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Commit Graph

1024 Commits

Author SHA1 Message Date
Ondrej Kozina
b91e1ea95e lvmpolld: introduce client functionality
as of now lvmpolld works as client utility for
querying running instance of lvmpolld server
on metadata, state, etc.

Currently the only request implemented is the '--dump'.
It prints out full lvmpolld state (mimics lvmdump -p command).
2015-05-15 20:33:27 +02:00
Ondrej Kozina
333fdfd4b6 lvmpolld: label known return codes
so that lvmpolld-client can decode and describe these
return codes properly
2015-05-15 20:31:48 +02:00
Zdenek Kabelac
b184d7a2ca makefiles: drop DEBUG mangling
DEBUG is already set through make.tmpl.
2015-05-14 00:19:33 +02:00
Zdenek Kabelac
7bd1559db6 makefiles: testclient is not valid target 2015-05-14 00:19:32 +02:00
Ondrej Kozina
d5cef7413f lvmpolld: dump cleanup 2015-05-12 17:17:07 +02:00
Ondrej Kozina
d758115786 lvmpolld: by default spawn lvpoll cmd with -An 2015-05-11 19:08:13 +02:00
Ondrej Kozina
5cfd7074af lvmpolld: set use counters properly in lvmpolld_store
set active_polling_count to zero in pdst_init fn
2015-05-11 19:08:00 +02:00
Ondrej Kozina
e587b0677b lvmpolld: Add standalone polldaemon.
See doc/lvmpolld_overview.txt
2015-05-09 00:59:18 +01:00
Zdenek Kabelac
636bcb020a clvmd: missed newline in help text
Print \n after listing included lock managers.
2015-05-03 00:41:20 +02:00
Zdenek Kabelac
923902013c lvmetad: drop unused vars
Squash some unused vars introduced in some previous commit.s
2015-04-29 15:09:58 +02:00
Petr Rockai
4946c64092 lvmetad: Avoid duplicate entries in the list of alternate devices. 2015-04-29 13:23:23 +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
a1dd61459c lvmetad: Track alternate devices for PVs.
There are two reasons for this: first, this allows the client side to notice
that some PV has multiple devices associated with it and print appropriate
warnings. Second, if a duplicate device pops up and disappears, after this
change the original connection between the PV and device is not lost.
2015-04-14 20:18:27 +02:00
Zdenek Kabelac
4459413225 clvmd: singlenode signals only when lock changes
There is no benefit in waking-up all the waiters
when there is no actual change in lock state.
This avoid some unnecessarily ping-pong effects like:

 Resource V_LVMTEST15724vg retrying lock in mode:WRITE...
 Resource V_LVMTEST15724vg already locked lockid=40, mode:WRITE
 Resource V_LVMTEST15724vg retrying lock in mode:WRITE...
 Resource V_LVMTEST15724vg already locked lockid=40, mode:WRITE
2015-04-08 23:19:34 +02:00
Petr Rockai
373f855684 clvmd: Fix BZ 1140095 by updating lastfd upon EINTR. 2015-02-18 12:45:43 +01:00
Petr Rockai
eac4e1e939 dmeventd: Call lvscan --cache also for mirrors (in addition to RAID). 2015-01-14 18:05:44 +01:00
Alasdair G Kergon
6521c4b215 libdaemon: Fix some client leaks.
Free (and clear) h.protocol string on daemon_open() error paths
so it's OK for caller to skip calling daemon_close() if returned
h.socket_fd is -1.

Close h.socket_fd in daemon_close() to avoid possible leak.

https://bugzilla.redhat.com/1164234
2014-11-28 21:31:51 +00:00
Zdenek Kabelac
422d1ac8d2 man: clvmd updates
- closer to the recommendation of man-pages (7) if possible
- Add crossrefs
- Sort options and crossrefs
- Fix default timeout (60 secs) of -t
- Documents -I[auto]

Signed-off-by: Stéphane Aulery <saulery@free.fr>
2014-11-19 01:09:52 +01:00
Zdenek Kabelac
01760967b4 locking: rename LCK_CONVERT
All 'MODE' bits are using _MODE suffix so rename to LCK_CONVERT_MODE
(part of rhbz 735445).
No functional change.
2014-11-18 16:50:49 +01:00
Peter Rajnoha
eccc97f15a coverity: remove redundant condition
LVM2.2.02.112/daemons/clvmd/clvmd.c:1131: warning[arrayIndexOutOfBoundsCond]: Array 'row[8]' accessed at index 8, which is out of bounds. Otherwise condition 'j==8' is redundant.

