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<p class=MsoNormal style='text-align:left;direction:ltr;unicode-bidi:embed'>Hi,<o:p></o:p></p>
<p class=MsoNormal style='text-align:left;direction:ltr;unicode-bidi:embed'><o:p> </o:p></p>
<p class=MsoNormal style='text-align:left;direction:ltr;unicode-bidi:embed'>After
a couple of hours, performance of bind 9.6.1 suddenly drops. While the server
remains responsive, the response time increases, the rate of the failed queries
increases, and CPU/load average usage increases. Restarting named solves the
problem.<o:p></o:p></p>
<p class=MsoNormal style='text-align:left;direction:ltr;unicode-bidi:embed'><o:p> </o:p></p>
<p class=MsoNormal style='text-align:left;direction:ltr;unicode-bidi:embed'>I
cannot find anything useful in the logs, but a quick search in this mailing
list archive shows that other users reported somewhat similar problems with
this version of BIND :(<o:p></o:p></p>
<p class=MsoNormal style='text-align:left;direction:ltr;unicode-bidi:embed'><o:p> </o:p></p>
<p class=MsoNormal style='text-align:left;direction:ltr;unicode-bidi:embed'>The
operating system is Linux (Linux ns1 2.6.18-128.el5 #1 SMP Wed Dec 17 11:41:38
EST 2008 x86_64 x86_64 x86_64 GNU/Linux) , Red Hat Enterprise Linux Server
release 5.3 (Tikanga).<o:p></o:p></p>
<p class=MsoNormal style='text-align:left;direction:ltr;unicode-bidi:embed'><o:p> </o:p></p>
<p class=MsoNormal style='text-align:left;direction:ltr;unicode-bidi:embed'>Output
of named –V:<o:p></o:p></p>
<p class=MsoNormal style='text-align:left;direction:ltr;unicode-bidi:embed'>BIND
9.6.1 built with '--enable-threads' '--enable-largefile' '--prefix=/usr/local'<o:p></o:p></p>
<p class=MsoNormal style='text-align:left;direction:ltr;unicode-bidi:embed'><o:p> </o:p></p>
<p class=MsoNormal style='text-align:left;direction:ltr;unicode-bidi:embed'>/usr/local/sbin/named:
ELF 64-bit LSB executable, AMD x86-64, version 1 (SYSV), for GNU/Linux 2.6.9,
dynamically linked (uses shared libs), for GNU/Linux 2.6.9, not stripped<o:p></o:p></p>
<p class=MsoNormal style='text-align:left;direction:ltr;unicode-bidi:embed'><o:p> </o:p></p>
<p class=MsoNormal style='text-align:left;direction:ltr;unicode-bidi:embed'>It
is important to state that we just upgraded from 9.4.3-P2.<o:p></o:p></p>
<p class=MsoNormal style='text-align:left;direction:ltr;unicode-bidi:embed'><o:p> </o:p></p>
<p class=MsoNormal style='text-align:left;direction:ltr;unicode-bidi:embed'>Any
ideas?<o:p></o:p></p>
<p class=MsoNormal style='text-align:left;direction:ltr;unicode-bidi:embed'><o:p> </o:p></p>
<p class=MsoNormal style='text-align:left;direction:ltr;unicode-bidi:embed'><o:p> </o:p></p>
<p class=MsoNormal style='text-align:left;direction:ltr;unicode-bidi:embed'><o:p> </o:p></p>
<p class=MsoNormal style='text-align:left;direction:ltr;unicode-bidi:embed'><o:p> </o:p></p>
<p class=MsoNormal style='text-align:left;direction:ltr;unicode-bidi:embed'><o:p> </o:p></p>
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