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<p class=MsoNormal style='text-align:left;direction:ltr;unicode-bidi:embed'>Recently
I upgraded my bind machine to a new windows 2008 server web edition 32 bit with
2 E5420 quad core CPU's.<o:p></o:p></p>
<p class=MsoNormal style='text-align:left;direction:ltr;unicode-bidi:embed'>The
server is configured with about 7000 master zone files.<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'>Since
the upgrade, BIND hangs every 5-10 hours.<o:p></o:p></p>
<p class=MsoNormal style='text-align:left;direction:ltr;unicode-bidi:embed'>I
checked the logs and I saw these lines on the default log:<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'>5-<span
lang=HE dir=RTL style='font-family:"Arial","sans-serif"'>ιπε-2009
07:20:03.832</span><span dir=LTR></span><span dir=LTR></span> client: error:
UDP client handler shutting down due to fatal receive error: host unreachable<span
lang=HE dir=RTL style='font-family:"Arial","sans-serif"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-align:left;direction:ltr;unicode-bidi:embed'><span
dir=LTR></span><span dir=LTR></span>25-<span lang=HE dir=RTL style='font-family:
"Arial","sans-serif"'>ιπε-2009 07:20:03.832</span><span
dir=LTR></span><span dir=LTR></span> client: error: UDP client handler shutting
down due to fatal receive error: host unreachable<span lang=HE dir=RTL
style='font-family:"Arial","sans-serif"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-align:left;direction:ltr;unicode-bidi:embed'><span
dir=LTR></span><span dir=LTR></span>25-<span lang=HE dir=RTL style='font-family:
"Arial","sans-serif"'>ιπε-2009 07:20:03.832</span><span
dir=LTR></span><span dir=LTR></span> client: error: UDP client handler shutting
down due to fatal receive error: host unreachable<span lang=HE dir=RTL
style='font-family:"Arial","sans-serif"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-align:left;direction:ltr;unicode-bidi:embed'><span
dir=LTR></span><span dir=LTR></span>25-<span lang=HE dir=RTL style='font-family:
"Arial","sans-serif"'>ιπε-2009 07:20:03.832</span><span
dir=LTR></span><span dir=LTR></span> client: error: UDP client handler shutting
down due to fatal receive error: host unreachable<span lang=HE dir=RTL
style='font-family:"Arial","sans-serif"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-align:left;direction:ltr;unicode-bidi:embed'><span
dir=LTR></span><span dir=LTR></span>25-<span lang=HE dir=RTL style='font-family:
"Arial","sans-serif"'>ιπε-2009 07:20:03.832</span><span
dir=LTR></span><span dir=LTR></span> client: error: UDP client handler shutting
down due to fatal receive error: host unreachable<span lang=HE dir=RTL
style='font-family:"Arial","sans-serif"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-align:left;direction:ltr;unicode-bidi:embed'><span
dir=LTR></span><span dir=LTR></span>25-<span lang=HE dir=RTL style='font-family:
"Arial","sans-serif"'>ιπε-2009 07:20:03.832</span><span
dir=LTR></span><span dir=LTR></span> client: error: UDP client handler shutting
down due to fatal receive error: host unreachable<span lang=HE dir=RTL
style='font-family:"Arial","sans-serif"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-align:left;direction:ltr;unicode-bidi:embed'><span
dir=LTR></span><span dir=LTR></span>25-<span lang=HE dir=RTL style='font-family:
"Arial","sans-serif"'>ιπε-2009 07:20:03.833</span><span
dir=LTR></span><span dir=LTR></span> client: error: UDP client handler shutting
down due to fatal receive error: host unreachable<span lang=HE dir=RTL
style='font-family:"Arial","sans-serif"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-align:left;direction:ltr;unicode-bidi:embed'><span
dir=LTR></span><span dir=LTR></span>25-<span lang=HE dir=RTL style='font-family:
"Arial","sans-serif"'>ιπε-2009 07:20:03.833</span><span
dir=LTR></span><span dir=LTR></span> client: error: UDP client handler shutting
down due to fatal receive error: host unreachable<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
the service hangs, all the queries returned time out and there is no answers
anymore from the dns server.<o:p></o:p></p>
<p class=MsoNormal style='text-align:left;direction:ltr;unicode-bidi:embed'>"rndc
status" tells me that the service is up and running and zone transfers are
continued as usual.<o:p></o:p></p>
<p class=MsoNormal style='text-align:left;direction:ltr;unicode-bidi:embed'>Only
the DNS queries are stopped working and returning time out.<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
idea?<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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