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303 Commits

Author SHA1 Message Date
Alasdair Kergon
17e298ad2a Only do lockfs filesystem sync when suspending snapshots. 
Switchover library building to use LIB_SUFFIX.
 2006-01-31 14:52:30 +00:00
Alasdair Kergon
d031a374f9 Rename _log to dm_log and export. 
Fix misc compile-time warnings.
 2006-01-31 14:50:38 +00:00
Alasdair Kergon
71f2e4306d Tidy some comments/messages. 2006-01-27 20:52:21 +00:00
Alasdair Kergon
f8af23a025 Fix renamed dso. 2006-01-27 20:51:36 +00:00
Alasdair Kergon
4ef55a6cd3 dmeventd thread termination fix 2006-01-27 20:50:01 +00:00
Alasdair Kergon
312f866723 some init_client cleanup 2006-01-27 20:49:13 +00:00
Alasdair Kergon
0ebe1f6dec More dmeventd mirror cleanups. 2006-01-27 20:48:19 +00:00
Alasdair Kergon
2ad92e0e6e Remove avoidable dmeventd mirror forking. 2006-01-27 20:47:20 +00:00
Alasdair Kergon
ac8823cdcf Fix libdevmapper event daemon_running status. 2006-01-27 20:46:06 +00:00
Alasdair Kergon
77565f7ee4 Replace deprecated signal functions. 2006-01-27 20:45:17 +00:00
Alasdair Kergon
d656d90fa8 Use split_dm_name in dmeventd mirror code. 2006-01-27 20:43:52 +00:00
Alasdair Kergon
cd6568db69 fix dmevent registration return codes 2006-01-27 20:01:45 +00:00
Alasdair Kergon
85c818a39e read/write loop fixes 2005-12-19 22:56:47 +00:00
Alasdair Kergon
8825157fbb Change dm_tree_node_add_mirror_target_log parm order 2005-12-19 21:03:17 +00:00
Alasdair Kergon
6a22ad0171 comments 2005-12-13 13:34:31 +00:00
Alasdair Kergon
cf703b0433 Fix dmeventd build. 2005-12-05 11:16:48 +00:00
Alasdair Kergon
c0197a72d3 fix exports 2005-12-02 21:00:33 +00:00
Alasdair Kergon
b8b029b7d3 Add mirror dmeventd library 2005-12-02 19:52:06 +00:00
Alasdair Kergon
ab931b177d dmeventd updates 2005-12-02 15:39:16 +00:00
Patrick Caulfield
3c2a4370a5 Make it compile with debug enabled. 2005-11-10 08:49:29 +00:00
Patrick Caulfield
5ae2693241 Use hash functions in libdevmapper. 2005-11-09 09:24:10 +00:00
Alasdair Kergon
67eb7723d6 Use hash, bitset, malloc, pool from libdevmapper. 2005-10-16 23:03:59 +00:00
Patrick Caulfield
e52f022026 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
a0aedf299a Prepare tools to support clustered mirrors. 2005-08-14 23:18:28 +00:00
Patrick Caulfield
7a8ea2ac93 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
b85f99c140 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
ca4e0c973a 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
8e526ba1bf Don't defer closing of FDs in clvmd as it can cause trouble. 2005-06-13 10:16:21 +00:00
Patrick Caulfield
6c6165c9f5 Be a bit smarter about reading stuff from the sockets 2005-06-10 09:11:01 +00:00
Benjamin Marzinski
853460b20d 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
7bc04fbad3 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
f1060fc88e Exit after last unregister_for_event() 2005-05-20 13:53:26 +00:00
AJ Lewis
88f9534685 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
45952cbdf2 oops. Those are char **'s not char *'s 2005-05-04 19:24:03 +00:00
Benjamin Marzinski
b355dd7b23 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
48a186f172 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
39dc7ec2ab - 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
2fedabd3b9 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
40e896bc5b working dm_get_registered_device(). dmevent.c update to use it. 2005-05-03 16:15:20 +00:00
Heinz Mauelshagen
3e940f80c7 more dm_get_registered_device() code 2005-05-03 13:50:42 +00:00
Benjamin Marzinski
dbf2888d43 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
d412355324 stopped printing a string after we erased the pointer to it. 2005-05-02 18:43:23 +00:00
Benjamin Marzinski
178732217f removed the -lmultilog for now. 2005-05-02 18:42:07 +00:00
Benjamin Marzinski
de17b95c3d get the makefile to clean up the .o's 2005-05-02 17:41:54 +00:00
Heinz Mauelshagen
d14e774525 Introduce exit() in main() and cleanup signal settings for parent/child 2005-05-02 11:02:19 +00:00
Benjamin Marzinski
ca5402a7fa more variable initialization. 2005-04-29 22:12:09 +00:00
Heinz Mauelshagen
da36c286a6 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
d3901bcf2e first changes to get comms back to work after flock changes 2005-04-29 13:41:25 +00:00
Heinz Mauelshagen
94c8d4fdfb minor cleanup 2005-04-29 10:58:34 +00:00
AJ Lewis
ab8bdc18bb o Build dmeventd against multilog 2005-04-28 22:47:52 +00:00
Alasdair Kergon
