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seanmayer / spring-microservices-refresher

Java, Docker, Kubernetes, client side load balancing, dynamic scaling, fault tolerance, etc
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Internal server error when calling currency conversion endpoint #5

Closed seanmayer closed 1 year ago

seanmayer commented 1 year ago

Error:

curl http://{{EXTERNAL-IP}}:8100/currency-conversion-feign/from/USD/to/INR/quantity/10
{"timestamp":"2023-05-03T06:24:26.730+00:00","status":500,"error":"Internal Server Error","path":              "/currency-conversion-feign/from/USD/to/INR/quantity/10"}Seans-MBP:spring-microservices-refresher

Pod logs:

Setting Active Processor Count to 2
Calculating JVM memory based on 2971752K available memory
For more information on this calculation, see https://paketo.io/docs/reference/java-reference/#memory-calculator
Calculated JVM Memory Configuration: -XX:MaxDirectMemorySize=10M -Xmx2567765K -XX:MaxMetaspaceSize=96786K -XX:ReservedCodeCacheSize=240M -Xss1M (Total Memory: 2971752K, Thread Count: 50, Loaded Class Count: 14674, Headroom: 0%)
Enabling Java Native Memory Tracking
Adding 124 container CA certificates to JVM truststore
Spring Cloud Bindings Enabled
Picked up JAVA_TOOL_OPTIONS: -Djava.security.properties=/layers/paketo-buildpacks_bellsoft-liberica/java-security-properties/java-security.properties -XX:+ExitOnOutOfMemoryError -XX:ActiveProcessorCount=2 -XX:MaxDirectMemorySize=10M -Xmx2567765K -XX:MaxMetaspaceSize=96786K -XX:ReservedCodeCacheSize=240M -Xss1M -XX:+UnlockDiagnosticVMOptions -XX:NativeMemoryTracking=summary -XX:+PrintNMTStatistics -Dorg.springframework.cloud.bindings.boot.enable=true
  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::                (v3.0.3)
2023-05-03T06:19:38.716Z  INFO [currency-conversion,,] 1 --- [           main] m.c.CurrencyConversionServiceApplication : Starting CurrencyConversionServiceApplication v0.0.1-SNAPSHOT using Java 17.0.6 with PID 1 (/workspace/BOOT-INF/classes started by cnb in /workspace)
2023-05-03T06:19:38.747Z  INFO [currency-conversion,,] 1 --- [           main] m.c.CurrencyConversionServiceApplication : No active profile set, falling back to 1 default profile: "default"
2023-05-03T06:19:43.861Z  INFO [currency-conversion,,] 1 --- [           main] o.s.cloud.context.scope.GenericScope     : BeanFactory id=9e10515f-68de-3827-8417-5a1010ea22b1
2023-05-03T06:19:44.741Z  INFO [currency-conversion,,] 1 --- [           main] trationDelegate$BeanPostProcessorChecker : Bean 'com.microservices.currencyconversionservice.CurrencyExchangeProxy' of type [org.springframework.cloud.openfeign.FeignClientFactoryBean] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2023-05-03T06:19:45.913Z  INFO [currency-conversion,,] 1 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat initialized with port(s): 8100 (http)
2023-05-03T06:19:45.942Z  INFO [currency-conversion,,] 1 --- [           main] o.apache.catalina.core.StandardService   : Starting service [Tomcat]
2023-05-03T06:19:45.943Z  INFO [currency-conversion,,] 1 --- [           main] o.apache.catalina.core.StandardEngine    : Starting Servlet engine: [Apache Tomcat/10.1.5]
2023-05-03T06:19:46.429Z  INFO [currency-conversion,,] 1 --- [           main] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
2023-05-03T06:19:46.433Z  INFO [currency-conversion,,] 1 --- [           main] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 7204 ms
2023-05-03T06:19:50.599Z  WARN [currency-conversion,,] 1 --- [           main] iguration$LoadBalancerCaffeineWarnLogger : Spring Cloud LoadBalancer is currently working with the default cache. While this cache implementation is useful for development and tests, it's recommended to use Caffeine cache in production.You can switch to using Caffeine cache, by adding it and org.springframework.cache.caffeine.CaffeineCacheManager to the classpath.
2023-05-03T06:19:50.637Z  INFO [currency-conversion,,] 1 --- [           main] o.s.b.a.e.web.EndpointLinksResolver      : Exposing 1 endpoint(s) beneath base path '/actuator'
2023-05-03T06:19:50.769Z  INFO [currency-conversion,,] 1 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat started on port(s): 8100 (http) with context path ''
