bzp2010 commented on issue #10896:
URL: https://github.com/apache/apisix/issues/10896#issuecomment-2233814511
@ShenFeng312 I don't know what your DNS server is returning to cause the
incorrect resolving behavior.
It would be nice if you can provide a full log snippet like this (error log
level needs to be set to info):
```
[lua] client.lua:1133: resolve(): resolve www.baidu.com nil null null null,
client: 127.0.0.1, server: _, request: "GET /test HTTP/1.1", host:
"127.0.0.1:9081"
[lua] client.lua:642: parseAnswer(): parseAnswer
www.baidu.com.test.svc.cluster.local 1 {"errcode":3,"errstr":"name error"}
{"1":{"qname":"(short)www.baidu.com","msg":["cache-miss"]},"2":{"qtype":1,"qname":"www.baidu.com.test.svc.cluster.local","msg":["cache-miss","scheduled","querying"]},"(short)www.baidu.com:nil":1,"www.baidu.com.test.svc.cluster.local:1":2},
context: ngx.timer, client: 127.0.0.1, server: 0.0.0.0:9081
[lua] client.lua:642: parseAnswer(): parseAnswer
www.baidu.com.svc.cluster.local 1 {"errcode":3,"errstr":"name error"}
{"1":{"qname":"(short)www.baidu.com","msg":["cache-miss"]},"2":{"qtype":1,"qname":"www.baidu.com.test.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"3":{"qtype":1,"qname":"www.baidu.com.svc.cluster.local","msg":["cache-miss","scheduled","querying"]},"(short)www.baidu.com:nil":1,"www.baidu.com.svc.cluster.local:1":3,"www.baidu.com.test.svc.cluster.local:1":2},
context: ngx.timer, client: 127.0.0.1, server: 0.0.0.0:9081
[lua] client.lua:642: parseAnswer(): parseAnswer www.baidu.com.cluster.local
1 {"errcode":3,"errstr":"name error"}
{"1":{"qname":"(short)www.baidu.com","msg":["cache-miss"]},"2":{"qtype":1,"qname":"www.baidu.com.test.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"3":{"qtype":1,"qname":"www.baidu.com.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"4":{"qtype":1,"qname":"www.baidu.com.cluster.local","msg":["cache-miss","scheduled","querying"]},"(short)www.baidu.com:nil":1,"www.baidu.com.cluster.local:1":4,"www.baidu.com.svc.cluster.local:1":3,"www.baidu.com.test.svc.cluster.local:1":2},
context: ngx.timer, client: 127.0.0.1, server: 0.0.0.0:9081
[lua] client.lua:642: parseAnswer(): parseAnswer www.baidu.com 1
[{"section":1,"cname":"www.a.shifen.com","ttl":1186,"class":1,"type":5,"name":"www.baidu.com"},{"section":1,"cname":"www.wshifen.com","ttl":16,"class":1,"type":5,"name":"www.a.shifen.com"},{"section":1,"ttl":286,"address":"103.235.46.96","class":1,"type":1,"name":"www.wshifen.com"},{"section":1,"ttl":286,"address":"103.235.47.188","class":1,"type":1,"name":"www.wshifen.com"}]
{"1":{"qname":"(short)www.baidu.com","msg":["cache-miss"]},"2":{"qtype":1,"qname":"www.baidu.com.test.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"3":{"qtype":1,"qname":"www.baidu.com.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"4":{"qtype":1,"qname":"www.baidu.com.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"5":{"qtype":1,"qname":"www.baidu.com","msg":["cache-miss","scheduled","querying"]},"w
ww.baidu.com.test.svc.cluster.local:1":2,"(short)www.baidu.com:nil":1,"www.baidu.com.cluster.local:1":4,"www.baidu.com:1":5,"www.baidu.com.svc.cluster.local:1":3},
context: ngx.timer, client: 127.0.0.1, server: 0.0.0.0:9081
[lua] client.lua:642: parseAnswer(): parseAnswer
www.baidu.com.test.svc.cluster.local 5 {"errcode":3,"errstr":"name error"}
{"1":{"qname":"(short)www.baidu.com","msg":["cache-miss"]},"2":{"qtype":1,"qname":"www.baidu.com.test.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"3":{"qtype":1,"qname":"www.baidu.com.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"4":{"qtype":1,"qname":"www.baidu.com.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"5":{"qtype":1,"qname":"www.baidu.com","msg":["cache-miss","scheduled","querying","1:www.wshifen.com
removed","1:www.wshifen.com removed","5:www.a.shifen.com
removed","5:www.baidu.com removed","dns client error: 101 empty record
received"]},"6":{"qtype":5,"qname":"www.baidu.com.test.svc.cluster.local","msg":["cache-miss","scheduled","querying"]},"www.baidu.com.test.svc.cluster.local:1":2,"www.baidu.com.
