From cc9ca7d2b2f5c91d80265c28ca724cb233c2bd77 Mon Sep 17 00:00:00 2001 From: Pranith Kumar K Date: Wed, 22 May 2013 15:18:19 +0530 Subject: cluster/afr: Perform delayed changelog wakeups for anon fd Problem: Nfs xlator never does open on a file for performing writes, afr does not perform changelog wakeup for this fd so operations which do metadata operations as soon as the data operations are completed perceive a delay of 'post-op-delay-secs'. Fix: Perform changelog wakeup on anon-fd if the fd with same pid is not present in inode-list. Note: This approach is a short-term fix. A proper fix needs a new domain for taking metadata locks so that data/metadata locks don't compete with each other. Change-Id: I253afb289eadf30c7951e56fb2c4840d7132f5e4 BUG: 966018 Signed-off-by: Pranith Kumar K Reviewed-on: http://review.gluster.org/5066 Tested-by: Gluster Build System Reviewed-by: Vijay Bellur --- tests/bugs/bug-966018.t | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 tests/bugs/bug-966018.t (limited to 'tests/bugs') diff --git a/tests/bugs/bug-966018.t b/tests/bugs/bug-966018.t new file mode 100644 index 000000000..f29690a1a --- /dev/null +++ b/tests/bugs/bug-966018.t @@ -0,0 +1,33 @@ +#!/bin/bash + +. $(dirname $0)/../include.rc +. $(dirname $0)/../volume.rc + +#This tests if eager-lock blocks metadata operations on nfs/fuse mounts. +#If it is not woken up, INODELK from the next command waits +#for post-op-delay secs. + +cleanup; +TEST glusterd +TEST pidof glusterd + +TEST $CLI volume create $V0 replica 2 $H0:$B0/r2_0 $H0:$B0/r2_1 +TEST $CLI volume set $V0 cluster.eager-lock on +TEST $CLI volume set $V0 cluster.post-op-delay-secs 3 + +TEST $CLI volume start $V0 +TEST $CLI volume profile $V0 start +sleep 5 +TEST mount -t nfs -o vers=3,nolock $H0:/$V0 $N0; +TEST glusterfs --entry-timeout=0 --attribute-timeout=0 -s $H0 --volfile-id=$V0 $M0 +echo 1 > $N0/1 && chmod +x $N0/1 +echo 1 > $M0/1 && chmod +x $M0/1 + +#Check that INODELK MAX latency is not in the order of seconds +#Test if the MAX INODELK fop latency is of the order of seconds. +inodelk_max_latency=$($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 ] +TEST umount $N0 + +cleanup; -- cgit