#!/bin/bash set -exu set -o pipefail trap "exit" INT TERM # The watchdog is in the separate process group, so we have to kill it separately # if the script terminates earlier. trap 'kill $(jobs -pr) ${watchdog_pid:-} ||:' EXIT stage=${stage:-} script_dir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )" # upstream/master LEFT_SERVER_PORT=9001 LEFT_SERVER_KEEPER_PORT=9181 LEFT_SERVER_KEEPER_RAFT_PORT=9234 LEFT_SERVER_INTERSERVER_PORT=9009 # patched version RIGHT_SERVER_PORT=19001 RIGHT_SERVER_KEEPER_PORT=19181 RIGHT_SERVER_KEEPER_RAFT_PORT=19234 RIGHT_SERVER_INTERSERVER_PORT=19009 # abort_conf -- abort if some options is not recognized # abort -- abort if something is not right in the env (i.e. per-cpu arenas does not work) # narenas -- set them explicitly to avoid disabling per-cpu arena in env # that returns different number of CPUs for some of the following # _SC_NPROCESSORS_ONLN/_SC_NPROCESSORS_CONF/sched_getaffinity export MALLOC_CONF="abort_conf:true,abort:true,narenas:$(nproc --all)" function wait_for_server # port, pid { for _ in {1..60} do if clickhouse-client --port "$1" --query "select 1" || ! kill -0 "$2" then break fi sleep 1 done if ! clickhouse-client --port "$1" --query "select 1" then echo "Cannot connect to ClickHouse server at $1" return 1 fi if ! kill -0 "$2" then echo "Server pid '$2' is not running" return 1 fi } function left_or_right() { local from=$1 && shift local basename=$1 && shift if [ -e "$from/$basename" ]; then echo "$from/$basename" return fi case "$from" in left) echo "right/$basename" ;; right) echo "left/$basename" ;; esac } function configure { # Use the new config for both servers, so that we can change it in a PR. rm right/config/config.d/text_log.xml ||: # backups disk uses absolute path, and this overlaps between servers, that could lead to errors rm right/config/config.d/backups.xml ||: cp -rv right/config left ||: # Start a temporary server to rename the tables while pkill -f clickhouse-serv ; do echo . ; sleep 1 ; done echo all killed set -m # Spawn temporary in its own process groups local setup_left_server_opts=( # server options --config-file=left/config/config.xml -- # server *config* directives overrides --path db0 --user_files_path db0/user_files --top_level_domains_path "$(left_or_right right top_level_domains)" --keeper_server.storage_path coordination0 --tcp_port $LEFT_SERVER_PORT ) left/clickhouse-server "${setup_left_server_opts[@]}" &> setup-server-log.log & left_pid=$! kill -0 $left_pid disown $left_pid set +m wait_for_server $LEFT_SERVER_PORT $left_pid echo "Server for setup started" clickhouse-client --port $LEFT_SERVER_PORT --query "create database test" ||: clickhouse-client --port $LEFT_SERVER_PORT --query "rename table datasets.hits_v1 to test.hits" ||: while pkill -f clickhouse-serv ; do echo . ; sleep 1 ; done echo all killed # Make copies of the original db for both servers. Use hardlinks instead # of copying to save space. Before that, remove preprocessed configs and # system tables, because sharing them between servers with hardlinks may # lead to weird effects. rm -r left/db ||: rm -r right/db ||: rm -r db0/preprocessed_configs ||: rm -r db0/{data,metadata}/system ||: rm db0/status ||: cp -al db0/ left/db/ cp -R coordination0 left/coordination cp -al db0/ right/db/ cp -R coordination0 right/coordination } function restart { while pkill -f clickhouse-serv ; do echo . ; sleep 1 ; done echo all killed set -m # Spawn servers in their own process groups local left_server_opts=( # server options --config-file=left/config/config.xml -- # server *config* directives overrides --path left/db --user_files_path left/db/user_files --top_level_domains_path "$(left_or_right left top_level_domains)" --tcp_port $LEFT_SERVER_PORT --keeper_server.tcp_port $LEFT_SERVER_KEEPER_PORT --keeper_server.raft_configuration.server.port $LEFT_SERVER_KEEPER_RAFT_PORT --keeper_server.storage_path left/coordination --zookeeper.node.port $LEFT_SERVER_KEEPER_PORT --interserver_http_port $LEFT_SERVER_INTERSERVER_PORT ) left/clickhouse-server "${left_server_opts[@]}" &>> left-server-log.log & left_pid=$! kill -0 $left_pid disown $left_pid local right_server_opts=( # server options --config-file=right/config/config.xml -- # server *config* directives overrides --path right/db --user_files_path right/db/user_files --top_level_domains_path "$(left_or_right right top_level_domains)" --tcp_port $RIGHT_SERVER_PORT --keeper_server.tcp_port $RIGHT_SERVER_KEEPER_PORT --keeper_server.raft_configuration.server.port $RIGHT_SERVER_KEEPER_RAFT_PORT --keeper_server.storage_path right/coordination --zookeeper.node.port $RIGHT_SERVER_KEEPER_PORT --interserver_http_port $RIGHT_SERVER_INTERSERVER_PORT ) right/clickhouse-server "${right_server_opts[@]}" &>> right-server-log.log & right_pid=$! kill -0 $right_pid disown $right_pid set +m wait_for_server $LEFT_SERVER_PORT $left_pid echo left ok wait_for_server $RIGHT_SERVER_PORT $right_pid echo right ok clickhouse-client --port $LEFT_SERVER_PORT --query "select * from system.tables where database NOT IN ('system', 'INFORMATION_SCHEMA', 'information_schema')" clickhouse-client --port $LEFT_SERVER_PORT --query "select * from system.build_options" clickhouse-client --port $RIGHT_SERVER_PORT --query "select * from system.tables where database NOT IN ('system', 'INFORMATION_SCHEMA', 'information_schema')" clickhouse-client --port $RIGHT_SERVER_PORT --query "select * from system.build_options" # Check again that both servers we started are running -- this is important # for running locally, when there might be some other servers started and we # will connect to them instead. kill -0 $left_pid kill -0 $right_pid } function run_tests { # Just check that the script runs at all "$script_dir/perf.py" --help > /dev/null # Find the directory with test files. if [ -v CHPC_TEST_PATH ] then # Use the explicitly set path to directory with test files. test_prefix="$CHPC_TEST_PATH" elif [ "$PR_TO_TEST" == "0" ] then # When testing commits from master, use the older test files. This # allows the tests to pass even when we add new functions and tests for # them, that are not supported in the old revision. test_prefix=left/performance else # For PRs, use newer test files so we can test these changes. test_prefix=right/performance