DNS refuses conections on Redhat 6.1

[Alex litvak]

Jan 30 08:42:38 develop1 named[27175]: USAGE 949243358 949000139
CPU=111.2u/67.93s CHILDCPU=0u/0s
Jan 30 08:42:38 develop1 named[27175]: NSTATS 949243358 949000139 0=1
A=314922 NS=3 SOA=6582 PTR=405600 MX=6299 SRV=67 AXFR=18 ANY=25783
Jan 30 08:42:38 develop1 named[27175]: XSTATS 949243358 949000139
RR=13081 RNXD=875 RFwdR=7093 RDupR=775 RFail=1854 RFErr=0 RErr=0
RAXFR=18 RLame=0 ROpts=0 SSysQ=3241 SAns=745492 SFwdQ=9828 SDupQ=2210
SErr=6 RQ=759275 RIQ=0 RFwdQ=0 RDupQ=3381 RTCP=810 SFwdR=7093 SFail=0
SFErr=0 SNaAns=119561 SNXD=326052
Jan 30 08:42:38 develop1 named[27175]: Cleaned cache of 282 RRsets
Jan 30 08:42:38 develop1 named[27175]: ns_req:
sendto([192.168.128.104].3265): Connection refused
Jan 30 08:42:38 develop1 named[27175]: ns_req:
sendto([192.168.119.135].1065): Connection refused
Jan 30 08:42:38 develop1 named[27175]: ns_req:
sendto([192.168.119.214].2166): Connection refused
Jan 30 08:42:38 develop1 named[27175]: ns_req:
sendto([192.168.119.40].1576): Connection refused
Jan 30 08:42:38 develop1 named[27175]: ns_req:
sendto([192.168.119.33].1429): Connection refused
Jan 30 08:42:38 develop1 named[27175]:
stream_getlen([192.168.119.216].2028): Broken pipe
Jan 30 08:42:38 develop1 named[27175]:
stream_getlen([192.168.128.22].2757): Broken pipe
Jan 30 08:42:38 develop1 named[27175]:
stream_getlen([192.168.128.22].2758): Broken pipe
Jan 30 08:42:38 develop1 named[27175]: ns_req:
sendto([192.168.136.101].4081): Connection refused
Jan 30 08:42:38 develop1 named[27175]:
stream_getlen([192.168.119.216].2070): Broken pipe
named shutting down

I am not sure about the last messages but others above would show up
only after I restart DNS.
I had it to happen several times on  8.2.2_P5 and earlier versions as
well.  Named seems to be running but
is rejecting all queries and client waits and times out to slave server.

Does anybody have a clue?

Question on side: Is there a way to decrease time out period so client
would switch to secondary
server faster?

TIA

Alex Litvak
alitvak at wwa.com
alexl at webley.com