Tomcat：在日志中获取“字符解码失败”;可能的恶意攻击？ [英] Tomcat: Getting 'Character decoding failed' in logs; possible malicious attack?
本文介绍了Tomcat：在日志中获取“字符解码失败”;可能的恶意攻击？的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
刚刚有一个Tomcat实例停止响应（在杀死并重新启动后，它开始正常工作），并且在日志消息中它看起来就像在它停止响应之前，有人用无效请求发送垃圾邮件。以下是日志文件的摘录：
[WARNING] [talledLocalContainer]警告：参数：字符解码失败。参数'°©©2a 2a 2a 请注意，由于解码失败，此处引用的名称和值可能会损坏。使用调试级别日志记录查看原始的，未损坏的值。
[WARNING] [talledLocalContainer] Aug 6，2012 5:23:16 PM org.apache.tomcat.util.http.Parameters processParameters
[WARNING] [talledLocalContainer]警告：参数：字符解码失败。参数'°©©2a 2a 2a 请注意，由于解码失败，此处引用的名称和值可能会损坏。使用调试级别日志记录查看原始的，未损坏的值。
[INFO] [talledLocalContainer] 19:58:04 [InputSanitizerFilter]警告：从请求中删除潜在的恶意参数：batch
[WARNING] [talledLocalContainer] Aug 6，2012 9:11:39 PM org。 apache.tomcat.util.http.Parameters processParameters
[WARNING] [talledLocalContainer]警告：参数：字符解码失败。参数说明[警告] [talledLocalContainer]8Rû£QÜPÖ◆D）ç£<％E◆<ìS
[警告] [├▒┌┌␊␍L⎺␌⎺␌┌ C├▒␋┼␊⎼]ÎS·Éä：AQØRÜ'┬␋├┴▒┌┤␊''▒⎽␉␊␊┼␋±┼⎺⎼␊␍。 N⎺├␊├├├├␊┼▒└␊▒┼␍┴▒┌┤␊─┤⎺├␊␍␊⎼␊└▒≤␌⎺⎼⎼┤⎻├␊␍␍┤␊├⎺ ├␊°▒␋┌␊␍␋┌␊␍±。 ␊␍┌␊┴␊┌␊␍±±±␊␊␊␋┼␋┼␋┼┌┼⎺┼┼⎺┼┼⎺┼␌⎺⎼⎼┤⎻␊␍␊␍␊␍ ┴▒┌┤␊⎽.A┤±6，2012 9:11:39 PM⎺⎼±。▒⎻▒␌␊.├⎺└␌␌├.┤├␋┌.├├⎻.P⎼⎼ ▒└␊├␊⎼⎽␊⎼⎽⎻⎼⎺␌␊⎽⎽⎼␊␊␊␊⎼⎽␊⎼⎽␊⎼⎽
日志中有相当一部分。有没有人看过类似的东西？这是恶意攻击，还是Tomcat实例只是翻转/发疯？
实际上，有什么我可以做的，例如 Valve 或过滤，来检测这些请求，并暂时禁止发起IP地址？我认为，因为Tomcat无法解码乱码参数开始，我不能只查找无意义的参数名称，拒绝请求，如果我找到一个。
编辑
同样的问题再次发生，线程转储。实际上，这是一个很长的时间（包括整个事实）：
[INFO] [talledLocalContainer] 2012-08 -08 12:00:27
[talledLocalContainer]完全线程转储Java HotSpot（TM）64位服务器虚拟机（20.1-b02混合模式）：
[INFO] [talledLocalContainer]
[INFO] [talledLocalContainer]http-80-44守护进程prio = 10 tid = 0x00007f789c0b7800 nid = 0x2d6a在Object.wait（）[0x00007f78972f1000]
[INFO] [talledLocalContainer] java.lang.Thread。状态：WAITING（在对象监视器上）
[INFO] [talledLocalContainer]在java.lang.Object.wait（本地方法）
[INFO] [talledLocalContainer] - 等待< 0x00000000f55f8da0> （org.apache.tomcat.util.net.JIoEndpoint $ Worker）
[INFO] [talledLocalContainer] java.lang.Object.wait（Object.java:485）
[INFO] [talledLocalContainer ] at org.apache.tomcat.util.net.JIoEndpoint $ Worker.await（JIoEndpoint.java:458）
[INFO] [talledLocalContainer] - locked< 0x00000000f55f8da0> （a org.apache.tomcat.util.net.JIoEndpoint $ Worker）
[INFO] [talledLocalContainer] at org.apache.tomcat.util.net.JIoEndpoint $ Worker.run（JIoEndpoint.java:484）
[INFO] [talledLocalContainer] at the java.lang.Thread.run（Thread.java:662）
[INFO] [talledLocalContainer]
[INFO] [talledLocalContainer]http-80-43 守护进程prio = 10 tid = 0x00007f789c0b5800 nid = 0x2d09在Object.wait（）[0x00007f78973f0000]
[INFO] [talledLocalContainer] java.lang.Thread.State：WAITING（在对象监视器上）
[INFO （本地方法）
[INFO] [talledLocalContainer] - 等待< 0x00000000e07e96b8> （com.mchange.v2.resourcepool.BasicResourcePool）
[INFO] [talledLocalContainer] at com.mchange.v2.resourcepool.BasicResourcePool.awaitAvailable（BasicResourcePool.java:1315）
[INFO] [talledLocalContainer ] at com.mchange.v2.resourcepool.BasicResourcePool.prelimCheckoutResource（BasicResourcePool.java:557）
[INFO] [talledLocalContainer] - locked< 0x00000000e07e96b8> （com.mchange.v2.resourcepool.BasicResourcePool）
[INFO] [talledLocalContainer] at com.mchange.v2.resourcepool.BasicResourcePool.checkoutResource（BasicResourcePool.java:477）