fi run_only_changed_tests=0 # Determine which tests to run. if [ -v CHPC_TEST_GREP ] then # Run only explicitly specified tests, if any. # shellcheck disable=SC2010 test_files=($(ls "$test_prefix" | rg "$CHPC_TEST_GREP" | xargs -I{} -n1 readlink -f "$test_prefix/{}")) elif [ "$PR_TO_TEST" -ne 0 ] \ && [ "$(wc -l < changed-test-definitions.txt)" -gt 0 ] \ && [ "$(wc -l < other-changed-files.txt)" -eq 0 ] then # If only the perf tests were changed in the PR, we will run only these # tests. The lists of changed files are prepared in entrypoint.sh because # it has the repository. test_files=($(sed "s/tests\/performance/${test_prefix//\//\\/}/" changed-test-definitions.txt)) run_only_changed_tests=1 else # The default -- run all tests found in the test dir. test_files=($(ls "$test_prefix"/*.xml)) fi # We can filter out certain tests if [ -v CHPC_TEST_GREP_EXCLUDE ]; then # filter tests array in bash https://stackoverflow.com/a/40375567 filtered_test_files=( $( for i in ${test_files[@]} ; do echo $i ; done | rg -v ${CHPC_TEST_GREP_EXCLUDE} ) ) test_files=("${filtered_test_files[@]}") fi # We split perf tests into multiple checks to make them faster if [ -v CHPC_TEST_RUN_BY_HASH_TOTAL ]; then # filter tests array in bash https://stackoverflow.com/a/40375567 for index in "${!test_files[@]}"; do [ $(( index % CHPC_TEST_RUN_BY_HASH_TOTAL )) != "$CHPC_TEST_RUN_BY_HASH_NUM" ] && \ unset -v 'test_files[$index]' done # to have sequential indexes... test_files=("${test_files[@]}") fi if [ "$run_only_changed_tests" -ne 0 ]; then if [ ${#test_files[@]} -eq 0 ]; then time "$script_dir/report.py" --no-tests-run > report.html exit 0 fi fi # For PRs w/o changes in test definitions, test only a subset of queries, # and run them less times. If the corresponding environment variables are # already set, keep those values. # # NOTE: too high CHPC_RUNS/CHPC_MAX_QUERIES may hit internal CI timeout. # NOTE: Currently we disabled complete run even for master branch #if [ "$PR_TO_TEST" -ne 0 ] && [ "$(wc -l < changed-test-definitions.txt)" -eq 0 ] #then # CHPC_RUNS=${CHPC_RUNS:-7} # CHPC_MAX_QUERIES=${CHPC_MAX_QUERIES:-10} #else # CHPC_RUNS=${CHPC_RUNS:-13} # CHPC_MAX_QUERIES=${CHPC_MAX_QUERIES:-0} #fi CHPC_RUNS=${CHPC_RUNS:-7} CHPC_MAX_QUERIES=${CHPC_MAX_QUERIES:-10} export CHPC_RUNS export CHPC_MAX_QUERIES # Determine which concurrent benchmarks to run. For now, the only test # we run as a concurrent benchmark is 'website'. Run it as benchmark if we # are also going to run it as a normal test. for test in ${test_files[@]}; do echo "$test"; done | sed -n '/website/p' > benchmarks-to-run.txt # Delete old report files. for x in {test-times,wall-clock-times}.tsv do rm -v "$x" ||: touch "$x" done # Randomize test order. BTW, it's not an array no more. test_files=$(for f in ${test_files[@]}; do echo "$f"; done | sort -R) # Limit profiling time to 10 minutes, not to run for too long. profile_seconds_left=600 # Run the tests. total_tests=$(echo "$test_files" | wc -w) current_test=0 test_name="" for test in $test_files do echo "$current_test of $total_tests tests complete" > status.txt # Check that both servers are alive, and restart them if they die. clickhouse-client --port $LEFT_SERVER_PORT --query "select 1 format Null" \ || { echo $test_name >> left-server-died.log ; restart ; } clickhouse-client --port $RIGHT_SERVER_PORT --query "select 1 format Null" \ || { echo $test_name >> right-server-died.log ; restart ; } test_name=$(basename "$test" ".xml") echo test "$test_name" # Don't profile if we're past the time limit. # Use awk because bash doesn't support floating point arithmetic. profile_seconds=$(awk "BEGIN { print ($profile_seconds_left > 0 ? 10 : 0) }") if rg --quiet "$(basename $test)" changed-test-definitions.txt then # Run all queries from changed test files to ensure that all new queries will be tested. max_queries=0 else max_queries=$CHPC_MAX_QUERIES fi ( set +x argv=( --host localhost localhost --port "$LEFT_SERVER_PORT" "$RIGHT_SERVER_PORT" --runs "$CHPC_RUNS" --max-queries "$max_queries" --profile-seconds "$profile_seconds" "$test" ) TIMEFORMAT=$(printf "$test_name\t%%3R\t%%3U\t%%3S\n") # one more subshell to suppress trace output for "set +x" ( time "$script_dir/perf.py" "${argv[@]}" > "$test_name-raw.tsv" 2> "$test_name-err.log" ) 2>>wall-clock-times.tsv >/dev/null \ || echo "Test $test_name failed with error code $?" >> "$test_name-err.log" ) 2>/dev/null profile_seconds_left=$(awk -F' ' \ 'BEGIN { s = '$profile_seconds_left'; } /^profile-total/ { s -= $2 } END { print s }' \ "$test_name-raw.tsv") current_test=$((current_test + 1)) done wait } function get_profiles_watchdog { sleep 600 echo "The trace collection did not finish in time." >> profile-errors.log for pid in $(pgrep -f clickhouse) do sudo gdb -p "$pid" --batch --ex "info proc all" --ex "thread apply all bt" --ex quit &> "$pid.gdb.log" & done wait for _ in {1..10} do if ! pkill -f clickhouse then break fi sleep 1 done } function get_profiles { # Collect the profiles clickhouse-client --port $LEFT_SERVER_PORT --query "system flush logs" & clickhouse-client --port $RIGHT_SERVER_PORT --query "system flush logs" & wait clickhouse-client --port $LEFT_SERVER_PORT --query "select * from system.query_log where type in ('QueryFinish', 'ExceptionWhileProcessing') format TSVWithNamesAndTypes" > left-query-log.tsv ||: & clickhouse-client --port $LEFT_SERVER_PORT --query "select * from system.trace_log format TSVWithNamesAndTypes" > left-trace-log.tsv ||: & clickhouse-client --port $LEFT_SERVER_PORT --query "select arrayJoin(trace) addr, concat(splitByChar('/', addressToLine(addr))[-1], '#', demangle(addressToSymbol(addr)) ) name from system.trace_log group by addr format TSVWithNamesAndTypes" > left-addresses.tsv ||: & clickhouse-client --port $LEFT_SERVER_PORT --query "select * from system.metric_log format TSVWithNamesAndTypes" > left-metric-log.tsv ||: & clickhouse-client --port $LEFT_SERVER_PORT --query "select * from system.asynchronous_metric_log format TSVWithNamesAndTypes" > left-async-metric-log.tsv ||: & clickhouse-client --port $RIGHT_SERVER_PORT --query "select * from system.query_log where type in ('QueryFinish', 'ExceptionWhileProcessing') format TSVWithNamesAndTypes" > right-query-log.tsv ||: & clickhouse-client --port $RIGHT_SERVER_PORT --query "select * from system.trace_log format TSVWithNamesAndTypes" > right-trace-log.tsv ||: & clickhouse-client --port $RIGHT_SERVER_PORT --query "select arrayJoin(trace) addr, concat(splitByChar('/', addressToLine(addr))[-1], '#', demangle(addressToSymbol(addr)) ) name from system.trace_log group by addr format TSVWithNamesAndTypes" > right-addresses.tsv ||: & clickhouse-client --port $RIGHT_SERVER_PORT --query "select * from system.metric_log format TSVWithNamesAndTypes" > right-metric-log.tsv ||: & clickhouse-client --port $RIGHT_SERVER_PORT --query "select * from system.asynchronous_metric_log format TSVWithNamesAndTypes" > right-async-metric-log.tsv ||: & wait # Just check that the servers are alive so that we return a proper exit code. # We don't consistently check the return codes of the above background jobs. clickhouse-client --port $LEFT_SERVER_PORT --query "select 1" clickhouse-client --port $RIGHT_SERVER_PORT --query "select 1" } # Build and analyze randomization distribution for all queries. function analyze_queries { rm -v analyze-commands.txt analyze-errors.log all-queries.tsv unstable-queries.tsv ./*-report.tsv raw-queries.tsv ||: rm -rf analyze ||: mkdir analyze analyze/tmp ||: # Split the raw test output into files suitable for analysis. # To debug calculations only for a particular test, substitute a suitable # wildcard here, e.g. `for test_file in modulo-raw.tsv`. for test_file in *-raw.tsv do test_name=$(basename "$test_file" "-raw.tsv") sed -n "s/^query\t/$test_name\t/p" < "$test_file" >> "analyze/query-runs.tsv" sed -n "s/^profile\t/$test_name\t/p" < "$test_file" >> "analyze/query-profiles.tsv" sed -n "s/^client-time\t/$test_name\t/p" < "$test_file" >> "analyze/client-times.tsv" sed -n "s/^report-threshold\t/$test_name\t/p" < "$test_file" >> "analyze/report-thresholds.tsv" sed -n "s/^skipped\t/$test_name\t/p" < "$test_file" >> "analyze/skipped-tests.tsv" sed -n "s/^display-name\t/$test_name\t/p" < "$test_file" >> "analyze/query-display-names.tsv" sed -n "s/^partial\t/$test_name\t/p" < "$test_file" >> "analyze/partial-queries.tsv" done # for each query run, prepare array of metrics from query log clickhouse-local --query " create view query_runs as select * from file('analyze/query-runs.tsv', TSV, 'test text, query_index int, query_id text, version UInt8, time float'); -- Separately process backward-incompatible ('partial') queries which we could only run on the new server -- because they use new functions. We can't make normal stats for them, but still -- have to show some stats so that the PR author can tweak them. create view partial_queries as select test, query_index from file('analyze/partial-queries.tsv', TSV, 'test text, query_index int, servers Array(int)'); create table partial_query_times engine File(TSVWithNamesAndTypes, 'analyze/partial-query-times.tsv') as select test, query_index, stddevPop(time) time_stddev, median(time) time_median from query_runs where (test, query_index) in partial_queries group by test, query_index ; -- Process queries that were run normally, on both servers. create view left_query_log as select * from file('left-query-log.tsv', TSVWithNamesAndTypes); create view right_query_log as select * from file('right-query-log.tsv', TSVWithNamesAndTypes); create view query_logs as select 0 version, query_id, ProfileEvents, query_duration_ms, memory_usage from left_query_log union all select 1 version, query_id, ProfileEvents, query_duration_ms, memory_usage from right_query_log ; -- This is a single source of truth on all metrics we have for query runs. The -- metrics include ProfileEvents from system.query_log, and query run times -- reported by the perf.py test runner. create table query_run_metric_arrays engine File(TSV, 'analyze/query-run-metric-arrays.tsv') as with ( -- sumMapState with the list of all keys with nullable '0' values because sumMap removes keys with default values -- and 0::Nullable != NULL with (select groupUniqArrayArray(mapKeys(ProfileEvents)) from query_logs) as all_names select arrayReduce('sumMapState', [(all_names, arrayMap(x->0::Nullable(Float64), all_names))]) ) as all_metrics select test, query_index, version, query_id, (finalizeAggregation( arrayReduce('sumMapMergeState', [ all_metrics, arrayReduce('sumMapState', [(mapKeys(ProfileEvents), arrayMap(x->toNullable(toFloat64(x)), mapValues(ProfileEvents)))] ), arrayReduce('sumMapState', [( ['client_time', 'server_time', 'memory_usage'], [toNullable(toFloat64(query_runs.time)), toNullable(toFloat64(query_duration_ms / 1000.)), toNullable(toFloat64(memory_usage))] )]) ] )) as metrics_tuple).1 metric_names, arrayMap(x->if(isNaN(x),0,x), metrics_tuple.2) metric_values from query_logs right join query_runs on query_logs.query_id = query_runs.query_id and query_logs.version = query_runs.version where (test, query_index) not in partial_queries ; -- This is just for convenience -- human-readable + easy to make plots. create table query_run_metrics_denorm engine File(TSV, 'analyze/query-run-metrics-denorm.tsv') as select test, query_index, metric_names, version, query_id, metric_values from query_run_metric_arrays array join metric_names, metric_values order by test, query_index, metric_names, version, query_id ; -- Filter out tests that don't have an even number of runs, to avoid breaking -- the further calculations. This may happen if there was an error during the -- test runs, e.g. the server died. It will be reported in test errors, so we -- don't have to report it again. create view broken_queries as select test, query_index from query_runs group by test, query_index having count(*) % 2 != 0 ; -- This is for statistical processing with eqmed.sql create table query_run_metrics_for_stats engine File( TSV, -- do not add header -- will parse with grep 'analyze/query-run-metrics-for-stats.tsv') as select test, query_index, 0 run, version, -- For debugging, add a filter for a particular metric like this: -- arrayFilter(m, n -> n = 'client_time', metric_values, metric_names) -- metric_values -- Note that further reporting may break, because the metric names are -- not filtered. metric_values from query_run_metric_arrays where (test, query_index) not in broken_queries order by