ich ein langen Lauf Problem mit meinem Jersey REST-Anwendung gehabt habe, dass der Frühling nutzt jdbcTemplate
zu grundlegenden SELECT
, INSERT
, UPDATE
zu machen, und DELETE
Abfragen unserer Datenbank (DB2 wir verwenden).Frühling jdbcTemplate - Verbindung geschlossen ist
Dieses Problem tritt alle paar Tage auf, daher habe ich keine System.out des Inhalts des Fehlers (beim nächsten Mal werde ich einen Screenshot des Fehlers hinzufügen). Alle paar Tage oder so beginnen einige der Abfragen in meinen REST-Diensten aufgrund einer "Verbindung ist geschlossen". Error. Immer wenn ich diesen Fehler erhalte, starte ich einfach den Tomcat-Anwendungsserver neu und das Problem wird für einige Tage gelöst, bis es erneut auftritt.
Das Neustarten des Servers alle paar Tage wird für unsere Endbenutzer keine akzeptable Lösung sein, sobald sie damit beginnen. Wenn also irgendjemand eine Idee hat, warum dies passiert und wie ich das Problem dauerhaft lösen kann, lass es mich wissen.
Hier ist mein Frühling Datenquelle config:
package com.my.package;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.boot.autoconfigure.jdbc.DataSourceBuilder;
import javax.sql.DataSource;
@Configuration
public class DataSourceConfig {
@Bean (name = "dataSource1")
@Primary
@ConfigurationProperties(prefix = "ds1.datasource")
public DataSource dataSource1() {
return DataSourceBuilder.create().build();
}
@Bean(name = "ds1")
public JdbcTemplate jdbcTemplate1(@Qualifier("dataSource1") DataSource dataSource1) {
return new JdbcTemplate(dataSource1);
}
@Bean (name = "dataSource2")
@ConfigurationProperties(prefix="ds2.datasource")
public DataSource dataSource2() { return DataSourceBuilder.create().build(); }
@Bean(name = "ds2")
public JdbcTemplate jdbcTemplate2(@Qualifier("dataSource2") DataSource dataSource2) {
return new JdbcTemplate(dataSource2);
}
}
mein application.properties hier:
ds1.datasource.url=url1
ds1.datasource.username=user1
ds1.datasource.password=pass1
ds1.datasource.driver-class-name=com.ibm.db2.jcc.DB2Driver
ds2.datasource.url=url2
ds2.datasource.username=user2
ds2.datasource.password=pass2
ds2.datasource.driver-class-name=com.ibm.db2.jcc.DB2Driver
Mein pom.xml, wo ich die Feder jdbc und Treiber Abhängigkeiten umfassen
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
<dependency>
<groupId>ibm.db2</groupId>
<artifactId>db2jcc4.jar</artifactId>
<version>4.19.26</version>
</dependency>
Und schließlich, ein Beispiel für das Ausführen einer einfachen SELECT
Abfrage mit jdbcTempla te
@Autowired
@Qualifier("ds1")
private JdbcTemplate jdbcTemplate;
List<Something> sampleQuery(){
String sqlQuery = "SELECT * FROM TABLE";
try {
return this.jdbcTemplate.query(
sqlQuery,
(rs, rowNum) -> {
Something something = new Something();
something.setVal1(rs.getString("FIELD1").trim());
something.setVal2(rs.getString("FIELD2").trim());
return something;
});
}catch (Exception ex){
ex.printStackTrace();
System.out.println("error...");
return new ArrayList<>();
}
}
EDIT: Fehler geschieht immer noch. Dieses Mal kann ich das Protokoll erfassen. Es sagt im Grunde nur "fehlgeschlagen, eine neu eingerichtete Verbindung zu validieren." Ich weiß aber nicht warum.
org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is java.sql.SQLException: Failed to validate a newly established connection.
