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authorVenky Shankar <vshankar@redhat.com>2013-08-13 11:09:31 +0530
committerAnand Avati <avati@redhat.com>2013-09-04 20:49:12 -0700
commit2f305eaed9805ff32c95680c5ac83e001d100cdc (patch)
tree1625971cf041b66491de40851549c697d854ab92 /xlators
parenta6a74c926be767decbcf55dc7d95228c6a62df12 (diff)
gsyncd / geo-rep: "disjoint" cascading geo-replication sessions
Slave's xtime is now stored on the master itself (and that too only on the root), which implies it cannot be propogated to the cascaded slave. Thus the intermediate master now makes use of it's own volume information to propogate volume-mark and xtime. On starting Geo-Replication "geo-replication.ignore-pid-check" marker option is enabled, which is an override for the client-pid check in marker. This options triggers marker update only for geo-replication auxillary mount (client-pid == -1). Since gsyncd not does setxattr() directly on the bricks, this option won't trigger a chain of spurious metadata updates that would need to be processed by gsyncd. Change-Id: If50c5ef275dfb6b4ff4fd35be2565587e2fdf3e1 BUG: 996371 Original Author: Venky Shankar <vshankar@redhat.com> Signed-off-by: Venky Shankar <vshankar@redhat.com> Reviewed-on: http://review.gluster.org/5592 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 'xlators')
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-geo-rep.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/xlators/mgmt/glusterd/src/glusterd-geo-rep.c b/xlators/mgmt/glusterd/src/glusterd-geo-rep.c
index 745bc28..0559998 100644
--- a/xlators/mgmt/glusterd/src/glusterd-geo-rep.c
+++ b/xlators/mgmt/glusterd/src/glusterd-geo-rep.c
@@ -2832,6 +2832,15 @@ glusterd_set_gsync_confs (glusterd_volinfo_t *volinfo)
if (ret)
goto out;
+ /**
+ * enable ignore-pid-check blindly as it could be needed for
+ * cascading setups.
+ */
+ ret = glusterd_set_gsync_knob (volinfo, VKEY_MARKER_XTIME_FORCE,
+ &volfile_changed);
+ if (ret)
+ goto out;
+
ret = glusterd_set_gsync_knob (volinfo,
VKEY_CHANGELOG, &volfile_changed);
if (ret)