tests/destructive/metadata-regeneration

   1 #!/bin/bash
   2 #
   3 # Copyright (C) 2015 Julien Desfossez <jdesfossez@efficios.com>
   4 #
   5 # SPDX-License-Identifier: GPL-2.0-only
   6 #
   7
   8 # WARNING: this test changes the date of the system (and does not set it back).
   9 # This test sets the date of the current machine to $DATE1, creates a trace
  10 # makes sure the trace is really at that date, then restarts the trace, changes
  11 # the date to $DATE2, regenerates the metadata and validates that the trace is
  12 # actually at $DATE2.
  13
  14 TEST_DESC="Metadata regeneration after date change"
  15
  16 CURDIR=$(dirname $0)/
  17 TESTDIR=$CURDIR/..
  18 NUM_TESTS=44
  19 SESSION_NAME="regen"
  20 KERNEL_EVENT_NAME="lttng_test_filter_event"
  21 TRACE_PATH=$(mktemp --tmpdir -d -t tmp.metadata_regen_after_data_change.XXXXXX)
  22
  23 TESTAPP_PATH="$TESTDIR/utils/testapp"
  24 TESTAPP_NAME="gen-ust-events"
  25 TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME"
  26 NR_ITER=1
  27 NR_USEC_WAIT=0
  28 UST_EVENT_NAME="tp:tptest"
  29
  30 DATE1="1970-02-02"
  31 DATE2="1980-02-02"
  32 HOUR="05:30"
  33
  34 source $TESTDIR/utils/utils.sh
  35
  36 # MUST set TESTDIR before calling those functions
  37 plan_tests $NUM_TESTS
  38
  39 print_test_banner "$TEST_DESC"
  40
  41 bail_out_if_no_babeltrace
  42
  43
  44 function validate_trace_date
  45 {
  46         local test_date=$1
  47         local trace_path=$2
  48
  49         res=$($BABELTRACE_BIN --clock-date $trace_path 2>/dev/null | head -1 | grep $test_date)
  50         if [ $? -eq 0 ]; then
  51                 pass "Validate trace at date $test_date"
  52                 ret=0
  53         else
  54                 fail "The trace is not at the expected date"
  55                 ret=-1
  56         fi
  57
  58         return $ret
  59 }
  60
  61 function test_kernel_local ()
  62 {
  63         diag "Test kernel local with metadata regeneration"
  64         date "+%Y-%m-%d %H:%M" -s "$DATE1 $HOUR" >/dev/null
  65         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
  66         lttng_enable_kernel_event $SESSION_NAME $KERNEL_EVENT_NAME
  67         start_lttng_tracing_ok $SESSION_NAME
  68         echo -n "100" > /proc/lttng-test-filter-event
  69         stop_lttng_tracing_ok $SESSION_NAME
  70         validate_trace_date $DATE1 $TRACE_PATH
  71         start_lttng_tracing_ok $SESSION_NAME
  72         date "+%Y-%m-%d %H:%M" -s "$DATE2 $HOUR" >/dev/null
  73         regenerate_metadata_ok $SESSION_NAME
  74         stop_lttng_tracing_ok $SESSION_NAME
  75         validate_trace_date $DATE2 $TRACE_PATH
  76         if [ $? -eq 0 ]; then
  77                 # Only delete if successful
  78                 rm -rf $TRACE_PATH
  79         fi
  80         destroy_lttng_session_ok $SESSION_NAME
  81 }
  82
  83 function test_kernel_streaming ()
  84 {
  85         diag "Test kernel streaming with metadata regeneration"
  86         date "+%Y-%m-%d %H:%M" -s "$DATE1 $HOUR" >/dev/null
  87         create_lttng_session_uri $SESSION_NAME net://localhost
  88         lttng_enable_kernel_event $SESSION_NAME $KERNEL_EVENT_NAME
  89         start_lttng_tracing_ok $SESSION_NAME
  90         echo -n "100" > /proc/lttng-test-filter-event
  91         stop_lttng_tracing_ok $SESSION_NAME
  92         validate_trace_date $DATE1 $TRACE_PATH/$HOSTNAME/$SESSION_NAME*
  93         start_lttng_tracing_ok $SESSION_NAME
  94         date "+%Y-%m-%d %H:%M" -s "$DATE2 $HOUR" >/dev/null
  95         regenerate_metadata_ok $SESSION_NAME
  96         stop_lttng_tracing_ok $SESSION_NAME
  97         # Validate test
  98         validate_trace_date $DATE2 $TRACE_PATH/$HOSTNAME/$SESSION_NAME*
  99         if [ $? -eq 0 ]; then
 100                 # Only delete if successful
 101                 rm -rf $TRACE_PATH
 102         else
 103                 break
 104         fi
 105         destroy_lttng_session_ok $SESSION_NAME
 106 }
 107
 108 function test_ust_local ()
 109 {
 110         local file_sync_after_first=$(mktemp --tmpdir -u -t "tmp.${FUNCNAME[0]}_sync_after_first.XXXXXX")