c9dcd7442a build libdmeventnoop.so for testing 2005-04-28 17:32:27 +00:00
Alasdair Kergon
34c8f13346 test.c->dmevent.c 2005-04-28 14:49:41 +00:00
Alasdair Kergon
7a8ccda95c 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
44a1448542 Prototype for a device-mapper event-handling daemon. 2005-04-27 22:32:00 +00:00
Patrick Caulfield
901f7c5c36 Tidy clvmd's SIGHUP handler so it doesn't do all that work. 2005-04-19 10:36:42 +00:00
Patrick Caulfield
6102a5d2b0 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
8c3fdaaa62 set SO_KEEPALIVE on sockets 2005-04-01 16:03:00 +00:00
Patrick Caulfield
5ac1c69710 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
701c05ce96 Tighten signal handlers. 2005-03-21 14:16:16 +00:00
Patrick Caulfield
b982232cc5 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
6a0dcd7f0e 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
7c89ae44a9 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
84fe06da22 ./configure --enable-debug now enables debugging code in clvmd 2005-02-21 15:58:06 +00:00
Patrick Caulfield
806318c8b3 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
6dba6cd78d 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
502250d08f Fix gulm->errno error number conversion. 2005-02-17 12:56:19 +00:00
Patrick Caulfield
7395f0e680 Make config check a little more tolerant of library names. 2005-02-14 09:07:14 +00:00
Patrick Caulfield
522db1bf01 Fix thread shutdown race which could cause clvmd to hang in pthread_join. 2005-02-08 09:05:58 +00:00
Patrick Caulfield
06f066f90d Revert last clvmd patch. More testing reveals that this just doesn't 
work yet.
 2005-02-07 14:45:38 +00:00
Patrick Caulfield
f37b20677b Make clvmd use the command library rather than popen() to 
preload the lock state.
 2005-02-07 10:04:27 +00:00
Patrick Caulfield
4c80cc313a Make clvmd do a quick sanity check on the clustering bits of lvm.conf 2005-02-02 11:42:29 +00:00
Patrick Caulfield
1c65fee9b4 Get rid of "connection refused" message because Corey doesn't like it. 2005-02-02 09:17:56 +00:00
Patrick Caulfield
150a002c40 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
ce0def3bd8 Remove superflous & 
Gulm clvmd no longer hangs trying to talk to a rebooted node.
 2005-01-25 16:46:29 +00:00
Patrick Caulfield
ee20fa97c2 Make clvmd announce it's startup and cluster connection in syslog. 2005-01-24 15:31:13 +00:00
Patrick Caulfield
92e2a257a6 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
32e175752c 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
fdc49402ec fix clvmd lv_info_by_lvid open_count 2005-01-19 18:10:09 +00:00
Patrick Caulfield
5529aec0d6 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
8b170dc2bf Fix off-by-one error in cluster_locking that could case read hangs. 2005-01-07 14:22:49 +00:00
Patrick Caulfield
b131449422 Some more gulm fixes from "Mr gulm" himself. 2005-01-06 11:48:25 +00:00
Patrick Caulfield
86046445ed 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
baea9bf944 Typo in "for" caused first node in ccs to be ignored. 2005-01-04 15:11:34 +00:00
Patrick Caulfield
0951ee9e63 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
6f4e93dc90 Configure/makefile tidy. 2004-11-26 18:07:17 +00:00
Patrick Caulfield
2affe53727 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
20f3408d96 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
e9d86789db 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
d48f8bf5cc 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
99d97754a6 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
b9d437de2a 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
11403f2019 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
14ae59885a Make clvmd cope with large gaps in nodeIDs 2004-09-30 14:18:29 +00:00
Patrick Caulfield
e3ef54f99b 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
6533aa865a 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
953f4838dd 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
130b892d34 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
d0ca74ad27 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
c65d95bf29 Cluster-extension-only installation. 2004-08-18 18:57:40 +00:00
Patrick Caulfield
3527fcf1d5 Updated file from cman. 2004-08-18 16:04:35 +00:00
Alasdair Kergon
20c0adb961 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
a01e03562f Make sure errors reach syslog(). 2004-06-28 10:26:42 +00:00
Alasdair Kergon
858a2b1b88 Add cluster support. 2004-06-24 08:02:38 +00:00