test, query_index, run, version ; -- This is the list of metric names, so that we can join them back after -- statistical processing. create table query_run_metric_names engine File(TSV, 'analyze/query-run-metric-names.tsv') as select metric_names from query_run_metric_arrays limit 1 ; " 2> >(tee -a analyze/errors.log 1>&2) # This is a lateral join in bash... please forgive me. # We don't have arrayPermute(), so I have to make random permutations with # `order by rand`, and it becomes really slow if I do it for more than one # query. We also don't have lateral joins. So I just put all runs of each # query into a separate file, and then compute randomization distribution # for each file. I do this in parallel using GNU parallel. ( set +x # do not bloat the log IFS=$'\n' for prefix in $(cut -f1,2 "analyze/query-run-metrics-for-stats.tsv" | sort | uniq) do file="analyze/tmp/${prefix// /_}.tsv" rg "^$prefix " "analyze/query-run-metrics-for-stats.tsv" > "$file" & printf "%s\0\n" \ "clickhouse-local \ --file \"$file\" \ --structure 'test text, query text, run int, version UInt8, metrics Array(float)' \ --query \"$(cat "$script_dir/eqmed.sql")\" \ >> \"analyze/query-metric-stats.tsv\"" \ 2>> analyze/errors.log \ >> analyze/commands.txt done wait unset IFS ) # The comparison script might be bound to one NUMA node for better test # stability, and the calculation runs out of memory because of this. Use # all nodes. numactl --show numactl --cpunodebind=all --membind=all numactl --show # Notes for parallel: # # Some queries can consume 8+ GB of memory, so it worth to limit amount of jobs # that can be run in parallel. # # --memfree: # # will kill jobs, which is not good (and retried until --retries exceeded) # # --memsuspend: # # If the available memory falls below 2 * size, GNU parallel will suspend some of the running jobs. numactl --cpunodebind=all --membind=all parallel -v --joblog analyze/parallel-log.txt --memsuspend 15G --null < analyze/commands.txt 2>> analyze/errors.log clickhouse-local --query " -- Join the metric names back to the metric statistics we've calculated, and make -- a denormalized table of them -- statistics for all metrics for all queries. -- The WITH, ARRAY JOIN and CROSS JOIN do not like each other: -- https://github.com/ClickHouse/ClickHouse/issues/11868 -- https://github.com/ClickHouse/ClickHouse/issues/11757 -- Because of this, we make a view with arrays first, and then apply all the -- array joins. create view query_metric_stat_arrays as with (select * from file('analyze/query-run-metric-names.tsv', TSV, 'n Array(String)')) as metric_name select test, query_index, metric_name, left, right, diff, stat_threshold from file('analyze/query-metric-stats.tsv', TSV, 'left Array(float), right Array(float), diff Array(float), stat_threshold Array(float), test text, query_index int') reports order by test, query_index, metric_name ; create table query_metric_stats_denorm engine File(TSVWithNamesAndTypes, 'analyze/query-metric-stats-denorm.tsv') as select test, query_index, metric_name, left, right, diff, stat_threshold from query_metric_stat_arrays left array join metric_name, left, right, diff, stat_threshold order by test, query_index, metric_name ; " 2> >(tee -a analyze/errors.log 1>&2) # Fetch historical query variability thresholds from the CI database if [ -v CLICKHOUSE_PERFORMANCE_COMPARISON_DATABASE_URL ] then set +x # Don't show password in the log client=(clickhouse-client # Surprisingly, clickhouse-client doesn't understand --host 127.0.0.1:9000 # so I have to extract host and port with clickhouse-local. I tried to use # Poco URI parser to support this in the client, but it's broken and can't # parse host:port. $(clickhouse-local --query "with '${CLICKHOUSE_PERFORMANCE_COMPARISON_DATABASE_URL}' as url select '--host ' || domain(url) || ' --port ' || toString(port(url)) format TSV") --secure --user "${CLICKHOUSE_PERFORMANCE_COMPARISON_DATABASE_USER}" --password "${CLICKHOUSE_PERFORMANCE_COMPARISON_DATABASE_USER_PASSWORD}" --config "right/config/client_config.xml" --date_time_input_format=best_effort) # Precision is going to be 1.5 times worse for PRs, because we run the queries # less times. How do I know it? I ran this: # SELECT quantilesExact(0., 0.1, 0.5, 0.75, 0.95, 1.)(p / m) # FROM # ( # SELECT # quantileIf(0.95)(stat_threshold, pr_number = 0) AS m, # quantileIf(0.95)(stat_threshold, (pr_number != 0) AND (abs(diff) < stat_threshold)) AS p # FROM query_metrics_v2 # WHERE (event_date > (today() - toIntervalMonth(1))) AND (metric = 'client_time') # GROUP BY # test, # query_index, # query_display_name # HAVING count(*) > 100 # ) # # The file can be empty if the server is inaccessible, so we can't use # TSVWithNamesAndTypes. # "${client[@]}" --query " select test, query_index, quantileExact(0.99)(abs(diff)) * 1.5 AS max_diff, quantileExactIf(0.99)(stat_threshold, abs(diff) < stat_threshold) * 1.5 AS max_stat_threshold, query_display_name from query_metrics_v2 -- We use results at least one week in the past, so that the current -- changes do not immediately influence the statistics, and we have -- some time to notice that something is wrong. where event_date between now() - interval 1 month - interval 1 week and now() - interval 1 week and metric = 'client_time' and pr_number = 0 group by test, query_index, query_display_name having count(*) > 100 " > analyze/historical-thresholds.tsv set -x else touch analyze/historical-thresholds.tsv fi } # Analyze results function report { rm -r report ||: mkdir report report/tmp ||: rm ./*.