at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:80)
at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:615)
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:680)
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:712)
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:722)
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:772)
at org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory$1.invoke(ResourceMethodInvocationHandlerFactory.java:81)
at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher$1.run(AbstractJavaResourceMethodDispatcher.java:144)
at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:161)
at org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$TypeOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:205)
at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:99)
at org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:389)
at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:347)
at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:102)
at org.glassfish.jersey.server.ServerRuntime$2.run(ServerRuntime.java:326)
at org.glassfish.jersey.internal.Errors$1.call(Errors.java:271)
at org.glassfish.jersey.internal.Errors$1.call(Errors.java:267)
at org.glassfish.jersey.internal.Errors.process(Errors.java:315)
at org.glassfish.jersey.internal.Errors.process(Errors.java:297)
at org.glassfish.jersey.internal.Errors.process(Errors.java:267)
at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:317)
at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:305)
at org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:1154)
at org.glassfish.jersey.servlet.WebComponent.serviceImpl(WebComponent.java:473)
at org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:427)
at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:388)
at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:341)
at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:228)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:292)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.springframework.boot.actuate.autoconfigure.EndpointWebMvcAutoConfiguration$ApplicationContextHeaderFilter.doFilterInternal(EndpointWebMvcAutoConfiguration.java:261)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.springframework.boot.actuate.trace.WebRequestTraceFilter.doFilterInternal(WebRequestTraceFilter.java:115)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
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:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
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:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
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:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:121)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.springframework.boot.actuate.autoconfigure.MetricsFilter.doFilterInternal(MetricsFilter.java:103)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:522)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1095)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:672)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1502)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1458)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$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)
Caused by: java.sql.SQLException: Failed to validate a newly established connection.
at org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:811)
at org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:626)
at org.apache.tomcat.jdbc.pool.ConnectionPool.getConnection(ConnectionPool.java:185)
at org.apache.tomcat.jdbc.pool.DataSourceProxy.getConnection(DataSourceProxy.java:127)
at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:111)
at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:77)
... 81 more
EDIT # 2: Schließlich Markierung Antwort des @ Exoddus als die richtige. Nachdem ich seine Antwort gelesen und die Spring JDBC-Dokumentation durchgesehen hatte (die mich zu der zu Grunde liegenden Tomcat-JDBC-Verbindungspool-Dokumentation führte), fing ich an, mit vielen verschiedenen Eigenschaften herumzuspielen, bis es einfach funktionierte.
Hier ist die aktuelle Konfiguration, die ich in meiner Produktionsumgebung:
ds1.datasource.url=jdbc:db2://database.domain.com:12345/DBMS
ds1.datasource.username=admin
ds1.datasource.password=admin
ds1.datasource.driver-class-name=com.ibm.db2.jcc.DB2Driver
ds1.datasource.max-active=200
ds1.datasource.max-idle=200
ds1.datasource.max-wait=20000
ds1.datasource.min-idle=50
ds1.datasource.test-while-idle=true
ds1.datasource.test-on-borrow=true
ds1.datasource.validation-query=SELECT 1 FROM SYSIBM.SYSDUMMY1
ds1.datasource.time-between-eviction-runs-millis=30000
ds1.datasource.remove-abandoned=true
ds1.datasource.remove-abandoned-timeout=30
ds1.datasource.abandon-when-percentage-full=50
ds1.datasource.initial-size=50
ds1.datasource.jdbcInterceptors=ResetAbandonedTimer
Wiederholen für DS2. Diese Konfiguration hat gut funktioniert, seit ich sie vor ungefähr 6 Monaten implementiert habe.
Verwenden Sie einen Verbindungspool? – Ralph
Ich glaube, ich mache? Ich denke, 'Spring-Boot-Starter-jdbc' verwendet Tomcat-JDBC Pooling als Standard – bscott
Dank für das Tracking dieser 6 Monate später, akzeptieren Sie die Antwort und teilen Sie Ihre Gedanken! – exoddus