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authorJoseph Fernandes <josferna@redhat.com>2015-08-04 20:38:06 +0530
committerDan Lambright <dlambrig@redhat.com>2015-10-10 10:42:07 -0700
commitf6618acd4f7642dab19445e35cf2c7fbc8244a5e (patch)
treedf8997f7e472cb5ad1f7d95cef29e24ab5071923 /tests/basic/tier
parent672baab88fb7f32e844cd4be22e0924e4e0e83fc (diff)
tier/ctr: CTR DB named lookup heal of cold tier during attach tier
Heal hardlink in the db for already existing data in the cold tier during attach tier. i.e during fix layout do lookup to files in the cold tier. CTR xlator on the brick/server side does db update/insert of the hardlink on a namelookup. Currently the namedlookup is done synchronous to the fixlayout that is triggered by attach tier. This is not performant, adding more time to fixlayout. The performant approach is record the hardlinks on a compressed datastore and then do the namelookup asynchronously later, giving the ctr db eventual consistency Change-Id: I4ffc337fffe7d447804786851a9183a51b5044a9 BUG: 1252586 Signed-off-by: Joseph Fernandes <josferna@redhat.com> Reviewed-on: http://review.gluster.org/11828 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Dan Lambright <dlambrig@redhat.com> Tested-by: Dan Lambright <dlambrig@redhat.com>
Diffstat (limited to 'tests/basic/tier')
-rw-r--r--tests/basic/tier/legacy-many.t122
1 files changed, 122 insertions, 0 deletions
diff --git a/tests/basic/tier/legacy-many.t b/tests/basic/tier/legacy-many.t
new file mode 100644
index 00000000000..17275494aba
--- /dev/null
+++ b/tests/basic/tier/legacy-many.t
@@ -0,0 +1,122 @@
+#!/bin/bash
+
+. $(dirname $0)/../../include.rc
+. $(dirname $0)/../../volume.rc
+
+LAST_BRICK=3
+CACHE_BRICK_FIRST=4
+CACHE_BRICK_LAST=5
+DEMOTE_TIMEOUT=12
+PROMOTE_TIMEOUT=5
+MIGRATION_TIMEOUT=10
+DEMOTE_FREQ=60
+PROMOTE_FREQ=4
+TEST_DIR="test_files"
+NUM_FILES=20
+
+
+# Grab md5sum without file path (failed attempt notifications are discarded)
+function fingerprint {
+ md5sum $1 2> /dev/null | grep --only-matching -m 1 '^[0-9a-f]*'
+}
+
+# Create a large number of files. Store their md5 signatures.
+function create_many_files {
+ mkdir ${TEST_DIR}
+ for i in `seq 1 $NUM_FILES`; do
+ dd if=/dev/urandom of=./${TEST_DIR}/i$i bs=1048576 count=1;
+ id[i]=$(fingerprint "./${TEST_DIR}/i$i");
+ done
+}
+
+function confirm_tier_removed {
+ $CLI system getspec $V0 | grep $1
+ if [ $? == 0 ]; then
+ echo "1"
+ else
+ echo "0"
+ fi
+}
+
+function confirm_vol_stopped {
+ $CLI volume stop $1
+ if [ $? == 0 ]; then
+ echo "0"
+ else
+ echo "1"
+ fi
+}
+
+function check_counters {
+ index=0
+ ret=0
+ rm -f /tmp/tc*.txt
+ echo "0" > /tmp/tc2.txt
+
+ $CLI volume rebalance $V0 tier status | grep localhost > /tmp/tc.txt
+
+ promote=`cat /tmp/tc.txt |awk '{print $2}'`
+ demote=`cat /tmp/tc.txt |awk '{print $3}'`
+ if [ "${promote}" != "${1}" ]; then
+ echo "1" > /tmp/tc2.txt
+
+ elif [ "${demote}" != "${2}" ]; then
+ echo "2" > /tmp/tc2.txt
+ fi
+
+ # temporarily disable non-Linux tests.
+ case $OSTYPE in
+ NetBSD | FreeBSD | Darwin)
+ echo "0" > /tmp/tc2.txt
+ ;;
+ esac
+ cat /tmp/tc2.txt
+}
+
+function read_all {
+ for file in *
+ do
+ cat $file
+ done
+}
+
+cleanup
+
+TEST glusterd
+TEST pidof glusterd
+
+# Create distributed replica volume
+TEST $CLI volume create $V0 replica 2 $H0:$B0/${V0}{0..$LAST_BRICK}
+TEST $CLI volume start $V0
+
+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 $GFS --volfile-id=/$V0 --volfile-server=$H0 $M0;
+
+# Create a number of "legacy" files before attaching tier
+cd $M0
+TEST create_many_files
+wait
+
+# Attach tier
+TEST $CLI volume attach-tier $V0 replica 2 $H0:$B0/${V0}$CACHE_BRICK_FIRST $H0:$B0/${V0}$CACHE_BRICK_LAST
+TEST $CLI volume rebalance $V0 tier status
+
+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
+
+# Read "legacy" files
+drop_cache $M0
+cd ${TEST_DIR}
+TEST read_all
+
+# Test to make sure files were promoted as expected
+sleep $DEMOTE_TIMEOUT
+EXPECT_WITHIN $DEMOTE_TIMEOUT "0" check_counters 20 0
+
+cd;
+cleanup