diff options
| author | Jeff Darcy <jdarcy@redhat.com> | 2014-05-07 19:31:30 +0000 |
|---|---|---|
| committer | Vijay Bellur <vbellur@redhat.com> | 2015-05-10 06:17:22 -0700 |
| commit | 4eaaf5188fe24a4707dc2cf2934525083cf8e64f (patch) | |
| tree | 119e440d7ba0bbd85a929294915ef54085b74ffb /tests/bugs/glusterd | |
| parent | 4b7914384e2613e5ec7c618071cb89187ed6f870 (diff) | |
dht: make lookup-unhashed=auto do something actually useful
The key concept here is to determine whether a directory is "clean" by
comparing its last-known-good topology to the current one for the
volume. These are stored as "commit hashes" on the directory and the
volume root respectively. The volume's commit hash changes whenever a
brick is added or removed, and a fix-layout is done. A directory's
commit hash changes only when a full rebalance (not just fix-layout)
is done on it. If all bricks are present and have a directory
commit hash that matches the volume commit hash, then we can assume
that every file is in its "proper" place. Therefore, if we look for
a file in that proper place and don't find it, we can assume it's not
on any other subvolume and *safely* skip the global (broadcast to all)
lookup.
Change-Id: Id6ce4593ba1f7daffa74cfab591cb45960629ae3
BUG: 1219637
Signed-off-by: Jeff Darcy <jdarcy@redhat.com>
Signed-off-by: Shyam <srangana@redhat.com>
Reviewed-on: http://review.gluster.org/7702
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Tested-by: NetBSD Build System
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
Diffstat (limited to 'tests/bugs/glusterd')
| -rwxr-xr-x | tests/bugs/glusterd/bug-1070734.t | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/tests/bugs/glusterd/bug-1070734.t b/tests/bugs/glusterd/bug-1070734.t index b5a53c24cab..5db60e0cfe6 100755 --- a/tests/bugs/glusterd/bug-1070734.t +++ b/tests/bugs/glusterd/bug-1070734.t @@ -65,8 +65,11 @@ TEST [ -f ${OTHERBRICK}/DIR/file ] #Check the DIR on HASHED should have got zeroed layout and the \ #OTHERBRICK should have got full layout -EXPECT "0x00000001000000000000000000000000" dht_get_layout $HASHED/DIR ; -EXPECT "0x000000010000000000000000ffffffff" dht_get_layout $OTHERBRICK/DIR; +shorter_layout () { + dht_get_layout $1 | cut -c 19- +} +EXPECT "0000000000000000" shorter_layout $HASHED/DIR ; +EXPECT "00000000ffffffff" shorter_layout $OTHERBRICK/DIR; ## Before killing daemon to avoid deadlocks EXPECT_WITHIN $UMOUNT_TIMEOUT "Y" umount_nfs $N0 |