{rep,svg} test-times.tsv test-dump.tsv unstable.tsv unstable-query-ids.tsv unstable-query-metrics.tsv changed-perf.tsv unstable-tests.tsv unstable-queries.tsv bad-tests.tsv all-queries.tsv run-errors.tsv ||: cat analyze/errors.log >> report/errors.log ||: cat profile-errors.log >> report/errors.log ||: clickhouse-local --query " create view query_display_names as select * from file('analyze/query-display-names.tsv', TSV, 'test text, query_index int, query_display_name text') ; create view partial_query_times as select * from file('analyze/partial-query-times.tsv', TSVWithNamesAndTypes, 'test text, query_index int, time_stddev float, time_median double') ; -- Report for backward-incompatible ('partial') queries that we could only run on the new server (e.g. -- queries with new functions added in the tested PR). create table partial_queries_report engine File(TSV, 'report/partial-queries-report.tsv') as select round(time_median, 3) time, round(time_stddev / time_median, 3) relative_time_stddev, test, query_index, query_display_name from partial_query_times join query_display_names using (test, query_index) order by test, query_index ; create view query_metric_stats as select * from file('analyze/query-metric-stats-denorm.tsv', TSVWithNamesAndTypes, 'test text, query_index int, metric_name text, left float, right float, diff float, stat_threshold float') ; create table report_thresholds engine File(TSVWithNamesAndTypes, 'report/thresholds.tsv') as select query_display_names.test test, query_display_names.query_index query_index, ceil(greatest(0.1, historical_thresholds.max_diff, test_thresholds.report_threshold), 2) changed_threshold, ceil(greatest(0.2, historical_thresholds.max_stat_threshold, test_thresholds.report_threshold + 0.1), 2) unstable_threshold, query_display_names.query_display_name query_display_name from query_display_names left join file('analyze/historical-thresholds.tsv', TSV, 'test text, query_index int, max_diff float, max_stat_threshold float, query_display_name text') historical_thresholds on query_display_names.test = historical_thresholds.test and query_display_names.query_index = historical_thresholds.query_index and query_display_names.query_display_name = historical_thresholds.query_display_name left join file('analyze/report-thresholds.tsv', TSV, 'test text, report_threshold float') test_thresholds on query_display_names.test = test_thresholds.test ; -- Main statistics for queries -- query time as reported in query log. create table queries engine File(TSVWithNamesAndTypes, 'report/queries.tsv') as select -- It is important to have a non-strict inequality with stat_threshold -- here. The randomization distribution is actually discrete, and when -- the number of runs is small, the quantile we need (e.g. 0.99) turns -- out to be the maximum value of the distribution. We can also hit this -- maximum possible value with our test run, and this obviously means -- that we have observed the difference to the best precision possible -- for the given number of runs. If we use a strict equality here, we -- will miss such cases. This happened in the wild and lead to some -- uncaught regressions, because for the default 7 runs we do for PRs, -- the randomization distribution has only 16 values, so the max quantile -- is actually 0.9375. abs(diff) > changed_threshold and abs(diff) >= stat_threshold as changed_fail, abs(diff) > changed_threshold - 0.05 and abs(diff) >= stat_threshold as changed_show, not changed_fail and stat_threshold > unstable_threshold as unstable_fail, not changed_show and stat_threshold > unstable_threshold - 0.05 as unstable_show, left, right, diff, stat_threshold, query_metric_stats.test test, query_metric_stats.query_index query_index, query_display_names.query_display_name query_display_name from query_metric_stats left join query_display_names on query_metric_stats.test = query_display_names.test and query_metric_stats.query_index = query_display_names.query_index left join report_thresholds on query_display_names.test = report_thresholds.test and query_display_names.query_index = report_thresholds.query_index and query_display_names.query_display_name = report_thresholds.query_display_name -- 'server_time' is rounded down to ms, which might be bad for very short queries. -- Use 'client_time' instead. where metric_name = 'client_time' order by test, query_index, metric_name ; create table changed_perf_report engine File(TSV, 'report/changed-perf.tsv') as with -- server_time is sometimes reported as zero (if it's less than 1 ms), -- so we have to work around this to not get an error about conversion -- of NaN to decimal. (left > right ? left / right : right / left) as times_change_float, isFinite(times_change_float) as times_change_finite, round(times_change_finite ? times_change_float : 1., 3) as times_change_decimal, times_change_finite ? (left > right ? '-' : '+') || toString(times_change_decimal) || 'x' : '--' as times_change_str select round(left, 3), round(right, 3), times_change_str, round(diff, 3), round(stat_threshold, 3), changed_fail, test, query_index, query_display_name from queries where changed_show order by abs(diff) desc; create table unstable_queries_report engine File(TSV, 'report/unstable-queries.tsv') as select round(left, 3), round(right, 3), round(diff, 3), round(stat_threshold, 3), unstable_fail, test, query_index, query_display_name from queries where unstable_show order by stat_threshold desc; create view test_speedup as select test, exp2(avg(log2(left / right))) times_speedup, count(*) queries, unstable + changed bad, sum(changed_show) changed, sum(unstable_show) unstable from queries group by test order by times_speedup desc ; create view total_speedup as select 'Total' test, exp2(avg(log2(times_speedup))) times_speedup, sum(queries) queries, unstable + changed bad, sum(changed) changed, sum(unstable) unstable from test_speedup ; create table test_perf_changes_report engine File(TSV, 'report/test-perf-changes.tsv') as with (times_speedup >= 1 ? '-' || toString(round(times_speedup, 3)) || 'x' : '+' || toString(round(1 / times_speedup, 3)) || 'x') as times_speedup_str select test, times_speedup_str, queries, bad, changed, unstable -- Not sure what's the precedence of UNION ALL vs WHERE & ORDER BY, hence all -- the braces. from ( ( select * from total_speedup ) union all ( select * from test_speedup where (times_speedup >= 1 ? times_speedup : (1 / times_speedup)) >= 1.005 or bad ) ) order by test = 'Total' desc, times_speedup desc ; create view total_client_time_per_query as select * from file('analyze/client-times.tsv', TSV, 'test text, query_index int, client float, server float'); create table wall_clock_time_per_test engine Memory as select * from file('wall-clock-times.tsv', TSV, 'test text, real float, user float, system float'); create table test_time engine Memory as select test, sum(client) total_client_time, max(client) query_max, min(client) query_min, count(*) queries from total_client_time_per_query full