This code:

int i,j = 0;
...
for (i = 0; i < len; ++i) {
	...
	if ((j == 8) || (i + 1 == len)) {
		for (;j < 8; ++j) {
			...
		}
		...
		j = 0;
	}
}

Indeed - j is 0 at the beginning, then iterating till j < 8,
then always zeroed at the end of the outer loop - so "j" never
reaching value of 8 - the j == 8 condition is redundant.
2014-11-12 09:30:02 +01:00
Alasdair G Kergon
9a5910bdf9 pre-release 2014-11-11 14:13:00 +00:00
Zdenek Kabelac
f12e3da639 cleanup: gcc warnings 2014-11-10 22:05:49 +01:00
Alasdair G Kergon
160777bb3e dmeventd: Add basic thread debugging messages.
Only with -DDEBUG.
2014-11-04 18:56:20 +00:00
Alasdair G Kergon
89f635a075 dmeventd: Include shutdown threads in responses.
When responding to DM_EVENT_CMD_GET_REGISTERED_DEVICE no longer
ignore threads that have already been unregistered but which
are still present.

This means the caller can unregister a device and poll dmeventd
to ensure the monitoring thread has gone away before removing
the device.  If a device was registered and unregistered in quick
succession and then removed, WAITEVENT could run in parallel with
the REMOVE.

Threads are moved to the _thread_registry_unused list when they
are unregistered.
2014-11-04 16:58:14 +00:00
Alasdair G Kergon
6b25faa218 dmeventd: Remove redundant checks.
The status of threads in _thread_registry is always DM_THREAD_RUNNING
(zero).

DM_EVENT_REGISTRATION_PENDING is never stored in thread->events.
2014-11-04 16:55:42 +00:00
David Teigland
8dc5f42254 metadata: Use flags to control warnings.
The warnings arg was used to enable logging of warnings
when reading a PV.  This arg is turned into a set of flags
with the WARN_PV_READ flag matching the existing behavior.

A new flag WARN_INCONSISTENT is added that will cause
vg_read_internal() to log the "VG is not consistent"
warning so the various callers do not need to log
this warning themselves.

A new vg_read flag READ_WARN_INCONSISTENT is used from
reporting to enable the WARN_INCONSISTENT flag in
vg_read_internal.

[Committed by agk with cosmetic changes and tweaks.]
2014-10-07 01:15:43 +01:00
Liuhua Wang
829e5a4037 cmirror: fix endian issues on s390
Cmirrord has endian bugs, which cause failure to lvcreate a mirrored lv
on s390.
- data_size is uint32, should not use xlate64 to convert, which will
  cause data_size 0 after xlate.
- request_type and data_size still used by local(v5_data_switch),
  should convert later.  If request_type xlate too early, it will
  cause request_type judge error; if data_size xlate too early, it
  will cause coredump in case DM_ULOG_CLEAR_REGION.
- when receiving package in clog_request_from_network. vp[0] will always
  be little endian.  We could use xlate64(vp[0]) == vp[0] to decide if
  the local node is little endian or not.

Signed-off-by: Lidong Zhong<lzhong@suse.com> & Liuhua Wang <lwang@suse.com>
Signed-off-by: Jonathan Brassow <jbrassow@redhat.com>
2014-09-15 16:08:35 -05:00
Zdenek Kabelac
3c8fa2aa01 clvmd: use correctly sized buffers for sscanf
sscanf needs extra 1 char for '\0'
2014-08-29 13:10:20 +02:00
Zdenek Kabelac
6d7f260f92 dmeventd: fix test for select return value
Do not call read when select return -1 && EINTR.
Also check for return valuer from read() and
abort write function when unexpected error happens.
2014-08-19 14:33:06 +02:00
Petr Rockai
5dc6671bb5 dmeventd: Call lvscan --cache in the RAID plugin. 2014-07-22 22:48:21 +02:00
Peter Rajnoha
3208396ce5 coverity: fix issues reported by coverity 2014-06-24 14:58:53 +02:00
Peter Rajnoha
5abdb52fdc report: select: refactor: move str_list to libdm
The list of strings is used quite frequently and we'd like to reuse
this simple structure for report selection support too. Make it part
of libdevmapper for general reuse throughout the code.

