We are using following Spring boot and Camunda version. Following are the details of runtime.
- JDK - redhat-openjdk-18/openjdk18-openshift
- Containerized in Docker version - 20.10.11, build 761974f
- OS - Red Hat Enterprise Linux Server release 7.6 (Maipo)
- Total no of BPMN files deployed - 34 - There are mostly service tasks and no user task is used. 4 of the BPMN are batch processes which runs mostly at night 11 PM
- JAVA_OPTS="-Xms512m -Xmx2048m -XX:+UseStringDeduplication -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=/opt/heapdump"
Earlier we had just 2 nodes with 2 CPU configured in each node. We are been getting OOM since some time. So we updated to have the app run on 3 nodes . In terms of CPU settings, the app can take 8 CPU’s in each node now. In spite of that we are still getting OOM. We can’t simulate this in lower environment.
Can someone please provide some guidance in terms of how to debug this further and what I can do to make this better?
Here is the image of heap dump analysis from Heap Analyzer
H2 Application.properties
#-----Datasource properties--------#
spring.datasource.driver-clas=oracle.jdbc.OracleDriver
spring.jpa.show-sql=false
spring.jpa.hibernate.ddl-auto=none
spring.jpa.open-in-view=false
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.Oracle12cDialect
spring.datasource.validationQuery=SELECT 1 FROM DUAL
spring.jpa.hibernate.use-new-id-generator-mappings=true
spring.jpa.properties.hibernate.default_schema=WORKFLOW
camunda.bpm.generic-properties.properties.failed-job-retry-time-cycle=R0/PT5M
camunda.bpm.history-level=NONE
H2 Pom.xml
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.7.0</version>
<relativePath />
</parent>
<dependency>
<groupId>org.camunda.bpm.springboot</groupId>
<artifactId>camunda-bpm-spring-boot-starter-rest</artifactId>
<version>3.4.4</version>
</dependency>
<dependency>
<groupId>org.camunda.bpm.springboot</groupId>
<artifactId>camunda-bpm-spring-boot-starter-webapp</artifactId>
<version>3.4.4</version>
</dependency>
<dependency>
<groupId>org.camunda.connect</groupId>
<artifactId>camunda-connect-http-client</artifactId>
<version>1.3.0</version>
</dependency>
<dependency>
<groupId>org.camunda.bpm</groupId>
<artifactId>camunda-engine-plugin-spin</artifactId>
<version>7.12.0</version>
</dependency>
<dependency>
<groupId>org.camunda.spin</groupId>
<artifactId>camunda-spin-dataformat-json-jackson</artifactId>
<version>1.10.1</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.datatype</groupId>
<artifactId>jackson-datatype-jdk8</artifactId>
<version>2.12.3</version>
</dependency>
<dependency>
<groupId>org.camunda.bpm</groupId>
<artifactId>camunda-engine-plugin-connect</artifactId>
<version>7.12.0</version>
</dependency>
<!-- JDK 8 Compatible. As soon we move to JDK 11 or higher we need to update this -->
<dependency>
<groupId>com.oracle.database.jdbc</groupId>
<artifactId>ojdbc8</artifactId>
<version>19.14.0.0</version>
</dependency>
H2 Log
e[2m2022-07-14 09:37:25.759e[0;39m e[32m INFOe[0;39m e[35m1e[0;39m e[2m—e[0;39m e[2m[nio-8080-exec-3]e[0;39m e[36mo.apache.coyote.http11.Http11Processor e[0;39m e[2m:e[0;39m Error parsing HTTP request header
Note: further occurrences of HTTP request parsing errors will be logged at DEBUG level.
java.lang.IllegalArgumentException: Invalid character found in the request target [/ ]. The valid characters are defined in RFC 7230 and RFC 3986
…
e[2m2022-07-14 09:41:08.546e[0;39m e[33m WARNe[0;39m e[35m1e[0;39m e[2m—e[0;39m e[2m[l-1 housekeeper]e[0;39m e[36mcom.zaxxer.hikari.pool.HikariPool e[0;39m e[2m:e[0;39m HikariPool-1 - Thread starvation or clock leap detected (housekeeper delta=58s933ms383?s398ns).