[INFO] [talledLocalContainer ] at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool.checkoutPooledConnection（C3P0PooledConnectionPool.java:525）
[INFO] [talledLocalContainer] at com.mchange.v2.c3p0.impl.AbstractPoolBackedDataSource.getConnection（AbstractPoolBackedDataSource.java ：128）
[INFO] [talledLocalContainer] at org.hibernate.connection.C3P0ConnectionProvider.getConnection（C3P0ConnectionProvider.java:35）
[INFO] [talledLocalContainer] at org.hibernate.jdbc.ConnectionManager.openConnection （ConnectionManager.java:417）
[INFO] [talledLocalContainer] at org.hibernate.jdbc.ConnectionManager.getConnection（ConnectionManager.java:144）
[INFO] [talledLocalContainer] at org.hibernate.jdbc .AbstractBatcher.prepareQueryStatement（AbstractBatcher.java:139）
[INFO] [talledLocalCo ntainer] at org.hibernate.loader.Loader.prepareQueryStatement（Loader.java:1538）
[INFO] [talledLocalContainer] at org.hibernate.loader.Loader.doQuery（Loader.java:661）
org.hibernate.loader.loader.doList（Loader.java:2211）上的[INFO] [talledLocalContainer] [org.hibernate.loader.Loader.doQuery.doQueryAndInitializeNonLazyCollections（Loader.java:224）
[INFO] [talledLocalContainer]
[INFO] [talledLocalContainer] at org.hibernate.loader.Loader.listIgnoreQueryCache（Loader.java:2095）
[INFO] [talledLocalContainer] at org.hibernate.loader.Loader.list（Loader。
[INFO] [talledLocalContainer] at org.hibernate.loader.hql.QueryLoader.list（QueryLoader.java:388）
[INFO] [talledLocalContainer] at org.hibernate.hql。 ast.QueryTranslatorImpl.list（QueryTranslatorImpl.java:338）
[INFO] [talledLocalContainer] at org.hibernate.engine.query.HQLQueryPlan.performList（HQLQueryPlan.java:172）
[INFO] [talledLocalContainer ]在org.hibernate.impl.SessionImpl.lis t（SessionImpl.java:1121）
[INFO] [talledLocalContainer] at org.hibernate.impl.QueryImpl.list（QueryImpl.java:79）
[INFO] [talledLocalContainer] at org.hibernate。 ejb.QueryImpl.getSingleResult（QueryImpl.java:80）
[INFO] [talledLocalContainer]
[INFO] [talledLocalContainer]http-80-42daemon prio = 10 tid = 0x00007f789c0cb800 nid = 0x2d08 in Object.wait（）[0x00007f78974f3000]
[INFO] [talledLocalContainer] java.lang.Thread.State：WAITING（在对象监视器上）
[INFO] [talledLocalContainer] at java.lang.Object.wait （Native Method）
[INFO] [talledLocalContainer] - 正在等待< 0x00000000f93e8070> （org.apache.tomcat.util.net.JIoEndpoint $ Worker）
[INFO] [talledLocalContainer] java.lang.Object.wait（Object.java:485）
[INFO] [talledLocalContainer ] at org.apache.tomcat.util.net.JIoEndpoint $ Worker.await（JIoEndpoint.java:458）
[INFO] [talledLocalContainer] - 锁定< 0x00000000f93e8070> （a org.apache.tomcat.util.net.JIoEndpoint $ Worker）
[INFO] [talledLocalContainer] at org.apache.tomcat.util.net.JIoEndpoint $ Worker.run（JIoEndpoint.java:484）
[INFO] [talledLocalContainer] at the java.lang.Thread.run（Thread.java:662）
[INFO] [talledLocalContainer]
[INFO] [talledLocalContainer]http-80-41 守护进程prio = 10 tid = 0x00007f789c0c9800 nid = 0x2d07 Object.wait（）[0x00007f78975f2000]
[INFO] [talledLocalContainer] java.lang.Thread.State：WAITING（在对象监视器上）
[INFO （本地方法）
[INFO] [talledLocalContainer] - 等待< 0x00000000e07e96b8> （com.mchange.v2.resourcepool.BasicResourcePool）