test.svc.cluster.local:5":6,"(short)www.baidu.com:nil":1,"www.baidu.com.cluster.local:1":4,"www.baidu.com:1":5,"www.baidu.com.svc.cluster.local:1":3},
context: ngx.timer, client: 127.0.0.1, server: 0.0.0.0:9081
[lua] client.lua:642: parseAnswer(): parseAnswer
www.baidu.com.svc.cluster.local 5 {"errcode":3,"errstr":"name error"}
{"1":{"qname":"(short)www.baidu.com","msg":["cache-miss"]},"2":{"qtype":1,"qname":"www.baidu.com.test.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"3":{"qtype":1,"qname":"www.baidu.com.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"4":{"qtype":1,"qname":"www.baidu.com.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"5":{"qtype":1,"qname":"www.baidu.com","msg":["cache-miss","scheduled","querying","1:www.wshifen.com
removed","1:www.wshifen.com removed","5:www.a.shifen.com
removed","5:www.baidu.com removed","dns client error: 101 empty record
received"]},"6":{"qtype":5,"qname":"www.baidu.com.test.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name error"]},"7":{"qtype":5,"qname":"www.ba
idu.com.svc.cluster.local","msg":["cache-miss","scheduled","querying"]},"www.baidu.com.test.svc.cluster.local:1":2,"www.baidu.com.svc.cluster.local:5":7,"www.baidu.com.test.svc.cluster.local:5":6,"(short)www.baidu.com:nil":1,"www.baidu.com.cluster.local:1":4,"www.baidu.com:1":5,"www.baidu.com.svc.cluster.local:1":3},
context: ngx.timer, client: 127.0.0.1, server: 0.0.0.0:9081
[lua] client.lua:642: parseAnswer(): parseAnswer www.baidu.com.cluster.local
5 {"errcode":3,"errstr":"name error"}
{"1":{"qname":"(short)www.baidu.com","msg":["cache-miss"]},"2":{"qtype":1,"qname":"www.baidu.com.test.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"3":{"qtype":1,"qname":"www.baidu.com.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"4":{"qtype":1,"qname":"www.baidu.com.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"5":{"qtype":1,"qname":"www.baidu.com","msg":["cache-miss","scheduled","querying","1:www.wshifen.com
removed","1:www.wshifen.com removed","5:www.a.shifen.com
removed","5:www.baidu.com removed","dns client error: 101 empty record
received"]},"6":{"qtype":5,"qname":"www.baidu.com.test.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name error"]},"7":{"qtype":5,"qname":"www.baidu.
