502 Proxy Error: The proxy server received an invalid response from an upstream server.

dincooo — Thu, 02 Aug 2018 07:38:34 GMT

Hi all,

We have a real time SAS server which takes and sends real time requests.

It works for 2 years but from yesterday there is an error:

After waiting nearly 110 seconds the requests are getting error like this:

Response :

<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">

<title>502 Proxy Error</title>

</head><body>

<h1>Proxy Error</h1>

<p>The proxy server received an invalid

response from an upstream server.<br />

The proxy server could not handle the request <em><a href="/SASBIWS/services/claim_info_ws">POST /SASBIWS/services/claim_info_ws</a></em>.<p>

Reason: <strong>Error reading from remote server</strong></p></p>

<hr>

<address>Apache/2.2.29.0 (Unix) PivotalWebServer/5.4.3 mod_ssl/2.2.29.0 OpenSSL/1.0.1j-fips mod_bmx/0.9.4

Also when logging to a SAS web UI the error is:

2018-08-01 20:05:05,190 [task-scheduler-2] ERROR [unknown] org.springframework.integration.handler.LoggingHandler - java.lang.RuntimeException: java.io.IOException: Server returned HTTP response code: 502 for URL:

at org.jasig.cas.client.util.CommonUtils.getResponseFromServer(CommonUtils.java:328)

at org.jasig.cas.client.util.CommonUtils.getResponseFromServer(CommonUtils.java:291)

at org.jasig.cas.client.util.CommonUtils.getResponseFromServer(CommonUtils.java:344)

at org.jasig.cas.client.proxy.Cas20ProxyRetriever.getProxyTicketIdFor(Cas20ProxyRetriever.java:65)

at org.jasig.cas.client.authentication.AttributePrincipalImpl.getProxyTicketFor(AttributePrincipalImpl.java:87)

at com.sas.svcs.authentication.helper.LazySpringSecurityContext.getSecurityContextWithAuthManager(LazySpringSecurityContext.java:155)

at com.sas.svcs.authentication.helper.LazySpringSecurityContext.getSecurityContext(LazySpringSecurityContext.java:234)

at com.sas.svcs.authentication.helper.LazySpringSecurityContext.getAuthentication(LazySpringSecurityContext.java:245)

at com.sas.svcs.security.aop.RunAsInterceptor.invoke(RunAsInterceptor.java:84)

at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)

at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)

at com.sun.proxy.$Proxy1985.loadRelationships(Unknown Source)

at com.sas.svcs.content.relationship.dao.scheduling.RelationshipSchedulingHandler$LoadRunnable.run(RelationshipSchedulingHandler.java:317)

at org.springframework.scheduling.support.DelegatingErrorHandlingRunnable.run(DelegatingErrorHandlingRunnable.java:53)

at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)

at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:304)

at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178)

at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)

at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)

at java.lang.Thread.run(Thread.java:745)

Caused by: java.io.IOException: Server returned HTTP response code: 502 for URL:

at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1627)

at org.jasig.cas.client.util.CommonUtils.getResponseFromServer(CommonUtils.java:311)

... 20 more

Re: 502 Proxy Error: The proxy server received an invalid response from an upstream server.

boemskats — Fri, 03 Aug 2018 19:30:22 GMT

How long do your services take to execute? Is it anywhere near 5 minutes?

Have you already tried restarting your WebAppServer?

topic Re: 502 Proxy Error: The proxy server received an invalid response from an upstream server. in Administration and Deployment

502 Proxy Error: The proxy server received an invalid response from an upstream server.

Re: 502 Proxy Error: The proxy server received an invalid response from an upstream server.