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#!/bin/bash
. $(dirname $0)/../../include.rc
. $(dirname $0)/../../volume.rc
NUM_BRICKS=3
DEMOTE_FREQ=5
PROMOTE_FREQ=5
TEST_STR="Testing write and truncate fops on tier migration"
function is_sticky_set () {
echo $1
if [ -k $1 ];
then
echo "yes"
else
echo "no"
fi
}
# Creates a tiered volume with pure distribute hot and cold tiers
# Both hot and cold tiers will have an equal number of bricks.
function create_dist_tier_vol () {
mkdir $B0/cold
mkdir $B0/hot
TEST $CLI volume create $V0 $H0:$B0/cold/${V0}{0..$1}
TEST $CLI volume set $V0 performance.quick-read off
TEST $CLI volume set $V0 performance.io-cache off
TEST $CLI volume set $V0 features.ctr-enabled on
TEST $CLI volume start $V0
TEST $CLI volume attach-tier $V0 $H0:$B0/hot/${V0}{0..$1}
TEST $CLI volume set $V0 cluster.tier-demote-frequency $DEMOTE_FREQ
TEST $CLI volume set $V0 cluster.tier-promote-frequency $PROMOTE_FREQ
TEST $CLI volume set $V0 cluster.read-freq-threshold 0
TEST $CLI volume set $V0 cluster.write-freq-threshold 0
}
cleanup;
#Basic checks
TEST glusterd
TEST pidof glusterd
TEST $CLI volume info
#Create and start a tiered volume
create_dist_tier_vol $NUM_BRICKS
# Mount FUSE
TEST glusterfs -s $H0 --volfile-id $V0 $M0
TEST mkdir $M0/dir1
# Create a large file (800MB), so that rebalance takes time
# The file will be created on the hot tier
dd if=/dev/zero of=$M0/dir1/FILE1 bs=256k count=5120
# Get the path of the file on the hot tier
HPATH=`find $B0/hot/ -name FILE1`
echo "File path on hot tier: "$HPATH
# Wait for the tier process to demote the file
EXPECT_WITHIN $REBALANCE_TIMEOUT "yes" is_sticky_set $HPATH
TEST $CLI volume set $V0 cluster.tier-pause on
# Wait for the tier process to finish migrating the file
EXPECT_WITHIN $REBALANCE_TIMEOUT "no" is_sticky_set $HPATH
# Get the path of the file on the cold tier
CPATH=`find $B0/cold/ -name FILE1`
# make sure destination is empty
TEST ! test -s $CPATH
# make sure source exists and not empty
TEST test -s $HPATH
cleanup;
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