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Commit Graph

32 Commits

Author SHA1 Message Date
Peter Rajnoha
3208396ce5 coverity: fix issues reported by coverity 2014-06-24 14:58:53 +02:00
Zdenek Kabelac
bf19c6be2c cleanup: clvmd move destroy_lvhash into main
Keep destruction code path consistent and simple and
destroy lvhash in the place it's been created.
Also issue debug message from a single place.
2014-03-21 22:29:25 +01:00
Zdenek Kabelac
90d106ef19 Restart CLVMD with same cluster manager
Add named cluster_ops to easily learn the name of the active cluster manager,
so we are able to restart singlenode manager in testing.

Add simple test for clvmd -S  (restart) and -R (refresh)
(though it needs some extensions).
2011-09-25 19:37:00 +00:00
Milan Broz
679830cf58 In some versions (RHEL6) dlm_create_lockspace() always
return lockspace reference (even if lockspace already exists)
and thus increases DLM lockspace count. It means that after
clvmd restart the lockspace is still in use.

(The only way to clean environment to enable clean cluster
shutdown is call "dlm_tool leave clvmd" several times.)

Because only one clvmd can run in time, we can use simpler logic,
try to open lockspace with dlm_open_lockspace() and only if it fails
try to create new one. This way the lockspace reference doesn not
increase.

Very easily reproducible with  "clvmd -S" command.

Patch also fixes return code when clvmd_restart fails and fixes
double free if debug option was specified during restart.

Fixes https://bugzilla.redhat.com/show_bug.cgi?id=612862
2011-01-19 23:09:31 +00:00
Alasdair Kergon
b4ee00356b Various cleanups following recent commits. 2010-06-21 15:56:57 +00:00
Zdenek Kabelac
cee2f123a4 Use "" instead of <> for configure.h and libdevmapper.h
Move configure.h as the first header for clvmd source files.
2010-06-15 11:00:44 +00:00
Milan Broz
c4ff133840 Tidy lv_hash[_lock] use inside clvmd.
- Rename unlock_all to destroy_lvhash,
this function is called in cluster shutdown
unlocks everything and clean up allocated info space.

 - Tidy lv_hash_lock use
.
Except adding free(lvi) in lv_has destructror
there is no functional change.
2009-04-21 13:11:28 +00:00
Christine Caulfield
2095de1af2 Allow clvmd to start up if its lockspace already exists. 2009-02-10 11:52:40 +00:00
Alasdair Kergon
7f78616f3d clvmd 2008-11-04 16:41:47 +00:00
Christine Caulfield
b1bf5f1738 Make clvmd-cman use a hash rather than an array for node updown info.
This will allow it to cope with very large nodeids such as those
generated by clusters using cman_tool join -X
2008-05-09 07:20:04 +00:00
Christine Caulfield
611c0689fc Fix another allocation bug with clvmd and large node IDs.` 2008-04-01 15:01:30 +00:00
Christine Caulfield
7750a1ade6 When reallocating the node IDs array, make it bigger rather than smaller! 2008-03-25 10:41:59 +00:00
Patrick Caulfield
e1cd6dbc07 Misc clvmd cleanups from Jim Meyering 2007-05-02 12:22:40 +00:00
Patrick Caulfield
f46af53ea3 Add some more debuglogs to clvmd startup. 2007-05-02 08:23:36 +00:00
Alasdair Kergon
1bf5aae913 Change some #include lines to search only standard system directories. 2007-04-27 17:46:16 +00:00
Patrick Caulfield
0b65565e6b Make clvmd cope with quorum devices in RHEL5
bz#237386
2007-04-23 14:55:28 +00:00
Patrick Caulfield
efa483c599 Add clvmd call to return the cluster name. 2006-10-09 14:11:57 +00:00
Patrick Caulfield
e37a241536 Fix clvmd bug that could cause it to die when a node with a long name crashed. 2006-10-06 10:06:10 +00:00
Patrick Caulfield
b499b916ca Stop clvmd complaining about nodes that have left the cluster 2006-08-24 12:45:05 +00:00
Patrick Caulfield
a31676722b allow new cman to shutdown on request. 2006-03-21 10:31:08 +00:00
Patrick Caulfield
e7f55bb4c0 Get clvmd to use libcman rather than cman ioctl calls. This makes
it forward-compatible with the new userland CMAN in cluster head.

To build it you will need the libcman header & library installed.
2006-03-14 14:18:34 +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
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
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
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
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
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
cf54177475 Make clvmd cope with large gaps in nodeIDs 2004-09-30 14:18:29 +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
Alasdair Kergon
d3c8211fef Add cluster support. 2004-06-24 08:02:38 +00:00