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https://github.com/ClickHouse/ClickHouse.git
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82054d40a5
Before you was able to break the format by using "\n" or "\t", that will simply lead to DDL hang, because DDLWorker will simply log the error and do nothing more: <Error> DDLWorker: Cannot parse DDL task query-0000000056: Incorrect task format. Will try to send error status: Code: 27. DB::ParsingException: Cannot parse input: expected '\n' before: 'bar\n1\n'. (CANNOT_PARSE_INPUT_ASSERTION_FAILED) (version 23.5.1.1) Fix this by adding proper escaping. Signed-off-by: Azat Khuzhin <a.khuzhin@semrush.com>
162 lines
5.7 KiB
Bash
Executable File
162 lines
5.7 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Tags: zookeeper
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CURDIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
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# shellcheck source=../shell_config.sh
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. "$CURDIR"/../shell_config.sh
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# The test cases in this file cover DDLs running on both Replicated database engine and non-Replicated database engine.
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# Since the processing flow is a little bit different from each other, in order to share same reference file,
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# we compare the expected result and actual result by ourselves. See check_span method below for more detail.
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# This function takes following arguments:
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# $1 - OpenTelemetry Trace Id
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# $2 - Query
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# $3 - Query Settings
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function execute_query()
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{
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local trace_id=$1 && shift
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local ddl_version=$1 && shift
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local opts=(
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--opentelemetry-traceparent "00-$trace_id-5150000000000515-01"
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--opentelemetry-tracestate $'a\nb cd'
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--distributed_ddl_output_mode "none"
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--distributed_ddl_entry_format_version "$ddl_version"
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)
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${CLICKHOUSE_CLIENT} "${opts[@]}" "$@"
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}
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# This function takes following argument:
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# $1 - expected
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# $2 - OpenTelemetry Trace Id
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# $3 - operation_name pattern
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# $4 - extra condition
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function check_span()
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{
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if [ -n "$4" ]; then
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extra_condition=" AND ${4}"
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else
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extra_condition=""
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fi
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ret=$(${CLICKHOUSE_CLIENT} -nq "
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SYSTEM FLUSH LOGS;
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SELECT count()
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FROM system.opentelemetry_span_log
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WHERE finish_date >= yesterday()
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AND lower(hex(trace_id)) = '${2}'
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AND operation_name like '${3}'
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${extra_condition};")
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if [ $ret = $1 ]; then
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echo 1
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else
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echo "[operation_name like '${3}' ${extra_condition}]=$ret, expected: ${1}"
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# echo the span logs to help analyze
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${CLICKHOUSE_CLIENT} -q "
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SELECT operation_name, attribute
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FROM system.opentelemetry_span_log
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WHERE finish_date >= yesterday()
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AND lower(hex(trace_id)) ='${2}'
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ORDER BY start_time_us
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Format PrettyCompact
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"
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fi
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}
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#
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# Set up
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#
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${CLICKHOUSE_CLIENT} -q "
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DROP TABLE IF EXISTS ${CLICKHOUSE_DATABASE}.ddl_test_for_opentelemetry;
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"
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# Support Replicated database engine
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cluster_name=$($CLICKHOUSE_CLIENT -q "select if(engine = 'Replicated', name, 'test_shard_localhost') from system.databases where name='$CLICKHOUSE_DATABASE'")
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#
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# Only format_version 4 enables the tracing
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#
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for ddl_version in 3 4; do
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# Echo a separator so that the reference file is more clear for reading
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echo "===ddl_format_version ${ddl_version}===="
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trace_id=$(${CLICKHOUSE_CLIENT} -q "select lower(hex(generateUUIDv4()))");
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execute_query $trace_id $ddl_version -q "CREATE TABLE ${CLICKHOUSE_DATABASE}.ddl_test_for_opentelemetry ON CLUSTER ${cluster_name} (id UInt64) Engine=MergeTree ORDER BY id"
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check_span 1 $trace_id "TCPHandler"
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if [ $cluster_name = "test_shard_localhost" ]; then
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check_span 1 $trace_id "%executeDDLQueryOnCluster%" "attribute['clickhouse.cluster']='${cluster_name}'"
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else
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check_span 1 $trace_id "%tryEnqueueAndExecuteEntry%" "attribute['clickhouse.cluster']='${cluster_name}'"
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fi
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if [ $cluster_name = "test_shard_localhost" ]; then
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# The tracing is only enabled when entry format version is 4
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if [ $ddl_version = "4" ]; then
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expected=1
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else
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expected=0
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fi
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else
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# For Replicated database engine, the tracing is always enabled because it calls DDLWorker::processTask directly
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expected=1
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fi
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check_span $expected $trace_id "%DDLWorker::processTask%"
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# For queries that tracing are enabled(format version is 4 or Replicated database engine), there should be two 'query' spans,
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# one is for the TCPHandler, the other is for the DDL executing in DDLWorker.
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#
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# For other format, there should be only one 'query' span
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if [ $cluster_name = "test_shard_localhost" ]; then
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if [ $ddl_version = "4" ]; then
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expected=2
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else
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expected=1
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fi
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else
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expected=2
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fi
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check_span $expected $trace_id "query"
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# Remove table
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# Under Replicated database engine, the DDL is executed as ON CLUSTER DDL, so distributed_ddl_output_mode is needed to supress output
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${CLICKHOUSE_CLIENT} --distributed_ddl_output_mode none -q "
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DROP TABLE IF EXISTS ${CLICKHOUSE_DATABASE}.ddl_test_for_opentelemetry;
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"
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done
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#
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# an exceptional case, DROP a non-exist table
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#
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# Echo a separator so that the reference file is more clear for reading
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echo "===exception===="
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trace_id=$(${CLICKHOUSE_CLIENT} -q "select lower(hex(generateUUIDv4()))");
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execute_query $trace_id 4 -q "DROP TABLE ${CLICKHOUSE_DATABASE}.ddl_test_for_opentelemetry_non_exist ON CLUSTER ${cluster_name}" 2>&1 | grep 'DB::Exception ' | grep -Fv "UNKNOWN_TABLE"
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check_span 1 $trace_id "TCPHandler"
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if [ $cluster_name = "test_shard_localhost" ]; then
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expected=1
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else
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# For Replicated database it will fail on initiator before enqueueing distributed DDL
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expected=0
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fi
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check_span $expected $trace_id "%executeDDLQueryOnCluster%" "attribute['clickhouse.cluster']='${cluster_name}' AND kind = 'PRODUCER'"
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check_span $expected $trace_id "%DDLWorker::processTask%" "kind = 'CONSUMER'"
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if [ $cluster_name = "test_shard_localhost" ]; then
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# There should be two 'query' spans, one is for the TCPHandler, the other is for the DDL executing in DDLWorker.
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# Both of these two spans contain exception
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expected=2
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else
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# For Replicated database, there should only one query span
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expected=1
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fi
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# We don't case about the exact value of exception_code, just check it's there.
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check_span $expected $trace_id "query" "attribute['clickhouse.exception_code']<>''"
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