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Commit Graph

11618 Commits

Author SHA1 Message Date
Peter Rajnoha
8b965bd3d5 pvremove: make sure even invalid info is removed from lvmcache on pvremove
The lvmcache info might be resued, most notably in lvm shell.
We need to be sure that even lvmcache_info marked as invalid
is removed from the lvmcache so it does not confuse any subsequent
code/commands executed later on.

Problematic example with the lvm shell:

lvm> pvs
  PV         VG   Fmt  Attr PSize   PFree
  /dev/sda        lvm2 ---  128.00m 128.00m

Before this patch (/dev/sda still displayed in a way):
======================================================

lvm> pvremove /dev/sda
  Labels on physical volume "/dev/sda" successfully wiped

(without lvmetad)
lvm> pvs
  No physical volume label read from /dev/sda

(with lvmetad)
lvm> pvs
  PV         VG   Fmt  Attr PSize   PFree
  /dev/sda        lvm2 ---  128.00m 128.00m

With this patch applied:
========================

lvm> pvremove /dev/sda
  Labels on physical volume "/dev/sda" successfully wiped

(without lvmetad)
lvm> pvs

(with lvmetad)
lvm> pvs
2015-10-23 15:48:06 +02:00
Zdenek Kabelac
1a7bea0f0f cleanup: drop debug 2015-10-23 10:54:13 +02:00
Zdenek Kabelac
b5b2a54834 cleanup: fix gcc compile with older pthread
Older pthread library was missing 'trick'
in pthread_cleanup_pop() which lead to
compilation error:

error: label at end of compound statement

Use explicit ';' to fix it.
2015-10-23 10:54:13 +02:00
Zdenek Kabelac
21748a8630 cleanup: gcc warning for old-style 2015-10-23 10:54:13 +02:00
Zdenek Kabelac
e5b686d693 tools: update for lvm2_disable_dmeventd_monitoring
Make lvm2_disable_dmeventd_monitoring() more explicit.

As memlock_inc_daemon() is also used by clvmd, which
does changes dmeventd and suspend ignore state at
some stages - make updates of these 2 variable
tied to the call of  lvm2_disable_dmeventd_monitoring().

Once this call is made dmeventd monitoring
and suspended devices are ignored.

TODO: all lvm-global settings should really be moved
to command context.
2015-10-23 10:54:13 +02:00
Zdenek Kabelac
87a39d8bac dmeventd: ensure filter is empty
On some error path we could have left filter set to some value.
Not a big issue - but lets make reporting correct as soon
as we can.
2015-10-23 10:54:13 +02:00
Zdenek Kabelac
cff1c728d8 dmeventd: debug error paths 2015-10-23 10:54:13 +02:00
Zdenek Kabelac
2786cd27da tests: enable raid test on 4.3
With kernel -rc6 it's passing our raid tests again - so enable
it in tests.

Note: related only to Fedora rawhide kernels...
2015-10-22 22:46:10 +02:00
Zdenek Kabelac
1a2d0a0c72 cleanup: indents 2015-10-22 22:46:10 +02:00
Zdenek Kabelac
b1319e0402 cleanup: drop uneeded header file 2015-10-22 22:46:10 +02:00
Zdenek Kabelac
8be60e6a65 cleanup: easier to read code
Avoid using #ifdef code and use 'cmd' instead of 'die'.
2015-10-22 22:46:10 +02:00
Zdenek Kabelac
39cffa4e9b cleanup: declare vars before code 2015-10-22 22:46:10 +02:00
Zdenek Kabelac
2af696c32f dmeventd: exit on idle
Implementing exit when 'dmeventd' is idle.
Default idle timeout set to 1 hour - after this time period
dmeventd will cleanly exit.

On systems with 'systemd' - service is automatically started with
next contact on dmeventd communication socket/fifo.

On other systems - new dmeventd starts again when lvm2 command detects
its missing and monitoring is needed.
2015-10-22 22:43:03 +02:00
Zdenek Kabelac
4284ba65eb dmeventd: debug signals 2015-10-22 22:41:12 +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
12aa56d298 dmeventd: handle signal from plugin
Add support to unmonitor device when monitor recognizes there is
nothing to monitor anymore.

TODO: possibly API change with return value could be also used.
2015-10-22 22:40:07 +02:00
Zdenek Kabelac
9156c5d088 dmeventd: rework locking code
Redesign threading code:

- plugin registration runs within its new created thread for
  improved parallel usage.

- wait task is created just once and used during whole plugin lifetime.

- event thread is based over  'events' filter being set - when
  filter is 0, such thread is 'unused'.

- event loop is  simplified.

- timeout thread is never signaling 'processing' thread.

- pending of events filter cnange is properly reported and
  running event thread is signalled when possible.

