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Commit Graph

76 Commits

Author SHA1 Message Date
Zdenek Kabelac
f18ee04fab lvmetad: respect LVM_LVMETAD_PIDFILE settings in lvm
Test LVM_LVMETAD_PIDFILE for pid for lvm command.
Fix WHATS_NEW envvar name usage
Fix init order in prepare_lvmetad to respect set vars
and avoid clash with system settings.
Update test to really test the 'is running' message.
2014-01-24 15:59:38 +01:00
Alasdair G Kergon
0a13815e68 pvscan: use format feature flags in lvmetad code
Introduce FMT_OBSOLETE to identify pool metadata and use it and FMT_MDAS
instead of hard-coded format names.
Explain device accesses on pvscan --cache man page.
2014-01-08 02:13:13 +00:00
Alasdair G Kergon
21c3b41ea8 lvmetad: free fid after vg lookup failure 2014-01-08 01:51:23 +00:00
Petr Rockai
18afca5ddd pvscan --cache: Use FMT_LVM1_NAME instead of hardcoded "lvm1". 2013-12-15 16:44:47 +01:00
Petr Rockai
bd3edb2566 pvscan --cache: Error out on pool-format VGs for now. 2013-12-15 16:44:47 +01:00
Peter Rajnoha
8d5cff5b9b lv/vgchange: do not try to connect to lvmetad if socket absent and --sysinit -aay used
If using lv/vgchange --sysinit -aay and lvmetad is enabled, we'd like to
avoid the direct activation and rely on autoactivation instead so
it fits system initialization scripts.

But if we're calling lv/vgchange --sysinit -aay too early when even
lvmetad service is not started yet, we just need to do the direct
activation instead without printing any error messages (while
trying to connect to lvmetad and not finding its socket).

This patch adds two helper functions - "lvmetad_socket_present" and
"lvmetad_used" which can be used to check for this condition properly
and avoid these lvmetad connections when the socket is not present
(and hence lvmetad is not yet running).
2013-11-26 14:51:23 +01:00
Petr Rockai
03d3e1d9c1 lvmetad: Set up device pointers in synthetic lvmcache_infos. 2013-11-18 17:53:45 +01:00
Petr Rockai
0decd7553a metadata: Fix metadata repair paths when lvmetad is used. 2013-10-09 14:44:01 +02:00
Zdenek Kabelac
6f335ffa35 sigint: improve logic on for sigint reaction
Fix and improve handling on sigint.

Always check for signal presence *before* calling of command,
so it will not call the command when break was hit.

If the command has been finished succesfully there is
no problem to mark the command ok and not report interrupt at all.

Fix cuple related stack; reports and assignments.
2013-07-03 14:46:42 +02:00
Zdenek Kabelac
54e0622650 lvmetad: add some message for error path
Do not leave replay uninitialized for internal error.
2013-06-16 00:07:32 +02:00
Petr Rockai
c1e851e208 Move export_vg_to_config_tree alongside export_vg_to_buffer. 2013-06-10 15:55:55 +02:00
Peter Rajnoha
732859d21f refactor: rename embedding area -> bootloader area 2013-05-28 12:37:22 +02:00
Zdenek Kabelac
f787b575b5 lvmetad: fix error paths
Also add missing goto out on error.
Error path missed return NULL leading to double free of enc_value.
2013-04-21 23:04:53 +02:00
Petr Rockai
382fc878d7 lvmetad: Check for reappeared PVs. 2013-04-03 12:48:28 +02:00
Petr Rockai
00ed6759c8 lvmetad: Mark PVs visible to lvmetad but not to us as MISSING. 2013-04-03 11:40:29 +02:00
Peter Rajnoha
9d5a3c16dd lvmetad: fix to properly process embedding area 2013-02-27 10:36:49 +01:00
Peter Rajnoha
9dbe25709e pv_header_extension: add support for reading PV header extension (flags & Embedding Area)
New tools with PV header extension support will read the extension
if it exists and it's not an error if it does not exist (so old PVs
will still work seamlessly with new tools).

Old tools without PV header extension support will just ignore any
extension.

