tests/regression/tools/rotation/rotate_utils.sh

   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
  18 # Clean everything under directory but keep directory
  19 function clean_path ()
  20 {
  21         local path=$1
  22         # Use -u from bash top prevent empty expansion of variable yielding a
  23         # list of current directory from find.
  24         set -u
  25         find $path -mindepth 1 -maxdepth 1 -exec rm -rf '{}' \;
  26         set +u
  27 }
  28
  29 function set_chunk_pattern ()
  30 {
  31         # Need to call this function after $today has been set.
  32
  33         # YYYYMMDDTHHMMSS[+-]HHMM-YYYYMMDDTHHMMSS[+-]HHMM
  34         export chunk_pattern="${today}T[0-9][0-9][0-9][0-9][0-9][0-9][+-][0-9][0-9][0-9][0-9]-${today}T[0-9][0-9][0-9][0-9][0-9][0-9][+-][0-9][0-9][0-9][0-9]"
  35 }
  36
  37 function validate_test_chunks ()
  38 {
  39         local_path=$1
  40         today=$2
  41         app_path=$3
  42         domain=$4
  43         per_pid=$5
  44
  45         set_chunk_pattern
  46         local path=
  47
  48         # Validate that only 3 chunks are present
  49         nb_chunk=$(ls -A $local_path | wc -l)
  50         test $nb_chunk -eq 3
  51         ok $? "${local_path} contains 3 chunks only"
  52
  53         # Check if the first and second chunk folders exist and they contain a ${app_path}/metadata file.
  54         for chunk in $(seq 1 2); do
  55                 path=$(ls $local_path/${chunk_pattern}-${chunk}/${app_path}/metadata)
  56                 ok $? "Chunk ${chunk} exists based on path $path"
  57         done
  58
  59         # In per-pid the last chunk (3) must be empty.
  60         if [ "${per_pid}" -eq "1" ]; then
  61                 test -z "$(ls -A $local_path/${chunk_pattern}-3/${domain})"
  62                 ok $? "Chunk 3 is empty per-pid mode"
  63         else
  64                 path=$(ls $local_path/${chunk_pattern}-3/${app_path}/metadata)
  65                 ok $? "Chunk 3 exists based on path $path"
  66         fi
  67
  68         # Make sure we don't have anything else in the first 2 chunk directories
  69         # besides the kernel folder.
  70         nr_stale=$(\ls $local_path/${chunk_pattern}-1 | grep -v $domain | wc -l)
  71         ok $nr_stale "No stale folders in chunk 1 directory"
  72         nr_stale=$(\ls $local_path/${chunk_pattern}-2 | grep -v $domain | wc -l)
  73         ok $nr_stale "No stale folders in chunk 2 directory"
  74
  75         # We expect a complete session of 30 events
  76         validate_trace_count $EVENT_NAME $local_path 30
  77
  78         # Chunk 1: 10 events
  79         validate_trace_count $EVENT_NAME $local_path/${chunk_pattern}-1 10
  80
  81         # Chunk 2: 20 events
  82         validate_trace_count $EVENT_NAME $local_path/${chunk_pattern}-2 20
  83
  84         # Chunk 3: 0 event
  85         # Trace for chunk number 3 can only be read in per-uid mode since in
  86         # per-pid mode it is empty (no metadata or stream files).
  87         if test $per_pid = 0; then
  88                 validate_trace_empty $local_path/${chunk_pattern}-3
  89         fi
  90 }
  91
  92 function rotate_timer_test ()
  93 {
  94         local_path=$1
  95         per_pid=$2
  96
  97         today=$(date +%Y%m%d)
  98         nr=0
  99         nr_iter=0
 100         expected_chunks=3
 101
 102         # Wait for $expected_chunks to be generated, timeout after
 103         # 3 * $expected_chunks * 0.5s.
 104         # On a laptop with an empty session, a local rotation takes about 200ms,
 105         # and a remote rotation takes about 600ms.
 106         # We currently set the timeout to 6 seconds for 3 rotations, if we get
 107         # errors, we can bump this value.
 108
 109         until [ $nr -ge $expected_chunks ] || [ $nr_iter -ge $(($expected_chunks * 2 )) ]; do
 110                 nr=$(ls $local_path | wc -l)
 111                 nr_iter=$(($nr_iter+1))
 112                 sleep 1
 113         done
 114         test $nr -ge $expected_chunks
 115         ok $? "Generated $nr chunks in $(($nr_iter))s"
 116         stop_lttng_tracing_ok $SESSION_NAME
 117         destroy_lttng_session_ok $SESSION_NAME
 118
 119         now=$(date +%Y%m%d)
 120         test $today = $now
 121         ok $? "Date did not change during the test"
 122
 123         # Make sure the 10 first chunks are valid empty traces
 124         i=1
 125         set_chunk_pattern
 126
 127         # In a per-pid setup, only the first chunk is a valid trace, the other
 128         # chunks should be empty folders
 129         if test $per_pid = 1; then
 130                 validate_trace_empty $local_path/${chunk_pattern}-1
 131                 nr=$(ls $local_path/${chunk_pattern}-2/ust | wc -l)
 132                 test $nr = 0
 133                 ok $? "Chunk 2 is empty"
 134                 nr=$(ls $local_path/${chunk_pattern}-3/ust | wc -l)
 135                 test $nr = 0
 136                 ok $? "Chunk 3 is empty"
 137         else
 138                 while [ $i -le $expected_chunks ]; do
 139                         validate_trace_empty $local_path/${chunk_pattern}-$i
 140                         i=$(($i+1))
 141                 done
 142         fi
 143 }