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 lttng_create_session_uri
  52 {
  53         # Create session with default path
  54         $TESTDIR/../src/bin/lttng/$LTTNG_BIN create $SESSION_NAME -U net://localhost >/dev/null 2>&1
  55         ok $? "Create session with default path"
  56 }
  57
  58 function validate_trace_date
  59 {
  60         local test_date=$1
  61         local trace_path=$2
  62
  63         which $BABELTRACE_BIN >/dev/null
  64         if [ $? -ne 0 ]; then
  65             skip 0 "Babeltrace binary not found. Skipping trace validation"
  66         fi
  67
  68         res=$($BABELTRACE_BIN --clock-date $trace_path 2>/dev/null | head -1 | grep $test_date)
  69         if [ $? -eq 0 ]; then
  70                 pass "Validate trace at date $test_date"
  71                 ret=0
  72         else
  73                 fail "The trace is not at the expected date"
  74                 ret=-1
  75         fi
  76
  77         return $ret
  78 }
  79
  80 function test_kernel_local ()
  81 {
  82         diag "Test kernel local with metadata regeneration"
  83         date "+%Y-%m-%d %H:%M" -s "$DATE1 $HOUR" >/dev/null
  84         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
  85         lttng_enable_kernel_event $SESSION_NAME $KERNEL_EVENT_NAME
  86         start_lttng_tracing_ok $SESSION_NAME
  87         echo -n "100" > /proc/lttng-test-filter-event
  88         stop_lttng_tracing_ok $SESSION_NAME
  89         validate_trace_date $DATE1 $TRACE_PATH
  90         start_lttng_tracing_ok $SESSION_NAME
  91         date "+%Y-%m-%d %H:%M" -s "$DATE2 $HOUR" >/dev/null
  92         metadata_regenerate_ok $SESSION_NAME
  93         stop_lttng_tracing_ok $SESSION_NAME
  94         validate_trace_date $DATE2 $TRACE_PATH
  95         if [ $? -eq 0 ]; then
  96                 # Only delete if successful
  97                 rm -rf $TRACE_PATH
  98         fi
  99         destroy_lttng_session_ok $SESSION_NAME
 100 }
 101
 102 function test_kernel_streaming ()
 103 {
 104         diag "Test kernel streaming with metadata regeneration"
 105         date "+%Y-%m-%d %H:%M" -s "$DATE1 $HOUR" >/dev/null
 106         lttng_create_session_uri
 107         lttng_enable_kernel_event $SESSION_NAME $KERNEL_EVENT_NAME
 108         start_lttng_tracing_ok $SESSION_NAME
 109         echo -n "100" > /proc/lttng-test-filter-event
 110         stop_lttng_tracing_ok $SESSION_NAME
 111         validate_trace_date $DATE1 $TRACE_PATH/$HOSTNAME/$SESSION_NAME*
 112         start_lttng_tracing_ok $SESSION_NAME
 113         date "+%Y-%m-%d %H:%M" -s "$DATE2 $HOUR" >/dev/null
 114         metadata_regenerate_ok $SESSION_NAME
 115         stop_lttng_tracing_ok $SESSION_NAME
 116         # Validate test
 117         validate_trace_date $DATE2 $TRACE_PATH/$HOSTNAME/$SESSION_NAME*
 118         if [ $? -eq 0 ]; then
 119                 # Only delete if successful
 120                 rm -rf $TRACE_PATH
 121         else
 122                 break
 123         fi
 124         destroy_lttng_session_ok $SESSION_NAME
 125 }
 126
 127 function test_ust_local ()
 128 {
 129         local file_sync_after_first=$(mktemp -u)
 130         local file_sync_before_last=$(mktemp -u)
 131
 132         diag "Test UST local with metadata regeneration"
 133         date "+%Y-%m-%d %H:%M" -s "$DATE1 $HOUR" >/dev/null
 134         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
