tests/destructive/metadata-regeneration

   1 #!/bin/bash
   2 #
   3 # Copyright (C) - 2015 Julien Desfossez <jdesfossez@efficios.com>
   4 #
   5 # This program is free software; you can redistribute it and/or modify it
   6 # under the terms of the GNU General Public License, version 2 only, as
   7 # published by the Free Software Foundation.
   8 #
   9 # This program is distributed in the hope that it will be useful, but WITHOUT
  10 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11 # FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12 # more details.
  13 #
  14 # You should have received a copy of the GNU General Public License along with
  15 # this program; if not, write to the Free Software Foundation, Inc., 51
  16 # Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  17
  18 # WARNING: this test changes the date of the system (and does not set it back).
  19 # This test sets the date of the current machine to $DATE1, creates a trace
  20 # makes sure the trace is really at that date, then restarts the trace, changes
  21 # the date to $DATE2, regenerates the metadata and validates that the trace is
  22 # actually at $DATE2.
  23
  24 TEST_DESC="Metadata regeneration after date change"
  25
  26 CURDIR=$(dirname $0)/
  27 TESTDIR=$CURDIR/..
  28 NUM_TESTS=44
  29 SESSION_NAME="regen"
  30 KERNEL_EVENT_NAME="lttng_test_filter_event"
  31 TRACE_PATH=$(mktemp -d)
  32
  33 TESTAPP_PATH="$TESTDIR/utils/testapp"
  34 TESTAPP_NAME="gen-ust-events"
  35 TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME"
  36 NR_ITER=1
  37 NR_USEC_WAIT=0
  38 UST_EVENT_NAME="tp:tptest"
  39
  40 DATE1="1970-02-02"
  41 DATE2="1980-02-02"
  42 HOUR="05:30"
  43
  44 source $TESTDIR/utils/utils.sh
  45
  46 # MUST set TESTDIR before calling those functions
  47 plan_tests $NUM_TESTS
  48
  49 print_test_banner "$TEST_DESC"
  50
  51 function validate_trace_date
  52 {
  53         local test_date=$1
  54         local trace_path=$2
  55
  56         which $BABELTRACE_BIN >/dev/null
  57         if [ $? -ne 0 ]; then
  58             skip 0 "Babeltrace binary not found. Skipping trace validation"
  59         fi
  60
  61         res=$($BABELTRACE_BIN --clock-date $trace_path 2>/dev/null | head -1 | grep $test_date)
  62         if [ $? -eq 0 ]; then
  63                 pass "Validate trace at date $test_date"
  64                 ret=0
  65         else
  66                 fail "The trace is not at the expected date"
  67                 ret=-1
  68         fi
  69
  70         return $ret
  71 }
  72
  73 function test_kernel_local ()
  74 {
  75         diag "Test kernel local with metadata regeneration"
  76         date "+%Y-%m-%d %H:%M" -s "$DATE1 $HOUR" >/dev/null
  77         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
  78         lttng_enable_kernel_event $SESSION_NAME $KERNEL_EVENT_NAME
  79         start_lttng_tracing_ok $SESSION_NAME
  80         echo -n "100" > /proc/lttng-test-filter-event
  81         stop_lttng_tracing_ok $SESSION_NAME
  82         validate_trace_date $DATE1 $TRACE_PATH
  83         start_lttng_tracing_ok $SESSION_NAME
  84         date "+%Y-%m-%d %H:%M" -s "$DATE2 $HOUR" >/dev/null
  85         regenerate_metadata_ok $SESSION_NAME
  86         stop_lttng_tracing_ok $SESSION_NAME
  87         validate_trace_date $DATE2 $TRACE_PATH
  88         if [ $? -eq 0 ]; then
  89                 # Only delete if successful
  90                 rm -rf $TRACE_PATH
  91         fi
  92         destroy_lttng_session_ok $SESSION_NAME
  93 }
  94
  95 function test_kernel_streaming ()
  96 {
  97         diag "Test kernel streaming with metadata regeneration"
  98         date "+%Y-%m-%d %H:%M" -s "$DATE1 $HOUR" >/dev/null
  99         create_lttng_session_uri $SESSION_NAME net://localhost
 100         lttng_enable_kernel_event $SESSION_NAME $KERNEL_EVENT_NAME
 101         start_lttng_tracing_ok $SESSION_NAME
 102         echo -n "100" > /proc/lttng-test-filter-event
 103         stop_lttng_tracing_ok $SESSION_NAME
 104         validate_trace_date $DATE1 $TRACE_PATH/$HOSTNAME/$SESSION_NAME*
 105         start_lttng_tracing_ok $SESSION_NAME
 106         date "+%Y-%m-%d %H:%M" -s "$DATE2 $HOUR" >/dev/null
 107         regenerate_metadata_ok $SESSION_NAME
 108         stop_lttng_tracing_ok $SESSION_NAME
