我们最近开始在生产服务器上遇到问题，应用程序在一段时间内突然开始失败所有出站请求（调用公共API /本地数据库），然后再次请求开始成功完成，然后又过了一段时间失败。 每次我重新启动Tomcat的问题消失了一段时间，然后再次出现，每重新启动tomcat的问题开始出现在较less的时间，直到我必须重新启动整个服务器，以确保一个漫长的稳定期。
我查看了所有通过stackoverflow和谷歌search结果，而不是build议的解决scheme之一或调查path导致我解决这个问题。
我的服务器设置是： – Windows Server 2008 R2 – Tomcat 7.0.59 – JRE 7
我已经使用“netstat -ano”build议在stackoverflow.com上的答案 – 我缺less的参考，对此感到遗憾 – 检查我的应用程序是否泄漏连接，我寻找CLOSE_WAIT状态连接，似乎没有泄漏，具有CLOSE_WAIT状态的连接不会长时间生存，大部分时间是0，最多1或2。
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我已经成功设置了preferIPv4Stack java选项setx _JAVA_OPTIONS -Djava.net.preferIPv4Stack=true ，但是没有成功。 无论如何，我猜它与它无关，因为如果是的话，我的服务器将无法发送任何成功的请求，对吗？ 在我的情况下，在Tomcat重新启动后，服务器成功发送请求x个小时，然后随机启动失败，直到所有请求都失败。
有人能指出我在调查这个问题的方向吗？ 我应该找什么？
任何帮助表示赞赏。
编辑：
日志：
org.springframework.web.client.ResourceAccessException: I/O error on POST request for "https://MYURL.COM": Permission denied: connect; nested exception is java.net.socketException: Permission denied: connect at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:524) ~[spring-web-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.web.client.RestTemplate.execute(RestTemplate.java:472) ~[spring-web-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.web.client.RestTemplate.exchange(RestTemplate.java:420) ~[spring-web-3.2.8.RELEASE.jar:3.2.8.RELEASE] at model.RestTemplateClient.AbstractRestClient.doRequest(AbstractRestClient.java:50) [OutswitchCore.jar:?] at clients.KigoRestClient.doRequest(KigoRestClient.java:57) [KigoAdapter.jar:?] at controller.KigoController.getProperty(KigoController.java:673) [KigoAdapter.jar:?] at controller.KigoController.getProperty(KigoController.java:1) [KigoAdapter.jar:?] at KigoAdapter.getProperty(KigoAdapter.java:108) [KigoAdapter.jar:?] at com.codefish.pcms.channel.processors.PmsActionExecutor.execute(PmsActionExecutor.java:73) [OutswitchCore.jar:?] at com.codefish.hibernate.HibernateThread.run(HibernateThread.java:27) [FishTankJava.jar:?] at java.util.concurrent.ThreadPoolExecutor.runWorker(UnkNown Source) [?:1.7.0_76] at java.util.concurrent.ThreadPoolExecutor$Worker.run(UnkNown Source) [?:1.7.0_76] at java.lang.Thread.run(UnkNown Source) [?:1.7.0_76] Caused by: java.net.socketException: Permission denied: connect at java.net.DualStackPlainSocketImpl.connect0(Native Method) ~[?:1.7.0_76] at java.net.DualStackPlainSocketImpl.socketConnect(UnkNown Source) ~[?:1.7.0_76] at java.net.AbstractPlainSocketImpl.doConnect(UnkNown Source) ~[?:1.7.0_76] at java.net.AbstractPlainSocketImpl.connectToAddress(UnkNown Source) ~[?:1.7.0_76] at java.net.AbstractPlainSocketImpl.connect(UnkNown Source) ~[?:1.7.0_76] at java.net.PlainSocketImpl.connect(UnkNown Source) ~[?:1.7.0_76] at java.net.socksSocketImpl.connect(UnkNown Source) ~[?:1.7.0_76] at java.net.socket.connect(UnkNown Source) ~[?:1.7.0_76] at sun.security.ssl.SSLSocketImpl.connect(UnkNown Source) ~[?:1.7.0_76] at sun.security.ssl.BaseSSLSocketImpl.connect(UnkNown Source) ~[?:1.7.0_76] at sun.net.NetworkClient.doConnect(UnkNown Source) ~[?:1.7.0_76] at sun.net.www.http.HttpClient.openServer(UnkNown Source) ~[?:1.7.0_76] at sun.net.www.http.HttpClient.openServer(UnkNown Source) ~[?:1.7.0_76] at sun.net.www.protocol.https.HttpsClient.