e[2m2022-07-14 09:42:25.468e[0;39m e[31mERRORe[0;39m e[35m1e[0;39m e[2m—e[0;39m e[2m[etrics Reporter]e[0;39m e[36mo.h.engine.jdbc.spi.SqlExceptionHelper e[0;39m e[2m:e[0;39m HikariPool-1 - Connection is not available, request timed out after 30519ms.
e…
e[2m2022-07-14 09:44:48.762e[0;39m e[33m WARNe[0;39m e[35m1e[0;39m e[2m—e[0;39m e[2m[etrics Reporter]e[0;39m e[36morg.camunda.bpm.engine.metrics e[0;39m e[2m:e[0;39m ENGINE-18002 Could not collect and log metrics
…
e[2m2022-07-14 09:44:48.762e[0;39m e[31mERRORe[0;39m e[35m1e[0;39m e[2m—e[0;39m e[2m[ingJobExecutor]]e[0;39m e[36morg.camunda.bpm.engine.jobexecutor e[0;39m e[2m:e[0;39m ENGINE-14019 Exception during job acquisition Could not open JPA EntityManager for transaction; nested exception is org.hibernate.exception.JDBCConnectionException: Unable to acquire JDBC Connection
Exception in thread “http-nio-8080-exec-58” java.lang.OutOfMemoryError: Java heap space
e[2m2022-07-14 11:30:48.735e[0;39m e[31mERRORe[0;39m e[35m1e[0;39m e[2m—e[0;39m e[2m[io-8080-exec-41]e[0;39m e[36mo.a.c.c.C.[.[.[.[dispatcherServlet] e[0;39m e[2m:e[0;39m Servlet.service() for servlet [dispatcherServlet] in context with path [/workflow] threw exception [Request processing failed; nested exception is org.springframework.transaction.CannotCreateTransactionException: Could not open JPA EntityManager for transaction; nested exception is org.hibernate.exception.JDBCConnectionException: Unable to acquire JDBC Connection] with root cause
e[2m2022-07-14 11:42:26.753e[0;39m e[33m WARNe[0;39m e[35m1e[0;39m e[2m—e[0;39m e[2m[io-8080-exec-62]e[0;39m e[36mo.h.engine.jdbc.spi.SqlExceptionHelper e[0;39m e[2m:e[0;39m SQL Error: 17002, SQLState: 08006
e[2m2022-07-14 11:42:26.753e[0;39m e[31mERRORe[0;39m e[35m1e[0;39m e[2m—e[0;39m e[2m[io-8080-exec-62]e[0;39m e[36mo.h.engine.jdbc.spi.SqlExceptionHelper e[0;39m e[2m:e[0;39m IO Error: Connection reset by peer, Authentication lapse 0 ms.
e[2m2022-07-14 11:42:26.753e[0;39m e[31mERRORe[0;39m e[35m1e[0;39m e[2m—e[0;39m e[2m[io-8080-exec-71]e[0;39m e[36mo.h.engine.jdbc.spi.SqlExceptionHelper e[0;39m e[2m:e[0;39m IO Error: Connection reset by peer, Authentication lapse 0 ms.
e[2m2022-07-14 11:42:28.198e[0;39m e[31mERRORe[0;39m e[35m1e[0;39m e[2m—e[0;39m e[2m[io-8080-exec-76]e[0;39m e[36mo.h.engine.jdbc.spi.SqlExceptionHelper e[0;39m e[2m:e[0;39m IO Error: Connection reset by peer, Authentication lapse 0 ms.