2023-05-03T06:19:50.812Z  INFO [currency-conversion,,] 1 --- [           main] m.c.CurrencyConversionServiceApplication : Started CurrencyConversionServiceApplication in 14.414 seconds (process running for 15.823)
2023-05-03T06:24:26.450Z  INFO [currency-conversion,,] 1 --- [nio-8100-exec-1] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring DispatcherServlet 'dispatcherServlet'
2023-05-03T06:24:26.451Z  INFO [currency-conversion,,] 1 --- [nio-8100-exec-1] o.s.web.servlet.DispatcherServlet        : Initializing Servlet 'dispatcherServlet'
2023-05-03T06:24:26.456Z  INFO [currency-conversion,,] 1 --- [nio-8100-exec-1] o.s.web.servlet.DispatcherServlet        : Completed initialization in 5 ms
2023-05-03T06:24:26.652Z  INFO [currency-conversion,65f6dc3206e60887a198c9894c04cbcb,3398e887aa81f8cb] 1 --- [nio-8100-exec-1] c.m.c.CurrencyConversionController       : calculateCurrencyConversion called with USD to INR
2023-05-03T06:24:26.711Z ERROR [currency-conversion,,] 1 --- [nio-8100-exec-1] o.a.c.c.C.[.[.[/].[dispatcherServlet]    : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed: feign.RetryableException: Connection refused executing GET http://localhost:8000/currency-exchange/from/USD/to/INR] with root cause
java.net.ConnectException: Connection refused
    at java.base/sun.nio.ch.Net.pollConnect(Native Method) ~[na:na]
    at java.base/sun.nio.ch.Net.pollConnectNow(Unknown Source) ~[na:na]
    at java.base/sun.nio.ch.NioSocketImpl.timedFinishConnect(Unknown Source) ~[na:na]
    at java.base/sun.nio.ch.NioSocketImpl.connect(Unknown Source) ~[na:na]
    at java.base/java.net.Socket.connect(Unknown Source) ~[na:na]
    at java.base/sun.net.NetworkClient.doConnect(Unknown Source) ~[na:na]
    at java.base/sun.net.www.http.HttpClient.openServer(Unknown Source) ~[na:na]
    at java.base/sun.net.www.http.HttpClient.openServer(Unknown Source) ~[na:na]
    at java.base/sun.net.www.http.HttpClient.<init>(Unknown Source) ~[na:na]
    at java.base/sun.net.www.http.HttpClient.New(Unknown Source) ~[na:na]
    at java.base/sun.net.www.http.HttpClient.New(Unknown Source) ~[na:na]
    at java.base/sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(Unknown Source) ~[na:na]
    at java.base/sun.net.www.protocol.http.HttpURLConnection.plainConnect0(Unknown Source) ~[na:na]
    at java.base/sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source) ~[na:na]
    at java.base/sun.net.www.protocol.http.HttpURLConnection.connect(Unknown Source) ~[na:na]
    at java.base/sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source) ~[na:na]
    at java.base/sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source) ~[na:na]
    at java.base/java.net.HttpURLConnection.getResponseCode(Unknown Source) ~[na:na]
    at feign.Client$Default.convertResponse(Client.java:110) ~[feign-core-12.1.jar:na]
    at feign.Client$Default.execute(Client.java:106) ~[feign-core-12.1.jar:na]
    at feign.micrometer.MicrometerObservationCapability.lambda$enrich$1(MicrometerObservationCapability.java:53) ~[feign-micrometer-12.1.jar:na]
    at feign.SynchronousMethodHandler.executeAndDecode(SynchronousMethodHandler.java:102) ~[feign-core-12.1.jar:na]
    at feign.SynchronousMethodHandler.invoke(SynchronousMethodHandler.java:72) ~[feign-core-12.1.jar:na]
    at feign.ReflectiveFeign$FeignInvocationHandler.invoke(ReflectiveFeign.java:98) ~[feign-core-12.1.jar:na]
    at jdk.proxy2/jdk.proxy2.$Proxy86.retrieveExchangeValue(Unknown Source) ~[na:na]
    at com.microservices.currencyconversionservice.CurrencyConversionController.calculateCurrencyConversionFeign(CurrencyConversionController.java:65) ~[classes/:0.0.1-SNAPSHOT]
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[na:na]
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[na:na]
    at java.base/java.lang.reflect.Method.invoke(Unknown Source) ~[na:na]
    at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:207) ~[spring-web-6.0.5.jar:6.0.5]
    at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:152) ~[spring-web-6.0.5.jar:6.0.5]
    at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:117) ~[spring-webmvc-6.0.5.jar:6.0.5]
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:884) ~[spring-webmvc-6.0.5.jar:6.0.5]
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:797) ~[spring-webmvc-6.0.5.jar:6.0.5]
    at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-6.0.5.jar:6.0.5]
