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Posted to notifications@apisix.apache.org by GitBox <gi...@apache.org> on 2022/11/17 01:18:44 UTC
[GitHub] [apisix] tzssangglass opened a new issue, #8345: request help: APISIX retuen error 3 name error with multi Consul DNS
tzssangglass opened a new issue, #8345:
URL: https://github.com/apache/apisix/issues/8345
### Discussed in https://github.com/apache/apisix/discussions/8338
<div type='discussions-op-text'>
<sup>Originally posted by **Fabriceli** November 16, 2022</sup>
Version info:
- APISIX 3.0.0
- Consul 1.9.5
- Linux arch x86_64
ERROR:
```sh
[error] 43382#43382: *1626 [lua] init.lua:428: handle_upstream(): failed to set upstream: no valid upstream node: failed to query the DNS server: dns server error: 3 name error, client: a.a.a.a, server: _, request: "GET /api/v0/test/ HTTP/1.1", host: "b.b.b.b"
```
with `/usr/local/apisix/conf/config.yaml`:
```yaml
discovery:
dns:
servers:
- "x.x.x.x:8600"
- "y.y.y.y:8600"
```
service A is **only** valid in Consul y.y.y.y:8600. APISIX is not support multi Consul DNS? </div>
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[GitHub] [apisix] Fabriceli commented on issue #8345: request help: APISIX retuen error 3 name error with multi Consul DNS
Posted by GitBox <gi...@apache.org>.
Fabriceli commented on issue #8345:
URL: https://github.com/apache/apisix/issues/8345#issuecomment-1321553811
@tokers
for this feature, I create a Consul register not Consul with kv, May I create a PR to merger in master? for help other guys
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[GitHub] [apisix] tzssangglass commented on issue #8345: request help: APISIX retuen error 3 name error with multi Consul DNS
Posted by GitBox <gi...@apache.org>.
tzssangglass commented on issue #8345:
URL: https://github.com/apache/apisix/issues/8345#issuecomment-1318145247
> How to fix it ?
I don't think it needs to be fixed. I think this is a new feature. I don't have any good ideas to implement it at the moment.
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[GitHub] [apisix] Fabriceli commented on issue #8345: request help: APISIX retuen error 3 name error with multi Consul DNS
Posted by GitBox <gi...@apache.org>.
Fabriceli commented on issue #8345:
URL: https://github.com/apache/apisix/issues/8345#issuecomment-1323090469
>
I created [#8371](https://github.com/apache/apisix/issues/8371), Could you assign this feature to me?
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[GitHub] [apisix] Fabriceli commented on issue #8345: request help: APISIX retuen error 3 name error with multi Consul DNS
Posted by GitBox <gi...@apache.org>.
Fabriceli commented on issue #8345:
URL: https://github.com/apache/apisix/issues/8345#issuecomment-1322289875
@tokers please assign it to me
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[GitHub] [apisix] tokers commented on issue #8345: request help: APISIX retuen error 3 name error with multi Consul DNS
Posted by GitBox <gi...@apache.org>.
tokers commented on issue #8345:
URL: https://github.com/apache/apisix/issues/8345#issuecomment-1319435776
> > I think a good way to support this is to let users define multiple DNS service registries, and for each registry, one can define a group of DNS servers, which are the same for the domain resolving. While for different DNS service registries, the resolve result might be different.
>
> I think on a high level, this requires APISIX discovery mode to support multiple clusters and orchestrate query rules.
Right.
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[GitHub] [apisix] shreemaan-abhishek commented on issue #8345: request help: APISIX retuen error 3 name error with multi Consul DNS
Posted by "shreemaan-abhishek (via GitHub)" <gi...@apache.org>.
shreemaan-abhishek commented on issue #8345:
URL: https://github.com/apache/apisix/issues/8345#issuecomment-1708041613
closing this as completed by #8380
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[GitHub] [apisix] tokers commented on issue #8345: request help: APISIX retuen error 3 name error with multi Consul DNS
Posted by GitBox <gi...@apache.org>.
tokers commented on issue #8345:
URL: https://github.com/apache/apisix/issues/8345#issuecomment-1321806729
> @tokers for this feature, I create a Consul register not Consul with kv, May I create a PR to merger in master? for help other guys
That's cool. Welcome to submit PR!
