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#!/bin/bash
#
# SPDX-FileCopyrightText: 2017 Julien Desfossez <jdesfossez@efficios.com>
#
# SPDX-License-Identifier: LGPL-2.1-only
TEST_DESC="Rotation - User space tracing"
CURDIR=$(dirname $0)/
TESTDIR=$CURDIR/../../..
NR_USEC_WAIT=0
TESTAPP_PATH="$TESTDIR/utils/testapp"
TESTAPP_NAME="gen-ust-events"
TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME"
SESSION_NAME="stream"
EVENT_NAME="tp:tptest"
TRACE_PATH=$(mktemp -d -t tmp.test_ust_rotation_trace_path.XXXXXX)
NUM_TESTS=152
source $TESTDIR/utils/utils.sh
source $CURDIR/rotate_utils.sh
if [ ! -x "$TESTAPP_BIN" ]; then
BAIL_OUT "No UST events binary detected."
fi
XPATH_CMD_OUTPUT="//lttng:command/lttng:output"
XPATH_PID="$XPATH_CMD_OUTPUT/lttng:domains/lttng:domain[./lttng:type = 'UST']/lttng:pids/lttng:pid/lttng:id"
function enable_channel_per_pid ()
{
sess_name=$1
channel_name=$2
enable_ust_lttng_channel_ok $sess_name $channel_name --buffer-ownership=process
}
# MUST set TESTDIR before calling those functions
function rotate_ust_test ()
{
local_path=$1
app_path=$2
per_pid=$3
start_lttng_tracing_ok $SESSION_NAME
today=$(date +%Y%m%d)
$TESTAPP_BIN -i 10 -w $NR_USEC_WAIT > /dev/null 2>&1
rotate_session_ok $SESSION_NAME
$TESTAPP_BIN -i 20 -w $NR_USEC_WAIT > /dev/null 2>&1
stop_lttng_tracing_ok $SESSION_NAME
# Third chunk contains no event (rotate after stop).
rotate_session_ok $SESSION_NAME
destroy_lttng_session_ok $SESSION_NAME
validate_test_chunks "${local_path}" $today $app_path ust
}
function test_ust_streaming_uid ()
{
diag "Test UST streaming with session rotation per UID"
create_lttng_session_uri $SESSION_NAME net://localhost
enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME
rotate_ust_test "${TRACE_PATH}/${HOSTNAME}/${SESSION_NAME}*/archives" "ust/uid/*/*/" 0
}
function test_ust_local_uid ()
{
diag "Test UST local with session rotation per UID"
create_lttng_session_ok $SESSION_NAME $TRACE_PATH
enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME
rotate_ust_test "${TRACE_PATH}/archives" "ust/uid/*/*/" 0
}
function test_ust_streaming_pid ()
{
diag "Test UST streaming with session rotation per PID"
create_lttng_session_uri $SESSION_NAME net://localhost
enable_channel_per_pid $SESSION_NAME "channel0"
enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME "channel0"
rotate_ust_test "${TRACE_PATH}/${HOSTNAME}/${SESSION_NAME}*/archives" "ust/pid/*/" 1
}
function test_ust_local_pid ()
{
diag "Test UST local with session rotation per PID"
create_lttng_session_ok $SESSION_NAME $TRACE_PATH
enable_channel_per_pid $SESSION_NAME "channel0"
enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME "channel0"
rotate_ust_test "${TRACE_PATH}/archives" "ust/pid/*/" 1
}
function wait_until_app_unregistration ()
{
local pid=$1
local mi_output
local value=1
mi_output=$(mktemp)
