Once upon a time, Steven Tardy sjt5atra@gmail.com said:
On Aug 25, 2016, at 1:43 PM, Chris Adams linux@cmadams.net wrote:
named-sdb (pulling domain records from MySQL), which is segfaulting randomly
named-sdb used to be(~7+ years ago) single threaded only and would crash if threads were enabled. Did you change named to NOT thread? Does named-sdb still do single threaded only?
I'm just using it "out of the box" from the CentOS 7 bind-sdb RPM.
It was running okay, but the system hadn't been updated in a while (again, internal system), and after it was updated this week, named started crashing. I don't know if it's a problem on the BIND side or the MariaDB side - both were updated:
bind-sdb: 9.9.4-14.el7_0.1 -> 9.9.4-29.el7_2.3 mariadb-libs: 5.5.40-2.el7_0 -> 5.5.50-1.el7_2
Given the changes in bind-sdb are fairly minor (CVE patches), while mariadb-libs rebased to a new release (granted, minor version change), I'm more inclined to think that's where the problem lies, although it could just be a combination of the two.
Now that I think about it though - the VM running this was also updated from 1 CPU core to 2, so named-sdb probably went from one thread to two... maybe you're right. I'll check that out.