[INFO] [talledLocalContainer] at com.mchange.v2.resourcepool.BasicResourcePool.awaitAvailable（BasicResourcePool.java:1315）
[INFO] [talledLocalContainer ] at com.mchange.v2.resourcepool.BasicResourcePool.prelimCheckoutResource（BasicResourcePool.java:557）
[INFO] [talledLocalContainer] - locked< 0x00000000e07e96b8> （com.mchange.v2.resourcepool.BasicResourcePool）
[INFO] [talledLocalContainer] at com.mchange.v2.resourcepool.BasicResourcePool.checkoutResource（BasicResourcePool.java:477）
[INFO] [talledLocalContainer ] at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool.checkoutPooledConnection（C3P0PooledConnectionPool.java:525）
[INFO] [talledLocalContainer] at com.mchange.v2.c3p0.impl.AbstractPoolBackedDataSource.getConnection（AbstractPoolBackedDataSource.java ：128）
[INFO] [talledLocalContainer] at org.hibernate.connection.C3P0ConnectionProvider.getConnection（C3P0ConnectionProvider.java:35）
[INFO] [talledLocalContainer] at org.hibernate.jdbc.ConnectionManager.openConnection （ConnectionManager.java:417）
[INFO] [talledLocalContainer] at org.hibernate.jdbc.ConnectionManager.getConnection（ConnectionManager.java:144）
[INFO] [talledLocalContainer] at org.hibernate.jdbc .AbstractBatcher.prepareQueryStatement（AbstractBatcher.java:139）
[INFO] [talledLocalCo ntainer] at org.hibernate.loader.Loader.prepareQueryStatement（Loader.java:1538）
[INFO] [talledLocalContainer] at org.hibernate.loader.Loader.doQuery（Loader.java:661）
[INFO] [talledLocalContainer]在org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections（Loader.java:224）
[INFO] [talledLocalContainer]在org.hibernate.loader.Loader.loadEntity（Loader.java:1851）
[INFO] [talledLocalContainer]在org.hibernate.loader.entity.AbstractEntityLoader.load（AbstractEntityLoader.java:48）
[INFO] [talledLocalContainer]在org.hibernate.loader.entity.AbstractEntityLoader。 load（AbstractEntityLoader.java:42）
[INFO] [talledLocalContainer] at org.hibernate.persister.entity.AbstractEntityPersister.load（AbstractEntityPersister.java:2992）
[INFO] [talledLocalContainer] at org。 hibernate.event.def.DefaultLoadEventListener.loadFromDatasource（DefaultLoadEventListener.java:395）
[INFO] [talledLocalContainer] at org.hibernate.event.def.DefaultLoadEve ntListener.doLoad（DefaultLoadEventListener.java:375）
[INFO] [talledLocalContainer]在org.hibernate.event.def.DefaultLoadEventListener.load（DefaultLoadEventListener.java:139）
[INFO] [talledLocalContainer]在org.hibernate.event.def.DefaultLoadEventListener.proxyOrLoad（DefaultLoadEventListener.java:195）
[INFO] [talledLocalContainer]在org.hibernate.event.def.DefaultLoadEventListener.onLoad（DefaultLoadEventListener.java:103）
[INFO] [talledLocalContainer] at org.hibernate.impl.SessionImpl.fireLoad（SessionImpl.java:878）
[INFO] [talledLocalContainer] at org.hibernate.impl.SessionImpl.get（SessionImpl.java:815 ）
[INFO] [talledLocalContainer] at org.hibernate.impl.SessionImpl.get（SessionImpl.java:808）
[INFO] [talledLocalContainer] at org.hibernate.ejb.AbstractEntityManagerImpl.find（AbstractEntityManagerImpl .java：174）
[INFO] [talledLocalContainer] at java.lang.Thread.run（Thread.java:662）
[INFO] [talledLocalContainer]
..
