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1851 Commits

Author SHA1 Message Date
Alasdair Kergon
db204c51a6 Tidy some comments/messages. 2006-01-27 20:52:21 +00:00
Alasdair Kergon
1ff0ef6945 Fix renamed dso. 2006-01-27 20:51:36 +00:00
Alasdair Kergon
6463fa2993 dmeventd thread termination fix 2006-01-27 20:50:01 +00:00
Alasdair Kergon
fc2b1f2ce9 some init_client cleanup 2006-01-27 20:49:13 +00:00
Alasdair Kergon
f0b4c52d4a More dmeventd mirror cleanups. 2006-01-27 20:48:19 +00:00
Alasdair Kergon
17840c21c3 Remove avoidable dmeventd mirror forking. 2006-01-27 20:47:20 +00:00
Alasdair Kergon
7000cdb5ea Fix libdevmapper event daemon_running status. 2006-01-27 20:46:06 +00:00
Alasdair Kergon
3bee15b0fb Replace deprecated signal functions. 2006-01-27 20:45:17 +00:00
Alasdair Kergon
cb49c5a03f Use split_dm_name in dmeventd mirror code. 2006-01-27 20:43:52 +00:00
Alasdair Kergon
132a76156e fix dmevent registration return codes 2006-01-27 20:01:45 +00:00
Alasdair Kergon
74892f5c3d read/write loop fixes 2005-12-19 22:56:47 +00:00
Alasdair Kergon
ce7ed2c0a9 Change dm_tree_node_add_mirror_target_log parm order 2005-12-19 21:03:17 +00:00
Alasdair Kergon
e66f1197d6 comments 2005-12-13 13:34:31 +00:00
Alasdair Kergon
3c588200fe Fix dmeventd build. 2005-12-05 11:16:48 +00:00
Alasdair Kergon
16da207de2 fix exports 2005-12-02 21:00:33 +00:00
Alasdair Kergon
06f62ad1e4 Add mirror dmeventd library 2005-12-02 19:52:06 +00:00
Alasdair Kergon
dd3ec4e87a dmeventd updates 2005-12-02 15:39:16 +00:00
Patrick Caulfield
47b59176e0 Make it compile with debug enabled. 2005-11-10 08:49:29 +00:00
Patrick Caulfield
c650c19805 Use hash functions in libdevmapper. 2005-11-09 09:24:10 +00:00
Alasdair Kergon
2262b32057 Use hash, bitset, malloc, pool from libdevmapper. 2005-10-16 23:03:59 +00:00
Patrick Caulfield
fe6c78629d clvmd no longer takes out locks for non-clusteed LVs, 
and non-clustered LVs are only activated on the local node.
 2005-08-16 08:25:09 +00:00
Alasdair Kergon
07d318310b Prepare tools to support clustered mirrors. 2005-08-14 23:18:28 +00:00
Patrick Caulfield
4bb7474e8a Don't send a signal to kill threads that are idling nicely as it upsets them. 
This seems to cure bz#159727 on SMP systems.

Alasdair, can you include this patch in the lvm2-cluster package please ?
 2005-08-09 10:39:57 +00:00
Benjamin Marzinski
7bfd1238ce Fixing some makesfiles, so that the correct things link against pthreads. 
Also changed dmevent so that in no longer links against pthreads, and
dynamically loads libdmevent.so.  Everything seems to work just fine like this.
 2005-06-14 19:06:26 +00:00
Patrick Caulfield
470b46cee1 Log an error if clvmd can't resolve a host name got from CCS 
Fix potential spin loop in clvmd
 2005-06-14 10:35:02 +00:00
Patrick Caulfield
5a3f4a794d Don't defer closing of FDs in clvmd as it can cause trouble. 2005-06-13 10:16:21 +00:00
Patrick Caulfield
eeee8cfd31 Be a bit smarter about reading stuff from the sockets 2005-06-10 09:11:01 +00:00
Benjamin Marzinski
5469414bf8 Timeout event implementation: 
The daemon side of this is mostly the same as the patch I sent out.  To select
a timeout period different than the default and to get the timeout period,
I added two library calls, dm_set_event_timeout() and dm_get_event_timeout().
If people are against them, the other option is to tack extra arguments onto
dm_regiser_for_event() and dm_get_registered_device().  I also added a
-t option to dmevent, so people can try out timeouts.
 2005-06-09 18:40:49 +00:00
AJ Lewis
8e6230ddd9 Change the multilog code to toggle between async and sync writes for all 
log types.  This means the threaded_syslog type is no longer valid.  A new
fxn multilog_async is available to toggle between the two modes.  If an
app is compiled without pthreads and tries to use async logging, no logging
will occur while async is enabled.

