From: Elena Gryaznova <elena.gryaznova@hpe.com>
Date: Tue, 22 Dec 2020 14:06:09 +0000 (+0300)
Subject: LU-14271 tests: add new node crash method
X-Git-Tag: 2.14.51~136
X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=commitdiff_plain;h=32e96e1a48524da7aa5d2aebc8a217549d763f75

LU-14271 tests: add new node crash method

Patch adds a new node crash method: node crash
is simulated by command executed on the victim nodes.
Example:
  POWER_DOWN=sysrqcrash
triggers a crash  on all victim nodes.

Test-Parameters: trivial
Signed-off-by: Elena Gryaznova <elena.gryaznova@hpe.com>
HPE-bug-id: LUS-8162
Reviewed-by: Vladimir Saveliev <vladimir.saveliev@hpe.com>
Reviewed-by: Sergey Cheremencev <sergey.cheremencev@hpe.com>
Tested-by: Vitaly Fertman <vitaly.fertman@hpe.com>
Change-Id: Id39b0f58fbb59236b3af51516fe968c888b04a17
Reviewed-on: https://review.whamcloud.com/41071
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>
---

diff --git a/lustre/tests/ha.sh b/lustre/tests/ha.sh
index f4c4bb9..c26689d 100755
--- a/lustre/tests/ha.sh
+++ b/lustre/tests/ha.sh
@@ -824,6 +824,20 @@ ha_powermanage()
 	return 0
 }
 
+ha_power_down_cmd_fn()
+{
+	local nodes=$1
+	local cmd
+
+	case $ha_power_down_cmd in
+	# format is: POWER_DOWN=sysrqcrash
+	sysrqcrash) cmd="pdsh -S -w $nodes 'echo c > /proc/sysrq-trigger' &" ;;
+	*) cmd="$ha_power_down_cmd $nodes" ;;
+	esac
+
+	eval $cmd
+}
+
 ha_power_down()
 {
 	local nodes=$1
@@ -833,7 +847,7 @@ ha_power_down()
 
 	case $ha_power_down_cmd in
 		*pm*) state=off ;;
-		*sysrq* ) state=off ;;
+		sysrqcrash) state=off ;;
 		*) state=on;;
 	esac
 
@@ -845,7 +859,7 @@ ha_power_down()
 	ha_info "Powering down $nodes : cmd: $ha_power_down_cmd"
 	for (( i=0; i<10; i++ )) {
 		ha_info "attempt: $i"
-		$ha_power_down_cmd $nodes &&
+		ha_power_down_cmd_fn $nodes &&
 			ha_powermanage $nodes $state && rc=0 && break
 		sleep $ha_power_delay
 	}