 111         local file_sync_before_last=$(mktemp --tmpdir -u -t "tmp.${FUNCNAME[0]}_sync_before_last.XXXXXX")
 112
 113         diag "Test UST local with metadata regeneration"
 114         date "+%Y-%m-%d %H:%M" -s "$DATE1 $HOUR" >/dev/null
 115         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
 116         enable_ust_lttng_event_ok $SESSION_NAME $UST_EVENT_NAME
 117
 118         $TESTAPP_BIN -i $NR_ITER -w $NR_USEC_WAIT \
 119                 --sync-after-first-event ${file_sync_after_first} \
 120                 --sync-before-last-event ${file_sync_before_last} > /dev/null 2>&1 &
 121
 122         start_lttng_tracing_ok $SESSION_NAME
 123
 124         touch ${file_sync_before_last}
 125         # Wait for the applications started in background
 126         wait
 127
 128         stop_lttng_tracing_ok $SESSION_NAME
 129         validate_trace_date $DATE1 $TRACE_PATH
 130
 131         start_lttng_tracing_ok $SESSION_NAME
 132         date "+%Y-%m-%d %H:%M" -s "$DATE2 $HOUR" >/dev/null
 133         regenerate_metadata_ok $SESSION_NAME
 134
 135         stop_lttng_tracing_ok $SESSION_NAME
 136         destroy_lttng_session_ok $SESSION_NAME
 137         validate_trace_date $DATE2 $TRACE_PATH
 138         if [ $? -eq 0 ]; then
 139                 # Only delete if successful
 140                 rm -rf $TRACE_PATH
 141         fi
 142         rm -f ${file_sync_after_first}
 143         rm -f ${file_sync_before_last}
 144 }
 145
 146 function test_ust_streaming ()
 147 {
 148         local file_sync_after_first=$(mktemp --tmpdir -u -t "tmp.${FUNCNAME[0]}_sync_after_first.XXXXXX")
 149         local file_sync_before_last=$(mktemp --tmpdir -u -t "tmp.${FUNCNAME[0]}_sync_before_last.XXXXXX")
 150
 151         diag "Test UST streaming with metadata regeneration"
 152         date "+%Y-%m-%d %H:%M" -s "$DATE1 $HOUR" >/dev/null
 153         create_lttng_session_uri $SESSION_NAME net://localhost
 154         enable_ust_lttng_event_ok $SESSION_NAME $UST_EVENT_NAME
 155
 156         $TESTAPP_BIN -i $NR_ITER -w $NR_USEC_WAIT \
 157                 --sync-after-first-event ${file_sync_after_first} \
 158                 --sync-before-last-event ${file_sync_before_last} > /dev/null 2>&1 &
 159
 160         start_lttng_tracing_ok $SESSION_NAME
 161
 162         touch ${file_sync_before_last}
 163
 164         # Wait for the applications started in background
 165         wait
 166         stop_lttng_tracing_ok $SESSION_NAME
 167         validate_trace_date $DATE1 $TRACE_PATH/$HOSTNAME/$SESSION_NAME*
 168
 169         start_lttng_tracing_ok $SESSION_NAME
 170         date "+%Y-%m-%d %H:%M" -s "$DATE2 $HOUR" >/dev/null
 171
 172         regenerate_metadata_ok $SESSION_NAME
 173
 174         stop_lttng_tracing_ok $SESSION_NAME
 175         destroy_lttng_session_ok $SESSION_NAME
 176         # Validate test
 177         validate_trace_date $DATE2 $TRACE_PATH/$HOSTNAME/$SESSION_NAME*
 178         if [ $? -eq 0 ]; then
 179                 # Only delete if successful
 180                 rm -rf $TRACE_PATH
 181         fi
 182         rm -f ${file_sync_after_first}
 183         rm -f ${file_sync_before_last}
 184 }
 185
 186 if [ "$(id -u)" == "0" ]; then
 187         isroot=1
 188 else
 189         isroot=0
 190 fi
 191
 192 if ! destructive_tests_enabled ; then
 193         echo 'You need to set the LTTNG_ENABLE_DESTRUCTIVE_TESTS to "will-break-my-system" as argument to run this test'
 194         echo 'Moreover, please make sure that ntp is not running while executing this test'
 195         exit 0
 196 fi
 197
 198 skip $isroot "Root access is needed. Skipping all tests." $NUM_TESTS ||
 199 {
 200         start_lttng_relayd "-o $TRACE_PATH"
 201         start_lttng_sessiond
 202
 203         modprobe lttng-test
 204         test_kernel_local
 205         test_kernel_streaming
 206         modprobe --remove lttng-test
 207
 208         test_ust_local
 209         test_ust_streaming
 210
 211         stop_lttng_sessiond
 212         stop_lttng_relayd
 213 }