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Displaying posts with tag: session table (reset)

vBulletin, session table is InnoDB
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In large vBulletin forum we had strange problem in memory table "session", we've 25M post, 1.7M user, 20K online user.So we change engine of session table to InnoDB and set configuration of innoDB as follow (be careful this configuration is not proper for other tables because this is good in performance but bad in crash and recovery, and data reliability)innodb_data_home_dir = /dev/shm/mysql/
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