ClickHouse/tests/queries/0_stateless/01459_manual_write_to_replicas.sh

#!/usr/bin/env bash

set -e

CURDIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
. "$CURDIR"/../shell_config.sh

NUM_REPLICAS=10

for i in $(seq 1 $NUM_REPLICAS); do
    $CLICKHOUSE_CLIENT -n -q "
        DROP TABLE IF EXISTS r$i;
        CREATE TABLE r$i (x UInt64) ENGINE = ReplicatedMergeTree('/clickhouse/tables/01459_manual_write_ro_replicas/r', 'r$i') ORDER BY x;
    "
done

function thread {
    for x in {0..99}; do
        # sometimes we can try to commit obsolete part if fetches will be quite fast,
        # so supress warning messages like "Tried to commit obsolete part ... covered by ..."
        $CLICKHOUSE_CLIENT --query "INSERT INTO r$1 SELECT $x % $NUM_REPLICAS = $1 ? $x - 1 : $x" 2>/dev/null  # Replace some records as duplicates so they will be written by other replicas
    done
}

for i in $(seq 1 $NUM_REPLICAS); do
    thread $i &
done

wait

for i in $(seq 1 $NUM_REPLICAS); do
    $CLICKHOUSE_CLIENT -n -q "
        SYSTEM SYNC REPLICA r$i;
        SELECT count(), min(x), max(x), sum(x) FROM r$i;
        DROP TABLE IF EXISTS r$i;
"
done