#!/usr/bin/env bash # Tags: zookeeper, no-replicated-database, no-fasttest # no-fasttest: Slow wait CUR_DIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd) # shellcheck source=../shell_config.sh . "$CUR_DIR"/../shell_config.sh ${CLICKHOUSE_CLIENT} --multiline -q """ drop table if exists forget_partition; create table forget_partition ( k UInt64, d Date, v String ) engine = ReplicatedMergeTree('/test/02995/{database}/rmt', '1') order by (k, d) partition by toYYYYMMDD(d) -- Reduce max_merge_selecting_sleep_ms and max_cleanup_delay_period to speed up the part being dropped from memory (RMT) -- Same with old_parts_lifetime for SMT SETTINGS old_parts_lifetime=5, merge_selecting_sleep_ms=1000, max_merge_selecting_sleep_ms=5000, cleanup_delay_period=3, max_cleanup_delay_period=5; insert into forget_partition select number, '2024-01-01' + interval number day, randomString(20) from system.numbers limit 10; alter table forget_partition drop partition '20240101'; alter table forget_partition drop partition '20240102'; """ # DROP PARTITION do not wait for a part to be removed from memory due to possible concurrent SELECTs, so we have to do wait manually here while [[ $(${CLICKHOUSE_CLIENT} -q "select count() from system.parts where database=currentDatabase() and table='forget_partition' and partition IN ('20240101', '20240102')") != 0 ]]; do sleep 1; done ${CLICKHOUSE_CLIENT} --multiline -q """ set allow_unrestricted_reads_from_keeper=1; select '---before---'; select name from system.zookeeper where path = '/test/02995/' || currentDatabase() || '/rmt/block_numbers' order by name; alter table forget_partition forget partition '20240103'; -- {serverError CANNOT_FORGET_PARTITION} alter table forget_partition forget partition '20240203'; -- {serverError CANNOT_FORGET_PARTITION} alter table forget_partition forget partition '20240101'; select '---after---'; select name from system.zookeeper where path = '/test/02995/' || currentDatabase() || '/rmt/block_numbers' order by name; drop table forget_partition; """