This also simplifies the LVM code a bit since we don't need to
include and manage lvm-types.h anymore (the string list was the
only structure defined there).
2014-06-17 16:27:20 +02:00
Zdenek Kabelac
9bccaf7ae4 cleanup: missed conversion to dm_malloc/free usage
Few missed unconverted dm_malloc/free calls.
2014-05-07 14:17:46 +02:00
Zdenek Kabelac
d88fab8d3a cleanup: drop uneeded headers 2014-05-07 14:17:45 +02:00
Jonathan Brassow
8b49d61d83 logging: Add LCK_REVERT_MODE to flags printed by decode_flags()
The decode_flags() function does not yet know about the
LCK_REVERT_MODE flag.
2014-05-05 14:30:09 -05:00
Zdenek Kabelac
cbdf63fdd2 cleanup: indent in devmapper-event
Drop header inclusion - this file is already included.
Shorten code.
2014-04-30 10:26:30 +02:00
Zdenek Kabelac
816cc94ac1 devmapper-event: always initialize timeout
Always pass fully initialized timeval struct to select.
2014-04-30 10:26:29 +02:00
Zdenek Kabelac
7a1777302f cleanup: dmeventd simplify restart message parsing
Since we already check every characted in the message,
skip extra callback to strlen, and do the implicit
message length checking.
2014-04-18 16:53:29 +02:00
Zdenek Kabelac
1f701c7bf6 cleanup: dmeventd drop setting of size
Size is not used when msg->data is NULL.
2014-04-18 16:52:59 +02:00
Zdenek Kabelac
78c6dea48e cleanup: dmeventd improve _handle_request
Let the compiler resolve cmd lookup and leave it to optimize it as it
needs.
2014-04-18 16:52:45 +02:00
Zdenek Kabelac
0927605ec3 cleanup: dmeventd improve _clien_write code
Switch to allocate buffer from heap, since it might be potentially
bigger when extremaly large set of volumes would be monitored.
In case of allocation failure send ENOMEM message.
Also implicitelly ignore msg->size when msg->data is NULL.
2014-04-18 16:52:35 +02:00
Zdenek Kabelac
3febd2c9d4 cleanup: dmeventd set next_time when registering
Don't change next_time, when thread is already registered.
2014-04-18 16:52:11 +02:00
Zdenek Kabelac
dc21bbfabd cleanup: dmeventd improve _get_status
Use directly dm_asprintf() to allocate buffer with message,
and properly detect failing on replacement of snprintf()
which also returns -1 on error.
2014-04-18 16:51:54 +02:00
Zdenek Kabelac
0503af8466 cleanup: dmeventd simplify buffer write loop 2014-04-18 16:50:55 +02:00
Zdenek Kabelac
13d05211d0 cleanup: dmeventd simplify status processing
Since we always know the string length, use simplier memcpy.
2014-04-18 16:38:52 +02:00
Zdenek Kabelac
4fb588c34e cleanup: dmeventd reorder _fill_device_data
Just simplify the function.
2014-04-18 16:38:51 +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
6448428d05 cleanup: add some comment indents...
Just cleanup things
2014-04-18 16:38:51 +02:00
Zdenek Kabelac
91eb8927fd cleanup: skip zeroing of cleared areas
Zalloc mem is already zeroed.
2014-04-18 16:38:51 +02:00
Zdenek Kabelac
20179523e2 cleanup: set _REENTRANT in header
Use same way of setting _REENTRANT as in other
files - set it in the first included header file
(clvmd-common.h)
2014-04-18 16:38:50 +02:00