diff options
| author | Venky Shankar <vshankar@redhat.com> | 2013-07-31 19:40:28 +0530 |
|---|---|---|
| committer | Anand Avati <avati@redhat.com> | 2013-09-04 19:48:49 -0700 |
| commit | f0b92a45e5c757ec25257e389c877b9b0de8ed07 (patch) | |
| tree | ed147c1252c9270db14664626af5a1954e803dd2 /geo-replication/syncdaemon | |
| parent | 1a642df1e963bf13d44de5b28a72ed2eb4dbca88 (diff) | |
gsyncd / geo-rep: periodically set slave xtime on slave
setting the slave xtime on the slave (after each changelog/xsync)
crawl helps in two things:
* effective recover of master (failover/failback)
* cascading setup - instances when the session from intermediate
master session is stopped, data is put on
the master -> slave sesssion and then the
cascading session is started again.
Change-Id: Ifae10a6ac09dc0d17707c3b5a3090bcf1efec8b6
BUG: 990900
Signed-off-by: Venky Shankar <vshankar@redhat.com>
Reviewed-on: http://review.gluster.org/5451
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Avra Sengupta <asengupt@redhat.com>
Tested-by: Avra Sengupta <asengupt@redhat.com>
Reviewed-by: Anand Avati <avati@redhat.com>
Diffstat (limited to 'geo-replication/syncdaemon')
| -rw-r--r-- | geo-replication/syncdaemon/master.py | 1 | ||||
| -rw-r--r-- | geo-replication/syncdaemon/resource.py | 12 |
2 files changed, 13 insertions, 0 deletions
diff --git a/geo-replication/syncdaemon/master.py b/geo-replication/syncdaemon/master.py index 58df14954bb..12eadb1073a 100644 --- a/geo-replication/syncdaemon/master.py +++ b/geo-replication/syncdaemon/master.py @@ -147,6 +147,7 @@ class NormalMixin(object): def set_slave_xtime(self, path, mark): self.slave.server.set_xtime(path, self.uuid, mark) + self.slave.server.set_xtime_remote(path, self.uuid, mark) class PartialMixin(NormalMixin): """a variant tuned towards operation with a master diff --git a/geo-replication/syncdaemon/resource.py b/geo-replication/syncdaemon/resource.py index 297cdabcb79..1010247aed1 100644 --- a/geo-replication/syncdaemon/resource.py +++ b/geo-replication/syncdaemon/resource.py @@ -432,6 +432,18 @@ class Server(object): Xattr.lsetxattr(path, '.'.join([cls.GX_NSPACE, uuid, 'xtime']), struct.pack('!II', *mark)) @classmethod + @_pathguard + def set_xtime_remote(cls, path, uuid, mark): + """ + set @mark as xtime for @uuid on @path + the difference b/w this and set_xtime() being + set_xtime() being overloaded to set the xtime + on the brick (this method sets xtime on the + remote slave) + """ + Xattr.lsetxattr(path, '.'.join([cls.GX_NSPACE, uuid, 'xtime']), struct.pack('!II', *mark)) + + @classmethod def set_xtime_vec(cls, path, mark_dct): """vectored (or dictered) version of set_xtime |