while [ $value -ne 0 ]; do
# Extract from lttng list tracepoint the registered apps.
# This should give us enough guarantee since that if the app is not
# present it is unregistered from lttng-sessiond point of view.
LTTNG_BIN="lttng --mi xml" OUTPUT_DEST="$mi_output" list_lttng_notap -u
if ! $MI_VALIDATE "$mi_output"; then
return 1
fi
value=$("$MI_VALIDATE" "$mi_output" "$XPATH_PID" | wc -l)
if [ $value -ne 0 ]; then
diag "At least one app is still registred from lttng-sessiond point of view"
sleep 1
else
# No app present on listing.
break;
fi
done
return 0
}
function test_ust_local_timer_uid ()
{
diag "Test ust local with session rotation timer per-uid"
create_lttng_session_ok $SESSION_NAME $TRACE_PATH
enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME
lttng_enable_rotation_timer_ok $SESSION_NAME 500ms
start_lttng_tracing_ok $SESSION_NAME
# We just want the app to register, no event generated
$TESTAPP_BIN -i 0 -w 0 > /dev/null 2>&1
rotate_timer_test "${TRACE_PATH}/archives" 0
}
function test_ust_streaming_timer_uid ()
{
diag "Test ust remote with session rotation timer per-uid"
create_lttng_session_uri $SESSION_NAME net://localhost
enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME
lttng_enable_rotation_timer_ok $SESSION_NAME 500ms
start_lttng_tracing_ok $SESSION_NAME
# We just want the app to register, no event generated
$TESTAPP_BIN -i 0 -w 0 > /dev/null 2>&1
rotate_timer_test "${TRACE_PATH}/${HOSTNAME}/${SESSION_NAME}*/archives" 0
}
function test_ust_local_timer_pid ()
{
local app_pid
diag "Test ust local with session rotation timer per-pid"
create_lttng_session_ok $SESSION_NAME $TRACE_PATH
enable_channel_per_pid $SESSION_NAME "channel0"
enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME "channel0"
start_lttng_tracing_ok $SESSION_NAME
# We just want the app to register, no event generated.
# But we want the pid for the app since we need to validate its
# unregistration on lttng listing.
$TESTAPP_BIN -i 0 -w 0 > /dev/null 2>&1 &
app_pid=$!
wait $app_pid
wait_until_app_unregistration $app_pid
ok $? "App is un-registered"
# Set the rotation after that the app is done and that it was
# unregistered from lttng-sessiond.
# This is necessary since the rotate_timer_test function expects the
# second rotation archive to be empty. On slow machine it can take more
# than 500ms for the lttng-sessiond to receive and handle an app
# termination. This can lead to situation where the second rotation
# archive still have the channels for the pid for the app since that
# from the point of view of the lttng-sessiond/consumer the app is still
# "alive" and "kicking". This is a problem only for per-pid testing.
lttng_enable_rotation_timer_ok $SESSION_NAME 500ms
rotate_timer_test "${TRACE_PATH}/archives" 1
}
function test_ust_streaming_timer_pid ()
{
diag "Test ust remote with session rotation timer per-pid"
create_lttng_session_uri $SESSION_NAME net://localhost
enable_channel_per_pid $SESSION_NAME "channel0"
enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME "channel0"
start_lttng_tracing_ok $SESSION_NAME
# We just want the app to register, no event generated.
# But we want the pid for the app since we need to validate its
# unregistration on lttng listing.
$TESTAPP_BIN -i 0 -w 0 > /dev/null 2>&1 &
app_pid=$!
wait $app_pid
wait_until_app_unregistration $app_pid
ok $? "App is un-registered"