com.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns server
error: 3 name
error"]},"8":{"qtype":5,"qname":"www.baidu.com.cluster.local","msg":["cache-miss","scheduled","querying"]},"www.baidu.com.test.svc.cluster.local:1":2,"www.baidu.com.svc.cluster.local:1":3,"www.baidu.com.svc.cluster.local:5":7,"www.baidu.com.test.svc.cluster.local:5":6,"(short)www.baidu.com:nil":1,"www.baidu.com.cluster.local:1":4,"www.baidu.com:1":5,"www.baidu.com.cluster.local:5":8},
context: ngx.timer, client: 127.0.0.1, server: 0.0.0.0:9081
[lua] client.lua:1133: resolve(): resolve www.a.shifen.com nil
{"additional_section":true} null
{"1":{"qname":"(short)www.baidu.com","msg":["cache-miss"]},"2":{"qtype":1,"qname":"www.baidu.com.test.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"3":{"qtype":1,"qname":"www.baidu.com.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"4":{"qtype":1,"qname":"www.baidu.com.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"5":{"qtype":1,"qname":"www.baidu.com","msg":["cache-miss","scheduled","querying","1:www.wshifen.com
removed","1:www.wshifen.com removed","5:www.a.shifen.com
removed","5:www.baidu.com removed","dns client error: 101 empty record
received"]},"6":{"qtype":5,"qname":"www.baidu.com.test.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"7":{"qtype":5,"qname":"www.baidu.com.svc.cluster.loc
al","msg":["cache-miss","scheduled","querying","dns server error: 3 name
error"]},"8":{"qtype":5,"qname":"www.baidu.com.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"9":{"qtype":5,"qname":"www.baidu.com","msg":["cache-hit1","dereferencing"]},"www.baidu.com.svc.cluster.local:5":7,"(short)www.baidu.com:nil":1,"www.baidu.com:1":5,"www.baidu.com.cluster.local:5":8,"www.baidu.com.test.svc.cluster.local:1":2,"www.baidu.com:5":9,"www.baidu.com.test.svc.cluster.local:5":6,"www.baidu.com.cluster.local:1":4,"www.baidu.com.svc.cluster.local:1":3},
client: 127.0.0.1, server: _, request: "GET /test HTTP/1.1", host:
"127.0.0.1:9081"
[lua] client.lua:642: parseAnswer(): parseAnswer
www.a.shifen.com.test.svc.cluster.local 5 {"errcode":3,"errstr":"name error"}
{"1":{"qname":"(short)www.baidu.com","msg":["cache-miss"]},"2":{"qtype":1,"qname":"www.baidu.com.test.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"3":{"qtype":1,"qname":"www.baidu.com.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"4":{"qtype":1,"qname":"www.baidu.com.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"5":{"qtype":1,"qname":"www.baidu.com","msg":["cache-miss","scheduled","querying","1:www.wshifen.com
removed","1:www.wshifen.com removed","5:www.a.shifen.com
removed","5:www.baidu.com removed","dns client error: 101 empty record
received"]},"6":{"qtype":5,"qname":"www.baidu.com.test.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name error"]},"7":{"qtype":5,"qname"
:"www.baidu.com.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"8":{"qtype":5,"qname":"www.baidu.com.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"9":{"qtype":5,"qname":"www.baidu.com","msg":["cache-hit1","dereferencing"]},"10":{"qname":"(short)www.a.shifen.com","msg":["cache-miss"]},"11":{"qtype":5,"qname":"www.a.shifen.com.test.svc.cluster.local","msg":["cache-miss","scheduled","querying"]},"(short)www.a.shifen.com:nil":10,"www.baidu.com.svc.cluster.local:5":7,"(short)www.baidu.com:nil":1,"www.a.shifen.com.test.svc.cluster.local:5":11,"www.baidu.com:1":5,"www.baidu.com.cluster.local:5":8,"www.baidu.com.test.svc.cluster.local:1":2,"www.baidu.com:5":9,"www.baidu.com.test.svc.cluster.local:5":6,"www.baidu.com.cluster.local:1":4,"www.baidu.com.svc.cluster.local:1":3},
