0
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1answer
584 views

consequences of using “innodb_flush_method = O_DIRECT” without having a battery backed write cache? or on a KVM guest?

Mysql 5.5.29 Innodb- 128GB Ram - 32 cores - Raid 10 SSD. Our server which is a dedicated KVM guest on a 'baremetal' is hosting our heavy read-write DB server. Everything is file-per-table. ...
4
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3answers
976 views

Should we need to use Barriers on a production database (MySQL/InnoDB)?

Even though we are using a journaling filesystem (EXT3) with barrier enabled, is this still safer and recommended? e.g mount -o barrier=1 /dev/sda /mntpnt Reference: ...