Zdenek Kabelac
ade2b9345f
Cleanup for lvmetad passing uninit structure
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Shown by clang analyzer.
2011-10-30 21:58:59 +00:00
Zdenek Kabelac
13dd31381c
Use Makefile for daemmons/common library.
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Next iteration for better fit of lvmetad compilation.
Move build of libdaemon.a into common subdir Makefile.
libdaemon.a is device-mapper target.
Build and install lvmetad as lvm2 target.
2011-09-24 20:57:49 +00:00
Zdenek Kabelac
11dd5cf2aa
Few more updates to lvmetad build deps
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It seem lvmetad deps must be expressed after the include.
Also adding lvmetad deps to device-mapper target in daemons dir.
2011-09-19 00:29:11 +00:00
Zdenek Kabelac
de154812a9
Build fixes for lvmetad
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Should now be giving better build order and install lvmetad.
2011-09-17 14:50:22 +00:00
Zdenek Kabelac
1b8724d866
Fix for gcc compilation warnings
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and put _XOPEN_SOURCE so pthread_mutexattr is properly defined.
2011-09-17 13:33:51 +00:00
Zdenek Kabelac
49cd515cd2
Compile fix
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Reflecting change in dm_config_value float r -> float f.
2011-09-02 11:04:12 +00:00
Petr Rockai
e68a6fbf20
Fix warnings and constness handling in lvmetad-core (adjusting the
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dm_config_find_node to give non-const node pointer, since that better reflects
the contract of that function).
2011-08-31 12:39:58 +00:00
Petr Rockai
d008fc86a0
Get rid of the old lvmetad Makefile.
2011-08-31 11:44:27 +00:00
Petr Rockai
615534d305
A compromise integration of LVMetaD into the build: I have kept all the
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daemon/common code in a single libdaemon.a, which is completely private. This
is currently linked into the lvmetad binary, and will be linked into LVM (the
client part, since static linking only picks up only symbols that are actually
used). I have also added --enable/disable-lvmetad to ./configure; although the
current default is off, I expect this to be flipped to on shortly. There's no
LVM-side support yet, but when there is, even when built, it'll still need to
be enabled by an lvm.conf option.
2011-08-31 11:31:57 +00:00
Petr Rockai
04e647aa84
Adapt LVMetaD to use the new dm_config interfaces.
2011-08-30 15:44:01 +00:00
Petr Rockai
1d9c083fcc
lvmetad: Edit the MISSING_PV flags only after making a "reply" copy of the
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metadata, which is then serialised and discarded. This fixes a couple of
outstanding TODO items about handling the MISSING flags correctly.
2011-07-25 17:59:50 +00:00
Petr Rockai
059ee25951
lvmetad: Check integrity of multiple metadata copies, i.e. ensure that seqno
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equality implies metadata equality. Signal error in response to any update
requests that try to overwrite metadata without providing a higher seqno.
2011-07-25 15:51:51 +00:00
Petr Rockai
9474992482
lvmetad: A couple of TODOs, and fix a few trivial memory leaks.
2011-07-25 15:33:04 +00:00
Petr Rockai
c2ca1a707a
lvmetad: Obliterate vg_status by returning the same information from
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update_pv_status, saving a dozen lines of code and execution time of one
walkthrough of the PV list.
2011-07-20 21:33:41 +00:00
Petr Rockai
bc0a902434
lvmetad: Fix a possible infinite loop in vg_status.
2011-07-20 21:27:28 +00:00
Petr Rockai
fba6c62b84
lvmetad: Robustify update_pv_status and remove an useless lookup.
2011-07-20 21:26:18 +00:00
Petr Rockai
0cfb99d385
First stab at making lvmetad-core threadsafe. The current design should allow
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very reasonable amount of parallel access, although the hash tables may become
a point of contention under heavy loads. Nevertheless, there should be orders
of magnitude less contention on the hash table locks than we currently have on
block device scanning.