context: ngx.timer, client: 127.0.0.1, server: 0.0.0.0:9081
[lua] client.lua:642: parseAnswer(): parseAnswer
www.a.shifen.com.svc.cluster.local 5 {"errcode":3,"errstr":"name error"}
{"1":{"qname":"(short)www.baidu.com","msg":["cache-miss"]},"2":{"qtype":1,"qname":"www.baidu.com.test.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"3":{"qtype":1,"qname":"www.baidu.com.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"4":{"qtype":1,"qname":"www.baidu.com.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"5":{"qtype":1,"qname":"www.baidu.com","msg":["cache-miss","scheduled","querying","1:www.wshifen.com
removed","1:www.wshifen.com removed","5:www.a.shifen.com
removed","5:www.baidu.com removed","dns client error: 101 empty record
received"]},"6":{"qtype":5,"qname":"www.baidu.com.test.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name error"]},"7":{"qtype":5,"qname":"www
.baidu.com.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"8":{"qtype":5,"qname":"www.baidu.com.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"9":{"qtype":5,"qname":"www.baidu.com","msg":["cache-hit1","dereferencing"]},"10":{"qname":"(short)www.a.shifen.com","msg":["cache-miss"]},"11":{"qtype":5,"qname":"www.a.shifen.com.test.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"12":{"qtype":5,"qname":"www.a.shifen.com.svc.cluster.local","msg":["cache-miss","scheduled","querying"]},"(short)www.a.shifen.com:nil":10,"www.baidu.com.svc.cluster.local:5":7,"(short)www.baidu.com:nil":1,"www.a.shifen.com.test.svc.cluster.local:5":11,"www.baidu.com:1":5,"www.baidu.com.cluster.local:5":8,"www.baidu.com.test.svc.cluster.local:1":2,"www.baidu.com:5":9,"www.baidu.com.test.svc.cluster.local:5":6,"www.baidu.com.cluster.local:1":4,"www.baidu.com.svc.cluster.l
ocal:1":3,"www.a.shifen.com.svc.cluster.local:5":12}, context: ngx.timer,
client: 127.0.0.1, server: 0.0.0.0:9081
[lua] client.lua:642: parseAnswer(): parseAnswer
www.a.shifen.com.cluster.local 5 {"errcode":3,"errstr":"name error"}
{"1":{"qname":"(short)www.baidu.com","msg":["cache-miss"]},"2":{"qtype":1,"qname":"www.baidu.com.test.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"3":{"qtype":1,"qname":"www.baidu.com.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"4":{"qtype":1,"qname":"www.baidu.com.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"5":{"qtype":1,"qname":"www.baidu.com","msg":["cache-miss","scheduled","querying","1:www.wshifen.com
removed","1:www.wshifen.com removed","5:www.a.shifen.com
removed","5:www.baidu.com removed","dns client error: 101 empty record
received"]},"6":{"qtype":5,"qname":"www.baidu.com.test.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name error"]},"7":{"qtype":5,"qname":"www.bai
du.com.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"8":{"qtype":5,"qname":"www.baidu.com.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"9":{"qtype":5,"qname":"www.baidu.com","msg":["cache-hit1","dereferencing"]},"10":{"qname":"(short)www.a.shifen.com","msg":["cache-miss"]},"11":{"qtype":5,"qname":"www.a.shifen.com.test.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"12":{"qtype":5,"qname":"www.a.shifen.com.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"13":{"qtype":5,"qname":"www.a.shifen.com.cluster.local","msg":["cache-miss","scheduled","querying"]},"(short)www.a.shifen.com:nil":10,"www.baidu.com.svc.cluster.local:5":7,"(short)www.baidu.com:nil":1,"www.a.shifen.com.test.svc.cluster.local:5":11,"www.baidu.com:1":5,"www.baidu.com.cluster.local:5":8,"www.baidu.com.test.svc.cluster.local