- helgrind is not reporting problems.
2015-10-22 22:39:24 +02:00
Zdenek Kabelac
466a1c72b7 cleanup: use enums 2015-10-22 22:36:00 +02:00
Zdenek Kabelac
81e9ab3156 dmeventd: code mode _get_device_status
Move _get_device_status() in code.
Use dm_task_no_flush() function when reading status.
(e.g. none blocking for thins pool)
2015-10-22 22:35:25 +02:00
Zdenek Kabelac
15dbd4b56a dmeventd: minimize locking time for get_imeout
Don't hold lock when creating message (allocating memory).
Thread cannot dissapear as it's only the same thread which
may clean it.
2015-10-22 22:34:30 +02:00
Zdenek Kabelac
e2ea2a8147 dmeventd: drop unneded test
Function is never called without device.uuid.
2015-10-22 22:34:29 +02:00
Zdenek Kabelac
941c6354db dmeventd: wake up timer when setting new timeout 2015-10-22 22:34:29 +02:00
Zdenek Kabelac
02eb000f51 dmeventd: use dm_hold_control_dev
Need here to keep  control device opened while there is 'any' dso
plugin loaded - otherwise there would a race closing controlfd
inside lvm2 plugin while some other monitoring thread would
tried to execute another WAITEVENT task.
2015-10-22 22:34:27 +02:00
Zdenek Kabelac
efc76ca33d dmeventd: move dso handling into single code section
Move all DSO related function in front, so they could be easily
referenced from rest of code.

Add proper error paths with logging and error reporting.

Drop mutex locking when releasing DSO - since DSO is always
allocated and released in main 'event' processing thread.
2015-10-22 22:33:19 +02:00
Zdenek Kabelac
590091a4fa dmeventd: using warning level
When dmevend notices problems, but continues to operate normally
change log level to warning.
2015-10-22 22:33:19 +02:00
Zdenek Kabelac
9488cbdd0b dmeventd: no registering of 0 event mask
Whenever user tries to register 0 mask report this as EINVAL.
2015-10-22 22:33:19 +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
ab6d16a8a5 dmeventd: check for malloc return 2015-10-22 22:28:37 +02:00
Zdenek Kabelac
09a62cca0c libdm: add dm_hold_control_dev
Support hold of control device open.
Useful for daemons so the control device is not frequently reopenned.
2015-10-22 22:27:31 +02:00
Zdenek Kabelac
075f85dcb5 tools: do not change signals for memlocked daemons 2015-10-22 22:26:30 +02:00
Zdenek Kabelac
d2c4ce254b tools: preselect some setting for memlocked daemons
When our daemon is locked into memory - avoid
communication with dmeventd and also skip
suspended devices.
2015-10-22 22:26:30 +02:00
Zdenek Kabelac
7b78d496bf memlock: report memlock daemon counter
Add internal memlock_count_daemon().

Function can be used to recognize it's being executed
from daemon restricted execution inside /lib code.
2015-10-22 22:26:27 +02:00
Zdenek Kabelac
19e272ba53 lib: better reporting of threshold
Simplify code reporting warning about incorrect thresholds.
2015-10-22 22:06:14 +02:00
David Teigland
73e679f33f man: document possible lvmetad -l values
In the man page and the lvmetad help output.
2015-10-21 13:36:57 -05:00
David Teigland
a0d819172f libdaemon: fix typo in last log enable commit 2015-10-21 11:22:22 -05:00
David Teigland
0aee04288e libdaemon: allow all debug levels for stderr
The parsing code for log levels was missing
some levels.  Also ignore an unrecognized
level name rather than failing.
2015-10-21 11:19:18 -05:00
Ondrej Kozina
ef4d69f456 tests: add lvmetad shutdown on idle test 2015-10-20 15:45:28 +02:00
Ondrej Kozina
c15649b3af lvmetad.8.in: update man page with timeout info 2015-10-20 15:45:21 +02:00
Ondrej Kozina
f67a52677b lvmetad: add optional timeout option 2015-10-20 15:45:14 +02:00
Ondrej Kozina
392248186e tests: add test for missing mirror in-sync info 2015-10-20 12:19:02 +02:00
Ondrej Kozina
33465066c5 polldaemon: fix missing mirror in-sync info with lvmpolld
CONVERTING status flag is a tricky one. It's not set when converting
a non-mirror LV type to the mirror type, i.e.: linear -> two leg mirror.
Also the conversion itself is instant and doesn't require to be polled.
When mirror reaches sync state there's no final update on VG metadata
for lvmpolld to be made thereby report_progress in fact doesn't report
percentage of mirror being converted but percentage of mirror
being in sync. Perhaps we should reword the lvconvert output here.

On the other hand CONVERTING is set while we upconvert the mirror
from i.e. two leg mirror to four leg mirror. In such case the operation
is required to be polled so that lvmpolld can cleanup temporary
conversion log when the conversion is over.

Ignore CONVERTING lv_type for the moment and match LVs only by uuids
during 'mirror conversion'/'waiting for a sync to finish'.
2015-10-20 12:18:55 +02:00
Peter Rajnoha
a5c4c4efbd conf: clarify compact output settings 2015-10-20 11:01:09 +02:00
David Teigland
83d475626a pvscan: use process_each_pv
The old code made two loops through the PVs: in the first
loop it found the max PV and VG name lengths, and in the
second loop it printed each PV using the name lengths as
field widths for aligning columns.

The new code uses process_each_pv() which makes one loop
through the PVs.  In the *first* call to pvscan_single(),
the max name lengths are found by looping through the
lvmcache entries which have been populated by the generic
process_each code prior to calling any _single functions.
Subsequent calls to pvscan_single() reuse the max lengths
that were found by the first call.
2015-10-19 16:15:51 -05:00
Peter Rajnoha
1ea7e2634d conf: regenerate 2015-10-19 10:01:14 +02:00
Peter Rajnoha
23d9b17a7b cleanup: typo in comment: compact_output_fields should be compact-output_cols 2015-10-19 09:59:05 +02:00