<init>(UnkNown Source) ~[?:1.7.0_76] at sun.net.www.protocol.https.HttpsClient.New(UnkNown Source) ~[?:1.7.0_76] at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(UnkNown Source) ~[?:1.7.0_76] at sun.net.www.protocol.http.HttpURLConnection.plainConnect(UnkNown Source) ~[?:1.7.0_76] at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(UnkNown Source) ~[?:1.7.0_76] at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(UnkNown Source) ~[?:1.7.0_76] at org.springframework.http.client.SimpleBufferingClientHttpRequest.executeInternal(SimpleBufferingClientHttpRequest.java:76) ~[spring-web-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.http.client.AbstractBufferingClientHttpRequest.executeInternal(AbstractBufferingClientHttpRequest.java:46) ~[spring-web-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.http.client.AbstractClientHttpRequest.execute(AbstractClientHttpRequest.java:49) ~[spring-web-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:509)
其他日志部分：
ERROR org.quartz.core.ErrorLogger - An error occurred while scanning for the next triggers to fire. org.quartz.JobPersistenceException: Failed to obtain DB connection from data source 'springNonTxDataSource.quartzJob': com.MysqL.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. at org.quartz.impl.jdbcjobstore.JobStoreCMT.getNonManagedTXConnection(JobStoreCMT.java:168) ~[quartz-2.2.0.jar:?] at org.quartz.impl.jdbcjobstore.JobStoreSupport.executeInNonManagedTXLock(JobStoreSupport.java:3774) ~[quartz-2.2.0.jar:?] at org.quartz.impl.jdbcjobstore.JobStoreSupport.acquireNextTriggers(JobStoreSupport.java:2759) ~[quartz-2.2.0.jar:?] at org.quartz.core.QuartzSchedulerThread.run(QuartzSchedulerThread.java:264) [quartz-2.2.0.jar:?] Caused by: com.MysqL.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:1.7.0_76] at sun.reflect.NativeConstructorAccessorImpl.newInstance(UnkNown Source) ~[?:1.7.0_76] at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(UnkNown Source) ~[?:1.7.0_76] at java.lang.reflect.Constructor.newInstance(UnkNown Source) ~[?:1.7.0_76] at com.MysqL.jdbc.Util.handleNewInstance(Util.java:377) ~[mysql-connector-java-5.1.34-bin.jar:5.1.34] at com.MysqL.jdbc.sqlError.createCommunicationsException(sqlError.java:1036) ~[mysql-connector-java-5.1.34-bin.jar:5.1.34] at com.MysqL.jdbc.MysqLIO.<init>(MysqLIO.java:338) ~[mysql-connector-java-5.1.34-bin.jar:5.1.34] at com.MysqL.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2232) ~[mysql-connector-java-5.1.34-bin.jar:5.1.34] at com.MysqL.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2265) ~[mysql-connector-java-5.1.34-bin.jar:5.1.34] at com.MysqL.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2064) ~[mysql-connector-java-5.1.34-bin.jar:5.1.34] at com.MysqL.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:790) ~[mysql-connector-java-5.1.34-bin.jar:5.1.34] at com.MysqL.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:44) ~[mysql-connector-java-5.1.34-bin.jar:5.1.34] at sun.reflect.GeneratedConstructorAccessor54.newInstance(UnkNown Source) ~[?:?] at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(UnkNown Source) ~[?:1.7.0_76] at java.lang.reflect.Constructor.newInstance(UnkNown Source) ~[?:1.7.0_76] at com.MysqL.jdbc.Util.handleNewInstance(Util.java:377) ~[mysql-connector-java-5.1.34-bin.jar:5.1.34] at com.MysqL.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:395) ~[mysql-connector-java-5.1.34-bin.jar:5.1.34] at com.MysqL.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:325) ~[mysql-connector-java-5.1.34-bin.jar:5.1.34] at org.springframework.jdbc.datasource.SimpleDriverDataSource.getConnectionFromDriver(SimpleDriverDataSource.java:140) ~[spring-jdbc-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.jdbc.datasource.AbstractDriverBasedDataSource.getConnectionFromDriver(AbstractDriverBasedDataSource.java:153) ~[spring-jdbc-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.jdbc.datasource.AbstractDriverBasedDataSource.getConnection(AbstractDriverBasedDataSource.java:119) ~[spring-jdbc-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.scheduling.quartz.LocalDataSourceJobStore$2.getConnection(LocalDataSourceJobStore.java:131) ~[spring-context-support-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.quartz.utils.DBConnectionManager.getConnection(DBConnectionManager.java:108) ~[quartz-2.2.0.jar:?] at org.quartz.impl.jdbcjobstore.JobStoreCMT.getNonManagedTXConnection(JobStoreCMT.java:165) ~[quartz-2.2.0.jar:?] ... 