Hm, yeah, I just tried it on my F18 system (kernel 3.9) and got the same error. Apparently this is a 2.6.x hack only, or maybe there is some other workaround for newer kernel versions that I’m not aware of.
Post: Choosing a MySQL HA Solution - Post-Webinar Q&A
June 7, 2013 By Leave a Comment
…’t try more than 2; the additional work that the kernel has to do in reordering TCP packets can actually result…
Post: How to fix your PRM cluster when upgrading to RHEL/CentOS 6.4
May 29, 2013 By 2 Comments
… boot… [ OK ] Checking Network Manager… [ OK ] Global setup… [ OK ] Loading kernel modules… [ OK ] Mounting configfs… [ OK ] Starting cman… [ OK ] Waiting for… boot… [ OK ] Checking Network Manager… [ OK ] Global setup… [ OK ] Loading kernel modules… [ OK ] Mounting configfs… [ OK ] Starting cman… [ OK ] Waiting for…
Comment: ZFS on Linux and MySQL
May 24, 2013 By 17 Comments
@JDempster: I could give the SSD to xfs also with Flashcache and the like. Don’t forget all these jbods have a raid controller write cache in front of them. I also did the Innodb tuning. @Nils: no fuse, direct kernel support. Look here: http://zfsonlinux.org/
Post: Virident vCache vs. FlashCache: Part 2
May 17, 2013 By 3 Comments
… use of the CentOS 6.2 kernel, 2.6.32-220, so that was the kernel in use for all of the…
Post: Virident vCache vs. FlashCache: Part 1
May 16, 2013 By 3 Comments
… preview release of Virident’s vCache software, which is a kernel module and set of utilities designed to provide functionality similar… install. FlashCache, on the other hand, requires building a separate kernel module in addition to whatever flash memory driver you’ve…
Comment: Percona Server 5.5.30 with TokuDB for MySQL
April 24, 2013 By 26 Comments
… that RHEL 6 having /sys/kernel/mm/redhat_transparent_hugepage/enabled. After issuing echo never > /sys/kernel/mm/redhat_transparent_hugepage/enabled…
Comment: Testing the Micron P320h
April 17, 2013 By 7 Comments
… 1, I suspect that it depends a lot on your kernel. There was a performance regression in XFS in the pre-CentOS 6.4 kernels which made EXT4 faster, but this was supposedly fixed in… XFS (on CentOS 6.4) crashes the box with a kernel panic – so the developers may have replaced one issue with…
Post: Memory allocators: MySQL performance improvements in Percona Server 5.5.30-30.2
April 15, 2013 By
… threads will get stuck on glibc/kernel syscalls, which will in turn result in contention on kernel_mutex (trx_sys->mutex in…
Post: trx descriptors: MySQL performance improvements in Percona Server 5.5.30-30.2
April 12, 2013 By 3 Comments
… major problem for MySQL scalability? The scan is performed under kernel_mutex (or trx_sys->mutex in 5.6) and that…