e[2m2022-07-14 11:42:26.017e[0;39m e[33m WARNe[0;39m e[35m1e[0;39m e[2m—e[0;39m e[2m[nio-8080-exec-5]e[0;39m e[36mo.h.engine.jdbc.spi.SqlExceptionHelper e[0;39m e[2m:e[0;39m SQL Error: 0, SQLState: 08006
e[2m2022-07-14 11:50:56.594e[0;39m e[31mERRORe[0;39m e[35m1e[0;39m e[2m—e[0;39m e[2m[io-8080-exec-40]e[0;39m e[36mo.a.c.c.C.[Tomcat].[localhost] e[0;39m e[2m:e[0;39m Exception Processing ErrorPage[errorCode=0, location=/error]
org.apache.catalina.connector.ClientAbortException: java.io.IOException: Connection reset by peer
at org.apache.catalina.connector.OutputBuffer.doFlush(OutputBuffer.java:310) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.catalina.connector.OutputBuffer.flush(OutputBuffer.java:273) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.catalina.connector.CoyoteOutputStream.flush(CoyoteOutputStream.java:118) ~[tomcat-embed-core-9.0.63.jar!/:na]
at java.io.FilterOutputStream.flush(FilterOutputStream.java:140) ~[na:1.8.0_181]
at com.fasterxml.jackson.core.json.UTF8JsonGenerator.flush(UTF8JsonGenerator.java:1187) ~[jackson-core-2.13.3.jar!/:2.13.3]
at com.fasterxml.jackson.databind.ObjectWriter.writeValue(ObjectWriter.java:1009) ~[jackson-databind-2.13.3.jar!/:2.13.3]
at org.springframework.http.converter.json.AbstractJackson2HttpMessageConverter.writeInternal(AbstractJackson2HttpMessageConverter.java:456) ~[spring-web-5.3.20.jar!/:5.3.20]
at org.springframework.http.converter.AbstractGenericHttpMessageConverter.write(AbstractGenericHttpMessageConverter.java:104) ~[spring-web-5.3.20.jar!/:5.3.20]
at org.springframework.web.servlet.mvc.method.annotation.AbstractMessageConverterMethodProcessor.writeWithMessageConverters(AbstractMessageConverterMethodProcessor.java:290) ~[spring-webmvc-5.3.20.jar!/:5.3.20]
at org.springframework.web.servlet.mvc.method.annotation.HttpEntityMethodProcessor.handleReturnValue(HttpEntityMethodProcessor.java:219) ~[spring-webmvc-5.3.20.jar!/:5.3.20]
at org.springframework.web.method.support.HandlerMethodReturnValueHandlerComposite.handleReturnValue(HandlerMethodReturnValueHandlerComposite.java:78) ~[spring-web-5.3.20.jar!/:5.3.20]
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:135) ~[spring-webmvc-5.3.20.jar!/:5.3.20]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:895) ~[spring-webmvc-5.3.20.jar!/:5.3.20]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:808) ~[spring-webmvc-5.3.20.jar!/:5.3.20]
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.3.20.jar!/:5.3.20]
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1067) ~[spring-webmvc-5.3.20.jar!/:5.3.20]
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:963) ~[spring-webmvc-5.3.20.jar!/:5.3.20]
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.3.20.jar!/:5.3.20]
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909) ~[spring-webmvc-5.3.20.jar!/:5.3.20]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:681) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.3.20.jar!/:5.3.20]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:764) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.3.20.jar!/:5.3.20]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.20.jar!/:5.3.20]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:102) ~[spring-web-5.3.20.jar!/:5.3.20]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:102) ~[spring-web-5.3.20.jar!/:5.3.20]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:711) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:461) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:385) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:313) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.catalina.core.StandardHostValve.custom(StandardHostValve.java:403) [tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.catalina.core.StandardHostValve.status(StandardHostValve.java:249) [tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.catalina.core.StandardHostValve.throwable(StandardHostValve.java:344) [tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169) [tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) [tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) [tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:360) [tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:399) [tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) [tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:890) [tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1743) [tomcat-embed-core-9.0.63.jar!/:na]
