#!/bin/bash
-
+#
# client failure does not affect other clients
# Start load on clients (each client works on it's own directory).
# 10 minute intervals and verify that no application errors occur.
# Test runs one of CLIENT_LOAD progs on remote clients.
+set -e
-LUSTRE=${LUSTRE:-`dirname $0`/..}
-SETUP=${SETUP:-""}
-CLEANUP=${CLEANUP:-""}
-. $LUSTRE/tests/test-framework.sh
+ONLY=${ONLY:-"$*"}
+LUSTRE=${LUSTRE:-$(dirname $0)/..}
+. $LUSTRE/tests/test-framework.sh
init_test_env $@
+init_logging
-. ${CONFIG:=$LUSTRE/tests/cfg/$NAME.sh}
-
-TESTSUITELOG=${TESTSUITELOG:-$TMP/recovery-random-scale}
-DEBUGLOG=$TESTSUITELOG.debug
-exec 2>$DEBUGLOG
-echo "--- env ---" >&2
-env >&2
-echo "--- env ---" >&2
-set -x
-
-[ "$SHARED_DIRECTORY" ] || \
- { skip "$0: Empty SHARED_DIRECTORY" && exit 0; }
-
-[ -n "$CLIENTS" ] || { skip "$0 Need two or more remote clients" && exit 0; }
-[ $CLIENTCOUNT -ge 3 ] || \
- { skip "$0 Need two or more clients, have $CLIENTCOUNT" && exit 0; }
-
-END_RUN_FILE=${END_RUN_FILE:-$SHARED_DIRECTORY/end_run_file}
-LOAD_PID_FILE=${LOAD_PID_FILE:-$TMP/client-load.pid}
-
-remote_mds_nodsh && skip "remote MDS with nodsh" && exit 0
+# bug number for skipped test:
+ALWAYS_EXCEPT="$RECOVERY_RANDOM_SCALE_EXCEPT"
+# UPDATE THE COMMENT ABOVE WITH BUG NUMBERS WHEN CHANGING ALWAYS_EXCEPT!
build_test_filter
-check_and_setup_lustre
-rm -rf $DIR/[df][0-9]*
+remote_mds_nodsh && skip_env "remote MDS with nodsh" && exit 0
+remote_ost_nodsh && skip_env "remote OST with nodsh" && exit 0
-# the test node needs to be insulated from a lustre failure as much as possible,
-# so not even loading the lustre modules is ideal.
-# -- umount lustre
-# -- remove hostname from clients list
-zconf_umount $(hostname) $MOUNT
-NODES_TO_USE=${NODES_TO_USE:-$CLIENTS}
-NODES_TO_USE=$(exclude_items_from_list $NODES_TO_USE $(hostname))
+[ -z "$CLIENTS" -o $CLIENTCOUNT -lt 3 ] &&
+ skip_env "need three or more clients" && exit 0
-check_progs_installed $NODES_TO_USE ${CLIENT_LOADS[@]}
+if [ -z "$SHARED_DIRECTORY" ] || ! check_shared_dir $SHARED_DIRECTORY; then
+ skip_env "SHARED_DIRECTORY should be specified with a shared directory \
+which is accessable on all of the nodes"
+ exit 0
+fi
-MDTS=$(get_facets MDS)
+[[ $FAILURE_MODE = SOFT ]] && \
+ log "WARNING: $0 is not functional with FAILURE_MODE = SOFT, bz22797"
+
+# Application failures are allowed for the failed client
+# but not for other clients.
