LU-9931 tests: : fix REQFAIL calculation

[fs/lustre-release.git] / lustre / tests / recovery-random-scale.sh

diff --git a/lustre/tests/recovery-random-scale.sh b/lustre/tests/recovery-random-scale.sh
index 0b88e9d..23f6ee5 100644 (file)
--- a/lustre/tests/recovery-random-scale.sh
+++ b/lustre/tests/recovery-random-scale.sh
@@ -52,8 +52,9 @@ SERVER_FAILOVER_PERIOD=${SERVER_FAILOVER_PERIOD:-$((60 * 10))} # 10 minutes
 
 MINSLEEP=${MINSLEEP:-120}
 REQFAIL_PERCENT=${REQFAIL_PERCENT:-3}    # bug17839 comment 62
-REQFAIL=${REQFAIL:-$((DURATION / SERVER_FAILOVER_PERIOD *
-                      REQFAIL_PERCENT / 100))}
+# round up the result of integer division: C=(A + (B - 1)) / B
+REQFAIL=${REQFAIL:-$(((DURATION * REQFAIL_PERCENT + (SERVER_FAILOVER_PERIOD *
+       100 - 1 )) / SERVER_FAILOVER_PERIOD / 100))}
 
 END_RUN_FILE=${END_RUN_FILE:-$SHARED_DIRECTORY/end_run_file}
 LOAD_PID_FILE=${LOAD_PID_FILE:-$TMP/client-load.pid}