# Set the rotation after that the app is done and that it was
# unregistered from lttng-sessiond.
# This is necessary since the rotate_timer_test function expects the
# second rotation archive to be empty. On slow machine it can take more
# than 500ms for the lttng-sessiond to receive and handle an app
# termination. This can lead to situation where the second rotation
# archive still have the channels for the pid for the app since that
# from the point of view of the lttng-sessiond/consumer the app is still
# "alive" and "kicking". This is a problem only for per-pid testing.
lttng_enable_rotation_timer_ok $SESSION_NAME 500ms
rotate_timer_test "${TRACE_PATH}/${HOSTNAME}/${SESSION_NAME}*/archives" 1
}
function test_incompatible_sessions ()
{
diag "Check incompatible session types with rotation"
diag "Live session with rotate timer"
# Should not be able to enable a rotation timer with a live session
create_lttng_session_uri $SESSION_NAME net://localhost --live
lttng_enable_rotation_timer_fail $SESSION_NAME 500ms
destroy_lttng_session_ok $SESSION_NAME
diag "Snapshot session with rotate timer"
# Should not be able to enable a rotation timer with a snapshot session
create_lttng_session_ok $SESSION_NAME $TRACE_PATH --snapshot
lttng_enable_rotation_timer_fail $SESSION_NAME 500ms
destroy_lttng_session_ok $SESSION_NAME
diag "Live session with rotate"
# Should not be able to rotate a live session
create_lttng_session_uri $SESSION_NAME net://localhost --live
enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME
start_lttng_tracing_ok $SESSION_NAME
rotate_session_fail $SESSION_NAME
destroy_lttng_session_ok $SESSION_NAME
diag "Snapshot session with rotate"
# Should not be able to rotate a snapshot session
create_lttng_session_ok $SESSION_NAME $TRACE_PATH --snapshot
enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME
start_lttng_tracing_ok $SESSION_NAME
rotate_session_fail $SESSION_NAME
destroy_lttng_session_ok $SESSION_NAME
}
function produce_n_events ()
{
local event_count=$1
$TESTAPP_BIN -i "$event_count" -w 0 > /dev/null 2>&1
}
function test_ust_local_size_uid ()
{
diag "Rotate uid local session every 2MiB"
local size_threshold=$((2 * 1024 * 1024))
diag "Test ust local with size-based session rotation per-uid"
create_lttng_session_ok $SESSION_NAME $TRACE_PATH
enable_ust_lttng_channel_ok $SESSION_NAME "channel0" --buffer-ownership=user
enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME "channel0"
lttng_enable_rotation_size_ok $SESSION_NAME $size_threshold
start_lttng_tracing_ok $SESSION_NAME
# Cutoff at 100 times the expected size
trace_until_n_archives produce_n_events "$TRACE_PATH" 5 $((5 * 100 * size_threshold))
destroy_lttng_session_ok $SESSION_NAME
}
function test_ust_local_size_pid ()
{
diag "Rotate uid local session every 2MiB"
local size_threshold=$((2 * 1024 * 1024))
diag "Test ust local with size-based session rotation per-pid"
create_lttng_session_ok $SESSION_NAME $TRACE_PATH
enable_ust_lttng_channel_ok $SESSION_NAME "channel0" --buffer-ownership=process
enable_ust_lttng_event_ok $SESSION_NAME $EVENT_NAME "channel0"
lttng_enable_rotation_size_ok $SESSION_NAME $size_threshold
start_lttng_tracing_ok $SESSION_NAME
# Cutoff at 100 times the expected size
trace_until_n_archives produce_n_events "$TRACE_PATH" 3 $((3 * 100 * size_threshold))
destroy_lttng_session_ok $SESSION_NAME
}
plan_tests $NUM_TESTS
print_test_banner "$TEST_DESC"
bail_out_if_no_babeltrace
start_lttng_relayd "-o $TRACE_PATH"
start_lttng_sessiond
tests=( test_ust_streaming_uid test_ust_local_uid \
test_ust_streaming_pid test_ust_local_pid \
test_ust_local_timer_uid test_ust_streaming_timer_uid \
test_ust_local_timer_pid test_ust_streaming_timer_pid \
test_ust_local_size_uid test_ust_local_size_pid \
test_incompatible_sessions )
for fct_test in ${tests[@]};
do
SESSION_NAME=$(randstring 16 0)
${fct_test}
clean_path $TRACE_PATH
done
stop_lttng_sessiond
stop_lttng_relayd
# Remove tmp dir
rm -rf $TRACE_PATH
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