From 36b102645ab66d141dcc831e67caa78966d45419 Mon Sep 17 00:00:00 2001 From: Pranith Kumar K Date: Tue, 30 Jul 2013 18:29:15 +0530 Subject: cluster/afr: Disable eager-lock if open-fd-count > 1 Lets say mount1 has eager-lock(full-lock) and after the eager-lock is taken mount2 opened the same file, it won't be able to perform any data operations until mount1 releases eager-lock. To avoid such scenario do not enable eager-lock for transaction if open-fd-count is > 1. Delaying of changelog piggybacking is avoided in this situation. Change-Id: I51b45d6a7c216a78860aff0265a0b8dabc6423a5 BUG: 910217 Signed-off-by: Pranith Kumar K Reviewed-on: http://review.gluster.org/5432 Tested-by: Gluster Build System Reviewed-by: venkatesh somyajulu Reviewed-by: Vijay Bellur --- tests/bugs/bug-921231.t | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 tests/bugs/bug-921231.t (limited to 'tests') diff --git a/tests/bugs/bug-921231.t b/tests/bugs/bug-921231.t new file mode 100644 index 00000000..db9cf3b6 --- /dev/null +++ b/tests/bugs/bug-921231.t @@ -0,0 +1,31 @@ +#!/bin/bash + +. $(dirname $0)/../include.rc +. $(dirname $0)/../volume.rc + +# This test writes to same file with 2 fds and tests that eager-lock is not +# causing extra delay because of post-op-delay-secs +cleanup; + +function write_to_file { + dd of=$M0/1 if=/dev/zero bs=1M count=128 oflag=append 2>&1 >/dev/null +} + +TEST glusterd +TEST pidof glusterd +TEST $CLI volume create $V0 replica 2 $H0:$B0/${V0}0 $H0:$B0/${V0}1 +TEST $CLI volume set $V0 eager-lock on +TEST $CLI volume set $V0 post-op-delay-secs 3 +TEST $CLI volume set $V0 client-log-level DEBUG +TEST $CLI volume start $V0 +TEST $CLI volume profile $V0 start +TEST $CLI volume set $V0 ensure-durability off +TEST glusterfs --volfile-id=/$V0 --volfile-server=$H0 $M0 --attribute-timeout=0 --entry-timeout=0 +write_to_file & +write_to_file & +wait +#Test if the MAX [F]INODELK fop latency is of the order of seconds. +inodelk_max_latency=$($CLI volume profile $V0 info | grep INODELK | awk 'BEGIN {max = 0} {if ($6 > max) max=$6;} END {print max}' | cut -d. -f 1 | egrep "[0-9]{7,}") +TEST [ -z $inodelk_max_latency ] + +cleanup; -- cgit