2016-01-21 12:11:37 +01:00
Zdenek Kabelac
68e2ea11a3 mirror: fix condition 
Recent patch tested wrong condition for error
 2015-12-01 13:59:20 +01:00
Zdenek Kabelac
86e7894ecc cleanup: use dm_get_status_mirror 
Use libdm function to parse mirror status report.
 2015-12-01 13:03:16 +01:00
Zdenek Kabelac
099466939e thin: dmeventd plugin check number of failures 
If plugin's lvm command execution fails too often (>10 times),
there is no point to torture system more then necessary, just log
and drop monitoring in this case.
 2015-10-29 12:14:20 +01:00
Zdenek Kabelac
1a7bea0f0f cleanup: drop debug 2015-10-23 10:54:13 +02:00
Zdenek Kabelac
1a2d0a0c72 cleanup: indents 2015-10-22 22:46:10 +02:00
Zdenek Kabelac
aeec62ad19 dmeventd: snapshot plugin unmonitor 
Send signal to itself to mark plugin as 'finished' as
the watching rule is no longer usable.
 2015-10-22 22:41:12 +02:00
Zdenek Kabelac
fa9e41d2e3 dmeventd: thin plugin update 
Use  dm_make_percent for percentage calculation like lvm2 command.

Use a single call for resize.
 2015-10-22 22:33:07 +02:00
Zdenek Kabelac
6b0bc5b2d9 dmeventd: snapshot plugin device removal 
Add #ifdef-ed code to have ability to even remove unusable device.
For now purely experimental.
 2015-10-22 22:29:53 +02:00
Zdenek Kabelac
7ff5b03e5e dmeventd: snapshot plugin updates 
Improve test for invalid snapshot.

Use dm_make_percent() to manipulate with exactly same percentage
as lvm2 command is using.
 2015-10-22 22:29:50 +02:00
Zdenek Kabelac
91350f5c6a dmeventd: mirror plugin update 
Don't use  --config  - this requires reload of lvm.conf
 2015-10-22 22:28:37 +02:00
Zdenek Kabelac
9c5c9e2355 dmeventd: raid plugin reporting 
Fix raid logging introduced with last updating commit.
 2015-10-22 22:28:37 +02:00
Zdenek Kabelac
cde12cbe9e dmeventd: lvm2 plugin correctly debug 
Fix debug message and report exit when really doing it.
Also add missing '_' to static function.
 2015-10-22 22:28:37 +02:00
Zdenek Kabelac
a6d1c8ac65 dmeventd: use matching function 
Respect lvm2_log_fn prototype. The idea of 'reusing' print_log with
plain cast is causing very strange crashes with some older 'gcc'  compilers.
So just do it cleanly...
 2015-10-14 14:25:27 +02:00
Zdenek Kabelac
3f1a3b7090 dmeventd: fix missing '!' 
During recent code changes '!' was badly converted.
 2015-10-13 22:10:47 +02:00
Zdenek Kabelac
4b586ad3c2 dmeventd: rework raid plugin 
Switch to per-thread mem-pool and lock only for lvm2 calls.
Use libdm parser for raid status line.
 2015-10-13 16:02:19 +02:00
Zdenek Kabelac
256e432e78 dmeventd: less locking mirror 
Rework mirror plugin to use per-thread mem-pool.
This allows to use locking only for lvm2 library calls.
 2015-10-13 16:02:18 +02:00
Zdenek Kabelac
51ff7d5ed8 dmeventd: less locking for snapshot and thin 
Use lvm lock for lvm library calls.

