{"author_url":"https://blog.hatena.ne.jp/mita2db/","categories":["TiDB"],"height":"190","width":"100%","blog_url":"https://mita2db.hateblo.jp/","blog_title":"mita2 database life","version":"1.0","url":"https://mita2db.hateblo.jp/entry/tidb-metadata-lock-investigation","type":"rich","author_name":"mita2db","provider_name":"Hatena Blog","published":"2025-09-11 21:17:46","title":"TiDB metadata lock \u3067 DDL \u304c\u5f85\u305f\u3055\u308c\u305f\u6642\u306e\u8abf\u67fb\u65b9\u6cd5","image_url":null,"provider_url":"https://hatena.blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fmita2db.hateblo.jp%2Fentry%2Ftidb-metadata-lock-investigation\" title=\"TiDB metadata lock \u3067 DDL \u304c\u5f85\u305f\u3055\u308c\u305f\u6642\u306e\u8abf\u67fb\u65b9\u6cd5 - mita2 database life\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","description":"\u524d\u63d0 \u672c\u30a8\u30f3\u30c8\u30ea\u30fc\u306f\u3001tidb_enable_metadata_lock \u304c ON \u3067\u3042\u308b\u3053\u3068\u3092\u524d\u63d0\u3068\u3057\u3066\u3044\u307e\u3059\u3002 mysql> SELECT @@transaction_isolation, @@tidb_enable_metadata_lock, @@version; +-------------------------+-----------------------------+--------------------+ | @@transaction_isolation | @@tidb_enable_metadata_lock | @@version | +-------------\u2026"}