Aug 2012 16:32:51 -0500

Everyone,

I have two x86_64 servers with CentOS 6.3 that seem to have some difficulty with the last version of bind :

32:bind-9.8.2-0.10.rc1.el6_3.2.x86_64

When I run htop I am getting a CPU usage of 70 to 80% all of the time. I am not seeing problems identified in the log files on either machine.

This may have been present before the update of 9.8.2.0, but I certainly did not notice it. Has anyone else had this problem.

Any solutions??

Greg Ennis -----------------------------------------------------------------------------

I have continued to have problems with bind's consumption of CPU time. When I run "strace -p PID#" on the affected PID I get the following that is generated over and over. This is occurring on both machines. I am not sure what this means at this point. If any of you can offer assistance it would be greatly appreciated.

Thanks,

Greg

futex(0x7ff2ae5e808c, FUTEX_WAKE_OP_PRIVATE, 1, 1, 0x7ff2ae5e8088, {FUTEX_OP_SET, 0, FUTEX_OP_CMP_GT, 1}) = 1 futex(0x7ff2ae5e8028, FUTEX_WAKE_PRIVATE, 1) = 1 futex(0x7ff2ae5e9028, FUTEX_WAKE_PRIVATE, 1) = 0 futex(0x7ff2ae5e9078, FUTEX_WAKE_PRIVATE, 1) = 1 futex(0x7ff2ae5e907c, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 1738218731, {1344789447, 283018000}, ffffffff) = -1 EAGAIN (Resource temporarily unavailable) gettimeofday({1344788651, 464093}, NULL) = 0 futex(0x7ff2ae5e808c, FUTEX_WAKE_OP_PRIVATE, 1, 1, 0x7ff2ae5e8088, {FUTEX_OP_SET, 0, FUTEX_OP_CMP_GT, 1}) = 1

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Here is the fix for anyone else having the same problem :

Take a look at this link for some background info : https://bugzilla.redhat.com/show_bug.cgi?id=709205

My problem was fixed by doing the following :

chown -R named.named /var/named/chroot

restorecon -R /var/named/chroot/

Greg