join queries using (test, query_index) group by test; create view query_runs as select * from file('analyze/query-runs.tsv', TSV, 'test text, query_index int, query_id text, version UInt8, time float'); -- -- Guess the number of query runs used for this test. The number is required to -- calculate and check the average query run time in the report. -- We have to be careful, because we will encounter: -- 1) backward-incompatible ('partial') queries which run only on one server -- 3) some errors that make query run for a different number of times on a -- particular server. -- create view test_runs as select test, -- Default to 7 runs if there are only 'short' queries in the test, and -- we can't determine the number of runs. if((ceil(median(t.runs), 0) as r) != 0, r, 7) runs from ( select -- The query id is the same for both servers, so no need to divide here. uniqExact(query_id) runs, test, query_index from query_runs group by test, query_index ) t group by test ; create view test_times_view as select wall_clock_time_per_test.test test, real, total_client_time, queries, query_max, real / if(queries > 0, queries, 1) avg_real_per_query, query_min, runs from test_time -- wall clock times are also measured for skipped tests, so don't -- do full join left join wall_clock_time_per_test on wall_clock_time_per_test.test = test_time.test full join test_runs on test_runs.test = test_time.test ; -- WITH TOTALS doesn't work with INSERT SELECT, so we have to jump through these -- hoops: https://github.com/ClickHouse/ClickHouse/issues/15227 create view test_times_view_total as select 'Total' test, sum(real), sum(total_client_time), sum(queries), max(query_max), sum(real) / if(sum(queries) > 0, sum(queries), 1) avg_real_per_query, min(query_min), -- Totaling the number of runs doesn't make sense, but use the max so -- that the reporting script doesn't complain about queries being too -- long. max(runs) from test_times_view ; create table test_times_report engine File(TSV, 'report/test-times.tsv') as select test, round(real, 3), round(total_client_time, 3), queries, round(query_max, 3), round(avg_real_per_query, 3), round(query_min, 3), runs from ( select * from test_times_view union all select * from test_times_view_total ) order by test = 'Total' desc, avg_real_per_query desc ; -- report for all queries page, only main metric create table all_tests_report engine File(TSV, 'report/all-queries.tsv') as with -- server_time is sometimes reported as zero (if it's less than 1 ms), -- so we have to work around this to not get an error about conversion -- of NaN to decimal. (left > right ? left / right : right / left) as times_change_float, isFinite(times_change_float) as times_change_finite, round(times_change_finite ? times_change_float : 1., 3) as times_change_decimal, times_change_finite ? (left > right ? '-' : '+') || toString(times_change_decimal) || 'x' : '--' as times_change_str select changed_fail, unstable_fail, round(left, 3), round(right, 3), times_change_str, round(isFinite(diff) ? diff : 0, 3), round(isFinite(stat_threshold) ? stat_threshold : 0, 3), test, query_index, query_display_name from queries order by test, query_index; -------------------------------------------------------------------------------- -- various compatibility data formats follow, not related to the main report -- keep the table in old format so that we can analyze new and old data together create table queries_old_format engine File(TSVWithNamesAndTypes, 'queries.rep') as select 0 short, changed_fail, unstable_fail, left, right, diff, stat_threshold, test, query_display_name query from queries ; -- new report for all queries with all metrics (no page yet) create table all_query_metrics_tsv engine File(TSV, 'report/all-query-metrics.tsv') as select metric_name, left, right, diff, floor(left > right ? left / right : right / left, 3), stat_threshold, test, query_index, query_display_name from query_metric_stats left join query_display_names on query_metric_stats.test = query_display_names.test and query_metric_stats.query_index = query_display_names.query_index order by test, query_index; " 2> >(tee -a report/errors.log 1>&2) # Prepare source data for metrics and flamegraphs for queries that were profiled # by perf.py. for version in {right,left} do rm -rf data clickhouse-local --query " create view query_profiles as with 0 as left, 1 as right select * from file('analyze/query-profiles.tsv', TSV, 'test text, query_index int, query_id text, version UInt8, time float') where version = $version ; create view query_display_names as select * from file('analyze/query-display-names.tsv', TSV, 'test text, query_index int, query_display_name text') ; create table unstable_query_runs engine File(TSVWithNamesAndTypes, 'unstable-query-runs.$version.rep') as select query_profiles.test test, query_profiles.query_index query_index, query_display_name, query_id from query_profiles left join query_display_names on query_profiles.test = query_display_names.test and query_profiles.query_index = query_display_names.query_index ; create view query_log as select * from file('$version-query-log.tsv', TSVWithNamesAndTypes); create table unstable_run_metrics engine File(TSVWithNamesAndTypes, 'unstable-run-metrics.$version.rep') as select test, query_index, query_id, value, metric from query_log array join mapValues(ProfileEvents) as value, mapKeys(ProfileEvents) as metric join unstable_query_runs using (query_id) ; create table unstable_run_metrics_2 engine File(TSVWithNamesAndTypes, 'unstable-run-metrics-2.$version.rep') as select test, query_index, query_id, v, n from ( select test, query_index, query_id, ['memory_usage', 'read_bytes', 'written_bytes', 'query_duration_ms'] n, [memory_usage, read_bytes, written_bytes, query_duration_ms] v from query_log join unstable_query_runs using (query_id) ) array join v, n; create view trace_log as select * from file('$version-trace-log.tsv', TSVWithNamesAndTypes); create view addresses_src as select addr, -- Some functions change name between builds, e.g. '__clone' or 'clone' or -- even '__GI__clone@@GLIBC_2.32'. This breaks differential flame graphs, so -- filter them out here. [name, 'clone.S (filtered by script)', 'pthread_cond_timedwait (filtered by script)'] -- this line is a subscript operator of the above array [1 + multiSearchFirstIndex(name, ['clone.S', 'pthread_cond_timedwait'])] name from file('$version-addresses.tsv', TSVWithNamesAndTypes); create table addresses_join_$version engine Join(any, left, address) as select addr address, name from addresses_src; create table unstable_run_traces engine File(TSVWithNamesAndTypes, 'unstable-run-traces.