+ERRORS_OK="yes"
if [ "$SLOW" = "no" ]; then
DURATION=${DURATION:-$((60 * 30))}
- SERVER_FAILOVER_PERIOD=${SERVER_FAILOVER_PERIOD:-$((60 * 5))}
else
DURATION=${DURATION:-$((60 * 60 * 24))}
- SERVER_FAILOVER_PERIOD=${SERVER_FAILOVER_PERIOD:-$((60 * 10))} # 10 minutes
fi
+SERVER_FAILOVER_PERIOD=${SERVER_FAILOVER_PERIOD:-$((60 * 10))} # 10 minutes
-rm -f $END_RUN_FILE
+MINSLEEP=${MINSLEEP:-120}
+REQFAIL_PERCENT=${REQFAIL_PERCENT:-3} # bug17839 comment 62
+# round up the result of integer division: C=(A + (B - 1)) / B
+REQFAIL=${REQFAIL:-$(((DURATION * REQFAIL_PERCENT + (SERVER_FAILOVER_PERIOD *
+ 100 - 1 )) / SERVER_FAILOVER_PERIOD / 100))}
-vmstatLOG=${TESTSUITELOG}_$(basename $0 .sh).vmstat
+END_RUN_FILE=${END_RUN_FILE:-$SHARED_DIRECTORY/end_run_file}
+LOAD_PID_FILE=${LOAD_PID_FILE:-$TMP/client-load.pid}
+VMSTAT_PID_FILE=${VMSTAT_PID_FILE:-$TMP/vmstat.pid}
numfailovers () {
local facet
local var
- for facet in $MDTS ${failed_clients//,/ }; do
+ for facet in $MDTS ${FAILED_CLIENTS//,/ }; do
var=${facet}_nums
val=${!var}
if [ "$val" ] ; then
- echo "$facet failed over $val times"
+ echo "$facet failed over $val times"
fi
done
}
-# list is comma separated
-print_logs () {
- local list=$1
-
- do_nodes $list "node=\\\$(hostname)
-var=\\\${node}_load
-log=${TESTSUITELOG}_run_${!var}.sh-\\\$node.debug
-if [ -e \\\$log ] ; then
-echo Node \\\$node debug log:
-cat \\\$log
-fi"
-}
-
summary_and_cleanup () {
-
local rc=$?
- local var
trap 0
# Having not empty END_RUN_FILE means the failed loads only
if [ -s $END_RUN_FILE ]; then
- echo "Found the END_RUN_FILE file: $END_RUN_FILE"
- cat $END_RUN_FILE
- local END_RUN_NODE=
- read END_RUN_NODE < $END_RUN_FILE
-
- # a client load will end (i.e. fail) if it finds
- # the end run file. that does not mean that that client load
- # actually failed though. the first node in the END_RUN_NODE is
- # the one we are really interested in.
- if [ -n "$END_RUN_NODE" ]; then
- var=${END_RUN_NODE}_load
- echo "Client load failed on node $END_RUN_NODE"
- echo
- echo "client $END_RUN_NODE load stdout and debug files :
- ${TESTSUITELOG}_run_${!var}.sh-${END_RUN_NODE}
- ${TESTSUITELOG}_run_${!var}.sh-${END_RUN_NODE}.debug"
- fi
+ print_end_run_file $END_RUN_FILE
rc=1
fi
-
echo $(date +'%F %H:%M:%S') Terminating clients loads ...