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1081) ~[spring-webmvc-6.0.5.jar:6.0.5]
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:974) ~[spring-webmvc-6.0.5.jar:6.0.5]
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1011) ~[spring-webmvc-6.0.5.jar:6.0.5]
    at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:903) ~[spring-webmvc-6.0.5.jar:6.0.5]
    at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:705) ~[tomcat-embed-core-10.1.5.jar:6.0]
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:885) ~[spring-webmvc-6.0.5.jar:6.0.5]
    at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:814) ~[tomcat-embed-core-10.1.5.jar:6.0]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:223) ~[tomcat-embed-core-10.1.5.jar:10.1.5]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:158) ~[tomcat-embed-core-10.1.5.jar:10.1.5]
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-10.1.5.jar:10.1.5]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:185) ~[tomcat-embed-core-10.1.5.jar:10.1.5]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:158) ~[tomcat-embed-core-10.1.5.jar:10.1.5]
    at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-6.0.5.jar:6.0.5]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) ~[spring-web-6.0.5.jar:6.0.5]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:185) ~[tomcat-embed-core-10.1.5.jar:10.1.5]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:158) ~[tomcat-embed-core-10.1.5.jar:10.1.5]
    at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-6.0.5.jar:6.0.5]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) ~[spring-web-6.0.5.jar:6.0.5]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:185) ~[tomcat-embed-core-10.1.5.jar:10.1.5]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:158) ~[tomcat-embed-core-10.1.5.jar:10.1.5]
    at org.springframework.web.filter.ServerHttpObservationFilter.doFilterInternal(ServerHttpObservationFilter.java:109) ~[spring-web-6.0.5.jar:6.0.5]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) ~[spring-web-6.0.5.jar:6.0.5]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:185) ~[tomcat-embed-core-10.1.5.jar:10.1.5]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:158) ~[tomcat-embed-core-10.1.5.jar:10.1.5]
    at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-6.0.5.jar:6.0.5]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) ~[spring-web-6.0.5.jar:6.0.5]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:185) ~[tomcat-embed-core-10.1.5.jar:10.1.5]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:158) ~[tomcat-embed-core-10.1.5.jar:10.1.5]
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:177) ~[tomcat-embed-core-10.1.5.jar:10.1.5]
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97) ~[tomcat-embed-core-10.1.5.jar:10.1.5]
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542) ~[tomcat-embed-core-10.1.5.jar:10.1.5]
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:119) ~[tomcat-embed-core-10.1.5.jar:10.1.5]
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) ~[tomcat-embed-core-10.1.5.jar:10.1.5]
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) ~[tomcat-embed-core-10.1.5.jar:10.1.5]
    at org.apache.catalina.valves.RemoteIpValve.invoke(RemoteIpValve.java:741) ~[tomcat-embed-core-10.1.5.jar:10.1.5]
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:357) ~[tomcat-embed-core-10.1.5.jar:10.1.5]
    at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:400) ~[tomcat-embed-core-10.1.5.jar:10.1.5]
    at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) ~[tomcat-embed-core-10.1.5.jar:10.1.5]
    at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:859) ~[tomcat-embed-core-10.1.5.jar:10.1.5]
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1734) ~[tomcat-embed-core-10.1.5.jar:10.1.5]
    at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52) ~[tomcat-embed-core-10.1.5.jar:10.1.5]
    at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191) ~[tomcat-embed-core-10.1.5.jar:10.1.5]
    at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) ~[tomcat-embed-core-10.1.5.jar:10.1.5]
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-10.1.5.jar:10.1.5]
    at java.base/java.lang.Thread.run(Unknown Source) ~[na:na]
seanmayer commented 1 year ago

https://github.com/seanmayer/spring-microservices-refresher/commit/3f75074770076c98ce5ea93ec9e7b5ef6f0e0dde