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8475 Commits

Author SHA1 Message Date
Zdenek Kabelac
40a9c443a9 man: use some existing indentifier
Avoid confusing user, since some may get impression there is
such variable (max_archives) in the config file.
Pick rather something existing.
2014-02-11 18:55:54 +01:00
Zdenek Kabelac
c1faa4048a lvm2app: access params after its checked
Since params is checked for NULL, move code that dereferences
params after its check.
2014-02-11 18:50:37 +01:00
Zdenek Kabelac
38e457c478 raid: drop invalid modication of active parameter
lv_active_change will enforce proper activation.
Modification of activation was wrong and lead to misuse of
autoactivation. Fix allows to use proper local exclusive activation,
while the removed code turned this into just exclusive
activation (losing required local property).
2014-02-11 18:48:38 +01:00
Zdenek Kabelac
8a21dcebac raid: use unsigned 64b constant for shift 2014-02-11 18:47:15 +01:00
Peter Rajnoha
1a5062c9a7 cleanup: clarify man pages about lvchange/vgchange -aay, use -aay in lvm2-cluster-activation script 2014-02-11 13:48:04 +01:00
Peter Rajnoha
a092cd33be systemd: rename lvm2-cluster-activation and lvm2-clvmd services to follow existing naming
lvm2_cluster_activation_red_hat.service.in -> lvm2_cluster_activation_systemd_red_hat.service.in
lvm2_clvmd_red_hat.service.in -> lvm2_clvmd_red_hat.service.in

Edit lvm2-cluster-activation reference on cmirror - take new
lvm2-cmirrord.service, it was just cmirrord(.service) before
as the old initscript was used in compatibility mode.

Also, use WantedBy=multi-user.target instead of sysinit.target
in lvm2-cluster-activation.service.
2014-02-11 10:12:39 +01:00
Peter Rajnoha
ef91de2a0c systemd: add systemd unit for cmirrord 2014-02-11 10:06:19 +01:00
Peter Rajnoha
a0d64554e6 autoreconf: latest changes 2014-02-10 19:02:18 +01:00
Ondrej Kozina
fd41dd8f9c Add systemd native service for clvmd and cluster activation
The commit splits original clvmd service in two new native services
for systemd enabled systems while original init scripts remain unaltered.

New systemd native services:

  1) clvmd daemon itself (lvm2_clvmd_red_hat.service.in)
  2) (de)activation of clustered VGs (lvm2_cluster_activation_red_hat.service.in)

There're several reasons to split it. First, there's no support for conditional
stop in systemd and AFAIK they don't plan to support it. In other words:
if the deactivation fails for some reason, systemd doesn't care and will simply
kill all remaining processes in original cgroup (by default). Killing the
remaining procs can be suppressed however it doesn't solve the following problem:

You can't repeat the stop command of a failed service. The repeated stop command
is simply not propagated to the service in a failed state. You would have to start
and then try to stop the service again. Unfortunately, this can't be done while
the daemon is still running (and we need the daemon to stay active until all
clustered VGs are deactivated properly).

In a separated setup we need only to restart the failed activation service and
that's fine.
2014-02-10 17:13:49 +01:00
Peter Rajnoha
ffa623c53d systemd: cleanup for lvmetad systemd unit
No need to fork lvmetad when running under systemd.
Also, the "lvmetad -R" support has been removed in lvm2 v2.02.98
so remove the ExecReload line that called it on "systemctl reload".
2014-02-10 16:20:45 +01:00
Petr Rockai
38457e1be9 libdevmapper-event: Print a deprecation warning for non-default plugins. 2014-02-10 14:52:59 +01:00
Peter Rajnoha
ed166a3b1d wiping: wipe DM_snapshot_cow signature without prompt in newly created LVs
The libblkid can detect DM_snapshot_cow signature and when creating
new LVs with blkid wiping used (allocation/use_blkid_wiping=1 lvm.conf
setting and --wipe y used at the same time - which it is by default).

