mirror of
https://github.com/ClickHouse/ClickHouse.git
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84 lines
3.2 KiB
Bash
Executable File
84 lines
3.2 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Tags: no-fasttest, long
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CUR_DIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
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# shellcheck source=../shell_config.sh
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. "$CUR_DIR"/../shell_config.sh
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function check_refcnt_for_table()
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{
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local table=$1 && shift
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$CLICKHOUSE_CLIENT -nm -q "
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system stop merges $table;
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-- cleanup thread may hold the parts lock
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system stop cleanup $table;
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-- queue may hold the parts lock for awhile as well
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system stop pulling replication log $table;
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"
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$CLICKHOUSE_CLIENT --insert_keeper_fault_injection_probability=0 -q "insert into $table select number, number%4 from numbers(2000)"
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local query_id
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query_id="$table-$(random_str 10)"
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local log_file
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log_file=$(mktemp "$CUR_DIR/clickhouse-tests.XXXXXX.log")
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local args=(
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--allow_repeated_settings
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--format Null
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--max_threads 1
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--max_block_size 1
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--merge_tree_read_split_ranges_into_intersecting_and_non_intersecting_injection_probability 0.0
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--query_id "$query_id"
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--send_logs_level "test"
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--server_logs_file "$log_file"
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)
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# Notes:
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# - query may sleep 0.1*(2000/4)=50 seconds maximum, it is enough to check system.parts
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# - "part = 1" condition should prune all parts except first
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# - max_block_size=1 with index_granularity=1 will allow to cancel the query earlier
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$CLICKHOUSE_CLIENT "${args[@]}" -q "select sleepEachRow(0.1) from $table where part = 1" &
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PID=$!
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# When the query only starts it execution it holds reference for each part,
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# however when it starts reading, partition pruning takes place,
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# and it should hold only parts that are required for SELECT
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#
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# So let's wait while the reading will be started.
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while ! grep -F -q -e "Exception" -e "MergeTreeRangeReader" "$log_file"; do
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sleep 0.1
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done
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# NOTE: parts that are used in query will be holded in multiple places, and
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# this is where magic 6 came from. Also there could be some other
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# background threads (i.e. asynchronous metrics) that uses the part, so we
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# simply filter parts not by "refcount > 1" but with some delta - "3", to
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# avoid flakiness.
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$CLICKHOUSE_CLIENT -q "select table, name, refcount>=6 from system.parts where database = '$CLICKHOUSE_DATABASE' and table = '$table' and refcount >= 3"
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# Kill the query gracefully.
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kill -INT $PID
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wait $PID
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grep -F Exception "$log_file" | grep -v -F QUERY_WAS_CANCELLED
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rm -f "${log_file:?}"
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}
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# NOTE: index_granularity=1 to cancel ASAP
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$CLICKHOUSE_CLIENT -nmq "
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drop table if exists data_02340;
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create table data_02340 (key Int, part Int) engine=MergeTree() partition by part order by key settings index_granularity=1;
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" || exit 1
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check_refcnt_for_table data_02340
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$CLICKHOUSE_CLIENT -q "drop table data_02340 sync"
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$CLICKHOUSE_CLIENT -nmq "
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drop table if exists data_02340_rep sync;
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create table data_02340_rep (key Int, part Int) engine=ReplicatedMergeTree('/clickhouse/$CLICKHOUSE_TEST_ZOOKEEPER_PREFIX', '1') partition by part order by key settings index_granularity=1;
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" || exit 1
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check_refcnt_for_table data_02340_rep
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$CLICKHOUSE_CLIENT -q "drop table data_02340_rep sync"
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exit 0
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