echo "$0" >> $END_RUN_FILE
local result=PASS
[ $rc -eq 0 ] || result=FAIL
- log "Duraion: $DURATION
+ log "Duration: $DURATION
Server failover period: $SERVER_FAILOVER_PERIOD seconds
Exited after: $ELAPSED seconds
Number of failovers before exit:
$(numfailovers)
Status: $result: rc=$rc"
- # stop the vmstats on the OSTs
- if [ "$VMSTAT" ]; then
- do_nodes $(comma_list $(osts_nodes)) "test -f /tmp/vmstat.pid && \
- { kill -s TERM \$(cat /tmp/vmstat.pid); rm -f /tmp/vmstat.pid; \
- gzip -f9 $vmstatLOG-\$(hostname); }"
- fi
-
- # make sure the client loads die
- do_nodes $NODES_TO_USE "set -x; test -f $LOAD_PID_FILE && \
- { kill -s TERM \$(cat $LOAD_PID_FILE) || true; }"
+ # stop vmstat on OSS nodes
+ [ "$VMSTAT" ] && stop_process $(comma_list $(osts_nodes)) $VMSTAT_PID_FILE
- # and free up the pdshes that started them, if any are still around
- if [ -n "$CLIENT_LOAD_PIDS" ]; then
- kill $CLIENT_LOAD_PIDS || true
- sleep 5
- kill -9 $CLIENT_LOAD_PIDS || true
- fi
+ # stop the client loads
+ stop_client_loads $NODES_TO_USE $LOAD_PID_FILE
- if [ $rc -ne 0 ]; then
- print_logs $NODES_TO_USE
- fi
+ if [ $rc -ne 0 ]; then
+ # we are interested in only on failed clients and servers
+ local failedclients=$(cat $END_RUN_FILE | grep -v $0)
+ gather_logs $(comma_list $(all_server_nodes) $failedclients)
+ fi
- if [ $rc -eq 0 ]; then
- zconf_mount $(hostname) $MOUNT
- else
- error "exited with rc=$rc"
- fi
exit $rc
}
-#
-# MAIN
-#
-log "-----============= $0 starting =============-----"
+################################## Main Flow ###################################
+check_and_setup_lustre
+rm -rf $DIR/[Rdfs][0-9]*
-trap summary_and_cleanup EXIT # INT
+MAX_RECOV_TIME=$(max_recovery_time)
-ELAPSED=0
+# The test node needs to be insulated from a lustre failure as much as possible,
+# so not even loading the lustre modules is ideal.
+# -- umount lustre
+# -- remove hostname from clients list
+zconf_umount $HOSTNAME $MOUNT
+NODES_TO_USE=${NODES_TO_USE:-$CLIENTS}
+NODES_TO_USE=$(exclude_items_from_list $NODES_TO_USE $HOSTNAME)
-# vmstat the osts
-if [ "$VMSTAT" ]; then
- do_nodes $(comma_list $(osts_nodes)) "vmstat 1 > $vmstatLOG-\$(hostname) 2>/dev/null </dev/null & echo \$! > /tmp/vmstat.pid"
-fi
+check_progs_installed $NODES_TO_USE ${CLIENT_LOADS[@]}
-# Start client loads.
-start_client_loads $NODES_TO_USE
+MDTS=$(get_facets MDS)
-echo clients load pids:
-if ! do_nodes $NODES_TO_USE "set -x; echo \$(hostname): && cat $LOAD_PID_FILE"; then
- if [ -e $DEBUGLOG ]; then
- exec 2<&-
- cat $DEBUGLOG
- exit 3
- fi
-fi
+# Fail a random client and then failover a random MDS.
+test_fail_client_mds() {
+ local fail_client
+ local serverfacet
+ local client_var
+ local var
-START_TS=$(date +%s)
-CURRENT_TS=$START_TS
+ trap summary_and_cleanup EXIT INT
-MINSLEEP=${MINSLEEP:-120}
-REQFAIL_PERCENT=${REQFAIL_PERCENT:-3} # bug17839 comment 62
-REQFAIL=${REQFAIL:-$(( DURATION / SERVER_FAILOVER_PERIOD * REQFAIL_PERCENT / 100))}
-reqfail=0
-sleep=0
+ # start vmstat on OSS nodes
+ [ "$VMSTAT" ] && start_vmstat $(comma_list $(osts_nodes)) $VMSTAT_PID_FILE
-# This is used for FAIL_CLIENT only
-ERRORS_OK="yes"
-while [ $ELAPSED -lt $DURATION -a ! -e $END_RUN_FILE ]; do
+ # start client loads
+ rm -f $END_RUN_FILE
+ start_client_loads $NODES_TO_USE
- # In order to perform the
- # expected number of failovers, we need to account the following :
- # 1) the time that has elapsed during the client load checking
- # 2) time takes for failover
+ echo client loads pids:
+ do_nodesv $NODES_TO_USE "cat $LOAD_PID_FILE" || exit 3
- it_time_start=$(date +%s)
-
- FAIL_CLIENT=$(get_random_entry $NODES_TO_USE)
- client_var=$(client_var_name $FAIL_CLIENT)_nums
+ ELAPSED=0
+ local sleep=0
+ local reqfail=0
+ local it_time_start
+ local start_ts=$(date +%s)
+ local current_ts=$start_ts
- # store the list of failed clients
- # lists are comma separated
- failed_clients=$(expand_list $failed_clients $FAIL_CLIENT)
+ while [ $ELAPSED -lt $DURATION -a ! -e $END_RUN_FILE ]; do
+ # In order to perform the
+ # expected number of failovers, we need to account the following:
+ # 1) the time that has elapsed during the client load checking
+ # 2) time takes for failover
+ it_time_start=$(date +%s)
- SERVERFACET=$(get_random_entry $MDTS)
- var=${SERVERFACET}_nums
+ fail_client=$(get_random_entry $NODES_TO_USE)
+ client_var=$(node_var_name $fail_client)_nums
- # Check that our client loads are still running. If any have died,
- # that means they have died outside of recovery, which is unacceptable.