e[2m2022-07-14 11:54:53.762e[0;39m e[31mERRORe[0;39m e[35m1e[0;39m e[2m—e[0;39m e[2m[nio-8080-exec-1]e[0;39m e[36mo.a.c.c.C.[Tomcat].[localhost] e[0;39m e[2m:e[0;39m Exception Processing ErrorPage[errorCode=0, location=/error]
org.apache.catalina.connector.ClientAbortException: java.io.IOException: Connection reset by peer
at org.apache.catalina.connector.OutputBuffer.doFlush(OutputBuffer.java:310) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.catalina.connector.OutputBuffer.flush(OutputBuffer.java:273) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.catalina.connector.CoyoteOutputStream.flush(CoyoteOutputStream.java:118) ~[tomcat-embed-core-9.0.63.jar!/:na]
at java.io.FilterOutputStream.flush(FilterOutputStream.java:140) ~[na:1.8.0_181]
at com.fasterxml.jackson.core.json.UTF8JsonGenerator.flush(UTF8JsonGenerator.java:1187) ~[jackson-core-2.13.3.jar!/:2.13.3]
at com.fasterxml.jackson.databind.ObjectWriter.writeValue(ObjectWriter.java:1009) ~[jackson-databind-2.13.3.jar!/:2.13.3]
at org.springframework.http.converter.json.AbstractJackson2HttpMessageConverter.writeInternal(AbstractJackson2HttpMessageConverter.java:456) ~[spring-web-5.3.20.jar!/:5.3.20]
at org.springframework.http.converter.AbstractGenericHttpMessageConverter.write(AbstractGenericHttpMessageConverter.java:104) ~[spring-web-5.3.20.jar!/:5.3.20]
at org.springframework.web.servlet.mvc.method.annotation.AbstractMessageConverterMethodProcessor.writeWithMessageConverters(AbstractMessageConverterMethodProcessor.java:290) ~[spring-webmvc-5.3.20.jar!/:5.3.20]
at org.springframework.web.servlet.mvc.method.annotation.HttpEntityMethodProcessor.handleReturnValue(HttpEntityMethodProcessor.java:219) ~[spring-webmvc-5.3.20.jar!/:5.3.20]
at org.springframework.web.method.support.HandlerMethodReturnValueHandlerComposite.handleReturnValue(HandlerMethodReturnValueHandlerComposite.java:78) ~[spring-web-5.3.20.jar!/:5.3.20]
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:135) ~[spring-webmvc-5.3.20.jar!/:5.3.20]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:895) ~[spring-webmvc-5.3.20.jar!/:5.3.20]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:808) ~[spring-webmvc-5.3.20.jar!/:5.3.20]
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.3.20.jar!/:5.3.20]
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1067) ~[spring-webmvc-5.3.20.jar!/:5.3.20]
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:963) ~[spring-webmvc-5.3.20.jar!/:5.3.20]
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.3.20.jar!/:5.3.20]
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909) ~[spring-webmvc-5.3.20.jar!/:5.3.20]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:681) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.3.20.jar!/:5.3.20]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:764) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.3.20.jar!/:5.3.20]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.20.jar!/:5.3.20]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:102) ~[spring-web-5.3.20.jar!/:5.3.20]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:102) ~[spring-web-5.3.20.jar!/:5.3.20]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:711) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:461) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:385) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:313) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.catalina.core.StandardHostValve.custom(StandardHostValve.java:403) [tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.catalina.core.StandardHostValve.status(StandardHostValve.java:249) [tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.catalina.core.StandardHostValve.throwable(StandardHostValve.java:344) [tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169) [tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) [tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) [tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:360) [tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:399) [tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) [tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:890) [tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1743) [tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191) [tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) [tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-9.0.63.jar!/:na]