Do not issue any prompts about this signature when new LV is created
and just wipe it right away without asking questions. Still keep the
log in verbose mode though.
2014-02-10 13:28:13 +01:00
Peter Rajnoha
5635816094 cleanup: missing parentheses in a condition
gcc reports:
  metadata/merge.c:229:58: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
  metadata/merge.c:232:58: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
2014-02-10 09:05:17 +01:00
Peter Rajnoha
290e58b0b6 WHATS_NEW: latest commits 2014-02-06 18:19:24 +01:00
Peter Rajnoha
73f30ed6a4 dmeventd: check pidfile for exit instead of polling via protocol
Since we use unlink + _exit now on dmeventd DIE message, we can
check the pidfile existence to see whether the dmeventd has finished.
2014-02-06 17:53:03 +01:00
Peter Rajnoha
90286fa0e9 dmeventd: use _exit(0) instead of raise(9) on dmeventd DIE message
Just a cleaner way to die.
2014-02-06 17:41:13 +01:00
Peter Rajnoha
fbeb08f320 dmeventd: add DM_EVENT_GET_PARAMETERS request to dmeventd protocol
The DM_EVENT_GET_PARAMETERS requests the parameters under which
the running dmeventd is run and the it sends them to caller.

The parameters sent:
  - the pid of the running dmeventd
  - foreground state
  - exec_method (currently either "direct" or "systemd")

The exact message sent back:
  pid=<pid> daemon=<no/yes> exec_method=<direct/systemd>
2014-02-06 17:41:12 +01:00
Peter Rajnoha
8a8abc5ed9 dmeventd: fix dmeventd -R to work properly with systemd
Trying to restart dmeventd as a reload action is causing problems
under systemd environment. The systemd loses track of new dmeventd
this way. See also https://bugzilla.redhat.com/show_bug.cgi?id=1060134
for more info.

We need to call dmeventd -R directly instead of "systemctl reload dm-event.service"
that was used before (the reload is aimed at configuration reload anyway,
not stateful restart of the daemon - we did this before just because
there's no ExecRestart in systemd and there's only ExecStart and
ExecStop with which we'd lose the state).

Also, use ExecStart="dmeventd -f" to run dmeventd in foreground
(and let's rely on systemd to daemonize it) and change the
service type from "forking" to "simple".
2014-02-06 17:15:19 +01:00
Jonathan Brassow
36f9fadcb4 cache[pool]: Populate existing report fields with cache data
For the report fields that already exist that are relevent to cache
and cache pool LVs (like 'origin', 'metadata_lv', etc), populate
them.
2014-02-05 09:44:37 -06:00
Jonathan Brassow
96626f64fa cache: Code to allow the create/remove of cache LVs
This patch allows users to create cache LVs with 'lvcreate'.  An origin
or a cache pool LV must be created first.  Then, while supplying the
origin or cache pool to the lvcreate command, the cache can be created.

Ex1:
Here the cache pool is created first, followed by the origin which will
be cached.
~> lvcreate --type cache_pool -L 500M -n cachepool vg /dev/small_n_fast
~> lvcreate --type cache -L 1G -n lv vg/cachepool /dev/large_n_slow

Ex2:
Here the origin is created first, followed by the cache pool - allowing
a cache LV to be created covering the origin.
~> lvcreate -L 1G -n lv vg /dev/large_n_slow
~> lvcreate --type cache -L 500M -n cachepool vg/lv /dev/small_n_fast

The code determines which type of LV was supplied (cache pool or origin)
by checking its type.  It ensures the right argument was given by ensuring
that the origin is larger than the cache pool.

If the user wants to remove just the cache for an LV.  They specify
the LV's associated cache pool when removing:
~> lvremove vg/cachepool

If the user wishes to remove the origin, but leave the cachepool to be
used for another LV, they specify the cache LV.
~> lvremove vg/lv

In order to remove it all, specify both LVs.