+ # store the list of failed clients
+ # lists are comma separated
+ FAILED_CLIENTS=$(expand_list $FAILED_CLIENTS $fail_client)
- log "==== Checking the clients loads BEFORE failover -- failure NOT OK \
- ELAPSED=$ELAPSED DURATION=$DURATION PERIOD=$SERVER_FAILOVER_PERIOD"
+ serverfacet=$(get_random_entry $MDTS)
+ var=${serverfacet}_nums
- if ! check_client_loads $NODES_TO_USE; then
- exit 4
- fi
+ # Check that our client loads are still running. If any have died,
+ # that means they have died outside of recovery, which is unacceptable.
+ log "==== Checking the clients loads BEFORE failover -- failure NOT OK \
+ ELAPSED=$ELAPSED DURATION=$DURATION PERIOD=$SERVER_FAILOVER_PERIOD"
+ check_client_loads $NODES_TO_USE || exit 4
- log "FAIL CLIENT $FAIL_CLIENT ... "
- shutdown_client $FAIL_CLIENT
+ log "FAIL CLIENT $fail_client..."
+ shutdown_client $fail_client
- log "Starting failover on $SERVERFACET"
+ log "Starting failover on $serverfacet"
+ facet_failover "$serverfacet" || exit 1
- facet_failover "$SERVERFACET" || exit 1
- if ! wait_recovery_complete $SERVERFACET $((TIMEOUT * 10)); then
- echo "$SERVERFACET recovery is not completed!"
- exit 7
- fi
-
- boot_node $FAIL_CLIENT
- echo "Reintegrating $FAIL_CLIENT"
- zconf_mount $FAIL_CLIENT $MOUNT || exit $?
-
- # Increment the number of failovers
- val=$((${!var} + 1))
- eval $var=$val
- val=$((${!client_var} + 1))
- eval $client_var=$val
-
- # load script on failed clients could create END_RUN_FILE
- # We shuold remove it and ignore the failure if this
- # file contains the failed client only.
- # We can not use ERRORS_OK when start all loads at the start of this script
- # because the application errors allowed for random failed client only, but
- # not for all clients.
- if [ -e $END_RUN_FILE ]; then
- read END_RUN_NODE < $END_RUN_FILE
- [[ $END_RUN_NODE = $FAIL_CLIENT ]] &&
- rm -f $END_RUN_FILE || exit 13
- fi
-
- restart_client_loads $FAIL_CLIENT $ERRORS_OK || exit $?
+ if ! wait_recovery_complete $serverfacet; then
+ echo "$serverfacet recovery is not completed!"
+ exit 7
+ fi
- # Check that not failed clients loads are still running.
- # No application failures should occur on clients that was not failed.
+ boot_node $fail_client
+ echo "Reintegrating $fail_client"
+ zconf_mount $fail_client $MOUNT || exit $?
+ client_up $fail_client || exit $?
+
+ # Increment the number of failovers
+ val=$((${!var} + 1))
+ eval $var=$val
+ val=$((${!client_var} + 1))
+ eval $client_var=$val
+
+ # load script on failed clients could create END_RUN_FILE
+ # We shuold remove it and ignore the failure if this
+ # file contains the failed client only.
