tests/regression/tools/rotation/test_kernel

   1 #!/bin/bash
   2 #
   3 # Copyright (C) - 2017 Julien Desfossez <jdesfossez@efficios.com>
   4 #
   5 # This library is free software; you can redistribute it and/or modify it under
   6 # the terms of the GNU Lesser General Public License as published by the Free
   7 # Software Foundation; version 2.1 of the License.
   8 #
   9 # This library is distributed in the hope that it will be useful, but WITHOUT
  10 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  11 # FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
  12 # details.
  13 #
  14 # You should have received a copy of the GNU Lesser General Public License
  15 # along with this library; if not, write to the Free Software Foundation, Inc.,
  16 # 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
  17 TEST_DESC="Rotation - Kernel tracing"
  18
  19 CURDIR=$(dirname $0)/
  20 TESTDIR=$CURDIR/../../..
  21 EVENT_NAME="lttng_test_filter_event"
  22 PID_RELAYD=0
  23 SESSION_NAME=""
  24
  25 TRACE_PATH=$(mktemp -d)
  26
  27 NUM_TESTS=68
  28
  29 source $TESTDIR/utils/utils.sh
  30 source $CURDIR/rotate_utils.sh
  31
  32 # LTTng kernel modules check
  33 out=`ls /lib/modules/$(uname -r)/extra | grep lttng`
  34 if [ -z "$out" ]; then
  35         BAIL_OUT "LTTng modules not detected."
  36 fi
  37
  38 function lttng_create_session_uri
  39 {
  40         # Create session with default path
  41         $TESTDIR/../src/bin/lttng/$LTTNG_BIN create $SESSION_NAME -U net://localhost >/dev/null 2>&1
  42
  43         ok $? "Create session $SESSION_NAME"
  44 }
  45
  46 function rotate_kernel_test ()
  47 {
  48         local_path=$1
  49
  50         lttng_enable_kernel_event $SESSION_NAME $EVENT_NAME
  51         start_lttng_tracing_ok $SESSION_NAME
  52
  53         today=$(date +%Y%m%d)
  54         # First chunk contains 10 events.
  55         echo -n "10" > /proc/lttng-test-filter-event
  56         rotate_session_ok $SESSION_NAME
  57
  58         # Second chunk contains 20 events.
  59         echo -n "20" > /proc/lttng-test-filter-event
  60         stop_lttng_tracing_ok $SESSION_NAME
  61
  62         # Third chunk contains no event (rotate after stop).
  63         rotate_session_ok $SESSION_NAME
  64
  65         destroy_lttng_session_ok $SESSION_NAME
  66
  67         # The tests on the chunk folder rely on the date staying the same during
  68         # the duration of the test, if this fail we will now why the other checks
  69         # fail afterwards. There is a short window of time where an automated test
  70         # could fail because of that.
  71         now=$(date +%Y%m%d)
  72         test $today = $now
  73         ok $? "Date did not change during the test"
  74
  75         validate_test_chunks $local_path $today kernel kernel 0
  76 }
  77
  78 function test_kernel_streaming ()
  79 {
  80         diag "Test kernel streaming with session rotation"
  81         lttng_create_session_uri
  82         rotate_kernel_test "${TRACE_PATH}/${HOSTNAME}/${SESSION_NAME}*"
  83         rm -rf ${TRACE_PATH}/${HOSTNAME}
  84 }
  85
  86 function test_kernel_local ()
  87 {
  88         diag "Test kernel local with session rotation"
  89         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
  90
  91         rotate_kernel_test "${TRACE_PATH}"
  92 }
  93
  94 function test_kernel_local_timer ()
  95 {
  96         diag "Test kernel local with session rotation timer"
  97         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
  98         lttng_enable_kernel_event $SESSION_NAME $EVENT_NAME
  99         lttng_enable_rotation_timer_ok $SESSION_NAME 500ms
 100         start_lttng_tracing_ok $SESSION_NAME
 101
 102         rotate_timer_test "${TRACE_PATH}" 0
 103 }
 104
 105 function test_kernel_streaming_timer ()
 106 {
 107         diag "Test kernel remote with session rotation timer"
 108         lttng_create_session_uri
 109         lttng_enable_kernel_event $SESSION_NAME $EVENT_NAME
 110         lttng_enable_rotation_timer_ok $SESSION_NAME 500ms
 111         start_lttng_tracing_ok $SESSION_NAME
 112
 113         rotate_timer_test "${TRACE_PATH}/${HOSTNAME}/${SESSION_NAME}*" 0
 114         rm -rf ${TRACE_PATH}/${HOSTNAME}
 115 }
 116
 117 plan_tests $NUM_TESTS
 118
 119 print_test_banner "$TEST_DESC"
 120
 121 if [ "$(id -u)" == "0" ]; then
 122         isroot=1
 123 else
 124         isroot=0
 125 fi
 126
 127 skip $isroot "Root access is needed. Skipping all kernel streaming tests." $NUM_TESTS ||
 128 {
 129         start_lttng_relayd "-o $TRACE_PATH"
 130         start_lttng_sessiond
 131         modprobe lttng-test
 132
 133         tests=( test_kernel_streaming test_kernel_local test_kernel_local_timer test_kernel_streaming_timer)
 134
 135         for fct_test in ${tests[@]};
 136         do
 137                 SESSION_NAME=$(randstring 16 0)
 138                 ${fct_test}
 139         done
 140
 141         rmmod lttng-test
 142         stop_lttng_sessiond
 143         stop_lttng_relayd
 144 }