https://bz.apache.org/bugzilla/show_bug.cgi?id=69228
Bug ID: 69228
Summary: Tomcat occasionally return 404 html page
Product: Tomcat 9
Version: 9.0.89
Hardware: PC
OS: Linux
Status: NEW
Severity: major
Priority: P2
Component: Catalina
Assignee: dev@tomcat.apache.org
Reporter: gp00142...@aliyun.com
Target Milestone: -----
Recently, to fix CVE vulnerabilities, I upgraded Tomcat from version 9.0.69 to
9.0.89. However, I noticed that occasionally, a few requests return a 404 HTML
page. When I rolled back to version 9.0.69, the issue no longer occurred.
Unfortunately, It's not easy to reproduce and I can't find the reproduce steps.
I record the stack of server side when the 404 problem occured, please see the
attachments.
Here is the log of feign client:
Caused by: feign.FeignException$NotFound: [404] during [GET] to [
http://UC/inner/user-by-id?id=73887230]
[UCClient#getUserById(String)]: [<!doctype html><html
lang="en"><head><title>HTTP Status 404 – Not Found</title><style
type="text/css">body {font-family:Tahoma,Arial,sans-serif;} h1, h2, h3, b
{color:white;background-color:#525D76;} ... (431 bytes)]
at feign.FeignException.clientErrorStatus(FeignException.java:201)
at feign.FeignException.errorStatus(FeignException.java:177)
at feign.FeignException.errorStatus(FeignException.java:169)
at feign.codec.ErrorDecoder$Default.decode(ErrorDecoder.java:92)
at
feign.AsyncResponseHandler.handleResponse(AsyncResponseHandler.java:96)
at
feign.SynchronousMethodHandler.executeAndDecode(SynchronousMethodHandler.java:138)
at
feign.SynchronousMethodHandler.invoke(SynchronousMethodHandler.java:89)
at
feign.hystrix.HystrixInvocationHandler$1.run(HystrixInvocationHandler.java:109)
at com.netflix.hystrix.HystrixCommand$2.call(HystrixCommand.java:302)
at com.netflix.hystrix.HystrixCommand$2.call(HystrixCommand.java:298)
at
rx.internal.operators.OnSubscribeDefer.call(OnSubscribeDefer.java:46)
... 27 common frames omitted
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