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=$(mktemp -d)
  22
  23 TESTAPP_PATH="$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 function validate_trace_date
  42 {
  43         local test_date=$1
  44         local trace_path=$2
  45
  46         which $BABELTRACE_BIN >/dev/null
  47         if [ $? -ne 0 ]; then
  48             skip 0 "Babeltrace binary not found. Skipping trace validation"
  49         fi
  50
  51         res=$($BABELTRACE_BIN --clock-date $trace_path 2>/dev/null | head -1 | grep $test_date)
  52         if [ $? -eq 0 ]; then
  53                 pass "Validate trace at date $test_date"
  54                 ret=0
  55         else
  56                 fail "The trace is not at the expected date"
  57                 ret=-1
  58         fi
  59
  60         return $ret
  61 }
  62
  63 function test_kernel_local ()
  64 {
  65         diag "Test kernel local with metadata regeneration"
  66         date "+%Y-%m-%d %H:%M" -s "$DATE1 $HOUR" >/dev/null
  67         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
  68         lttng_enable_kernel_event $SESSION_NAME $KERNEL_EVENT_NAME
  69         start_lttng_tracing_ok $SESSION_NAME
  70         echo -n "100" > /proc/lttng-test-filter-event
  71         stop_lttng_tracing_ok $SESSION_NAME
  72         validate_trace_date $DATE1 $TRACE_PATH
  73         start_lttng_tracing_ok $SESSION_NAME
  74         date "+%Y-%m-%d %H:%M" -s "$DATE2 $HOUR" >/dev/null
  75         regenerate_metadata_ok $SESSION_NAME
  76         stop_lttng_tracing_ok $SESSION_NAME
  77         validate_trace_date $DATE2 $TRACE_PATH
  78         if [ $? -eq 0 ]; then
  79                 # Only delete if successful
  80                 rm -rf $TRACE_PATH
  81         fi
  82         destroy_lttng_session_ok $SESSION_NAME
  83 }
  84
  85 function test_kernel_streaming ()
  86 {
  87         diag "Test kernel streaming with metadata regeneration"
  88         date "+%Y-%m-%d %H:%M" -s "$DATE1 $HOUR" >/dev/null
  89         create_lttng_session_uri $SESSION_NAME net://localhost
  90         lttng_enable_kernel_event $SESSION_NAME $KERNEL_EVENT_NAME
  91         start_lttng_tracing_ok $SESSION_NAME
  92         echo -n "100" > /proc/lttng-test-filter-event
  93         stop_lttng_tracing_ok $SESSION_NAME
  94         validate_trace_date $DATE1 $TRACE_PATH/$HOSTNAME/$SESSION_NAME*
  95         start_lttng_tracing_ok $SESSION_NAME
  96         date "+%Y-%m-%d %H:%M" -s "$DATE2 $HOUR" >/dev/null
  97         regenerate_metadata_ok $SESSION_NAME
  98         stop_lttng_tracing_ok $SESSION_NAME
  99         # Validate test
 100         validate_trace_date $DATE2 $TRACE_PATH/$HOSTNAME/$SESSION_NAME*
 101         if [ $? -eq 0 ]; then
 102                 # Only delete if successful
 103                 rm -rf $TRACE_PATH
 104         else
 105                 break
 106         fi
 107         destroy_lttng_session_ok $SESSION_NAME
 108 }
 109
 110 function test_ust_local ()
 111 {
 112         local file_sync_after_first=$(mktemp -u)
 113         local file_sync_before_last=$(mktemp -u)
 114
 115         diag "Test UST local with metadata regeneration"
 116         date "+%Y-%m-%d %H:%M" -s "$DATE1 $HOUR" >/dev/null
 117         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
 118         enable_ust_lttng_event_ok $SESSION_NAME $UST_EVENT_NAME
 119
 120         $TESTAPP_BIN -i $NR_ITER -w $NR_USEC_WAIT \
 121                 --sync-after-first-event ${file_sync_after_first} \
 122                 --sync-before-last-event ${file_sync_before_last} > /dev/null 2>&1 &
 123
 124         start_lttng_tracing_ok $SESSION_NAME
 125
 126         touch ${file_sync_before_last}
 127         # Wait for the applications started in background
 128         wait
 129
 130         stop_lttng_tracing_ok $SESSION_NAME
 131         validate_trace_date $DATE1 $TRACE_PATH
 132
 133         start_lttng_tracing_ok $SESSION_NAME
 134         date "+%Y-%m-%d %H:%M" -s "$DATE2 $HOUR" >/dev/null
 135         regenerate_metadata_ok $SESSION_NAME
 136
 137         stop_lttng_tracing_ok $SESSION_NAME
 138         destroy_lttng_session_ok $SESSION_NAME
 139         validate_trace_date $DATE2 $TRACE_PATH
 140         if [ $? -eq 0 ]; then
 141                 # Only delete if successful
 142                 rm -rf $TRACE_PATH
 143         fi
 144         rm -f ${file_sync_after_first}
 145         rm -f ${file_sync_before_last}
 146 }
 147
 148 function test_ust_streaming ()
 149 {
 150         local file_sync_after_first=$(mktemp -u)
 151         local file_sync_before_last=$(mktemp -u)
 152
 153         diag "Test UST streaming with metadata regeneration"
 154         date "+%Y-%m-%d %H:%M" -s "$DATE1 $HOUR" >/dev/null
 155         create_lttng_session_uri $SESSION_NAME net://localhost
 156         enable_ust_lttng_event_ok $SESSION_NAME $UST_EVENT_NAME
 157
 158         $TESTAPP_BIN -i $NR_ITER -w $NR_USEC_WAIT \
 159                 --sync-after-first-event ${file_sync_after_first} \
 160                 --sync-before-last-event ${file_sync_before_last} > /dev/null 2>&1 &
 161
 162         start_lttng_tracing_ok $SESSION_NAME
 163
 164         touch ${file_sync_before_last}
 165
 166         # Wait for the applications started in background
 167         wait
 168         stop_lttng_tracing_ok $SESSION_NAME
 169         validate_trace_date $DATE1 $TRACE_PATH/$HOSTNAME/$SESSION_NAME*
 170
 171         start_lttng_tracing_ok $SESSION_NAME
 172         date "+%Y-%m-%d %H:%M" -s "$DATE2 $HOUR" >/dev/null
 173
 174         regenerate_metadata_ok $SESSION_NAME
 175
 176         stop_lttng_tracing_ok $SESSION_NAME
 177         destroy_lttng_session_ok $SESSION_NAME
 178         # Validate test
 179         validate_trace_date $DATE2 $TRACE_PATH/$HOSTNAME/$SESSION_NAME*
 180         if [ $? -eq 0 ]; then
 181                 # Only delete if successful
 182                 rm -rf $TRACE_PATH
 183         fi
 184         rm -f ${file_sync_after_first}
 185         rm -f ${file_sync_before_last}
 186 }
 187
 188 if [ "$(id -u)" == "0" ]; then
 189         isroot=1
 190 else
 191         isroot=0
 192 fi
 193
 194 if ! destructive_tests_enabled ; then
 195         echo 'You need to set the LTTNG_ENABLE_DESTRUCTIVE_TESTS to "will-break-my-system" as argument to run this test'
 196         echo 'Moreover, please make sure that ntp is not running while executing this test'
 197         exit 0
 198 fi
 199
 200 skip $isroot "Root access is needed. Skipping all tests." $NUM_TESTS ||
 201 {
 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 }