This is a discussion on bind 9.2.4 --new queries take > 4 seconds within the Bind Users forums, part of the DNS and Related Forums category; This is on SuSE 9.2, though it happened on 9.1, too. # dig +stats iii.com ; <<>&...
|
|||||||
| FAQ | Members List | Calendar | Search | Today's Posts | Mark Forums Read |
|
|||
|
This is on SuSE 9.2, though it happened on 9.1, too.
# dig +stats iii.com ; <<>> DiG 9.2.4 <<>> +stats iii.com ;; global options: printcmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 25596 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 4, ADDITIONAL: 0 ;; QUESTION SECTION: ;iii.com. IN A ;; ANSWER SECTION: iii.com. 43200 IN A 205.227.88.2 ;; AUTHORITY SECTION: iii.com. 43200 IN NS dnsauth1.sys.gtei.net. iii.com. 43200 IN NS dnsauth2.sys.gtei.net. iii.com. 43200 IN NS dnsauth3.sys.gtei.net. iii.com. 43200 IN NS vega.iii.com. >>>;; Query time: 4592 msec ;; SERVER: 67.121.255.169#53(67.121.255.169) ;; WHEN: Fri Nov 5 15:43:48 2004 ;; MSG SIZE rcvd: 141 # Almost 4.6 seconds. After the first time, it's fast (a few ms). stracing (-f) of named is below. Notice the two 1.99 second delays at lines 37 and 76: 1 [pid 1202] 0.001989 futex(0x8093fb0, FUTEX_WAKE, 1 <unfinished ...> 2 [pid 1200] 0.002018 <... futex resumed> ) = 0 3 [pid 1202] 0.000013 <... futex resumed> ) = 1 4 [pid 1200] 0.001969 futex(0x8093fac, FUTEX_WAIT, 2, NULL <unfinished ...> 5 [pid 1202] 0.000018 futex(0x8093fac, FUTEX_WAKE, 1 <unfinished ...> 6 [pid 1200] 0.001977 <... futex resumed> ) = -1 EAGAIN (Resource temporarily unavailable) 7 [pid 1202] 0.000020 <... futex resumed> ) = 0 8 [pid 1200] 0.001982 futex(0x8093fac, FUTEX_WAKE, 1 <unfinished ...> 9 [pid 1202] 0.000016 select(39, [5 20 21 22 23 25 26 27 28 29 30 31 32 33 34 35 36 37], [], NULL, NULL <unfinished ...> 10 [pid 1200] 0.001988 <... futex resumed> ) = 0 11 [pid 1200] 0.001993 futex(0x8093f78, FUTEX_WAKE, 1) = 0 12 [pid 1200] 0.004008 recvmsg(24, {msg_name(16)={sa_family=AF_INET, sin_port=htons(32811), sin_addr=inet_addr("67.121.255.169")}, msg_iov(1)=[{""..., 4096}], msg_controllen=20, msg_control=0x80d0578, , msg_flags=0}, 0) = 25 13 [pid 1200] 0.003996 gettimeofday({1099698223, 980864}, NULL) = 0 14 [pid 1200] 0.003090 gettimeofday({1099698223, 983864}, NULL) = 0 15 [pid 1200] 0.001953 gettimeofday({1099698223, 985866}, NULL) = 0 16 [pid 1200] 0.001996 recvmsg(24, 0xb7bee940, 0) = -1 EAGAIN (Resource temporarily unavailable) 17 [pid 1200] 0.001957 write(6, "\30\0\0\0\375\377\377\377", 8 <unfinished ...> 18 [pid 1202] 0.001026 <... select resumed> ) = 1 (in [5]) 19 [pid 1200] 0.000057 <... write resumed> ) = 8 20 [pid 1202] 0.000018 read(5, "\30\0\0\0\375\377\377\377", 8) = 8 21 [pid 1202] 0.000064 read(5, 0xb6bec878, 8) = -1 EAGAIN (Resource temporarily unavailable) 22 [pid 1202] 0.000035 select(39, [5 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37], [], NULL, NULL <unfinished ...> 23 [pid 1200] 0.000810 gettimeofday({1099698223, 991860}, NULL) = 0 24 [pid 1200] 0.002003 gettimeofday({1099698223, 993886}, NULL) = 0 25 [pid 1200] 0.002456 gettimeofday({1099698223, 995860}, NULL) = 0 26 [pid 1200] 0.001585 futex(0x809415c, FUTEX_WAKE, 1) = 1 27 [pid 1201] 0.001945 <... futex resumed> ) = 0 28 [pid 1200] 0.000033 gettimeofday( <unfinished ...> 29 [pid 1201] 0.000969 gettimeofday( <unfinished ...> 30 [pid 1200] 0.000018 <... gettimeofday resumed> {1099698223, 999882}, NULL) = 0 31 [pid 1200] 0.000092 sendmsg(35, {msg_name(28)={sa_family=AF_INET6, sin6_port=htons(53), inet_pton(AF_INET6, "2001:503:a83e::2:30", &sin6_addr), sin6_flowinfo=0, sin6_scope_id=0}, msg_iov(1)=[{"\364\372\0\20\0\1\0\0\0\0\0\1\3iii\3com\0\0\1\0\ 1\0\0)"..., 36}], msg_controllen=0, msg_flags=0}, 0) = -1 ENETUNREACH (Network is unreachable) 32 [pid 1200] 0.000106 futex(0x8093fb0, FUTEX_WAIT, 2011, NULL <unfinished ...