2011-07-20 21:23:43 +00:00
Petr Rockai
dcbf5a3b5d
lvmetad: Avoid stale PV -> VG mappings on metadata update.
2011-07-20 18:45:32 +00:00
Petr Rockai
cd7bca83e1
Optimise PV -> VG lookups by using a UUID (hash) map.
2011-07-20 18:34:57 +00:00
Petr Rockai
652e0757c9
Free up allocated memory before exiting, in lvmetad.
2011-07-20 18:24:49 +00:00
Petr Rockai
42e23dbf6c
Can't have a global memory pool in lvmetad (that would constitute an ongoing
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memory leak) => remove it (it's been unused anyway).
2011-07-20 16:49:21 +00:00
Petr Rockai
50ff3c076e
Make lvmetad also report VGID in reply when adding a PV without MDAs (this
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obviously only works for VGs that already had at least some MDA discovered).
2011-07-20 16:46:40 +00:00
Petr Rockai
4eb53158e5
Add code to lvmetad's testclient that scans an actual physical device,
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effectively emulating a future "pvscan --lvmetad" command.
2011-07-20 15:15:41 +00:00
Petr Rockai
c33d33bab7
Make lvmetad report the VG ID and status (complete, partial) in reply to pv_add
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requests.
2011-07-20 15:14:17 +00:00
Petr Rockai
2ef620ec7f
Towards MISSING (PV) flag management in lvmetad.
2011-07-19 19:15:22 +00:00
Petr Rockai
3c238baf03
Work out some more details in metadata update in lvmetad.
2011-07-19 16:48:13 +00:00
Petr Rockai
9796bd4db6
More work on cache maintenance code in lvmetad: keep track of PV status.
2011-07-19 14:13:59 +00:00
Petr Rockai
252853560c
Start filling in the core LVMetaD functionality and the corresponding
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testclient bits.
2011-07-18 14:48:30 +00:00
Alasdair Kergon
730cfc74b8
move doc to doc dir
2011-07-08 18:55:28 +00:00
Petr Rockai
94bb67ab37
Add int/str lookup routines specific to the reply (in client) and request (in
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server) for nicer-looking code (thin wrapping around find_config_{int,str}).
2011-06-27 14:03:58 +00:00
Petr Rockai
aaca7f111f
Also parse the config_tree on the client end (daemon-client.c).
2011-06-27 13:58:11 +00:00
Petr Rockai
55e300716f
Parse the incoming config tree in daemon-server.c, providing the
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daemon-specific handler with a struct config_tree pointer to look things up in.
2011-06-27 13:46:45 +00:00
Petr Rockai
9925977b07
LVMetaD build hack: link to lvm-internal &c. and add a simple test script.
2011-06-27 13:44:33 +00:00
Petr Rockai
4fcbeed6ef
Implement daemon_send_simple and use it in the testclient.
2011-06-27 13:15:49 +00:00
Petr Rockai
ea32ca07e7
Call daemon_close before exit in the testclient.
2011-06-27 12:27:34 +00:00
Petr Rockai
acf3616b3a
Add a skeleton for lvmetad, a test client, and a temporary Makefile to build
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them. These are currently mostly for testing the daemon-common code. LVMetaD
functionality is expected to trickle in soon though.
2011-06-14 02:36:38 +00:00
Milan Broz
7c1a2417f5
Use /var/run/lvm for lvmetad socket.
2011-06-02 08:58:05 +00:00
Petr Rockai
ba7d33be9c
Mention code layout in lvmetad DESIGN.
2011-05-23 14:46:48 +00:00
Petr Rockai
04507b0ace
First go at the lvmetad client-side interface.
2011-05-13 08:17:26 +00:00
Petr Rockai
f03e3ac15b
Initial design document for LVMetaD, building on the draft from June of last
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year, incorporating the outcomes of today's and yesterday's discussions.
2011-05-12 17:49:46 +00:00
