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Posted to notifications@apisix.apache.org by "imtzw (via GitHub)" <gi...@apache.org> on 2024/04/11 01:11:38 UTC
[I] help request: upstream reset when client rate limited [apisix]
imtzw opened a new issue, #11142:
URL: https://github.com/apache/apisix/issues/11142
### Description
when client has rate limit (such as 50k/s) , in apisix's connection with upstream appears zero window , then it turns out apisix reset tcp connection with upstream then ( not immediately) sends a FIN to client , even if client tries to keep alive.
it seems for me, modifying http.send_timeout in config.yaml will resolve this , but im concerned about the reason and what is best method?
### Environment
- APISIX version (run `apisix version`):
- Operating system (run `uname -a`):
- OpenResty / Nginx version (run `openresty -V` or `nginx -V`):
- etcd version, if relevant (run `curl http://127.0.0.1:9090/v1/server_info`):
- APISIX Dashboard version, if relevant:
- Plugin runner version, for issues related to plugin runners:
- LuaRocks version, for installation issues (run `luarocks --version`):
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Re: [I] help request: upstream reset when client rate limited [apisix]
Posted by "imtzw (via GitHub)" <gi...@apache.org>.
imtzw commented on issue #11142:
URL: https://github.com/apache/apisix/issues/11142#issuecomment-2081750183
This seems not a bug.
when a socket receives faster from nginx than it sends to client, it will not be ready for a while.
if nginx doesnot permit buffer body, it may for such a while recv nothing from upstream. thus upstream's sending is blocked for just such a while ( if the upstream sends healthily , its send-queue is fullfilled instantly)
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Re: [I] help request: upstream reset when client rate limited [apisix]
Posted by "imtzw (via GitHub)" <gi...@apache.org>.
imtzw closed issue #11142: help request: upstream reset when client rate limited
URL: https://github.com/apache/apisix/issues/11142
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Re: [I] help request: upstream reset when client rate limited [apisix]
Posted by "shreemaan-abhishek (via GitHub)" <gi...@apache.org>.
shreemaan-abhishek commented on issue #11142:
URL: https://github.com/apache/apisix/issues/11142#issuecomment-2051435312
> 2.10.1
The version is too old, please consider upgrading or check if the bug exists in newer versions. If possible please share the steps on how to reproduce this issue thanks>
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