dmeventd has been modified to use the new code

I'm not positive I like the way the async_logger code calls the log fxn,
but it works for now.  Suggestions for other ways to do it would be helpful
 2005-05-25 21:08:36 +00:00
Heinz Mauelshagen
9e0419057c Exit after last unregister_for_event() 2005-05-20 13:53:26 +00:00
AJ Lewis
bca1803fea o Changed the multilog API a bit (I warned you) 
- multilog_add_type, multilog_del_type, multilog_custom, and
     multilog_init_verbose all have different arguments.
   - Primary change is that caller only passes in config info, and the
     lib keeps track of state internally.  No more exporting of
     'struct log_data'.
   - Custom callers now only get the custom data pointer passed into their
     log fxn (that is set with multilog_custom)
   - Added basic README that describes libmultilog
 2005-05-09 18:44:35 +00:00
Benjamin Marzinski
f60f128448 oops. Those are char **'s not char *'s 2005-05-04 19:24:03 +00:00
Benjamin Marzinski
cbac299f5b fixed dmevent so that it doesn't do a double free when you run 
# dmevent -l

Also, changed the behaviour of dm_get_registered_device(), so that it doesn't
change the pointer you passed in without freeing the memory on a non-next call,
and doesn't free your pointer without setting it to NULL on a failed next call.
 2005-05-04 18:53:28 +00:00
Heinz Mauelshagen
40773cd620 o libmultilog needs introducing of list locking in order to stand 
multilog_add_type()/multilog_del_type cycles correctly.
o fixed segfault in multilog_add_type()
o fixed test-multilog.c
o cleaned up libmultilog (list macros, indentation, braces, comments)
 2005-05-04 11:52:07 +00:00
Jonathan Earl Brassow
1862e88ffa - make noop use multilog 
- add event_nr to thread_status struct and set appropriately so that the
  thread actually waits for an event
- essentially make error_detected return true.  Let the DSOs determine
  how to interpret the status info
 2005-05-04 01:57:31 +00:00
AJ Lewis
cd4355d8f4 o stick multilog into the dm-event lib and dmeventd code again 
o more tweaks to libmultilog calls - the api isn't set in stone yet, so
   don't get too comfortable.
 o not sure the dmeventd in device-mapper/dmeventd works - i've been using
   the one in lib/event/
 o currently both daemons are set to log only to syslog
 2005-05-03 21:29:13 +00:00
Heinz Mauelshagen
1d76599a94 working dm_get_registered_device(). dmevent.c update to use it. 2005-05-03 16:15:20 +00:00
Heinz Mauelshagen
088e6e29da more dm_get_registered_device() code 2005-05-03 13:50:42 +00:00
Benjamin Marzinski
4396ee160a dmeventd was looking for dsos with libdmeventd<name>.so 
The Makefile turned noop.c into    libdmeventnoop.so
The Makefile now turns noop.c into libdmeventdnoop.so
 2005-05-02 19:34:25 +00:00
Benjamin Marzinski
64f4fd6e2b stopped printing a string after we erased the pointer to it. 2005-05-02 18:43:23 +00:00
Benjamin Marzinski
33c1c56800 removed the -lmultilog for now. 2005-05-02 18:42:07 +00:00
Benjamin Marzinski
1e8221b3ad get the makefile to clean up the .o's 2005-05-02 17:41:54 +00:00
Heinz Mauelshagen
c4763cf8c9 Introduce exit() in main() and cleanup signal settings for parent/child 2005-05-02 11:02:19 +00:00
Benjamin Marzinski
d4d51bd6d3 more variable initialization. 2005-04-29 22:12:09 +00:00
Heinz Mauelshagen
d54da54d67 o checking in instrumented code for AJ to follow up on comms and logging 
o changed

  int dm_get_next_registered_device(char **dso_name, char **device,
                                    enum event_type *events);

  to

  int dm_get_registered_device(char **dso_name, char **device,
                               enum event_type *events, int next)

  so that the daemon is able to retrive the next one of the list without
  running into locking issues.