at java.lang.Thread.run(Thread.java:748) [na:1.8.0_181]
Caused by: java.io.IOException: Connection reset by peer
at sun.nio.ch.FileDispatcherImpl.write0(Native Method) ~[na:1.8.0_181]
at sun.nio.ch.SocketDispatcher.write(SocketDispatcher.java:47) ~[na:1.8.0_181]
at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:93) ~[na:1.8.0_181]
at sun.nio.ch.IOUtil.write(IOUtil.java:65) ~[na:1.8.0_181]
at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:471) ~[na:1.8.0_181]
at org.apache.tomcat.util.net.NioChannel.write(NioChannel.java:135) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.doWrite(NioEndpoint.java:1384) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.tomcat.util.net.SocketWrapperBase.doWrite(SocketWrapperBase.java:773) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.tomcat.util.net.SocketWrapperBase.flushBlocking(SocketWrapperBase.java:726) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.tomcat.util.net.SocketWrapperBase.flush(SocketWrapperBase.java:716) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.coyote.http11.Http11OutputBuffer$SocketOutputBuffer.flush(Http11OutputBuffer.java:573) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.coyote.http11.filters.ChunkedOutputFilter.flush(ChunkedOutputFilter.java:157) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.coyote.http11.Http11OutputBuffer.flush(Http11OutputBuffer.java:221) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.coyote.http11.Http11Processor.flush(Http11Processor.java:1255) [tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.coyote.AbstractProcessor.action(AbstractProcessor.java:402) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.coyote.Response.action(Response.java:209) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.catalina.connector.OutputBuffer.doFlush(OutputBuffer.java:306) ~[tomcat-embed-core-9.0.63.jar!/:na]
… 53 common frames omitted
e[2m2022-07-14 11:54:53.099e[0;39m e[31mERRORe[0;39m e[35m1e[0;39m e[2m—e[0;39m e[2m[io-8080-exec-62]e[0;39m e[36mo.a.c.c.C.[.[.[.[dispatcherServlet] e[0;39m e[2m:e[0;39m Servlet.service() for servlet [dispatcherServlet] in context with path [/workflow] threw exception [Request processing failed; nested exception is org.springframework.transaction.CannotCreateTransactionException: Could not open JPA EntityManager for transaction; nested exception is org.hibernate.exception.JDBCConnectionException: Unable to acquire JDBC Connection] with root cause
java.io.IOException: Connection reset by peer
at sun.nio.ch.FileDispatcherImpl.write0(Native Method) ~[na:1.8.0_181]
at sun.nio.ch.SocketDispatcher.write(SocketDispatcher.java:47) ~[na:1.8.0_181]
at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:93) ~[na:1.8.0_181]
at sun.nio.ch.IOUtil.write(IOUtil.java:65) ~[na:1.8.0_181]
at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:471) ~[na:1.8.0_181]
at oracle.net.nt.TimeoutSocketChannel.write(TimeoutSocketChannel.java:211) ~[ojdbc8-19.14.0.0.jar!/:19.14.0.0.0]
at oracle.net.ns.NIOPacket.writeToSocketChannel(NIOPacket.java:355) ~[ojdbc8-19.14.0.0.jar!/:19.14.0.0.0]
at oracle.net.ns.NIOConnectPacket.writeToSocketChannel(NIOConnectPacket.java:247) ~[ojdbc8-19.14.0.0.jar!/:19.14.0.0.0]
at oracle.net.ns.NSProtocolNIO.negotiateConnection(NSProtocolNIO.java:127) ~[ojdbc8-19.14.0.0.jar!/:19.14.0.0.0]
at oracle.net.ns.NSProtocol.connect(NSProtocol.java:347) ~[ojdbc8-19.14.0.0.jar!/:19.14.0.0.0]
at oracle.jdbc.driver.T4CConnection.connect(T4CConnection.java:1681) ~[ojdbc8-19.14.0.0.jar!/:19.14.0.0.0]
at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:625) ~[ojdbc8-19.14.0.0.jar!/:19.14.0.0.0]
at oracle.jdbc.driver.PhysicalConnection.connect(PhysicalConnection.java:813) ~[ojdbc8-19.14.0.0.jar!/:19.14.0.0.0]
at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:80) ~[ojdbc8-19.14.0.0.jar!/:19.14.0.0.0]
