HikariPool-1 - Verbindung ist nicht verfügbar, Zeitüberschreitung der Anfrage nach

Question

Ich verwende HikariCP 2.4.7 für Verbindungspool. Alles ist in Ordnung unmittelbar nach dem Start der Anwendung, aber nach einiger Zeit ohne getConnection() Aufruf erhalte ich diese Störung, wenn ich versuche zu getConnection():

java.sql.SQLTransientConnectionException: HikariPool-1 - Connection is not available, request timed out after 42734ms. 
    at com.zaxxer.hikari.pool.HikariPool.createTimeoutException(HikariPool.java:555) 
    at com.zaxxer.hikari.pool.HikariPool.getConnection(HikariPool.java:188) 
    at com.zaxxer.hikari.pool.HikariPool.getConnection(HikariPool.java:147) 
    at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:99) 
    at pl.airly.database.ComplexOperations.getSensorDataFromArea(ComplexOperations.java:310) 
    at pl.airly.database.ComplexOperations.getMeasurementsInAreaWithinTimeFrame(ComplexOperations.java:201) 
    at pl.airly.ResponseGenerator.getResponseAdequateToRequest(ResponseGenerator.java:139) 
    at sun.reflect.GeneratedMethodAccessor24.invoke(Unknown Source) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
    at java.lang.reflect.Method.invoke(Method.java:498) 
    at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:221) 
    at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:136) 
    at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:114) 
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827) 
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738) 
    at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85) 
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:963) 
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:897) 
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) 
    at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:622) 
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:729) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:230) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) 
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) 
    at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) 
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) 
    at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:87) 
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) 
    at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:77) 
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) 
    at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197) 
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) 
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198) 
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:108) 
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:522) 
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) 
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79) 
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) 
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:349) 
    at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:1110) 
    at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) 
    at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:785) 
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1425) 
    at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) 
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) 
    at java.lang.Thread.run(Thread.java:745) 

Während des Startvorgangs ich Initialisierung HikariDataSource:

hikariDataSource = new HikariDataSource(); 
hikariDataSource.setDriverClassName("org.postgresql.Driver"); 
hikariDataSource.setUsername(DATABASE_USER_NAME); 
hikariDataSource.setPassword(DATABASE_PASSWORD); 
hikariDataSource.setJdbcUrl(DATABASE_URL); 
hikariDataSource.setLeakDetectionThreshold(5000); 

Und dann benutze ich es so:

try(java.sql.Connection conn = Connection.hikariDataSource.getConnection()) { 
      Record1 record1 = DSL.using(conn).select(SENSOR.ID) //jOOQ 
        .from(SENSOR) 
        .where(SENSOR.ID.equal(1)) 
        .limit(1) 
        .fetchOne(); 
      Debug.println(record1.getValue(0).toString()); 
     } catch (SQLException e) { 
      e.printStackTrace(); 
     } 

Was mache ich falsch? Wie behebt man dieses Problem?

Edit:

das Hinzufügen löst das Problem:

hikariDataSource.setIdleTimeout(60000); 
hikariDataSource.setConnectionTimeout(60000); 
hikariDataSource.setValidationTimeout(3000); 
hikariDataSource.setLoginTimeout(5); 
hikariDataSource.setMaxLifetime(60000); 

es etwas mit dem Server Schließen von Verbindungen verbunden sein kann, bevor HikariCP tut, aber ich bin mir nicht sicher. Jeder Kommentar dazu wäre willkommen.

Answer 1

ich mit den Worten beginnen, als ich nicht ein Java-Programmierer bin, können Sie auch versuchen, jOOQ DSL zu schließen:

try(java.sql.Connection conn = Connection.hikariDataSource.getConnection()) { 
     try (Record1 record1 = DSL.using(conn).select(SENSOR.ID)) { 
       .from(SENSOR) 
       .where(SENSOR.ID.equal(1)) 
       .limit(1) 
       .fetchOne(); 
     Debug.println(record1.getValue(0).toString()); 
    } catch (Exception e) { 
     e.printStackTrace(); 
    } 
} catch (SQLException e) { 
    e.printStackTrace(); 
}