$version.rep') as select test, query_index, query_id, count() value, joinGet(addresses_join_$version, 'name', arrayJoin(trace)) || '(' || toString(trace_type) || ')' metric from trace_log join unstable_query_runs using query_id group by test, query_index, query_id, metric order by count() desc ; create table stacks engine File(TSV, 'report/stacks.$version.tsv') as select -- first goes the key used to split the file with grep test, query_index, trace_type, any(query_display_name), -- next go the stacks in flamegraph format: 'func1;...;funcN count' arrayStringConcat( arrayMap( addr -> joinGet(addresses_join_$version, 'name', addr), arrayReverse(trace) ), ';' ) readable_trace, count() c from trace_log join unstable_query_runs using query_id group by test, query_index, trace_type, trace order by test, query_index, trace_type, trace ; " 2> >(tee -a report/errors.log 1>&2) & done wait # Create per-query flamegraphs touch report/query-files.txt IFS=$'\n' for version in {right,left} do for query in $(cut -d' ' -f1-4 "report/stacks.$version.tsv" | sort | uniq) do query_file=$(echo "$query" | cut -c-120 | sed 's/[/ ]/_/g') echo "$query_file" >> report/query-files.txt # Build separate .svg flamegraph for each query. # -F is somewhat unsafe because it might match not the beginning of the # string, but this is unlikely and escaping the query for grep is a pain. rg -F "$query " "report/stacks.$version.tsv" \ | cut -f 5- \ | sed 's/\t/ /g' \ | tee "report/tmp/$query_file.stacks.$version.tsv" \ | ~/fg/flamegraph.pl --hash > "$query_file.$version.svg" & done done wait unset IFS # Create differential flamegraphs. while IFS= read -r query_file do ~/fg/difffolded.pl "report/tmp/$query_file.stacks.left.tsv" \ "report/tmp/$query_file.stacks.right.tsv" \ | tee "report/tmp/$query_file.stacks.diff.tsv" \ | ~/fg/flamegraph.pl > "$query_file.diff.svg" & done < report/query-files.txt wait # Create per-query files with metrics. Note that the key is different from flamegraphs. IFS=$'\n' for version in {right,left} do for query in $(cut -d' ' -f1-3 "report/metric-deviation.$version.tsv" | sort | uniq) do query_file=$(echo "$query" | cut -c-120 | sed 's/[/ ]/_/g') # Ditto the above comment about -F. rg -F "$query " "report/metric-deviation.$version.tsv" \ | cut -f4- > "$query_file.$version.metrics.rep" & done done wait unset IFS # Prefer to grep for clickhouse_driver exception messages, but if there are none, # just show a couple of lines from the log. for log in *-err.log do test=$(basename "$log" "-err.log") { # The second grep is a heuristic for error messages like # "socket.timeout: timed out". rg --no-filename --max-count=2 -i '\(Exception\|Error\):[^:]' "$log" \ || rg --no-filename --max-count=2 -i '^[^ ]\+: ' "$log" \ || head -2 "$log" } | sed "s/^/$test\t/" >> run-errors.tsv ||: done } function report_metrics { rm -rf metrics ||: mkdir metrics clickhouse-local --query " create view right_async_metric_log as select * from file('right-async-metric-log.tsv', TSVWithNamesAndTypes) ; -- Use the right log as time reference because it may have higher precision. create table metrics engine File(TSV, 'metrics/metrics.tsv') as with (select min(event_time) from right_async_metric_log) as min_time select metric, r.event_time - min_time event_time, l.value as left, r.value as right from right_async_metric_log r asof join file('left-async-metric-log.tsv', TSVWithNamesAndTypes) l on l.metric = r.metric and r.event_time <= l.event_time order by metric, event_time ; -- Show metrics that have changed create table changes engine File(TSV, 'metrics/changes.tsv') as select metric, left, right, round(diff, 3), round(times_diff, 3) from ( select metric, median(left) as left, median(right) as right, (right - left) / left diff, if(left > right, left / right, right / left) times_diff from metrics group by metric having abs(diff) > 0.05 and isFinite(diff) and isFinite(times_diff) ) order by diff desc ; " 2> >(tee -a metrics/errors.log 1>&2) IFS=$'\n' for prefix in $(cut -f1 "metrics/metrics.tsv" | sort | uniq) do file="metrics/$prefix.tsv" rg "^$prefix " "metrics/metrics.tsv" | cut -f2- > "$file" gnuplot -e " set datafile separator '\t'; set terminal png size 960,540; set xtics time format '%tH:%tM'; set title '$prefix' noenhanced offset 0,-3; set key left top; plot '$file' using 1:2 with lines title 'Left' , '$file' using 1:3 with lines title 'Right' ; " \ | convert - -filter point -resize "200%" "metrics/$prefix.png" & done wait unset IFS } function upload_results { # Prepare info for the CI checks table. rm -f ci-checks.tsv clickhouse-local --query " create view queries as select * from file('report/queries.tsv', TSVWithNamesAndTypes); create table ci_checks engine File(TSVWithNamesAndTypes, 'ci-checks.tsv') as select $PR_TO_TEST :: UInt32 AS pull_request_number, '$SHA_TO_TEST' :: LowCardinality(String) AS commit_sha, '${CLICKHOUSE_PERFORMANCE_COMPARISON_CHECK_NAME:-Performance}' :: LowCardinality(String) AS check_name, '$(sed -n 's/.*/\1/p' report.html)' :: LowCardinality(String) AS check_status, (($(date +%s) - $CHPC_CHECK_START_TIMESTAMP) * 1000) :: UInt64 AS check_duration_ms, fromUnixTimestamp($CHPC_CHECK_START_TIMESTAMP) check_start_time, test_name :: LowCardinality(String) AS test_name , test_status :: LowCardinality(String) AS test_status, test_duration_ms :: UInt64 AS test_duration_ms, report_url, $PR_TO_TEST = 0 ? 'https://github.com/ClickHouse/ClickHouse/commit/$SHA_TO_TEST' : 'https://github.com/ClickHouse/ClickHouse/pull/$PR_TO_TEST' pull_request_url, '' commit_url, '' task_url, '' base_ref, '' base_repo, '' head_ref, '' head_repo from ( select '' test_name, '$(sed -n 's/.