This patch also includes tests to create and remove cache pools and
cache LVs.
2014-02-04 16:50:16 -06:00
Jonathan Brassow
97be8b3482 cache: Code changes to allow creation of cache pools
This patch allows the creation and removal of cache pools.  Users are not
yet able to create cache LVs.  They are only able to define the space used
for the cache and its characteristics (chunk_size and cache mode ATM) by
creating the cache pool.
2014-02-04 11:57:08 -06:00
Jonathan Brassow
013cf27bff cache pool: Add 'update_cache_pool_params'
Similar function to 'update_thin_pool_params', but for cache.  Performs
the adjustements for chunk_size, metdata device size, etc.
2014-02-04 11:50:27 -06:00
Jonathan Brassow
8ddc7f641c misc: disambiguate 'update_pool_params'
s/update_pool_params/update_thin_pool_params/ to disambiguate it from
a future 'update_cache_pool_params'.
2014-02-04 09:58:35 -06:00
Jonathan Brassow
afe2ba657b misc: rename variables [min|max]_chunk to [min|max]_chunk_size
better variable names.
2014-02-04 08:20:10 -06:00
Jonathan Brassow
b94a3ee9f6 cache: Add functions that create/remove cache LVs
A cache LV - from LVM's perpective - is a user accessible device that
links the cachepool LV and the origin LV.  The following functions
were added to facilitate the creation and removal of this top-level
LV:
1) 'lv_cache_create' - takes a cachepool and an origin device and links
   them into a new top-level LV of 'cache' segment type.  No allocation
   is necessary in this function, as the sub-LVs contain all of the
   necessary allocated space.  Only the top-level layer needs to be
   created.

2) 'lv_cache_remove' - this function removes the top-level LV of a
   cache LV - promoting the cachepool and origin sub-LVs to top-level
   devices and leaving them exposed to the user.  That is, the
   cachepool is unlinked and free to be used with another origin to
   form a new cache LV; and the origin is no longer cached.
   (Currently, if the cache needs to be flushed, it is done in this
   function and the function waits for it to complete before proceeding.
   This will be taken out in a future patch in favor of polling.)
2014-02-04 07:59:58 -06:00
Zdenek Kabelac
ef6c5795a0 raid: add temporary activation for raid metadata clear
Use LV_TEMPORARY when activating devices for clearing
raid metadata.
2014-02-04 14:51:05 +01:00
Zdenek Kabelac
ef557b8091 tests: update test
Remove some unneeded traces and outputs.
2014-02-04 14:49:38 +01:00
Jonathan Brassow
3247819531 pool: Make another thin pool fn generic for cache usage also
Make '_recalculate_thin_pool_chunk_size_with_dev_hints' so it can
be used for cache and thin pools.
2014-02-04 07:03:52 -06:00
Jonathan Brassow
131383963f misc: Fix copy+paste error
'cache_pool_metadata_require_separate_pvs' was added in version 2.02.106
not 2.02.89.
2014-01-31 17:09:47 -06:00
Alasdair G Kergon
4aa8a14fc2 compilation: Rename tags variables to tagsl. 2014-01-30 21:09:28 +00:00
Alasdair G Kergon
83358d4c03 tools: Add internal tags command. 2014-01-30 13:09:15 +00:00
Jonathan Brassow
e833d84e67 cache/pool: Make the fns in pool_manip.c work with cache pools
The functions in pool_manip.c are specific to thin pools.  It's
now time to make them more generic and able to handle cache pools
as well.
2014-01-28 12:25:07 -06:00
Jonathan Brassow
70fd2139e1 cache: Allocation code changes necessary to support cache_pool
Cache pools require a data and metadata area (like thin pools).  Unlike
thin pool, if 'cache_pool_metadata_require_separate_pvs' is not set to
'1', the metadata and data area will be allocated from the same device.
It is also done in a manner similar to RAID, where a single chunk of
space is allocated and then split to form the metadata and data device -
ensuring that they are together.
2014-01-28 12:25:02 -06:00
Jonathan Brassow
75b8ea195c cache: New functions for gathering info on cache devices
Building on the new DM function that parses DM cache status, we
introduce the following LVM level functions to aquire information
about cache devices:
- lv_cache_block_info: retrieves information on the cache's block/chunk usage
- lv_cache_policy_info: retrieves information on the cache's policy
2014-01-28 12:24:51 -06:00
Jonathan Brassow
d9bec60a23 cache/misc: Revert commit 94377dfd
I am reverting the commit below - removing the new 'dm_config_get_int'
function and simply calling 'dm_config_get_uint32' while casting the
'int *' pointer parameter.

