워크로드 스케줄링

CREATE RESOURCE cpu (MASTER THREAD, WORKER THREAD)

CREATE RESOURCE memory (MEMORY RESERVATION)

CREATE RESOURCE query (QUERY)

CREATE RESOURCE resource_name (WRITE DISK disk_name, READ DISK disk_name)
-- or
CREATE RESOURCE read_resource_name (WRITE DISK write_disk_name)
CREATE RESOURCE write_resource_name (READ DISK read_disk_name)

CREATE RESOURCE all_io (READ ANY DISK, WRITE ANY DISK);

CREATE RESOURCE cpu (MASTER THREAD, WORKER THREAD)
CREATE RESOURCE memory (MEMORY RESERVATION)
CREATE RESOURCE s3_read (READ DISK s3)
CREATE RESOURCE s3_write (WRITE DISK s3)
CREATE WORKLOAD all SETTINGS max_concurrent_threads_ratio_to_cores = 2, max_memory_ratio = 0.8, max_bytes_per_second = '2Gi'
CREATE WORKLOAD user IN all SETTINGS weight = 9
CREATE WORKLOAD system IN all
CREATE WORKLOAD development IN user
CREATE WORKLOAD production IN user SETTINGS weight = 3

CREATE OR REPLACE WORKLOAD all SETTINGS max_io_requests = 100, max_bytes_per_second = '1Mi' FOR network_read, max_bytes_per_second = '2Mi' FOR network_write

SELECT count() FROM my_table WHERE value = 42 SETTINGS workload = 'production'
SELECT count() FROM my_table WHERE value = 13 SETTINGS workload = 'development'

CREATE RESOURCE cpu (MASTER THREAD, WORKER THREAD)
CREATE WORKLOAD all SETTINGS max_concurrent_threads = 100

CREATE RESOURCE worker_cpu (WORKER THREAD)
CREATE RESOURCE master_cpu (MASTER THREAD)
CREATE WORKLOAD all SETTINGS max_concurrent_threads = 100 FOR worker_cpu, max_concurrent_threads = 1000 FOR master_cpu

CREATE RESOURCE cpu (MASTER THREAD, WORKER THREAD)
CREATE WORKLOAD all
CREATE WORKLOAD admin IN all SETTINGS max_concurrent_threads = 10
CREATE WORKLOAD production IN all SETTINGS max_concurrent_threads = 100
CREATE WORKLOAD analytics IN production SETTINGS max_concurrent_threads = 60, weight = 9
CREATE WORKLOAD ingestion IN production

CREATE RESOURCE cpu (MASTER THREAD, WORKER THREAD)
CREATE WORKLOAD all SETTINGS max_concurrent_threads_ratio_to_cores = 2
CREATE WORKLOAD admin IN all SETTINGS max_concurrent_threads = 2, priority = -1
CREATE WORKLOAD production IN all SETTINGS weight = 4
CREATE WORKLOAD analytics IN production SETTINGS max_cpu_share = 0.7, weight = 3
CREATE WORKLOAD ingestion IN production
CREATE WORKLOAD development IN all SETTINGS max_cpu_share = 0.3

CREATE RESOURCE memory (MEMORY RESERVATION)
CREATE WORKLOAD all SETTINGS max_memory = '2Gi'

CREATE RESOURCE memory (MEMORY RESERVATION)
CREATE WORKLOAD all SETTINGS max_memory = '10Gi'
CREATE WORKLOAD system IN all SETTINGS weight = 1
CREATE WORKLOAD user IN all SETTINGS weight = 9
CREATE WORKLOAD production IN user SETTINGS precedence = 1, weight = 3
CREATE WORKLOAD staging IN user SETTINGS precedence = 1, weight = 1
CREATE WORKLOAD testing IN user SETTINGS precedence = 2

CREATE RESOURCE query (QUERY)
CREATE WORKLOAD all SETTINGS max_concurrent_queries = 100, max_queries_per_second = 10, max_burst_queries = 20

<clickhouse>
    <resources_and_workloads>
        CREATE RESOURCE memory (MEMORY RESERVATION);
        CREATE RESOURCE s3disk_read (READ DISK s3);
        CREATE RESOURCE s3disk_write (WRITE DISK s3);
        CREATE WORKLOAD all SETTINGS max_memory = '2Gi', max_io_requests = 500 FOR s3disk_read, max_io_requests = 1000 FOR s3disk_write, max_bytes_per_second = '1280Mi' FOR s3disk_read, max_bytes_per_second = '3200Mi' FOR s3disk_write;
        CREATE WORKLOAD production IN all SETTINGS weight = 3;
    </resources_and_workloads>
</clickhouse>

CREATE RESOURCE network_write (WRITE DISK s3)
CREATE RESOURCE memory (MEMORY RESERVATION)
CREATE WORKLOAD all SETTINGS max_io_requests = 100, max_memory = '2Gi'
CREATE WORKLOAD development IN all
CREATE WORKLOAD production IN all SETTINGS weight = 3

<clickhouse>
    <storage_configuration>
        ...
        <disks>
            <s3>
                <type>s3</type>
                <endpoint>https://clickhouse-public-datasets.s3.amazonaws.com/my-bucket/root-path/</endpoint>
                <access_key_id>your_access_key_id</access_key_id>
                <secret_access_key>your_secret_access_key</secret_access_key>
                <read_resource>network_read</read_resource>
                <write_resource>network_write</write_resource>
            </s3>
        </disks>
        <policies>
            <s3_main>
                <volumes>
                    <main>
                        <disk>s3</disk>
                    </main>
                </volumes>
            </s3_main>
        </policies>
    </storage_configuration>
</clickhouse>