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:816) ~[ojdbc8-19.14.0.0.jar!/:19.14.0.0.0]
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:620) ~[ojdbc8-19.14.0.0.jar!/:19.14.0.0.0]
at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:138) ~[HikariCP-4.0.3.jar!/:na]
at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:364) ~[HikariCP-4.0.3.jar!/:na]
at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:206) ~[HikariCP-4.0.3.jar!/:na]
at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:476) ~[HikariCP-4.0.3.jar!/:na]
at com.zaxxer.hikari.pool.HikariPool.access$100(HikariPool.java:71) ~[HikariCP-4.0.3.jar!/:na]
at com.zaxxer.hikari.pool.HikariPool$PoolEntryCreator.call(HikariPool.java:726) ~[HikariCP-4.0.3.jar!/:na]
at com.zaxxer.hikari.pool.HikariPool$PoolEntryCreator.call(HikariPool.java:712) ~[HikariCP-4.0.3.jar!/:na]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[na:1.8.0_181]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) ~[na:1.8.0_181]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) ~[na:1.8.0_181]
at java.lang.Thread.run(Thread.java:748) [na:1.8.0_181]
e[2m2022-07-14 11:54:51.751e[0;39m e[31mERRORe[0;39m e[35m1e[0;39m e[2m—e[0;39m e[2m[aTaskExecutor-3]e[0;39m e[36mo.h.engine.jdbc.spi.SqlExceptionHelper e[0;39m e[2m:e[0;39m HikariPool-1 - Connection is not available, request timed out after 32077ms.
e[2m2022-07-14 12:31:24.891e[0;39m e[31mERRORe[0;39m e[35m1e[0;39m e[2m—e[0;39m e[2m[io-8080-exec-71]e[0;39m e[36mo.a.c.c.C.[Tomcat].[localhost] e[0;39m e[2m:e[0;39m Exception Processing ErrorPage[errorCode=0, location=/error]
org.springframework.web.util.NestedServletException: Handler dispatch failed; nested exception is java.lang.OutOfMemoryError: Java heap space
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1082) ~[spring-webmvc-5.3.20.jar!/:5.3.20]
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:963) ~[spring-webmvc-5.3.20.jar!/:5.3.20]
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.3.20.jar!/:5.3.20]
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) ~[spring-webmvc-5.3.20.jar!/:5.3.20]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:655) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.3.20.jar!/:5.3.20]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:764) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.3.20.jar!/:5.3.20]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.20.jar!/:5.3.20]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:102) ~[spring-web-5.3.20.jar!/:5.3.20]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:102) ~[spring-web-5.3.20.jar!/:5.3.20]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:711) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:461) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:385) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:313) ~[tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.catalina.core.StandardHostValve.custom(StandardHostValve.java:403) [tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.catalina.core.StandardHostValve.status(StandardHostValve.java:249) [tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.catalina.core.StandardHostValve.throwable(StandardHostValve.java:344) [tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169) [tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) [tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) [tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:360) [tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:399) [tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) [tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:890) [tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1743) [tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191) [tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) [tomcat-embed-core-9.0.63.jar!/:na]
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-9.0.63.jar!/:na]
at java.lang.Thread.run(Thread.java:748) [na:1.8.0_181]
Caused by: java.lang.OutOfMemoryError: Java heap space
e[2m2022-07-14 12:31:48.117e[0;39m e[31mERRORe[0;39m e[35m1e[0;39m e[2m—e[0;39m e[2m[io-8080-exec-68]e[0;39m e[36mo.a.c.c.C.[Tomcat].[localhost] e[0;39m e[2m:e[0;39m Exception Processing ErrorPage[errorCode=0, location=/error]