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[GitHub] [apisix] tzssangglass commented on issue #8345: request help: APISIX retuen error 3 name error with multi Consul DNS
Posted by GitBox <gi...@apache.org>.
tzssangglass commented on issue #8345:
URL: https://github.com/apache/apisix/issues/8345#issuecomment-1318407946
> When can add this new feature? or make a discussion about this feature at next Community Weekly Meeting
Yes, if there is a community meeting in the near future, we will let you know in the discussion and on the mailing list.
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[GitHub] [apisix] Fabriceli commented on issue #8345: request help: APISIX retuen error 3 name error with multi Consul DNS
Posted by GitBox <gi...@apache.org>.
Fabriceli commented on issue #8345:
URL: https://github.com/apache/apisix/issues/8345#issuecomment-1318203323
When can add this new feature? or make a discussion about this feature at next Community Weekly Meeting
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[GitHub] [apisix] tokers commented on issue #8345: request help: APISIX retuen error 3 name error with multi Consul DNS
Posted by GitBox <gi...@apache.org>.
tokers commented on issue #8345:
URL: https://github.com/apache/apisix/issues/8345#issuecomment-1322849705
> @tokers please assign it to me
We can create another issue to track the new consul service discovery.
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[GitHub] [apisix] shreemaan-abhishek closed issue #8345: request help: APISIX retuen error 3 name error with multi Consul DNS
Posted by "shreemaan-abhishek (via GitHub)" <gi...@apache.org>.
shreemaan-abhishek closed issue #8345: request help: APISIX retuen error 3 name error with multi Consul DNS
URL: https://github.com/apache/apisix/issues/8345
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[GitHub] [apisix] Fabriceli commented on issue #8345: request help: APISIX retuen error 3 name error with multi Consul DNS
Posted by GitBox <gi...@apache.org>.
Fabriceli commented on issue #8345:
URL: https://github.com/apache/apisix/issues/8345#issuecomment-1318089420
How to fix it ?
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[GitHub] [apisix] tokers commented on issue #8345: request help: APISIX retuen error 3 name error with multi Consul DNS
Posted by GitBox <gi...@apache.org>.
tokers commented on issue #8345:
URL: https://github.com/apache/apisix/issues/8345#issuecomment-1318383895
@tzssangglass I think a good way to support this is to let users define multiple DNS service registries, and for each registry, one can define a group of DNS servers, which are the same for the domain resolving. While for different DNS service registries, the resolve result might be different.
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[GitHub] [apisix] tzssangglass commented on issue #8345: request help: APISIX retuen error 3 name error with multi Consul DNS
Posted by GitBox <gi...@apache.org>.
tzssangglass commented on issue #8345:
URL: https://github.com/apache/apisix/issues/8345#issuecomment-1318069142
hi @Fabriceli , I eventually tracked it down here: https://github.com/openresty/lua-resty-dns/blob/master/lib/resty/dns/resolver.lua#L870-L896
```
for _ = 1, 128 do
buf, err = sock:receive(4096)
if err then
local server = _get_cur_server(self)
err = "failed to receive reply from UDP server "
.. concat(server, ":") .. ": " .. err
break
end
if buf then
local answers
answers, err = parse_response(buf, id, opts)
if err == "truncated" then
answers, err = _tcp_query(self, query, id, opts)
end
if err and err ~= "id mismatch" then
break
end
if answers then
return answers, nil, tries
end
end
-- only here in case of an "id mismatch"
end
end
```
1. first query "service-name-x.service.dc-name-x.consul" from `x.x.x.x:8600`
2. then get the `buf`, and `err` is nil, so it won't go into ` if err then`, just `parse_response(buf, id, opts)` and the answers is
```
{
errcode = 3,
errstr = "name error"
}
```
3. and then return this error directly, won't try to query on `y.y.y.y:8600` again.
> or multi DNS, APISIX is not work like this ??:
<img width="845" alt="image" src="https://user-images.githubusercontent.com/30819887/202358605-08407b84-24e2-4af1-8229-7cc99efc5057.png">
yes
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[GitHub] [apisix] tzssangglass commented on issue #8345: request help: APISIX retuen error 3 name error with multi Consul DNS
Posted by GitBox <gi...@apache.org>.
tzssangglass commented on issue #8345:
URL: https://github.com/apache/apisix/issues/8345#issuecomment-1318406309
> I think a good way to support this is to let users define multiple DNS service registries, and for each registry, one can define a group of DNS servers, which are the same for the domain resolving. While for different DNS service registries, the resolve result might be different.
I think on a high level, this requires APISIX discovery mode to support multiple clusters and orchestrate query rules.
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