Commit being reverted:
commit 94377dfd5e
Author: Jonathan Brassow <jbrassow@redhat.com>
Date:   Mon Jan 27 05:26:19 2014 -0600

    Misc: New function for reading lvm config file fields

    Introduce 'dm_config_get_int', which will be used by the upcoming
    cachepool segment type.
2014-01-28 11:26:05 -06:00
Zdenek Kabelac
42fa0e6dd1 tests: validate acceptable external origin size 2014-01-29 14:59:09 +01:00
Zdenek Kabelac
155405b0e1 thin: validate external origin size
Avoid use of external origin with size unaligned/incompatible with
thin pool chunk size, since the last chunk is not correctly provisioned
when it is overwritten.
2014-01-29 14:58:13 +01:00
Zdenek Kabelac
8074d8056a thin:drop stack trace when pool is above threshold
Since this path is expected, do not log_debug stacktrace.
2014-01-29 14:26:06 +01:00
Zdenek Kabelac
5a1e1d0d39 cleanup: fix cut&paste and move initialization
Use C initializers and fix cut&paste core_arg error.

(in release fix)
2014-01-29 09:00:16 +01:00
Zdenek Kabelac
e9d9852c55 thin: more validation of thin name
Avoid starting conversion of the LV to the thin pool and thin volume
at the same time.  Since this is mostly a user mistake, do not try
to just convert to one of those type, since we cannot assume if the
user wanted LV to become thin volume or thin pool.

Before the fix tool reported pretty strange internal error:
Internal error: Referenced LV lvol1_tdata not listed in VG mvg.

Fixed output:
lvconvert --thinpool lvol0 -T mvg/lvol0
Can't use same LV mvg/lvol0 for thin pool and thin volume.
2014-01-28 13:21:39 +01:00
Zdenek Kabelac
bc5f40ee1c tests: check for mkfs
Test mkfs.ext3 presence for test.
Test also on singlenode cluster.
Speed up a bit slowed down device.
2014-01-28 10:40:08 +01:00
Zdenek Kabelac
c0bd436dcb thin: disable extension of reduced thin with etx.origin
Since we are currently incapable of providing zeroes for
reextended thin volume area, let's disable extension of
such already reduce thin volumes.

(in-release change)
2014-01-28 10:40:08 +01:00
Zdenek Kabelac
7786443530 devices: support zvol
Support partitions on ZFS zvol.
Requested via https://bugzilla.redhat.com/show_bug.cgi?id=913597

Author: hakimian@aha.com
2014-01-28 10:33:29 +01:00
Jonathan Brassow
df181cc51e cache: Add DM interface for retrieving a cache's status
This patch defines a structure for holding all of the device-mapper
cache target's status information.  The associated function provides
an easy way for higher levels (LVM) to consume the information.

This patch finishes the device-mapper interface for the cache and
cachepool segment types (i.e. the cache target).
2014-01-27 05:30:42 -06:00
Jonathan Brassow
1ff7e214e0 cache: New 'cache' segment type
This patch adds the cache segment type - the second of two necessary
to create cache logical volumes.  This segment type references the
cachepool (the small fast device) and the origin (the large slow device);
linking them to create the cache device.  The cache device is the
hierarchical device-mapper device that the user ulitmately makes use
of.

The cache segment sources the information necessary to construct the
device-mapper cache target from the origin and cachepool segments to
which it links.
2014-01-27 05:29:35 -06:00
Jonathan Brassow
90bbed3255 cache: New 'cachepool' segment type
This patch adds the new cachepool segment type - the first of two
necessary to eventually create 'cache' logical volumes.  In addition
to the new segment type, updates to makefiles, configure files, the
lv_segment struct, and some necessary libdevmapper flags.

The cachepool is the LV and corresponding segment type that will hold
all information pertinent to the cache itself - it's size, cachemode,
cache policy, core arguments (like migration_threshold), etc.
2014-01-27 05:27:16 -06:00
Jonathan Brassow
94377dfd5e Misc: New function for reading lvm config file fields
Introduce 'dm_config_get_int', which will be used by the upcoming
cachepool segment type.
2014-01-27 05:26:19 -06:00
Zdenek Kabelac
6b73d21ba9 locking: avoid dropping locks
When lvm2 command forks, it calls reset_locking(),
which as an unwanted side effect unlinked lock file from filesystem.

Patch changes the behavior to just close locked file descriptor
in children - so the lock is being still properly hold in the parent.
2014-01-27 12:13:29 +01:00
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
Zdenek Kabelac
89d7732617 thin: fix missing ~ in previous commit 2014-01-24 13:13:37 +01:00