tests/tools/health/health_thread_stall

   1 #!/bin/bash
   2 #
   3 # Copyright (C) - 2012 Christian Babeux <christian.babeux@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 TEST_DESC="Health check - Thread stall"
  19
  20 CURDIR=$(dirname $0)/
  21 TESTDIR=$CURDIR/../..
  22 LTTNG_BIN="lttng"
  23 SESSION_NAME="health_thread_stall"
  24 EVENT_NAME="bogus"
  25 HEALTH_CHECK_BIN="health_check"
  26 SESSIOND_PRELOAD=".libs/libhealthstall.so"
  27
  28 source $TESTDIR/utils.sh
  29
  30 print_test_banner "$TEST_DESC"
  31
  32 if [ ! -f "$CURDIR/$SESSIOND_PRELOAD" ]; then
  33         echo -e "libhealthstall.so not available for this test. Skipping."
  34         exit 0
  35 fi
  36
  37 function test_thread_stall
  38 {
  39         test_thread_stall_name="$1"
  40         test_thread_exit_code="$2"
  41
  42         echo ""
  43         echo -e "=== Testing health failure with ${test_thread_stall_name}"
  44
  45         # Activate testpoints
  46         export LTTNG_TESTPOINT_ENABLE=1
  47
  48         # Activate specific thread exit
  49         export ${test_thread_stall_name}_STALL=1
  50
  51         # Spawn sessiond with preload healthexit lib
  52         export LD_PRELOAD="$CURDIR/$SESSIOND_PRELOAD"
  53         start_lttng_sessiond
  54
  55         # Cleanup some env. var.
  56         unset LD_PRELOAD
  57         unset ${test_thread_stall_name}_STALL
  58
  59         # Check initial health status
  60         $CURDIR/$HEALTH_CHECK_BIN &> /dev/null
  61
  62         echo -n "Validating that ${test_thread_stall_name} is stalled... "
  63
  64         # Wait
  65         sleep 25
  66
  67         # Check health status, exit code should indicate failure
  68         $CURDIR/$HEALTH_CHECK_BIN &> /dev/null
  69
  70         health_check_exit_code=$?
  71
  72         if [ $health_check_exit_code -eq $test_thread_exit_code ]; then
  73                 print_ok
  74         else
  75                 print_fail
  76                 echo -e "Health returned: $health_check_exit_code\n"
  77
  78                 stop_lttng_sessiond
  79                 return 1
  80         fi
  81
  82         echo -n "Validating that ${test_thread_stall_name} is no longer stalled... "
  83
  84         # Wait
  85         sleep 40
  86
  87         # Check health status, exit code should now pass
  88         $CURDIR/$HEALTH_CHECK_BIN &> /dev/null
  89
  90         health_check_exit_code=$?
  91
  92         if [ $health_check_exit_code -eq 0 ]; then
  93                 print_ok
  94                 stop_lttng_sessiond
  95         else
  96                 print_fail
  97                 echo -e "Health returned: $health_check_exit_code\n"
  98                 stop_lttng_sessiond
  99                 return 1
 100         fi
 101
 102
 103 }
 104
 105 THREAD=("LTTNG_THREAD_MANAGE_CLIENTS"
 106         "LTTNG_THREAD_MANAGE_APPS"
 107 # This thread is a little bit tricky to stall,
 108 # need to send some commands and setup an app.
 109 #       "LTTNG_THREAD_REG_APPS"
 110         "LTTNG_THREAD_MANAGE_KERNEL")
 111
 112 # Exit code value to indicate specific thread failure
 113 EXIT_CODE=(1
 114            2
 115 #          4
 116            8)
 117
 118 THREAD_COUNT=${#THREAD[@]}
 119 i=0
 120 while [ "$i" -lt "$THREAD_COUNT" ]; do
 121         test_thread_stall "${THREAD[$i]}" "${EXIT_CODE[$i]}"
 122
 123         if [ $? -eq 1 ]; then
 124                 exit 1
 125         fi
 126
 127         let "i++"
 128 done