 135         enable_ust_lttng_event_ok $SESSION_NAME $UST_EVENT_NAME
 136
 137         $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT ${file_sync_after_first} ${file_sync_before_last} /dev/null 2>&1 &
 138
 139         start_lttng_tracing_ok $SESSION_NAME
 140
 141         touch ${file_sync_before_last}
 142         # Wait for the applications started in background
 143         wait
 144
 145         stop_lttng_tracing_ok $SESSION_NAME
 146         validate_trace_date $DATE1 $TRACE_PATH
 147
 148         start_lttng_tracing_ok $SESSION_NAME
 149         date "+%Y-%m-%d %H:%M" -s "$DATE2 $HOUR" >/dev/null
 150         metadata_regenerate_ok $SESSION_NAME
 151
 152         stop_lttng_tracing_ok $SESSION_NAME
 153         destroy_lttng_session_ok $SESSION_NAME
 154         validate_trace_date $DATE2 $TRACE_PATH
 155         if [ $? -eq 0 ]; then
 156                 # Only delete if successful
 157                 rm -rf $TRACE_PATH
 158         fi
 159         rm -f ${file_sync_after_first}
 160         rm -f ${file_sync_before_last}
 161 }
 162
 163 function test_ust_streaming ()
 164 {
 165         local file_sync_after_first=$(mktemp -u)
 166         local file_sync_before_last=$(mktemp -u)
 167
 168         diag "Test UST streaming with metadata regeneration"
 169         date "+%Y-%m-%d %H:%M" -s "$DATE1 $HOUR" >/dev/null
 170         lttng_create_session_uri
 171         enable_ust_lttng_event_ok $SESSION_NAME $UST_EVENT_NAME
 172
 173         $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT ${file_sync_after_first} ${file_sync_before_last} /dev/null 2>&1 &
 174
 175         start_lttng_tracing_ok $SESSION_NAME
 176
 177         touch ${file_sync_before_last}
 178
 179         # Wait for the applications started in background
 180         wait
 181         stop_lttng_tracing_ok $SESSION_NAME
 182         validate_trace_date $DATE1 $TRACE_PATH/$HOSTNAME/$SESSION_NAME*
 183
 184         start_lttng_tracing_ok $SESSION_NAME
 185         date "+%Y-%m-%d %H:%M" -s "$DATE2 $HOUR" >/dev/null
 186
 187         metadata_regenerate_ok $SESSION_NAME
 188
 189         stop_lttng_tracing_ok $SESSION_NAME
 190         destroy_lttng_session_ok $SESSION_NAME
 191         # Validate test
 192         validate_trace_date $DATE2 $TRACE_PATH/$HOSTNAME/$SESSION_NAME*
 193         if [ $? -eq 0 ]; then
 194                 # Only delete if successful
 195                 rm -rf $TRACE_PATH
 196         fi
 197         rm -f ${file_sync_after_first}
 198         rm -f ${file_sync_before_last}
 199 }
 200
 201 if [ "$(id -u)" == "0" ]; then
 202         isroot=1
 203 else
 204         isroot=0
 205 fi
 206
 207 if ! destructive_tests_enabled ; then
 208         echo 'You need to set the LTTNG_ENABLE_DESTRUCTIVE_TESTS to "will-break-my-system" as argument to run this test'
 209         echo 'Moreover, please make sure that ntp is not running while executing this test'
 210         exit 0
 211 fi
 212
 213 skip $isroot "Root access is needed. Skipping all tests." $NUM_TESTS ||
 214 {
 215         start_lttng_relayd "-o $TRACE_PATH"
 216         start_lttng_sessiond
 217
 218         modprobe lttng-test
 219         test_kernel_local
 220         test_kernel_streaming
 221         rmmod lttng-test
 222
 223         test_ust_local
 224         test_ust_streaming
 225
 226         stop_lttng_sessiond
 227         stop_lttng_relayd
 228 }