dm functions in-use are 'thread-safe' since we use
local per-thread mem pool.
 2015-10-13 16:01:41 +02:00
Zdenek Kabelac
49e11102c7 dmeventd: add local mempool for raid and mirror 
Using local mempools allows to drop locks when such memory is needed.
 2015-10-13 15:56:23 +02:00
Zdenek Kabelac
a11cd2ca2d dmeventd: use new macros to init mempool 
For thin and snapshot use new macros
to simplify mempool init and destroy
 2015-10-13 15:56:03 +02:00
Zdenek Kabelac
f9926e7e6c dmeventd: introduce macro for init 
Simplify commonly used pool creation.
 2015-10-13 15:56:03 +02:00
Zdenek Kabelac
09a8479cb7 cleanup: move system defines before structs 2015-10-13 15:22:58 +02:00
Zdenek Kabelac
0a633750f1 cleanup: avoid using private 
Switch private to user.
 2015-10-13 15:22:58 +02:00
Zdenek Kabelac
e261af52eb dmeventd: handle snapshot overflow 
When snapshot reports overflow, handle it in the same way as Invalid.
Until better ideas are implemented.
 2015-10-13 15:15:44 +02:00
Zdenek Kabelac
0e27210308 dmeventd: add more debug messages 2015-10-13 15:15:43 +02:00
Zdenek Kabelac
c90363b585 dmeventd: use log_ macros in plugins 
Convert from syslog to standard log_() macros in plugins.
 2015-10-13 15:09:03 +02:00
Zdenek Kabelac
915f0faac1 dmeventd: syslog -> log_xxxxx 
Convert logging of dmeventd to libdm logging macros.
 2015-10-13 14:43:30 +02:00
Zdenek Kabelac
2b9843c20b dmeventd: reorder mempool allocation 
Since lvm2_init() effectively detects memory leaks
allocate mempool after this initialization
(so it's not reported as leak).
 2015-09-03 23:34:36 +02:00
Zdenek Kabelac
bff3a1651d debug: use epoch for dmeventd logging 
When LVM_LOG_FILE_EPOCH is set, route lvm command debug message
to lvm.conf log file instead of syslog.
 2015-04-20 12:12:22 +02:00
Petr Rockai
eac4e1e939 dmeventd: Call lvscan --cache also for mirrors (in addition to RAID). 2015-01-14 18:05:44 +01:00
Petr Rockai
5dc6671bb5 dmeventd: Call lvscan --cache in the RAID plugin. 2014-07-22 22:48:21 +02:00
Zdenek Kabelac
6b701c3a48 cleanup: dmeventd abstract lvm2cmd interface 
Keep  lvm2cmd  interface hidden inside dmeventd_lvm
and use regular 1/0 return codes, this we may
avoid using lvm2cmd.h in other lvm2 plugins.
 2014-04-18 16:38:51 +02:00
Zdenek Kabelac
451a168bf8 cleanup: drop inclusion of devmap - merge 2014-04-18 16:38:50 +02:00
Zdenek Kabelac
589983a257 cleanup: include stdarg.h where needed. 
Avoid dependency on implicit inclusion of stdarg.h with
libdevmapper.h.
 2014-04-18 16:38:50 +02:00
Zdenek Kabelac
07274f3dd4 makefiles: drop linking of deamon libs to plugins 
Daemon lib is linked into lvm2cmd library.
 2014-04-18 16:38:49 +02:00
Zdenek Kabelac
0b6d6bfb77 thin: dmeventd plugins support more minors 
Kernel supports upto 1M (20bit) minors.
TODO: convert to hash to reduce memory requirements
 2014-04-18 16:38:47 +02:00
Alasdair G Kergon
527db4645f gcc: replace #ifdef linux with __linux__ 2013-11-13 13:56:29 +00:00
Jonathan Brassow
7de533ad12 mirror: Handle failures in tmp mirror used when up-converting. 
Failures in the temporary mirror used when up-converting cause dmeventd
to issue 'lvconvert --repair' on the sub-LV, <lv_name>_mimagetmp_?.  The
'lvconvert' command refuses to deal with this sub-LV outright - it
expects to be given the name of the top-level LV.  So, just like we do
with mirrored logs, we strip-off the portion of the name that is not
the top-level LV and issue the command on the top-level LV instead.
 2013-11-08 09:52:00 -06:00
Alasdair G Kergon
7c6526aae2 lvresize: separate validation from action 
Start separating the validation from the action in the basic lvresize
code moved to the library.
Remove incorrect use of command line error codes from lvresize library
functions.  Move errors.h to tools directory to reinforce this,
exporting public versions of the error codes in lvm2cmd.h for dmeventd
plugins to use.
 2013-07-06 03:28:21 +01:00
Zdenek Kabelac
55f42944bd dmeventd: revert back percent to int 
int is perfectly ok here.
 2013-05-30 16:46:58 +02:00
Zdenek Kabelac
e992cb253c dmeventd: use dm_get_status_snapshot() 
Switch to use libdm dm_get_status_snapshot() function for
reading status info.
This fixes bug, where the code was using 32bit integers,
while the snapshot target is able to return 64bit sizes.
However this also means, someone is using >1TB snapshot
cow devices, which is actually very bad idea anyway, since the
perfomance and memory usage in this case is very bad.
 2013-05-27 10:33:06 +02:00
Zdenek Kabelac
810bc4f8c1 dmeventd: use dm_mountinfo_read 
Reuse mountinfo reading code from libdm.
 2013-05-20 16:47:33 +02:00