Bent Terp wrote:
On 1/24/08, Karanbir Singh <mail-lists@xxxxxxxxx> wrote:Bent Terp wrote:Hi all! Just a word of warning: after updating a few of our x86_64 based web frontend boxes to the new kernel, we began to get weird MySQL timeouts. The problem went away again when we downgraded to the previous kernel-2.6.18-53.1.6.el5.x86_64.rpmA bit more info / context would be nice !We upgraded our web front servers to kernel 2.6.18-53.1.6, and suddenly sites wouldn't load. It seemed to be that the connections from php to the backend sql servers timed out, so we immediately downgraded back to 2.6.18-53.1.4 Now that we've had more time to look at the problem, it is not related to mysql, sorry about that. Rather, it looks as if the set of nfs patches do not agree with our EMC Cellera NAS server. Backing out that bunch and rebuilding makes the problem go away. The patches that gives us problems, results in a kernel which makes something like 2000 times more "NFS V3 LOOKUP Call" and "NFS V3 LOOKUP Reply" than without. Has something changed with regard to the mount options? We use (rw,noatime,rsize=8192,wsize=8192,hard,udp,context="system_u:object_r:httpd_sys_content_t:s0) which has worked fine until now.
I am trying to duplicate your options ... and noatime is not a valid option.Could you please double check the /etc/export options again so I can try to duplicate the issue.
Using my standard /etc/exports on 2 i686 test platforms I have no problems at all.
Here are the options I used on my test: (rw,insecure,sync,no_subtree_check) Thanks, Johnny Hughes
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