*/\1/p' report.html)' test_status, 0 test_duration_ms, 'https://s3.amazonaws.com/clickhouse-test-reports/$PR_TO_TEST/$SHA_TO_TEST/${CLICKHOUSE_PERFORMANCE_COMPARISON_CHECK_NAME_PREFIX}/report.html#fail1' report_url union all select test || ' #' || toString(query_index) || '::' || test_desc_.1 test_name, 'slower' test_status, test_desc_.2*1e3 test_duration_ms, 'https://s3.amazonaws.com/clickhouse-test-reports/$PR_TO_TEST/$SHA_TO_TEST/${CLICKHOUSE_PERFORMANCE_COMPARISON_CHECK_NAME_PREFIX}/report.html#changes-in-performance.' || test || '.' || toString(query_index) report_url from queries array join map('old', left, 'new', right) as test_desc_ where changed_fail != 0 and diff > 0 union all select test || ' #' || toString(query_index) || '::' || test_desc_.1 test_name, 'unstable' test_status, test_desc_.2*1e3 test_duration_ms, 'https://s3.amazonaws.com/clickhouse-test-reports/$PR_TO_TEST/$SHA_TO_TEST/${CLICKHOUSE_PERFORMANCE_COMPARISON_CHECK_NAME_PREFIX}/report.html#unstable-queries.' || test || '.' || toString(query_index) report_url from queries array join map('old', left, 'new', right) as test_desc_ where unstable_fail != 0 ) ; " if ! [ -v CLICKHOUSE_PERFORMANCE_COMPARISON_DATABASE_URL ] then echo Database for test results is not specified, will not upload them. return 0 fi set +x # Don't show password in the log client=(clickhouse-client # Surprisingly, clickhouse-client doesn't understand --host 127.0.0.1:9000 # so I have to extract host and port with clickhouse-local. I tried to use # Poco URI parser to support this in the client, but it's broken and can't # parse host:port. $(clickhouse-local --query "with '${CLICKHOUSE_PERFORMANCE_COMPARISON_DATABASE_URL}' as url select '--host ' || domain(url) || ' --port ' || toString(port(url)) format TSV") --secure --user "${CLICKHOUSE_PERFORMANCE_COMPARISON_DATABASE_USER}" --password "${CLICKHOUSE_PERFORMANCE_COMPARISON_DATABASE_USER_PASSWORD}" --config "right/config/client_config.xml" --date_time_input_format=best_effort) # CREATE TABLE IF NOT EXISTS query_metrics_v2 ( # `event_date` Date, # `event_time` DateTime, # `pr_number` UInt32, # `old_sha` String, # `new_sha` String, # `test` LowCardinality(String), # `query_index` UInt32, # `query_display_name` String, # `metric` LowCardinality(String), # `old_value` Float64, # `new_value` Float64, # `diff` Float64, # `stat_threshold` Float64 # ) ENGINE = ReplicatedMergeTree # ORDER BY event_date # CREATE TABLE IF NOT EXISTS run_attributes_v1 ( # `old_sha` String, # `new_sha` String, # `metric` LowCardinality(String), # `metric_value` String # ) ENGINE = ReplicatedMergeTree # ORDER BY (old_sha, new_sha) "${client[@]}" --query " insert into query_metrics_v2 select toDate(event_time) event_date, toDateTime('$(cd right/ch && git show -s --format=%ci "$SHA_TO_TEST" | cut -d' ' -f-2)') event_time, $PR_TO_TEST pr_number, '$REF_SHA' old_sha, '$SHA_TO_TEST' new_sha, test, query_index, query_display_name, metric_name as metric, old_value, new_value, diff, stat_threshold from input('metric_name text, old_value float, new_value float, diff float, ratio_display_text text, stat_threshold float, test text, query_index int, query_display_name text') format TSV " < report/all-query-metrics.tsv # Don't leave whitespace after INSERT: https://github.com/ClickHouse/ClickHouse/issues/16652 # Upload some run attributes. I use this weird form because it is the same # form that can be used for historical data when you only have compare.log. cat compare.log \ | sed -n ' s/.*Model name:[[:space:]]\+\(.*\)$/metric lscpu-model-name \1/p; s/.*L1d cache:[[:space:]]\+\(.*\)$/metric lscpu-l1d-cache \1/p; s/.*L1i cache:[[:space:]]\+\(.*\)$/metric lscpu-l1i-cache \1/p; s/.*L2 cache:[[:space:]]\+\(.*\)$/metric lscpu-l2-cache \1/p; s/.*L3 cache:[[:space:]]\+\(.*\)$/metric lscpu-l3-cache \1/p; s/.*left_sha=\(.*\)$/old-sha \1/p; s/.*right_sha=\(.*\)/new-sha \1/p' \ | awk ' BEGIN { FS = "\t"; OFS = "\t" } /^old-sha/ { old_sha=$2 } /^new-sha/ { new_sha=$2 } /^metric/ { print old_sha, new_sha, $2, $3 }' \ | "${client[@]}" --query "INSERT INTO run_attributes_v1 FORMAT TSV" # Grepping numactl results from log is too crazy, I'll just call it again. "${client[@]}" --query "INSERT INTO run_attributes_v1 FORMAT TSV" < /dev/null clickhouse-client --version > /dev/null case "$stage" in "") ;& "configure") time configure ;& "restart") numactl --show ||: numactl --hardware ||: lscpu ||: dmidecode -t 4 ||: time restart ;& "run_tests") # Ignore the errors to collect the log and build at least some report, anyway time run_tests ||: ;& "get_profiles") # Check for huge pages. cat /sys/kernel/mm/transparent_hugepage/enabled > thp-enabled.txt ||: cat /proc/meminfo > meminfo.txt ||: for pid in $(pgrep -f clickhouse-server) do cat "/proc/$pid/smaps" > "$pid-smaps.txt" ||: done # We had a bug where getting profiles froze sometimes, so try to save some # logs if this happens again. Give the servers some time to collect all info, # then trace and kill. Start in a subshell, so that both function don't # interfere with each other's jobs through `wait`. Also make the subshell # have its own process group, so that we can then kill it with all its child # processes. Somehow it doesn't kill the children by itself when dying. set -m ( get_profiles_watchdog ) & watchdog_pid=$! set +m # Check that the watchdog started OK. kill -0 $watchdog_pid # If the tests fail with OOM or something, still try to restart the servers # to collect the logs. Prefer not to restart, because addresses might change # and we won't be able to process trace_log data. Start in a subshell, so that # it doesn't interfere with the watchdog through `wait`. ( get_profiles || { restart && get_profiles ; } ) ||: # Kill the whole process group, because somehow when the subshell is killed, # the sleep inside remains alive and orphaned. while env kill -- -$watchdog_pid ; do sleep 1; done # Stop the servers to free memory for the subsequent query analysis. while pkill -f clickhouse-serv ; do echo . ; sleep 1 ; done echo Servers stopped. ;& "analyze_queries") time analyze_queries ||: ;& "report") time report ||: ;& "report_metrics") time report_metrics ||: cat metrics/errors.log >> report/errors.log ||: ;& "report_html") time "$script_dir/report.py" --report=all-queries > all-queries.html 2> >(tee -a report/errors.log 1>&2) ||: time "$script_dir/report.py" > report.html ;& "upload_results") time upload_results ||: ;& esac # Print some final debug info to help debug Weirdness, of which there is plenty. jobs pstree -apgT