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From a0949929282529e0e866e074721c1bdfe3928c8c Mon Sep 17 00:00:00 2001
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From: N Balachandran <nbalacha@redhat.com>
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Date: Thu, 11 Apr 2019 12:12:12 +0530
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Subject: [PATCH 131/141] tests/dht: Test that lookups are sent post brick up
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upstream: https://review.gluster.org/#/c/glusterfs/+/22545/
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>Change-Id: I3556793c5e9d58cc6a08644b41dc5740fab2610b
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>updates: bz#1628194
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BUG:1704562
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Change-Id: Ie45331298902bd5268c56cb29a966d8246abfd6d
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Signed-off-by: N Balachandran <nbalacha@redhat.com>
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Reviewed-on: https://code.engineering.redhat.com/gerrit/169592
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Tested-by: RHGS Build Bot <nigelb@redhat.com>
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Reviewed-by: Atin Mukherjee <amukherj@redhat.com>
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---
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tests/basic/distribute/brick-down.t | 83 +++++++++++++++++++++++++++++++++++++
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1 file changed, 83 insertions(+)
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create mode 100644 tests/basic/distribute/brick-down.t
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diff --git a/tests/basic/distribute/brick-down.t b/tests/basic/distribute/brick-down.t
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new file mode 100644
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index 0000000..522ccc0
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--- /dev/null
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+++ b/tests/basic/distribute/brick-down.t
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@@ -0,0 +1,83 @@
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+#!/bin/bash
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+
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+. $(dirname $0)/../../include.rc
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+. $(dirname $0)/../../volume.rc
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+. $(dirname $0)/../../common-utils.rc
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+. $(dirname $0)/../../dht.rc
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+
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+# Test 1 overview:
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+# ----------------
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+# Test whether lookups are sent after a brick comes up again
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+#
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+# 1. Create a 3 brick pure distribute volume
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+# 2. Fuse mount the volume so the layout is set on the root
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+# 3. Kill one brick and try to create a directory which hashes to that brick.
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+# It should fail with EIO.
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+# 4. Restart the brick that was killed.
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+# 5. Do not remount the volume. Try to create the same directory as in step 3.
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+
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+cleanup
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+
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+TEST glusterd
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+TEST pidof glusterd
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+
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+TEST $CLI volume create $V0 $H0:$B0/$V0-{1..3}
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+TEST $CLI volume start $V0
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+
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+# We want the lookup to reach DHT
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+TEST $CLI volume set $V0 performance.stat-prefetch off
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+
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+# Mount using FUSE and lookup the mount so a layout is set on the brick root
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+TEST glusterfs --entry-timeout=0 --attribute-timeout=0 -s $H0 --volfile-id $V0 $M0
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+
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+ls $M0/
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+
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+TEST mkdir $M0/level1
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+
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+# Find a dirname that will hash to the brick we are going to kill
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+hashed=$V0-client-1
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+TEST dht_first_filename_with_hashsubvol "$hashed" $M0 "dir-"
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+roottestdir=$fn_return_val
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+
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+hashed=$V0-client-1
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+TEST dht_first_filename_with_hashsubvol "$hashed" $M0/level1 "dir-"
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+level1testdir=$fn_return_val
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+
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+
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+TEST kill_brick $V0 $H0 $B0/$V0-2
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+EXPECT_WITHIN $PROCESS_UP_TIMEOUT "0" brick_up_status $V0 $H0 $B0/$V0-2
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+
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+TEST $CLI volume status $V0
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+
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+
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+# Unmount and mount the volume again so dht has an incomplete in memory layout
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+
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+umount -f $M0
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+TEST glusterfs --entry-timeout=0 --attribute-timeout=0 -s $H0 --volfile-id $V0 $M0
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+
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+
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+mkdir $M0/$roottestdir
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+TEST [ $? -ne 0 ]
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+
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+mkdir $M0/level1/$level1testdir
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+TEST [ $? -ne 0 ]
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+
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+TEST $CLI volume start $V0 force
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+EXPECT_WITHIN $PROCESS_UP_TIMEOUT "1" brick_up_status $V0 $H0 $B0/$V0-2
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+
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+#$CLI volume status
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+
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+# It takes a while for the client to reconnect to the brick
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+sleep 5
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+
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+
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+mkdir $M0/$roottestdir
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+TEST [ $? -eq 0 ]
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+
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+mkdir $M0/$level1/level1testdir
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+TEST [ $? -eq 0 ]
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+
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+# Cleanup
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+cleanup
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+
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+
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--
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1.8.3.1
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