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=$(mktemp -d -t tmp.metadata_regen_after_data_change.XXXXXX)
  22
  23 TESTAPP_PATH="$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                 return
 104         fi
 105         destroy_lttng_session_ok $SESSION_NAME
 106 }
 107
 108 function test_ust_local ()
 109 {
 110         local file_sync_after_first
 111         local file_sync_before_last
 112
 113         file_sync_after_first=$(mktemp -u -t "tmp.${FUNCNAME[0]}_sync_after_first.XXXXXX")
 114         file_sync_before_last=$(mktemp -u -t "tmp.${FUNCNAME[0]}_sync_before_last.XXXXXX")
 115
 116         diag "Test UST local with metadata regeneration"
 117         date "+%Y-%m-%d %H:%M" -s "$DATE1 $HOUR" >/dev/null
 118         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
 119         enable_ust_lttng_event_ok $SESSION_NAME $UST_EVENT_NAME
 120
 121         $TESTAPP_BIN -i $NR_ITER -w $NR_USEC_WAIT \
 122                 --sync-after-first-event "${file_sync_after_first}" \
 123                 --sync-before-last-event "${file_sync_before_last}" > /dev/null 2>&1 &
 124
 125         start_lttng_tracing_ok $SESSION_NAME
 126
 127         touch "${file_sync_before_last}"
 128         # Wait for the applications started in background
 129         wait
 130
 131         stop_lttng_tracing_ok $SESSION_NAME
 132         validate_trace_date $DATE1 "$TRACE_PATH"
 133
 134         start_lttng_tracing_ok $SESSION_NAME
 135         date "+%Y-%m-%d %H:%M" -s "$DATE2 $HOUR" >/dev/null
 136         regenerate_metadata_ok $SESSION_NAME
 137
 138         stop_lttng_tracing_ok $SESSION_NAME
 139         destroy_lttng_session_ok $SESSION_NAME
 140         validate_trace_date $DATE2 "$TRACE_PATH"
 141         if [ $? -eq 0 ]; then
 142                 # Only delete if successful
 143                 rm -rf "$TRACE_PATH"
 144         fi
 145         rm -f "${file_sync_after_first}"
 146         rm -f "${file_sync_before_last}"
 147 }
 148
 149 function test_ust_streaming ()
 150 {
 151         local file_sync_after_first
 152         local file_sync_before_last
 153
 154         file_sync_after_first=$(mktemp -u -t "tmp.${FUNCNAME[0]}_sync_after_first.XXXXXX")
 155         file_sync_before_last=$(mktemp -u -t "tmp.${FUNCNAME[0]}_sync_before_last.XXXXXX")
 156
 157         diag "Test UST streaming with metadata regeneration"
 158         date "+%Y-%m-%d %H:%M" -s "$DATE1 $HOUR" >/dev/null
 159         create_lttng_session_uri $SESSION_NAME net://localhost
 160         enable_ust_lttng_event_ok $SESSION_NAME $UST_EVENT_NAME
 161
 162         $TESTAPP_BIN -i $NR_ITER -w $NR_USEC_WAIT \
 163                 --sync-after-first-event "${file_sync_after_first}" \
 164                 --sync-before-last-event "${file_sync_before_last}" > /dev/null 2>&1 &
 165
 166         start_lttng_tracing_ok $SESSION_NAME
 167
 168         touch "${file_sync_before_last}"
 169
 170         # Wait for the applications started in background
 171         wait
 172         stop_lttng_tracing_ok $SESSION_NAME
 173         validate_trace_date $DATE1 $TRACE_PATH/$HOSTNAME/$SESSION_NAME*
 174
 175         start_lttng_tracing_ok $SESSION_NAME
 176         date "+%Y-%m-%d %H:%M" -s "$DATE2 $HOUR" >/dev/null
 177
 178         regenerate_metadata_ok $SESSION_NAME
 179
 180         stop_lttng_tracing_ok $SESSION_NAME
 181         destroy_lttng_session_ok $SESSION_NAME
 182         # Validate test
 183         validate_trace_date $DATE2 $TRACE_PATH/$HOSTNAME/$SESSION_NAME*
 184         if [ $? -eq 0 ]; then
 185                 # Only delete if successful
 186                 rm -rf "$TRACE_PATH"
 187         fi
 188         rm -f "${file_sync_after_first}"
 189         rm -f "${file_sync_before_last}"
 190 }
 191
 192 if ! destructive_tests_enabled ; then
 193         echo 'Please make sure that ntp is not running while executing this test'
 194         skip 0 "You need to set the LTTNG_ENABLE_DESTRUCTIVE_TESTS environment variable to \"will-break-my-system\" to run this test" $NUM_TESTS
 195
 196         exit 0
 197 fi
 198
 199 check_skip_kernel_test $NUM_TESTS "Skipping all tests." ||
 200 {
 201         original_date=$(date)
 202         start_lttng_relayd "-o $TRACE_PATH"
 203         start_lttng_sessiond
 204
 205         modprobe lttng-test
 206         test_kernel_local
 207         test_kernel_streaming
 208         modprobe --remove lttng-test
 209
 210         test_ust_local
 211         test_ust_streaming
 212
 213         stop_lttng_sessiond
 214         stop_lttng_relayd
 215
 216         # This set of test sets the date in the past which causes
 217         # `make` to panic when it sees files created in the "future"
 218         # while running the "check" target. Obviously this doesn't set
 219         # the correct date, but at least its close enough to allow the
 220         # test suite to continue.
 221         date --set "$original_date"
 222 }