+ # We can not use ERRORS_OK when start all loads at the start of
+ # this script because the application errors allowed for random
+ # failed client only, but not for all clients.
+ if [ -e $END_RUN_FILE ]; then
+ local end_run_node
+ read end_run_node < $END_RUN_FILE
+ [[ $end_run_node = $fail_client ]] &&
+ rm -f $END_RUN_FILE || exit 13
+ fi
- log "==== Checking the clients loads AFTER failed client reintegrated -- failure NOT OK"
- if ! ERRORS_OK= check_client_loads $(exclude_items_from_list $NODES_TO_USE $FAIL_CLIENT); then
- log "Client load failed. Exiting"
- exit 5
- fi
+ restart_client_loads $fail_client $ERRORS_OK || exit $?
+
+ # Check that not failed clients loads are still running.
+ # No application failures should occur on clients that were not failed.
+ log "==== Checking the clients loads AFTER failed client reintegrated \
+-- failure NOT OK"
+ if ! ERRORS_OK= check_client_loads \
+ $(exclude_items_from_list $NODES_TO_USE $fail_client); then
+ log "Client load failed. Exiting..."
+ exit 5
+ fi
- CURRENT_TS=$(date +%s)
- ELAPSED=$((CURRENT_TS - START_TS))
-
- sleep=$((SERVER_FAILOVER_PERIOD-(CURRENT_TS - it_time_start)))
-
- # keep count the number of itterations when
- # time spend to failover and two client loads check exceeded
- # the value ( SERVER_FAILOVER_PERIOD - MINSLEEP )
- if [ $sleep -lt $MINSLEEP ]; then
- reqfail=$((reqfail +1))
- log "WARNING: failover, client reintegration and check_client_loads time
-exceeded SERVER_FAILOVER_PERIOD - MINSLEEP !
-Failed to meet interval $reqfail times ( REQFAIL=$REQFAIL ); have sleep=$sleep"
- [ $reqfail -gt $REQFAIL ] && exit 6
- fi
-
- log " Number of failovers:
+ current_ts=$(date +%s)
+ ELAPSED=$((current_ts - start_ts))
+ sleep=$((SERVER_FAILOVER_PERIOD - (current_ts - it_time_start)))
+
+ # Keep counting the number of iterations when
+ # time spent to failover and two client loads check exceeded
+ # the value ( SERVER_FAILOVER_PERIOD - MINSLEEP ).
+ if [ $sleep -lt $MINSLEEP ]; then
+ reqfail=$((reqfail + 1))
+ log "WARNING: failover, client reintegration and \
+check_client_loads time exceeded SERVER_FAILOVER_PERIOD - MINSLEEP!
+Failed to load the filesystem with I/O for a minimum period of \
+$MINSLEEP $reqfail times ( REQFAIL=$REQFAIL ).
+This iteration, the load was only applied for sleep=$sleep seconds.
+Estimated max recovery time : $MAX_RECOV_TIME
+Probably the hardware is taking excessively long time to boot.
+Try to increase SERVER_FAILOVER_PERIOD (current is $SERVER_FAILOVER_PERIOD), \
+bug 20918"
+ [ $reqfail -gt $REQFAIL ] && exit 6
+ fi
+
+ log "Number of failovers:
$(numfailovers) and counting..."
- if [ $sleep -gt 0 ]; then
- echo "sleeping $sleep seconds ... "
- sleep $sleep
- fi
-done
+ [ $((ELAPSED + sleep)) -ge $DURATION ] && break
+
+ if [ $sleep -gt 0 ]; then
+ echo "sleeping $sleep seconds... "
+ sleep $sleep
+ fi
+ done
+ exit 0
+}
+run_test fail_client_mds "fail client, then failover MDS"
+
+zconf_mount $HOSTNAME $MOUNT || error "mount $MOUNT on $HOSTNAME failed"
+client_up || error "start client on $HOSTNAME failed"
-exit 0
+complete $SECONDS
+check_and_cleanup_lustre
+exit_status
git://git.whamcloud.com / fs / lustre-release.git / blobdiff