As for the Embedding Area location information (its start and size),
there are actually two places where this is stored:
  - PV header extension
  - VG metadata

The VG metadata contains a copy of what's written in the PV header
extension about the Embedding Area location (NULL value is not copied):

    physical_volumes {
        pv0 {
          id = "AkSSRf-difg-fCCZ-NjAN-qP49-1zzg-S0Fd4T"
          device = "/dev/sda"     # Hint only

          status = ["ALLOCATABLE"]
          flags = []
          dev_size = 262144       # 128 Megabytes
          pe_start = 67584
          pe_count = 23   # 92 Megabytes
          ea_start = 2048
          ea_size = 65536 # 32 Megabytes
        }
    }

The new metadata fields are "ea_start" and "ea_size".
This is mostly useful when restoring the PV by using existing
metadata backups (e.g. pvcreate --restorefile ...).

New tools does not require these two fields to exist in VG metadata,
they're not compulsory. Therefore, reading old VG metadata which doesn't
contain any Embedding Area information will not end up with any kind
of error but only a debug message that the ea_start and ea_size values
were not found.

Old tools just ignore these extra fields in VG metadata.
2013-02-26 11:27:23 +01:00
Zdenek Kabelac
e566faaae6 cleanup: old style gcc 2013-02-05 16:54:12 +01:00
Petr Rockai
1e4a9534f4 lvmetad: Call _lvmetad_handle_reply in lvmetad_vg_lookup. 2013-01-16 11:19:33 +01:00
Alasdair G Kergon
06abb2dd4c logging: classify log_debug messages
Place most log_debug() messages into a class.
2013-01-07 22:30:29 +00:00
Alasdair G Kergon
48e1ae7f6a lvmetad: add basic client-side debug logging
First attempt at showing precisely what use any command is making of
lvmetad in the -vvvv trace information.
2013-01-05 00:35:50 +00:00
Alasdair G Kergon
41e7f45258 lvmetad: rename device vars and move _token_update
Move _token_update() to avoid the need for _lvmetad_send prototype.

Use 'dev' consistently for a struct device * variable.
Use 'devno' for a dev_t.
2013-01-04 23:45:22 +00:00
Alasdair G Kergon
6d760b2c63 lvmetad: improve client logging when connecting
Rename lvmetad_warning() to lvmetad_connect_or_warn().

Log all connection attempts on the client side, whether successful or not.

Reduce some nesting and remove a redundant assertion.
2013-01-04 23:22:30 +00:00
Zdenek Kabelac
e012d0635d lvmetad: check id_read_format error status
Detect error from id_read_format() function.
2012-12-15 17:23:27 +01:00
Zdenek Kabelac
8ab4334505 cleanup: ignore return values
These dm_snprintfs should not fail, since enough space is reserved.
So return intentionaly ignored.
2012-12-15 14:57:40 +01:00
Petr Rockai
f14f2d4378 lvmetad: Fix autoactivation for MDA-less PVs.
Calling pvscan --cache with -aay on a PV without an MDA would spuriously fail
with an internal error, because of an incorrect assumption that a parsed VG
structure was always available. This is not true and the autoactivation handler
needs to call vg_read to obtain metadata in cases where the PV had no MDAs to
parse. Therefore, we pass vgid into the handler instead of the (possibly NULL)
VG coming from the PV's MDA.
2012-12-12 13:19:04 +01:00
Marian Csontos
ff5c1c576c lvmetad: use dm_config_destroy to free pvmeta
Release pvmeta handler with proper dm_config_destroy() function.
TODO: Fix primary fault for this internal error.