o changed dmevent.c to use dm_get_registered_device()

o couldn't test this yet because of the comms issues
  (daemon exits in do_process_request())
 2005-04-29 14:56:35 +00:00
Heinz Mauelshagen
96c5c1f9ea first changes to get comms back to work after flock changes 2005-04-29 13:41:25 +00:00
Heinz Mauelshagen
b0e25eef22 minor cleanup 2005-04-29 10:58:34 +00:00
AJ Lewis
871e7fcd1a o Build dmeventd against multilog 2005-04-28 22:47:52 +00:00
Alasdair Kergon
db6c5ba5b2 build libdmeventnoop.so for testing 2005-04-28 17:32:27 +00:00
Alasdair Kergon
42712811e3 test.c->dmevent.c 2005-04-28 14:49:41 +00:00
Alasdair Kergon
e4fe47bc19 o adds dm_get_next_registered_device() (not functional yet) 
to retrieve which devices got registered with the daemon;
  needs locking changes as well
 2005-04-28 14:02:30 +00:00
Alasdair Kergon
b0c36cbd57 Prototype for a device-mapper event-handling daemon. 2005-04-27 22:32:00 +00:00
Patrick Caulfield
30bda7761e Tidy clvmd's SIGHUP handler so it doesn't do all that work. 2005-04-19 10:36:42 +00:00
Patrick Caulfield
2b7e4013cd Make clvmd work around some "limitations" in gulm's node state notifications. 
Also make clvmd debuglog timestamps a little more helpful.
 2005-04-13 13:50:07 +00:00
Patrick Caulfield
a478de3db6 set SO_KEEPALIVE on sockets 2005-04-01 16:03:00 +00:00
Patrick Caulfield
11270d07bf Don't allow user operations to start until the lvm thread is fully up. 
Hopefully finally nails bz#146056
 2005-04-01 13:01:01 +00:00
Alasdair Kergon
779b7713cf Tighten signal handlers. 2005-03-21 14:16:16 +00:00
Patrick Caulfield
a6c23d8b8b Don't take out the lvm_thread_lock at startup - it only protects the jobs list. 
DEBUGLOG() message now print threadid rather than PID which is more useful.
 2005-03-09 14:08:11 +00:00
Patrick Caulfield
3329bbfdf3 make clvmd FDs close-on-exec, to avoid warnings when running lvm via popen. 
clvmd-gulm unlocks VG & orphan locks at startup in case they are stale.
clvmd-gulm now unlocks VG & orphan locks if client dies.
 2005-03-07 17:03:44 +00:00
Patrick Caulfield
eb3037ddbd Fix clvmd-gulm node up/down code so it actually works. 
clvmd-gulm now releases locks when shut down.
 2005-02-22 16:26:21 +00:00
Patrick Caulfield
a00bfcc8b2 ./configure --enable-debug now enables debugging code in clvmd 2005-02-21 15:58:06 +00:00
Patrick Caulfield
ce1aa2c3ff Always manipulate both locks in sync_lock() otherwise they get left 
hanging around and cause trouble.
 2005-02-21 14:36:09 +00:00
Patrick Caulfield
c9808c329d Cope with more than one message arriving at the TCP socket, also 
fix some instances where the length in the message was wrong (cman
code didn't notice this because it is packet-based comms anyway)
 2005-02-18 15:31:32 +00:00
Patrick Caulfield
65c591696a Fix gulm->errno error number conversion. 2005-02-17 12:56:19 +00:00
Patrick Caulfield
a3dfa1c7d5 Make config check a little more tolerant of library names. 2005-02-14 09:07:14 +00:00
Patrick Caulfield
ceda2b1426 Fix thread shutdown race which could cause clvmd to hang in pthread_join. 2005-02-08 09:05:58 +00:00
Patrick Caulfield
5937664052 Revert last clvmd patch. More testing reveals that this just doesn't 
work yet.
 2005-02-07 14:45:38 +00:00
Patrick Caulfield
2cf7b80d8f Make clvmd use the command library rather than popen() to 
preload the lock state.
 2005-02-07 10:04:27 +00:00
Patrick Caulfield
d9656543ee Make clvmd do a quick sanity check on the clustering bits of lvm.conf 2005-02-02 11:42:29 +00:00
Patrick Caulfield
28b4320c7f Get rid of "connection refused" message because Corey doesn't like it. 2005-02-02 09:17:56 +00:00
Patrick Caulfield
9549da2743 Don't print CMAN error if initial probe fails - we could be running with GULM. 2005-01-26 09:30:52 +00:00
Patrick Caulfield
4e224cf079 Remove superflous & 
Gulm clvmd no longer hangs trying to talk to a rebooted node.
 2005-01-25 16:46:29 +00:00
Patrick Caulfield
c9f9a8b2b3 Make clvmd announce it's startup and cluster connection in syslog. 2005-01-24 15:31:13 +00:00
Patrick Caulfield
dbe0c8075e Get rid of libclvm as it's out-of-date and not used at all. 2005-01-21 11:56:30 +00:00
Patrick Caulfield
6f4d25ec7f Fix clvmd startup bug introduced in cman/gulm amalgamation. bz#145729 
Improve reporting of node-specific locking errors so you'll get
somthing a little more helpfiul than "host is down" - it will now tell
you /which/ host it thinks is down.
 2005-01-21 11:35:24 +00:00
Alasdair Kergon
5d0b9f475a fix clvmd lv_info_by_lvid open_count 2005-01-19 18:10:09 +00:00
Patrick Caulfield
5c7fc7c4f7 You can now build clvmd with cman & gulm support in the same binary. 
./configure --with-clvmd
wil do this by default. Or you can choose which you want with
./configure --with-clvmd=gulm    or
./configure --with-clvmd=cman

