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#!/bin/bash
#
# Bug 892730 - Verify that afr handles EIO errors from the brick properly.
#
# The associated bug describes a problem where EIO errors returned from the
# local filesystem of a brick that is part of a replica volume are exposed to
# the user. This test simulates such failures and verifies that the volume
# operates as expected.
#
########
. $(dirname $0)/../include.rc
cleanup;
TEST mkdir -p $B0/test{1,2}
# The graph is a two brick replica with error-gen enabled on the second brick
# and configured to return EIO lookup errors 100% of the time. This simulates
# a brick with a crashed or shut down local filesystem. Note that the order in
# which errors occur is a factor in reproducing the original bug (error-gen
# must be enabled in the second brick for this test to be effective).
cat > $B0/test.vol <<EOF
volume test-posix-0
type storage/posix
option directory $B0/test1
end-volume
volume test-locks-0
type features/locks
subvolumes test-posix-0
end-volume
volume test-posix-1
type storage/posix
option directory $B0/test2
end-volume
volume test-error-1
type debug/error-gen
option failure 100
option enable lookup
option error-no EIO
subvolumes test-posix-1
end-volume
volume test-locks-1
type features/locks
subvolumes test-error-1
end-volume
volume test-replicate-0
type cluster/replicate
option background-self-heal-count 0
subvolumes test-locks-0 test-locks-1
end-volume
EOF
TEST glusterd
TEST glusterfs --volfile=$B0/test.vol --attribute-timeout=0 --entry-timeout=0 $M0
# We should be able to create and remove a file without interference from the
# "broken" brick.
TEST touch $M0/file
TEST rm $M0/file
TEST umount $M0
rm -f $B0/test.vol
rm -rf $B0/test1 $B0/test2
cleanup;
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