ClickHouse/tests/config/config.d/storage_conf.xml

<clickhouse>
    <storage_configuration>
        <disks>
            <s3_disk>
                <type>s3</type>
                <path>s3_disk/</path>
                <endpoint>http://localhost:11111/test/s3/</endpoint>
                <access_key_id>clickhouse</access_key_id>
                <secret_access_key>clickhouse</secret_access_key>
                <request_timeout_ms>20000</request_timeout_ms>
            </s3_disk>
            <s3_plain_disk>
                <type>s3_plain</type>
                <endpoint>http://localhost:11111/test/s3_plain/</endpoint>
                <access_key_id>clickhouse</access_key_id>
                <secret_access_key>clickhouse</secret_access_key>
            </s3_plain_disk>
            <s3_cache>
                <type>cache</type>
                <disk>s3_disk</disk>
                <path>s3_cache/</path>
                <max_size>64Mi</max_size>
                <cache_on_write_operations>1</cache_on_write_operations>
                <delayed_cleanup_interval_ms>100</delayed_cleanup_interval_ms>
                <cache_policy>LRU</cache_policy>
                <slru_size_ratio>0.3</slru_size_ratio>
                <keep_free_space_size_ratio>0.1</keep_free_space_size_ratio>
                <keep_free_space_elements_ratio>0.1</keep_free_space_elements_ratio>
            </s3_cache>
            <s3_cache_02933>
                <type>cache</type>
                <disk>s3_disk</disk>
                <path>s3_cache_02933/</path>
                <max_size>128Mi</max_size>
                <cache_on_write_operations>1</cache_on_write_operations>
                <delayed_cleanup_interval_ms>100</delayed_cleanup_interval_ms>
                <background_download_threads>0</background_download_threads>
                <background_download_queue_size_limit>0</background_download_queue_size_limit>
            </s3_cache_02933>
            <!-- local disks -->
            <local_disk>
                <type>object_storage</type>
                <object_storage_type>local</object_storage_type>
                <path>local_disk/</path>
            </local_disk>
            <local_disk_2>
                <type>object_storage</type>
                <object_storage_type>local_blob_storage</object_storage_type>
                <path>local_disk_2/</path>
            </local_disk_2>
            <local_disk_3>
                <type>local_blob_storage</type>
                <path>local_disk_3/</path>
            </local_disk_3>
            <!-- cache for local disks -->
            <local_cache>
                <type>cache</type>
                <disk>local_disk</disk>
                <path>local_cache/</path>
                <max_size>22548578304</max_size>
                <cache_on_write_operations>1</cache_on_write_operations>
                <delayed_cleanup_interval_ms>100</delayed_cleanup_interval_ms>
            </local_cache>
            <local_cache_2>
                <type>cache</type>
                <disk>local_disk</disk>
                <path>local_cache_2/</path>
                <max_size>22548578304</max_size>
                <delayed_cleanup_interval_ms>100</delayed_cleanup_interval_ms>
            </local_cache_2>
            <local_cache_3>
                <type>cache</type>
                <disk>local_disk_3</disk>
                <path>local_cache_3/</path>
                <max_size>22548578304</max_size>
                <cache_on_write_operations>1</cache_on_write_operations>
                <enable_cache_hits_threshold>1</enable_cache_hits_threshold>
                <delayed_cleanup_interval_ms>100</delayed_cleanup_interval_ms>
            </local_cache_3>
            <!-- multi layer cache -->
            <s3_cache_multi>
                <type>cache</type>
                <disk>s3_cache</disk>
                <path>s3_cache_multi/</path>
                <max_size>22548578304</max_size>
                <delayed_cleanup_interval_ms>100</delayed_cleanup_interval_ms>
            </s3_cache_multi>
            <s3_cache_multi_2>
                <type>cache</type>
                <disk>s3_cache_multi</disk>
                <path>s3_cache_multi_2/</path>
                <max_size>22548578304</max_size>
                <delayed_cleanup_interval_ms>100</delayed_cleanup_interval_ms>
            </s3_cache_multi_2>
        </disks>
        <policies>
            <local_remote>
                <volumes>
                    <local><disk>default</disk></local>
                    <remote><disk>s3_disk</disk></remote>
                </volumes>
            </local_remote>
            <s3_cache>
                <volumes>
                    <main>
                        <disk>s3_cache</disk>
                    </main>
                </volumes>
            </s3_cache>
            <s3_cache_multi>
                <volumes>
                    <main>
                        <disk>s3_cache_multi_2</disk>
                    </main>
                </volumes>
            </s3_cache_multi>
            <local_cache>
                <volumes>
                    <main>
                        <disk>local_cache</disk>
                    </main>
                </volumes>
            </local_cache>
            <local_cache_2>
                <volumes>
                    <main>
                        <disk>local_cache_2</disk>
                    </main>
                </volumes>
            </local_cache_2>
            <local_cache_3>
                <volumes>
                    <main>
                        <disk>local_cache_3</disk>
                    </main>
                </volumes>
            </local_cache_3>
        </policies>
    </storage_configuration>
</clickhouse>