:1":2,"www.baidu.com:5":9,"www.baidu.com.test.svc.cluster.local:5":6,"www.a.shifen.com.cluster.local:5":13,"www.baidu.com.cluster.local:1":4,"www.baidu.com.svc.cluster.local:1":3,"www.a.shifen.com.svc.cluster.local:5":12},
context: ngx.timer, client: 127.0.0.1, server: 0.0.0.0:9081
[lua] client.lua:1133: resolve(): resolve www.wshifen.com nil
{"additional_section":true} null
{"1":{"qname":"(short)www.baidu.com","msg":["cache-miss"]},"2":{"qtype":1,"qname":"www.baidu.com.test.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"3":{"qtype":1,"qname":"www.baidu.com.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"4":{"qtype":1,"qname":"www.baidu.com.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"5":{"qtype":1,"qname":"www.baidu.com","msg":["cache-miss","scheduled","querying","1:www.wshifen.com
removed","1:www.wshifen.com removed","5:www.a.shifen.com
removed","5:www.baidu.com removed","dns client error: 101 empty record
received"]},"6":{"qtype":5,"qname":"www.baidu.com.test.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"7":{"qtype":5,"qname":"www.baidu.com.svc.cluster.loca
l","msg":["cache-miss","scheduled","querying","dns server error: 3 name
error"]},"8":{"qtype":5,"qname":"www.baidu.com.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"9":{"qtype":5,"qname":"www.baidu.com","msg":["cache-hit1","dereferencing"]},"10":{"qname":"(short)www.a.shifen.com","msg":["cache-miss"]},"11":{"qtype":5,"qname":"www.a.shifen.com.test.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"12":{"qtype":5,"qname":"www.a.shifen.com.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"13":{"qtype":5,"qname":"www.a.shifen.com.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"14":{"qtype":5,"qname":"www.a.shifen.com","msg":["cache-hit1","dereferencing"]},"(short)www.a.shifen.com:nil":10,"www.baidu.com.svc.cluster.local:5":7,"www.a.shifen.com:5":14,"(short)www.baidu.com:nil":1,"www.a.shifen.com.test.
svc.cluster.local:5":11,"www.baidu.com:1":5,"www.baidu.com.cluster.local:5":8,"www.baidu.com.test.svc.cluster.local:1":2,"www.baidu.com:5":9,"www.baidu.com.test.svc.cluster.local:5":6,"www.a.shifen.com.cluster.local:5":13,"www.baidu.com.cluster.local:1":4,"www.baidu.com.svc.cluster.local:1":3,"www.a.shifen.com.svc.cluster.local:5":12},
client: 127.0.0.1, server: _, request: "GET /test HTTP/1.1", host:
"127.0.0.1:9081"
[lua] client.lua:642: parseAnswer(): parseAnswer
www.wshifen.com.test.svc.cluster.local 1 {"errcode":3,"errstr":"name error"}
{"1":{"qname":"(short)www.baidu.com","msg":["cache-miss"]},"2":{"qtype":1,"qname":"www.baidu.com.test.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"3":{"qtype":1,"qname":"www.baidu.com.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"4":{"qtype":1,"qname":"www.baidu.com.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"5":{"qtype":1,"qname":"www.baidu.com","msg":["cache-miss","scheduled","querying","1:www.wshifen.com
removed","1:www.wshifen.com removed","5:www.a.shifen.com
removed","5:www.baidu.com removed","dns client error: 101 empty record
received"]},"6":{"qtype":5,"qname":"www.baidu.com.test.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name error"]},"7":{"qtype":5,"qname":