> 33 [pid 1201] 0.000783 <... gettimeofday resumed> {1099698224, 860}, NULL) = 0 34 [pid 1201] 0.001009 futex(0x8094128, FUTEX_WAKE, 1) = 0 35 [pid 1201] 0.001985 clock_gettime(CLOCK_REALTIME, {1099698224, 4859000}) = 0 36 [pid 1201] 0.002009 futex(0x809415c, FUTEX_WAIT, 1691, {1, 991001000}) = -1 ETIMEDOUT (Connection timed out) 37 [pid 1201] 1.996417 gettimeofday({1099698226, 2469}, NULL) = 0 38 [pid 1201] 0.002184 futex(0x8093fb0, FUTEX_WAKE, 1 <unfinished ...> 39 [pid 1200] 0.002008 <... futex resumed> ) = 0 40 [pid 1201] 0.000012 <... futex resumed> ) = 1 41 [pid 1200] 0.001981 futex(0x8093fac, FUTEX_WAIT, 2, NULL <unfinished ...> 42 [pid 1201] 0.000018 futex(0x8093fac, FUTEX_WAKE, 1 <unfinished ...> 43 [pid 1200] 0.002035 <... futex resumed> ) = -1 EAGAIN (Resource temporarily unavailable) 44 [pid 1201] 0.000020 <... futex resumed> ) = 0 45 [pid 1200] 0.001924 futex(0x8093fac, FUTEX_WAKE, 1 <unfinished ...> 46 [pid 1201] 0.000016 futex(0x8094128, FUTEX_WAKE, 1 <unfinished ...> 47 [pid 1200] 0.001990 <... futex resumed> ) = 0 48 [pid 1201] 0.000012 <... futex resumed> ) = 0 49 [pid 1200] 0.002036 futex(0x8093f78, FUTEX_WAKE, 1 <unfinished ...> 50 [pid 1201] 0.000018 clock_gettime(CLOCK_REALTIME, <unfinished ...> 51 [pid 1200] 0.001928 <... futex resumed> ) = 0 52 [pid 1201] 0.000012 <... clock_gettime resumed> {1099698226, 17498000}) = 0 53 [pid 1200] 0.002035 gettimeofday( <unfinished ...> 54 [pid 1201] 0.000016 futex(0x809415c, FUTEX_WAIT, 1693, {18, 699694000} <unfinished ...> 55 [pid 1200] 0.001951 <... gettimeofday resumed> {1099698226, 21465}, NULL) = 0 56 [pid 1200] 0.001985 gettimeofday({1099698226, 25478}, NULL) = 0 57 [pid 1200] 0.002023 futex(0x809415c, FUTEX_WAKE, 1 <unfinished ...> 58 [pid 1201] 0.000982 <... futex resumed> ) = 0 59 [pid 1200] 0.000011 <... futex resumed> ) = 1 60 [pid 1201] 0.000016 futex(0x8094158, FUTEX_WAIT, 2, NULL <unfinished ...> 61 [pid 1200] 0.000971 futex(0x8094158, FUTEX_WAKE, 1 <unfinished ...> 62 [pid 1201] 0.001003 <... futex resumed> ) = 0 63 [pid 1200] 0.000012 <... futex resumed> ) = 1 64 [pid 1201] 0.000015 futex(0x8094158, FUTEX_WAKE, 1) = 0 65 [pid 1201] 0.000024 futex(0x8094128, FUTEX_WAIT, 2, NULL <unfinished ...> 66 [pid 1200] 0.000947 futex(0x8094128, FUTEX_WAKE, 1 <unfinished ...> 67 [pid 1201] 0.000996 <... futex resumed> ) = 0 68 [pid 1200] 0.000011 <... futex resumed> ) = 1 69 [pid 1201] 0.000016 gettimeofday({1099698226, 31509}, NULL) = 0 70 [pid 1201] 0.000036 futex(0x8094128, FUTEX_WAKE, 1) = 0 71 [pid 1201] 0.000022 clock_gettime(CLOCK_REALTIME, {1099698226, 31567000}) = 0 72 [pid 1201] 0.000029 futex(0x809415c, FUTEX_WAIT, 1695, {1, 993911000} <unfinished ...> 73 [pid 1200] 0.000900 gettimeofday({1099698226, 33462}, NULL) = 0 74 [pid 1200] 0.002051 sendmsg(35, {msg_name(28)={sa_family=AF_INET6, sin6_port=htons(53), inet_pton(AF_INET6, "2001:503:231d::2:30", &sin6_addr), sin6_flowinfo=0, sin6_scope_id=0}, msg_iov(1)=[{"\372}\0\20\0\1\0\0\0\0\0\1\3iii\3com\0\0\1\0\1\0 \0)\10"..., 36}], msg_controllen=0, msg_flags=0}, 0) = -1 ENETUNREACH (Network is unreachable) 75 [pid 1200] 0.001959 futex(0x8093fb0, FUTEX_WAIT, 2013, NULL <unfinished ...> 76 [pid 1201] 1.992584 <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out) 77 [pid 1201] 0.002051 gettimeofday({1099698228, 32072}, NULL) = 0 78 [pid 1201] 0.003950 futex(0x8093fb0, FUTEX_WAKE, 1 <unfinished ...> 79 [pid 1200] 0.002006 <... futex resumed> ) = 0 80 [pid 1201] 0.000012 <... futex resumed> ) = 1 81 [pid 1200] 0.001983 futex(0x8093fac, FUTEX_WAIT, 2, NULL <unfinished ...> 82 [pid 1201] 0.000019 futex(0x8093fac, FUTEX_WAKE, 1 <unfinished ...> Here's what I've tried: 1. rebuilt named with --disable-ipv6, made no difference -- the ipv6 address made me suspicious, but it's in a different process 2. options in named.conf: options { directory "/var/lib/named"; query-source port 53; }; 3. have up-to-date root hints file (ie, mine is the same as ftp://ftp.internic.net/domain/named.root) Ideas, anyone? I'm at wits end on this... thanks. Kevin Layer |