yohei-a https://blog.hatena.ne.jp/yohei-a/ ablog https://yohei-a.hatenablog.jp/ MySQL SHOW ENGINE INNODB STATUS の History list length の見方をメモ。 mysql> show engine innodb status\G （中略） ------------ TRANSACTIONS ------------ Trx id counter 0 80157601 Purge done for trx's n:o <0 80154573 undo n:o <0 0 History list length 6 Total number of lock structs in row lock hash table 0 Trx id count… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fyohei-a.hatenablog.jp%2Fentry%2F20180303%2F1520072611" title="SHOW ENGINE INNODB STATUS の History list length - ablog" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> https://images-fe.ssl-images-amazon.com/images/I/51xbOwf5o2L._SL160_.jpg Hatena Blog https://hatena.blog 2018-03-03 19:23:31 rich https://yohei-a.hatenablog.jp/entry/20180303/1520072611 1.0 100%