"www.baidu.com.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"8":{"qtype":5,"qname":"www.baidu.com.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"9":{"qtype":5,"qname":"www.baidu.com","msg":["cache-hit1","dereferencing"]},"10":{"qname":"(short)www.a.shifen.com","msg":["cache-miss"]},"11":{"qtype":5,"qname":"www.a.shifen.com.test.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"12":{"qtype":5,"qname":"www.a.shifen.com.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"13":{"qtype":5,"qname":"www.a.shifen.com.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"14":{"qtype":5,"qname":"www.a.shifen.com","msg":["cache-hit1","dereferencing"]},"15":{"qname":"(short)www.wshifen.com","msg":["cache-miss"]},"16":{"qtype":1,"qname":"www.wshifen.com.test.svc.clust
er.local","msg":["cache-miss","scheduled","querying"]},"www.wshifen.com.test.svc.cluster.local:1":16,"(short)www.a.shifen.com:nil":10,"www.baidu.com.svc.cluster.local:5":7,"www.a.shifen.com:5":14,"(short)www.baidu.com:nil":1,"www.a.shifen.com.test.svc.cluster.local:5":11,"www.baidu.com:1":5,"www.baidu.com.cluster.local:5":8,"www.baidu.com.test.svc.cluster.local:1":2,"(short)www.wshifen.com:nil":15,"www.baidu.com:5":9,"www.baidu.com.test.svc.cluster.local:5":6,"www.a.shifen.com.cluster.local:5":13,"www.baidu.com.cluster.local:1":4,"www.baidu.com.svc.cluster.local:1":3,"www.a.shifen.com.svc.cluster.local:5":12},
context: ngx.timer, client: 127.0.0.1, server: 0.0.0.0:9081
[lua] client.lua:642: parseAnswer(): parseAnswer
www.wshifen.com.svc.cluster.local 1 {"errcode":3,"errstr":"name error"}
{"1":{"qname":"(short)www.baidu.com","msg":["cache-miss"]},"2":{"qtype":1,"qname":"www.baidu.com.test.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"3":{"qtype":1,"qname":"www.baidu.com.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"4":{"qtype":1,"qname":"www.baidu.com.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"5":{"qtype":1,"qname":"www.baidu.com","msg":["cache-miss","scheduled","querying","1:www.wshifen.com
removed","1:www.wshifen.com removed","5:www.a.shifen.com
removed","5:www.baidu.com removed","dns client error: 101 empty record
received"]},"6":{"qtype":5,"qname":"www.baidu.com.test.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name error"]},"7":{"qtype":5,"qname":"www.
baidu.com.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"8":{"qtype":5,"qname":"www.baidu.com.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"9":{"qtype":5,"qname":"www.baidu.com","msg":["cache-hit1","dereferencing"]},"10":{"qname":"(short)www.a.shifen.com","msg":["cache-miss"]},"11":{"qtype":5,"qname":"www.a.shifen.com.test.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"12":{"qtype":5,"qname":"www.a.shifen.com.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"13":{"qtype":5,"qname":"www.a.shifen.com.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"14":{"qtype":5,"qname":"www.a.shifen.com","msg":["cache-hit1","dereferencing"]},"15":{"qname":"(short)www.wshifen.com","msg":["cache-miss"]},"16":{"qtype":1,"qname":"www.wshifen.com.test.svc.cluster.lo
cal","msg":["cache-miss","scheduled","querying","dns server error: 3 name
error"]},"17":{"qtype":1,"qname":"www.wshifen.com.svc.cluster.local","msg":["cache-miss","scheduled","querying"]},"(short)www.a.shifen.com:nil":10,"www.a.shifen.com:5":14,"(short)www.baidu.com:nil":1,"www.a.shifen.com.test.svc.cluster.local:5":11,"www.baidu.com:1":5,"www.baidu.com.test.svc.cluster.local:1":2,"www.baidu.com:5":9,"www.baidu.com.test.svc.cluster.local:5":6,"www.baidu.com.cluster.local:1":4,"www.wshifen.com.svc.cluster.local:1":17,"www.a.shifen.com.svc.cluster.local:5":12,"www.baidu.com.svc.cluster.local:5":7,"www.baidu.com.cluster.local:5":8,"(short)www.wshifen.com:nil":15,"www.a.shifen.com.cluster.local:5":13,"www.baidu.com.svc.cluster.local:1":3,"www.wshifen.com.test.svc.cluster.local:1":16},
context: ngx.timer, client: 127.0.0.1, server: 0.0.0.0:9081
