diff options
| author | Jeff Darcy <jdarcy@redhat.com> | 2014-05-07 19:31:30 +0000 |
|---|---|---|
| committer | Vijay Bellur <vbellur@redhat.com> | 2015-05-09 21:55:09 -0700 |
| commit | 243d61575c093c03b9beb014bf9d097646836e95 (patch) | |
| tree | afaccb59310013c4f7c6bb867231c4d8988a697c /tests/bugs/distribute/bug-921408.t | |
| parent | 58ef6a233f43bc644be55d2b5510b12718a6835e (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: 1220064
Reviewed-on-master: http://review.gluster.org/#/c/7702/
Signed-off-by: Jeff Darcy <jdarcy@redhat.com>
Signed-off-by: Shyam <srangana@redhat.com>
Reviewed-on: http://review.gluster.org/10729
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
Diffstat (limited to 'tests/bugs/distribute/bug-921408.t')
| -rwxr-xr-x | tests/bugs/distribute/bug-921408.t | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/tests/bugs/distribute/bug-921408.t b/tests/bugs/distribute/bug-921408.t index b1887f8ae22..559114bb85a 100755 --- a/tests/bugs/distribute/bug-921408.t +++ b/tests/bugs/distribute/bug-921408.t @@ -37,7 +37,7 @@ addbr_rebal_till_layout_change() then break fi - NEW_LAYOUT=`get_layout $B0/${V0}0` + NEW_LAYOUT=`get_layout $B0/${V0}0 | cut -c11-34` if [ $OLD_LAYOUT == $NEW_LAYOUT ] then i=`expr $i + 1`; @@ -64,7 +64,7 @@ TEST touch $M0/test/test fd=`fd_available` TEST fd_open $fd "rw" $M0/test/test -OLD_LAYOUT=`get_layout $B0/${V0}0` +OLD_LAYOUT=`get_layout $B0/${V0}0 | cut -c11-34` addbr_rebal_till_layout_change 1 |