mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-30 19:42:00 +00:00
18 lines
957 B
Bash
Executable File
18 lines
957 B
Bash
Executable File
#!/usr/bin/env bash
|
|
# Tags: no-parallel
|
|
|
|
CUR_DIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
|
|
# shellcheck source=../shell_config.sh
|
|
. "$CUR_DIR"/../shell_config.sh
|
|
|
|
|
|
current_dns_errors=$($CLICKHOUSE_CLIENT --query "SELECT sum(value) FROM system.events where event = 'DNSError';")
|
|
${CLICKHOUSE_CLIENT} --query "SELECT * FROM remote('ThisHostNameDoesNotExistSoItShouldFail', system, one)" 2>/dev/null
|
|
${CLICKHOUSE_CLIENT} --query "SELECT 'first_check', sum(value) > ${current_dns_errors} FROM system.events where event = 'DNSError';"
|
|
|
|
current_dns_errors=$($CLICKHOUSE_CLIENT --query "SELECT sum(value) FROM system.events where event = 'DNSError';")
|
|
${CLICKHOUSE_CLIENT} --query "SELECT * FROM remote('ThisHostNameDoesNotExistSoItShouldFail2', system, one)" 2>/dev/null
|
|
${CLICKHOUSE_CLIENT} --query "SELECT 'second_check', sum(value) > ${current_dns_errors} FROM system.events where event = 'DNSError';"
|
|
|
|
${CLICKHOUSE_CLIENT} --query "SYSTEM DROP DNS CACHE"
|