[lua] client.lua:642: parseAnswer(): parseAnswer
www.wshifen.com.cluster.local 1 {"errcode":3,"errstr":"name error"}
{"1":{"qname":"(short)www.baidu.com","msg":["cache-miss"]},"2":{"qtype":1,"qname":"www.baidu.com.test.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"3":{"qtype":1,"qname":"www.baidu.com.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"4":{"qtype":1,"qname":"www.baidu.com.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"5":{"qtype":1,"qname":"www.baidu.com","msg":["cache-miss","scheduled","querying","1:www.wshifen.com
removed","1:www.wshifen.com removed","5:www.a.shifen.com
removed","5:www.baidu.com removed","dns client error: 101 empty record
received"]},"6":{"qtype":5,"qname":"www.baidu.com.test.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name error"]},"7":{"qtype":5,"qname":"www.baid
u.com.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"8":{"qtype":5,"qname":"www.baidu.com.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"9":{"qtype":5,"qname":"www.baidu.com","msg":["cache-hit1","dereferencing"]},"10":{"qname":"(short)www.a.shifen.com","msg":["cache-miss"]},"11":{"qtype":5,"qname":"www.a.shifen.com.test.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"12":{"qtype":5,"qname":"www.a.shifen.com.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"13":{"qtype":5,"qname":"www.a.shifen.com.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"14":{"qtype":5,"qname":"www.a.shifen.com","msg":["cache-hit1","dereferencing"]},"15":{"qname":"(short)www.wshifen.com","msg":["cache-miss"]},"16":{"qtype":1,"qname":"www.wshifen.com.test.svc.cluster.local"
,"msg":["cache-miss","scheduled","querying","dns server error: 3 name
error"]},"17":{"qtype":1,"qname":"www.wshifen.com.svc.cluster.local","msg":["cache-miss","scheduled","querying","dns
server error: 3 name
error"]},"18":{"qtype":1,"qname":"www.wshifen.com.cluster.local","msg":["cache-miss","scheduled","querying"]},"(short)www.a.shifen.com:nil":10,"www.a.shifen.com:5":14,"(short)www.baidu.com:nil":1,"www.a.shifen.com.test.svc.cluster.local:5":11,"www.baidu.com:1":5,"www.baidu.com.test.svc.cluster.local:1":2,"www.baidu.com:5":9,"www.baidu.com.test.svc.cluster.local:5":6,"www.baidu.com.cluster.local:1":4,"www.wshifen.com.svc.cluster.local:1":17,"www.a.shifen.com.svc.cluster.local:5":12,"www.baidu.com.svc.cluster.local:5":7,"www.wshifen.com.cluster.local:1":18,"www.baidu.com.cluster.local:5":8,"(short)www.wshifen.com:nil":15,"www.a.shifen.com.cluster.local:5":13,"www.baidu.com.svc.cluster.local:1":3,"www.wshifen.com.test.svc.cluster.local:1":16},
context: ngx.timer, client: 127.0.0.1,
server: 0.0.0.0:9081
[lua] client.lua:1287: resolve(): resolve return
{"1":{"section":1,"ttl":286,"address":"103.235.46.96","class":1,"type":1,"name":"www.wshifen.com"},"2":{"section":1,"ttl":286,"address":"103.235.47.188","class":1,"type":1,"name":"www.wshifen.com"},"expired":false,"touch":1721236062.24,"expire":1721236345.386,"ttl":286},
client: 127.0.0.1, server: _, request: "GET /test HTTP/1.1", host:
"127.0.0.1:9081"
[lua] client.lua:123: dns_parse(): dns resolve www.baidu.com, result:
{"section":1,"ttl":286,"address":"103.235.47.188","class":1,"type":1,"name":"www.wshifen.com"},
client: 127.0.0.1, server: _, request: "GET /test HTTP/1.1", host:
"127.0.0.1:9081"
```
Please use the following client.lua file: https://pastebin.com/4dVRHsUT
It documents the complete workflow of the DNS client like
https://pastebin.com/svpAAbYC
I believe this is helpful in diagnosing resolve errors.
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