Signed-off-by: mcsontos@redhat.com
2012-12-11 11:55:12 +01:00
Petr Rockai
983f0b46f2 lvmetad: Init lazily, to avoid socket access on config overrides. 2012-10-30 09:15:47 +01:00
Petr Rockai
08ba1b4472 lvmetad: Only print scanning messages when scanning 1 device. 2012-10-15 12:45:50 +02:00
Zdenek Kabelac
2393b468a4 lvmetad: fix previous commit
Ooops patch conversion for gcc cleanup missed this line.
2012-10-15 00:44:31 +02:00
Zdenek Kabelac
6595cae6e9 cleanup: resolve dereferencing type-punned pointer
fix gcc warning:
dereferencing type-punned pointer will break strict-aliasing rules
Replace call by value and pass just const pointer to pvid.
2012-10-14 23:14:00 +02:00
Zdenek Kabelac
4379365cae lvmetad: fix memory leaks in error paths
Destroy interator in error path.
Releasy any possible allocated buffer from buffer_append_f
and buffer_append_vf  in error path.
2012-10-13 19:19:50 +02:00
Zdenek Kabelac
5df6ec24bf cleanup: used old C standard 2012-10-13 19:18:33 +02:00
Zdenek Kabelac
feea5003cc cleanup: remove unneeded headers
Header do not provide any needed symbols.
2012-10-13 19:13:25 +02:00
Zdenek Kabelac
ee7143cd02 lvmetead: release token
Release allocated memory when destroing toolcontext
2012-10-12 17:01:22 +02:00
Petr Rockai
d6d207006a lvmetad: Fix the fix for 813766 (lvmetad connection warning). 2012-10-12 11:22:47 +02:00
Petr Rockai
28776b9526 lvmetad: Make --sysinit suppress connection failure warnings. 2012-10-12 10:58:04 +02:00
Zdenek Kabelac
9ee071705b cleanup: fix compiler warnings
remove unused vars
move var declarations into the front of functions.
fix some sign warnings
2012-10-12 10:25:07 +02:00
Petr Rockai
deea86c7f4 pvscan --cache: Also read metadata from LVM1 PVs (BZ 863401). 2012-10-10 21:55:24 +02:00
Petr Rockai
71d718a4a4 lvmetad: Warn if lvmetad is running but disabled. 2012-10-10 13:54:29 +02:00
Petr Rockai
582a344cd6 lvmetad: In pvscan --cache, update the token directly. 2012-10-08 14:38:22 +02:00
Petr Rockai
1ff2245c23 lvmetad: Give inconsistent metadata warnings in pvscan --cache. 2012-09-26 17:26:23 +02:00
Petr Rockai
c731bb1ee1 lvmetad: Fix #845269: SEGV on corrupt lvmetad response. 2012-09-26 17:26:23 +02:00
Petr Rockai
d2d6663428 lvmetad: Clear metadata/PV cache before a token-triggered rescan. 2012-09-26 17:26:23 +02:00
Petr Rockai
ca0c8673b2 lib/cache/lvmetad: s/pvscan_lvmetad/lvmetad_pvscan/ in the API 2012-09-26 17:26:23 +02:00
Petr Rockai
c9f56d639b lvmetad: Use "%" PRId64 in place of "%d" for extra clarity. 2012-09-26 17:26:16 +02:00
Petr Rockai
c7b17836ea Implement devices/global_filter.
The global filter is applied first, and is also applied in pvscan --cache (which
is called from udev rules to keep lvmetad updated). Cf. example.conf.
2012-09-26 14:49:15 +02:00
Petr Rockai
2276379a71 lib/cache/lvmetad: Refactor to use dm_config_tree in requests.
We were using daemon_send_simple until now, but it is no longer adequate, since
we need to manipulate requests in a generic way (adding a validity token to each
request), and the tree-based request interface is much more suitable for this.
2012-09-26 14:49:15 +02:00
Alasdair G Kergon
438e0050df config: add silent mode
Accept -q as the short form of --quiet.
Suppress non-essential standard output if -q is given twice.
Treat log/silent in lvm.conf as equivalent to -qq.
Review all log_print messages and change some to
log_print_unless_silent.

When silent, the following commands still produce output:
dumpconfig, lvdisplay, lvmdiskscan, lvs, pvck, pvdisplay,
pvs, version, vgcfgrestore -l, vgdisplay, vgs.
[Needs checking.]

Non-essential messages are shifted from log level 4 to log level 5
for syslog and lvm2_log_fn purposes.
2012-08-25 20:35:48 +01:00
Zdenek Kabelac
fd417db274 check: add internal errors for unexpected paths
Adding couple INTERNAL_ERROR reports for unwanted parameters:

Ensure the 'top' metadata node cannot be NULL for lvmetad.

Make obvious vginfo2 cannot be NULL.

Report internal error if handler and vg is undefined.

Check for handle in poll_vg().

Ensure seg is not NULL in dev_manager_transient().

Report missing read_ahead for _lv_read_ahead_single().

Check for report handler in dm_report_object().

Check missing VG in _vgreduce_single().
2012-08-23 14:37:52 +02:00