Mariadb

無法使用 ROW_FORMAT=COMPRESSED 創建表

  • July 14, 2021

我正在嘗試在 docker 容器中的 MariaDB 10.4.11-MariaDB-1:10.4.11+maria~bionic 上安裝 Nextcloud (mariadb:latest sha256:2f11cf2ec18988aec8346a5cf528d69ac3f0f4fc02af79ba28f4fd47b7778d6f)。

安裝程序所做的第一件事是嘗試ROW_FORMAT=COMPRESSED在 DDL 中創建一個表,這會產生錯誤 140“錯誤的創建選項”。

如果我省略 row_format 參數,則創建表,但使用 DYNAMIC row_format。

這裡發生了什麼?ROW_FORMAT=COMPRESSED是在某個時候被刪除了,還是 MariaDB docker 的版本沒有在其中編譯?

沒有修改 Nextcloud 的 SQL DDL,我可以在這裡做什麼?

Edit:

最後可以添加有關我的系統的更多資訊,這裡是:

首先,我的my.cnf

[mysqld]
innodb_large_prefix=on
innodb_file_per_table=on
innodb_doublewrite=off
innodb_page_size=64k
innodb_file_format=barracuda

innodb_compression_algorithm=lz4
innodb_compression_default=ON

這將導致包含以下行的啟動:

2020-01-11 07:10:48+00:00 [Note] [Entrypoint]: Entrypoint script for MySQL Server 1:10.4.11+maria~bionic started.
2020-01-11 07:10:57+00:00 [Note] [Entrypoint]: Switching to dedicated user 'mysql'
2020-01-11 07:10:58+00:00 [Note] [Entrypoint]: Entrypoint script for MySQL Server 1:10.4.11+maria~bionic started.
2020-01-11  7:10:58 0 [Note] mysqld (mysqld 10.4.11-MariaDB-1:10.4.11+maria~bionic) starting as process 1 ...
2020-01-11  7:10:58 0 [Warning] The parameter innodb_file_format is deprecated and has no effect. It may be removed in future releases. See https://mariadb.com/kb/en/library/xtradbinnodb-file-format/
2020-01-11  7:10:58 0 [Note] InnoDB: innodb_page_size=65536
2020-01-11  7:10:58 0 [Note] InnoDB: Using Linux native AIO
2020-01-11  7:10:58 0 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2020-01-11  7:10:58 0 [Note] InnoDB: Uses event mutexes
2020-01-11  7:10:58 0 [Note] InnoDB: Compressed tables use zlib 1.2.11
2020-01-11  7:10:58 0 [Note] InnoDB: Number of pools: 1
2020-01-11  7:10:58 0 [Note] InnoDB: Using SSE2 crc32 instructions
2020-01-11  7:10:58 0 [Note] mysqld: O_TMPFILE is not supported on /tmp (disabling future attempts)
2020-01-11  7:10:58 0 [Note] InnoDB: Initializing buffer pool, total size = 256M, instances = 1, chunk size = 128M
2020-01-11  7:10:58 0 [Note] InnoDB: Completed initialization of buffer pool
2020-01-11  7:10:58 0 [Note] InnoDB: If the mysqld execution user is authorized, page cleaner thread priority can be changed. See the man page of setpriority().
2020-01-11  7:11:06 0 [Note] InnoDB: 128 out of 128 rollback segments are active.
2020-01-11  7:11:06 0 [Note] InnoDB: Creating shared tablespace for temporary tables
2020-01-11  7:11:06 0 [Note] InnoDB: Setting file './ibtmp1' size to 12 MB. Physically writing the file full; Please wait ...
2020-01-11  7:11:06 0 [Note] InnoDB: File './ibtmp1' size is now 12 MB.
2020-01-11  7:11:06 0 [Note] InnoDB: Waiting for purge to start
2020-01-11  7:11:06 0 [Note] InnoDB: 10.4.11 started; log sequence number 202590810; transaction id 682452
2020-01-11  7:11:06 0 [Note] InnoDB: Loading buffer pool(s) from /var/lib/mysql/ib_buffer_pool
2020-01-11  7:11:06 0 [Note] Plugin 'FEEDBACK' is disabled.
2020-01-11  7:11:07 0 [Note] Server socket created on IP: '::'.
2020-01-11  7:11:08 0 [Note] Reading of all Master_info entries succeeded
2020-01-11  7:11:08 0 [Note] Added new Master_info '' to hash table
2020-01-11  7:11:08 0 [Note] mysqld: ready for connections.
Version: '10.4.11-MariaDB-1:10.4.11+maria~bionic'  socket: '/var/run/mysqld/mysqld.sock'  port: 3306  mariadb.org binary distribution
2020-01-11  7:11:30 0 [Note] InnoDB: Buffer pool(s) load completed at 200111  7:11:30

由於我必須更改創建表 DDL 才能執行,因此這是一個實際創建的此類表的範例:

CREATE TABLE `oc_users` (
 `uid` varchar(64) COLLATE utf8mb4_bin NOT NULL DEFAULT '',
 `displayname` varchar(64) COLLATE utf8mb4_bin DEFAULT NULL,
 `password` varchar(255) COLLATE utf8mb4_bin NOT NULL DEFAULT '',
 `uid_lower` varchar(64) COLLATE utf8mb4_bin DEFAULT '',
 PRIMARY KEY (`uid`),
 KEY `user_uid_lower` (`uid_lower`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_bin `PAGE_COMPRESSED`='ON' 

請注意,這只是PAGE_COMPRESSED一個有效的選項,ROW_FORMAT=COMPRESSED無論如何該選項都會失敗。

SHOW GLOBAL STATUS命令:https : //pastebin.com/LzjsAvAX

SHOW VARIABLES命令:https ://pastebin.com/64zpmh2Z

我執行的系統有 8 GB 的 RAM,其中 MariaDB 使用了大約 170 MB。

如果其他人(像我一樣)偶然發現這個執行緒正在尋找解決方案

4047 InnoDB refuses to write tables with ROW_FORMAT=COMPRESSED or KEY_BLOCK_SIZE

或來自 nextcloud 的 mariadb 的類似錯誤,每當 nextcloud 嘗試寫入數據庫時就會發生:對我來說重要的線索是,此錯誤可能與 utf8 編碼問題有關。有關 nextcloud 文件,請參見此處:

https://docs.nextcloud.com/server/21/admin_manual/configuration_database/mysql_4byte_support.html

TL; 博士:

https://help.nextcloud.com/t/update-to-next-cloud-21-0-2-has-get-an-error/117028/7對我來說的解決方案 是:

php occ config:system:set mysql.utf8mb4 --type boolean --value="false"

其次是

php occ maintenance:repair --include-expensive

這將修復所有表,以便再次寫入它們。

多虧了反手評論,我深入研究了innodb_page_size的文件,其中簡要提到了:

當 innodb_page_size 設置為 32KB 或 64KB 時,不支持 ROW_FORMAT=COMPRESSED。

由於我調整了 InnoDB 頁面大小以匹配儲存介質(即 64 Kb),這意味著它ROW_FORMAT=COMPRESSED被自動(並且永久)禁用,並且系統內沒有解釋來解釋這一點。

因此,長話短說,如果您打算做任何事情,您必須抓取文件的每一微米,並且您可能嘗試的任何優化都會立即將您帶入“不支持離開”領域。否則,就會出現模糊和無意義的錯誤。

那好吧。

引用自:https://dba.stackexchange.com/questions/256427