3 more Caused by: java.net.socketException: Permission denied: connect at java.net.DualStackPlainSocketImpl.connect0(Native Method) ~[?:1.7.0_76] at java.net.DualStackPlainSocketImpl.socketConnect(UnkNown Source) ~[?:1.7.0_76] at java.net.AbstractPlainSocketImpl.doConnect(UnkNown Source) ~[?:1.7.0_76] at java.net.AbstractPlainSocketImpl.connectToAddress(UnkNown Source) ~[?:1.7.0_76] at java.net.AbstractPlainSocketImpl.connect(UnkNown Source) ~[?:1.7.0_76] at java.net.PlainSocketImpl.connect(UnkNown Source) ~[?:1.7.0_76] at java.net.socksSocketImpl.connect(UnkNown Source) ~[?:1.7.0_76] at java.net.socket.connect(UnkNown Source) ~[?:1.7.0_76] at com.MysqL.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:213) ~[mysql-connector-java-5.1.34-bin.jar:5.1.34] at com.MysqL.jdbc.MysqLIO.<init>(MysqLIO.java:297) ~[mysql-connector-java-5.1.34-bin.jar:5.1.34] at com.MysqL.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2232) ~[mysql-connector-java-5.1.34-bin.jar:5.1.34] at com.MysqL.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2265) ~[mysql-connector-java-5.1.34-bin.jar:5.1.34] at com.MysqL.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2064) ~[mysql-connector-java-5.1.34-bin.jar:5.1.34] at com.MysqL.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:790) ~[mysql-connector-java-5.1.34-bin.jar:5.1.34] at com.MysqL.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:44) ~[mysql-connector-java-5.1.34-bin.jar:5.1.34] at sun.reflect.GeneratedConstructorAccessor54.newInstance(UnkNown Source) ~[?:?] at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(UnkNown Source) ~[?:1.7.0_76] at java.lang.reflect.Constructor.newInstance(UnkNown Source) ~[?:1.7.0_76] at com.MysqL.jdbc.Util.handleNewInstance(Util.java:377) ~[mysql-connector-java-5.1.34-bin.jar:5.1.34] at com.MysqL.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:395) ~[mysql-connector-java-5.1.34-bin.jar:5.1.34] at com.MysqL.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:325) ~[mysql-connector-java-5.1.34-bin.jar:5.1.34] at org.springframework.jdbc.datasource.SimpleDriverDataSource.getConnectionFromDriver(SimpleDriverDataSource.java:140) ~[spring-jdbc-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.jdbc.datasource.AbstractDriverBasedDataSource.getConnectionFromDriver(AbstractDriverBasedDataSource.java:153) ~[spring-jdbc-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.jdbc.datasource.AbstractDriverBasedDataSource.getConnection(AbstractDriverBasedDataSource.java:119) ~[spring-jdbc-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.scheduling.quartz.LocalDataSourceJobStore$2.getConnection(LocalDataSourceJobStore.java:131) ~[spring-context-support-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.quartz.utils.DBConnectionManager.getConnection(DBConnectionManager.java:108) ~[quartz-2.2.0.jar:?] at org.quartz.impl.jdbcjobstore.JobStoreCMT.getNonManagedTXConnection(JobStoreCMT.java:165) ~[quartz-2.2.0.jar:?]
编辑（NETSTAT -ANO结果在pastebin.com链接）：
http://pastebin.com/JDnizrAs
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