When clvmd with both included is run, it will automatically detect the cluster
manager in use.
 2005-01-13 13:24:02 +00:00
Patrick Caulfield
b9fb9b206e Fix off-by-one error in cluster_locking that could case read hangs. 2005-01-07 14:22:49 +00:00
Patrick Caulfield
235592e9e8 Some more gulm fixes from "Mr gulm" himself. 2005-01-06 11:48:25 +00:00
Patrick Caulfield
0d19475588 Improve clvmd failure message if it's already running. 
Allow user to kill clvmd during initialisation.
 2005-01-05 14:41:54 +00:00
Patrick Caulfield
67443faddb Typo in "for" caused first node in ccs to be ignored. 2005-01-04 15:11:34 +00:00
Patrick Caulfield
a057a834b7 Use new CCS key names for nodes in the GULM version of clvmd. 
based on a patch from Mike Tilstra
 2005-01-04 11:48:10 +00:00
Alasdair Kergon
a266258f4c Configure/makefile tidy. 2004-11-26 18:07:17 +00:00
Patrick Caulfield
bb7b7c6d5f Tidy the socket callbacks so that all the work is done outside the 
main loop.
 2004-11-16 10:55:01 +00:00
Patrick Caulfield
badd6fb7ba Report detailed errors in cluster initialisation to syslog, and point the user 
at syslog if clvmd fails to intialise.
 2004-11-11 14:51:23 +00:00
Patrick Caulfield
b1098701ec Can now build a gulm version of clvmd instead of a cman one. use 
./configure --with-clvmd=gulm

The default is still cman, and you can't have both - sorry.
 2004-11-03 10:45:07 +00:00
Patrick Caulfield
3d4159b6bf Make clvmd -V display the lvm version number too rather than just 
the protocol version (which is not that useful and doesn't change very often).
 2004-10-06 12:36:47 +00:00
Patrick Caulfield
bfd4b01407 Revert the fork back to where it was as it seems to confuse pthreads. 
Instead, the parent now waits for the daemon to signal that it has
completed successfully (or not) so it can return status to the user.
 2004-10-06 10:12:34 +00:00
Patrick Caulfield
8d81a737a4 Change some perror() calls to log_error() so they'll appear in 
syslog when we're a daemon.
 2004-10-06 10:02:25 +00:00
Patrick Caulfield
e5011ba8bf Check the UUID length when readingthe output of the "lvs" command at startup. 
This way we should not get quite so confused by any debugging output
that may come our way.
 2004-10-04 09:23:52 +00:00
Patrick Caulfield
cf54177475 Make clvmd cope with large gaps in nodeIDs 2004-09-30 14:18:29 +00:00
Patrick Caulfield
896318f475 Fork a little later in the startup sequence so that we can return 
an error code if the cluster infrastructure isn't there.
 2004-09-30 14:16:28 +00:00
Patrick Caulfield
8ef0b7b9ef Keep client locks (VG locks usually) in their own hash table so 
we can actually have more then one of them per client.
 2004-09-24 09:39:57 +00:00
Patrick Caulfield
985f52fe34 Make the thread handling a little less cavalier. In particular, calling 
pthread_exit in a signal handler was a /really/ bad idea.
 2004-09-23 12:51:56 +00:00
Patrick Caulfield
421bb2e9bf Don't use hold_lock for VG locks as that doesn't stop processes contending 
on the same node, only across the cluster.
 2004-09-23 12:29:35 +00:00
Patrick Caulfield
56942c3f2a Put some locking round the LV hash table as it could be accessed by 
different threads concurrently.
 2004-09-22 12:10:34 +00:00
Alasdair Kergon
cab8ea7c62 Cluster-extension-only installation. 2004-08-18 18:57:40 +00:00
Patrick Caulfield
ceec24d27f Updated file from cman. 2004-08-18 16:04:35 +00:00
Alasdair Kergon
80992638e1 Fix LD_FLAGS->LDFLAGS. LD_DEPS->LDDEPS. 
Update configure script: add --disable-selinux & some missing messages.
 2004-06-28 14:01:24 +00:00
Patrick Caulfield
3e5cc2beb9 Make sure errors reach syslog(). 2004-06-28 10:26:42 +00:00
Alasdair Kergon
d3c8211fef Add cluster support. 2004-06-24 08:02:38 +00:00