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work on prefetch: store the updated results in the cache.

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git-svn-id: file:///svn/unbound/trunk@1954 be551aaa-1e26-0410-a405-d3ace91eadb9
This commit is contained in:
Wouter Wijngaards
2010-01-08 15:59:36 +00:00
parent 9a9df2478d
commit 5b0fd59e76
14 changed files with 284 additions and 24 deletions
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testdata/iter_prefetch.rpl
Vendored
+225
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; config options
server:
target-fetch-policy: "0 0 0 0 0"
prefetch: "yes"
stub-zone:
name: "."
stub-addr: 193.0.14.129 # K.ROOT-SERVERS.NET.
CONFIG_END
SCENARIO_BEGIN Test resolver prefetch of almost expired data
; K.ROOT-SERVERS.NET.
RANGE_BEGIN 0 100
ADDRESS 193.0.14.129
ENTRY_BEGIN
MATCH opcode qtype qname
ADJUST copy_id
REPLY QR NOERROR
SECTION QUESTION
. IN NS
SECTION ANSWER
. IN NS K.ROOT-SERVERS.NET.
SECTION ADDITIONAL
K.ROOT-SERVERS.NET. IN A 193.0.14.129
ENTRY_END
ENTRY_BEGIN
MATCH opcode qtype qname
ADJUST copy_id
REPLY QR NOERROR
SECTION QUESTION
www.example.com. IN A
SECTION AUTHORITY
com. IN NS a.gtld-servers.net.
SECTION ADDITIONAL
a.gtld-servers.net. IN A 192.5.6.30
ENTRY_END
RANGE_END
; a.gtld-servers.net.
RANGE_BEGIN 0 100
ADDRESS 192.5.6.30
ENTRY_BEGIN
MATCH opcode qtype qname
ADJUST copy_id
REPLY QR NOERROR
SECTION QUESTION
com. IN NS
SECTION ANSWER
com. IN NS a.gtld-servers.net.
SECTION ADDITIONAL
a.gtld-servers.net. IN A 192.5.6.30
ENTRY_END
ENTRY_BEGIN
MATCH opcode qtype qname
ADJUST copy_id
REPLY QR NOERROR
SECTION QUESTION
www.example.com. IN A
SECTION AUTHORITY
example.com. IN NS ns.example.com.
SECTION ADDITIONAL
ns.example.com. IN A 1.2.3.4
ENTRY_END
RANGE_END
; ns.example.com.
RANGE_BEGIN 0 40
ADDRESS 1.2.3.4
ENTRY_BEGIN
MATCH opcode qtype qname
ADJUST copy_id
REPLY QR NOERROR
SECTION QUESTION
example.com. IN NS
SECTION ANSWER
example.com. IN NS ns.example.com.
SECTION ADDITIONAL
ns.example.com. IN A 1.2.3.4
ENTRY_END
ENTRY_BEGIN
MATCH opcode qtype qname
ADJUST copy_id
REPLY QR NOERROR
SECTION QUESTION
www.example.com. IN A
SECTION ANSWER
www.example.com. 3600 IN A 10.20.30.40
SECTION AUTHORITY
example.com. 3600 IN NS ns.example.com.
SECTION ADDITIONAL
ns.example.com. 3600 IN A 1.2.3.4
ENTRY_END
RANGE_END
; ns.example.com.
RANGE_BEGIN 50 100
ADDRESS 1.2.3.4
ENTRY_BEGIN
MATCH opcode qtype qname
ADJUST copy_id
REPLY QR NOERROR
SECTION QUESTION
example.com. IN NS
SECTION ANSWER
example.com. IN NS ns.example.com.
SECTION ADDITIONAL
ns.example.com. IN A 1.2.3.4
ENTRY_END
ENTRY_BEGIN
MATCH opcode qtype qname
ADJUST copy_id
REPLY QR NOERROR
SECTION QUESTION
www.example.com. IN A
SECTION ANSWER
www.example.com. 3600 IN A 10.20.30.40
SECTION AUTHORITY
example.com. 3600 IN NS ns.example.com.
SECTION ADDITIONAL
ns.example.com. 3600 IN A 1.2.3.4
ENTRY_END
RANGE_END
STEP 1 QUERY
ENTRY_BEGIN
REPLY RD
SECTION QUESTION
www.example.com. IN A
ENTRY_END
; recursion happens here.
STEP 10 CHECK_ANSWER
ENTRY_BEGIN
MATCH all ttl
REPLY QR RD RA NOERROR
SECTION QUESTION
www.example.com. IN A
SECTION ANSWER
www.example.com. 3600 IN A 10.20.30.40
SECTION AUTHORITY
example.com. 3600 IN NS ns.example.com.
SECTION ADDITIONAL
ns.example.com. 3600 IN A 1.2.3.4
ENTRY_END
; after 1800 secs still the cached answer
STEP 20 TIME_PASSES ELAPSE 1800
STEP 30 QUERY
ENTRY_BEGIN
REPLY RD
SECTION QUESTION
www.example.com. IN A
ENTRY_END
; recursion happens here.
STEP 40 CHECK_ANSWER
ENTRY_BEGIN
MATCH all ttl
REPLY QR RD RA NOERROR
SECTION QUESTION
www.example.com. IN A
SECTION ANSWER
www.example.com. 1800 IN A 10.20.30.40
SECTION AUTHORITY
example.com. 1800 IN NS ns.example.com.
SECTION ADDITIONAL
ns.example.com. 1800 IN A 1.2.3.4
ENTRY_END
; after 1440 we are 360 seconds before the expiry
; (the authority changes behind the scenes to detect new lookup)
STEP 50 TIME_PASSES ELAPSE 1440
STEP 60 QUERY
ENTRY_BEGIN
REPLY RD
SECTION QUESTION
www.example.com. IN A
ENTRY_END
; recursion happens here.
STEP 70 CHECK_ANSWER
ENTRY_BEGIN
MATCH all ttl
REPLY QR RD RA NOERROR
SECTION QUESTION
www.example.com. IN A
SECTION ANSWER
www.example.com. 360 IN A 10.20.30.40
SECTION AUTHORITY
example.com. 360 IN NS ns.example.com.
SECTION ADDITIONAL
ns.example.com. 360 IN A 1.2.3.4
ENTRY_END
STEP 80 TRAFFIC
; let traffic flow for prefetch to happen
; above a cache reply with 10% of the original TTL
; but the actual cache is changed, try to get that
STEP 120 QUERY
ENTRY_BEGIN
REPLY RD
SECTION QUESTION
www.example.com. IN A
ENTRY_END
; recursion happens here.
STEP 130 CHECK_ANSWER
ENTRY_BEGIN
MATCH all ttl
REPLY QR RD RA NOERROR
SECTION QUESTION
www.example.com. IN A
SECTION ANSWER
www.example.com. 3600 IN A 10.20.30.40
SECTION AUTHORITY
example.com. 3600 IN NS ns.example.com.
SECTION ADDITIONAL
ns.example.com. 3600 IN A 1.2.3.4
ENTRY_END
SCENARIO_END