 109         # Validate test
 110         validate_trace_date $DATE2 $TRACE_PATH/$HOSTNAME/$SESSION_NAME*
 111         if [ $? -eq 0 ]; then
 112                 # Only delete if successful
 113                 rm -rf $TRACE_PATH
 114         else
 115                 break
 116         fi
 117         destroy_lttng_session_ok $SESSION_NAME
 118 }
 119
 120 function test_ust_local ()
 121 {
 122         local file_sync_after_first=$(mktemp -u)
 123         local file_sync_before_last=$(mktemp -u)
 124
 125         diag "Test UST local with metadata regeneration"
 126         date "+%Y-%m-%d %H:%M" -s "$DATE1 $HOUR" >/dev/null
 127         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
 128         enable_ust_lttng_event_ok $SESSION_NAME $UST_EVENT_NAME
 129
 130         $TESTAPP_BIN -i $NR_ITER -w $NR_USEC_WAIT \
 131                 --sync-after-first-event ${file_sync_after_first} \
 132                 --sync-before-last-event ${file_sync_before_last} > /dev/null 2>&1 &
 133
 134         start_lttng_tracing_ok $SESSION_NAME
 135
 136         touch ${file_sync_before_last}
 137         # Wait for the applications started in background
 138         wait
 139
 140         stop_lttng_tracing_ok $SESSION_NAME
 141         validate_trace_date $DATE1 $TRACE_PATH
 142
 143         start_lttng_tracing_ok $SESSION_NAME
 144         date "+%Y-%m-%d %H:%M" -s "$DATE2 $HOUR" >/dev/null
 145         regenerate_metadata_ok $SESSION_NAME
 146
 147         stop_lttng_tracing_ok $SESSION_NAME
 148         destroy_lttng_session_ok $SESSION_NAME
 149         validate_trace_date $DATE2 $TRACE_PATH
 150         if [ $? -eq 0 ]; then
 151                 # Only delete if successful
 152                 rm -rf $TRACE_PATH
 153         fi
 154         rm -f ${file_sync_after_first}
 155         rm -f ${file_sync_before_last}
 156 }
 157
 158 function test_ust_streaming ()
 159 {
 160         local file_sync_after_first=$(mktemp -u)
 161         local file_sync_before_last=$(mktemp -u)
 162
 163         diag "Test UST streaming with metadata regeneration"
 164         date "+%Y-%m-%d %H:%M" -s "$DATE1 $HOUR" >/dev/null
 165         create_lttng_session_uri $SESSION_NAME net://localhost
 166         enable_ust_lttng_event_ok $SESSION_NAME $UST_EVENT_NAME
 167
 168         $TESTAPP_BIN -i $NR_ITER -w $NR_USEC_WAIT \
 169                 --sync-after-first-event ${file_sync_after_first} \
 170                 --sync-before-last-event ${file_sync_before_last} > /dev/null 2>&1 &
 171
 172         start_lttng_tracing_ok $SESSION_NAME
 173
 174         touch ${file_sync_before_last}
 175
 176         # Wait for the applications started in background
 177         wait
 178         stop_lttng_tracing_ok $SESSION_NAME
 179         validate_trace_date $DATE1 $TRACE_PATH/$HOSTNAME/$SESSION_NAME*
 180
 181         start_lttng_tracing_ok $SESSION_NAME
 182         date "+%Y-%m-%d %H:%M" -s "$DATE2 $HOUR" >/dev/null
 183
 184         regenerate_metadata_ok $SESSION_NAME
 185
 186         stop_lttng_tracing_ok $SESSION_NAME
 187         destroy_lttng_session_ok $SESSION_NAME
 188         # Validate test
 189         validate_trace_date $DATE2 $TRACE_PATH/$HOSTNAME/$SESSION_NAME*
 190         if [ $? -eq 0 ]; then
 191                 # Only delete if successful
 192                 rm -rf $TRACE_PATH
 193         fi
 194         rm -f ${file_sync_after_first}
 195         rm -f ${file_sync_before_last}
 196 }
 197
 198 if [ "$(id -u)" == "0" ]; then
 199         isroot=1
 200 else
 201         isroot=0
 202 fi
 203
 204 if ! destructive_tests_enabled ; then
 205         echo 'You need to set the LTTNG_ENABLE_DESTRUCTIVE_TESTS to "will-break-my-system" as argument to run this test'
 206         echo 'Moreover, please make sure that ntp is not running while executing this test'
 207         exit 0
 208 fi
 209
 210 skip $isroot "Root access is needed. Skipping all tests." $NUM_TESTS ||
 211 {
 212         start_lttng_relayd "-o $TRACE_PATH"
 213         start_lttng_sessiond
 214
 215         modprobe lttng-test
 216         test_kernel_local
 217         test_kernel_streaming
 218         rmmod lttng-test
 219
 220         test_ust_local
 221         test_ust_streaming
 222
 223         stop_lttng_sessiond
 224         stop_lttng_relayd
 225 }