-Steve
> --
> You received this message because you are subscribed to the Google Groups
> "Percona Dev" group.
> To view this discussion on the web visit
> https://groups.google.com/d/msg/percona-dev/-/Umz29daNntwJ.
> To post to this group, send email to perco...@googlegroups.com.
> To unsubscribe from this group, send email to
> percona-dev...@googlegroups.com.
> For more options, visit this group at
> http://groups.google.com/group/percona-dev?hl=en.
>
The message is more a warning than an error. Apparently O_DIRECT is not
supported by gluster. So InnoDB first tries to use it, and falls back to
a buffered IO if that fails.
So yes, you can ignore those messages.