dscacheutil shows an empty cache?
5,234
From the machines I have here it looks like a normal profile
Machine 1
Procedure Cache Hits Cache Misses External Calls
------------------ ---------- ------------ --------------
getpwnam 1714 46 1760
getpwuid 5746 94 5840
getgrnam 129 55 184
getgrgid 7 24 31
getservbyname 34238 72 98
getservbyport 0 10 10
getprotobyname 71 8 79
getprotobynumber 15 0 15
getfsent 0 0 11
getnetent 0 0 1
getnetbyname 0 2 2
getnetbyaddr 1 4 5
gethostbyname 4 34789 26
gethostbyaddr 0 366 366
gethostbyname_service 0 0 34767
_flushcache 0 0 5
Machine 2
Statistics by procedure:
Procedure Cache Hits Cache Misses External Calls
------------------ ---------- ------------ --------------
getpwnam 33929 1530 35459
getpwuid 20118 1171 21289
getgrnam 2649 1314 3963
getgrgid 118 83 201
getservbyname 1543 642 1599
getprotobyname 42 70 112
getprotobynumber 45 33 78
getfsent 0 0 19
getnetent 0 0 6
getnetbyname 8 4 12
getnetbyaddr 0 34 34
gethostbyname 0 9194 8021
gethostbyaddr 0 156 156
gethostbyname_service 0 0 1173
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Comments
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Dale Reidy almost 2 years
Is it normal for dscacheutil to return an (almost) empty cache? I tried the same -cachedump command on 10.5.8 and I got a list of internal and external hosts as I'd expected to have seen.
The 1.5~ million cache misses for gethostbyname was after firing up a FileMaker database that opens in sub 30s on 10.5.8 but takes over 5 minutes in 10.6.6.
dscacheutil -statistics
Overall Statistics: Average Call Time - 0.001025 Cache Hits - 1533905 Cache Misses - 3063347 Total External Calls - 1539214 Statistics by procedure: Procedure Cache Hits Cache Misses External Calls ------------------ ---------- ------------ -------------- getpwnam 542 129 671 getpwuid 6242 510 6752 getgrnam 106 175 281 getgrgid 6 32 38 getservbyname 1527001 661 63 getfsent 0 0 193 getnetbyaddr 0 35 35 gethostbyname 8 1530311 1950 gethostbyaddr 0 861 861 gethostbyname_service 0 0 1528369sudo dscacheutil -cachedump -entries
DirectoryService Cache Overview: AAAA Queries - Disabled (link-local IPv6 addresses) Cache Size - 8 Entry count by category: Group - 3 Service - 1 User - 4 Cache entries (ordered as stored in the cache): Category Best Before Last Access Hits Refs TTL Neg DS Node ---------- ------------------ ------------------ -------- ------ -------- ----- --------- User 01/26/11 11:08:31 01/26/11 10:45:38 124 1 3600 /Local/Default Key: pw_name:dale Key: pw_uid:502 Group 01/26/11 11:09:28 01/26/11 10:09:28 0 1 3600 /Local/Default Key: gr_uuid:ABCDEFAB-CDEF-ABCD-EFAB-CDEF00000009 Key: gr_gid:9 Key: gr_name:procmod Group 01/26/11 11:09:28 01/26/11 10:09:28 0 1 3600 /Local/Default Key: gr_name:procview Key: gr_uuid:ABCDEFAB-CDEF-ABCD-EFAB-CDEF00000008 Key: gr_gid:8 Service 01/26/11 11:09:45 01/26/11 10:44:38 1 1 3600 /BSD/local Key: s_name:ipp Key: s_name:ipp s_proto:udp Key: s_port:631 s_proto:udp User 01/26/11 11:09:46 01/26/11 10:43:34 21 1 3600 /Local/Default Key: pw_name:spotlight Key: pw_name:_spotlight Key: pw_uid:89 Group 01/26/11 11:43:53 01/26/11 10:43:53 0 1 3600 /Local/Default Key: gr_name:tty Key: gr_gid:4 Key: gr_uuid:ABCDEFAB-CDEF-ABCD-EFAB-CDEF00000004 User 01/26/11 11:44:38 01/26/11 10:44:38 0 1 3600 /Local/Default Key: pw_name:root Key: pw_uid:0 User 01/26/11 11:44:38 01/26/11 10:44:39 1 1 3600 /Local/Default Key: pw_gecos:Unprivileged User Key: pw_name:nobody Key: pw_uid:-2 -
lynxman over 13 yearsMac OS X 10.6.6 on both machines and no host records either, but that's due to Mac OS X 10.6.x separating the DNS cache from the general DS database, for that now you should check the internal DB of mDNSResponder, you can get a full list of the cache hosts there by running
sudo killall -INFO mDNSResponder, all the info will be dumped into /var/log/system.log