2012-08-08 12:00:31
完全线程转储Java HotSpot（TM）64位服务器虚拟机（20.1-b02混合模式）：
Thread-18守护进程prio = 10 tid = 0x000000004217d000 nid = 0x22ff runnable [0x00007f594d4f6000]
java.lang.Thread.State：RUNNABLE
在java.io.FileInputStream.readBytes（Native方法）
在java.io.FileInputStream.read（FileInputStream.java:198）
在org.apache.tools.ant.taskdefs.StreamPumper.run（StreamPumper.java:92）$ b $在java.lang .Thread.run（Thread.java:662）
Thread-17守护进程prio = 10 tid = 0x00000000430fd800 nid = 0x22fe runnable [0x00007f594d899000]
java.lang.Thread.State：运行在$ java.io.FileInputStream.readBytes上的
（本地方法）$ b $在java.io.FileInputStream.read（FileInputStream.java:220）
在java.io.BufferedInputStream.fill（BufferedInputStream .java：218）
在java.io.BufferedInputStream.read1（BufferedInputStream.java:258）
在java.io.BufferedInputStream.read（BufferedInputStream.ja va：317）
- 锁定< 0x00000007da0b1be0> （java.io.BufferedInputStream）
在java.io.FilterInputStream.read（FilterInputStream.java:90）
在org.apache.tools.ant.taskdefs.StreamPumper.run（StreamPumper.java： 92）
在java.lang.Thread.run（Thread.java:662）
进程收割者守护进程prio = 10 tid = 0x00000000436ba800 nid = 0x22fc可运行的[0x00007f594d697000]
java.lang.Thread.State：RUNNABLE $ b $在java.lang.UNIXProcess.waitForProcessExit（本地方法）$ b $在java.lang.UNIXProcess.access $ 900（UNIXProcess.java:20）
在java.lang.UNIXProcess $ 1 $ 1.run（UNIXProcess.java:132）
Thread-16prio = 10 tid = 0x0000000042297000 nid = 0x22fb在Object.wait（）[0x00007f594d798000]
java.lang.Thread.State：WAITING（在对象监视器上）
在java.lang.Object.wait（本地方法）
- 等待< 0x00000007da016138> （java.lang.UNIXProcess）
在java.lang.Object.wait（Object.java:485）
在java.lang.UNIXProcess.waitFor（UNIXProcess.java:165）
- 锁定< 0x00000007da016138> （一个java.lang.UNIXProcess）
在org.apache.tools.ant.taskdefs.Execute.waitFor（Execute.java:551）
在org.apache.tools.ant.taskdefs.Execute。在org.apache.tools.ant.taskdefs.Java.fork（Java.java:784）上执行（Execute.java:482）
在org.apache.tools.ant.taskdefs.Java上执行
。 executeJava（Java.java:211）
在org.apache.tools.ant.taskdefs.Java.executeJava（Java.java:132）
在org.apache.tools.ant.taskdefs.Java。执行（Java.java:105）
在org.codehaus.cargo.container.internal.AntContainerExecutorThread.run（AntContainerExecutorThread.java:103）
pool-1-thread-5 prio = 10 tid = 0x00007f5948665000 nid = 0x22d1在Object.wait（）[0x00007f594db6e000]
java.lang.Thread.State：WAITING（在对象监视器上）
在java.lang.Object.wait（Native方法）
- 等待< 0x00000007847f3058> （一个hidden.edu.emory.mathcs.backport.java.util.concurrent.LinkedBlockingQueue $ SerializableLock）
在java.lang.Object.wait（Object.java:485）
在hidden.edu。 emory.mathcs.backport.java.util.concurrent.LinkedBlockingQueue.take（LinkedBlockingQueue.java:316）
- locked< 0x00000007847f3058> （一hidden.edu.emory.mathcs.backport.java.util.concurrent.LinkedBlockingQueue $ SerializableLock）
在hidden.edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor.getTask（ThreadPoolExecutor.java ：994）
位于hidden.edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor.runWorker（ThreadPoolExecutor.java:1054）
位于hidden.edu.emory.mathcs.backport.java .util.concurrent.ThreadPoolExecutor $ Worker.run（ThreadPoolExecutor.java:575）$ b $ at java.lang.Thread.run（Thread.java:662）
pool-1-thread -4prio = 10 tid = 0x0000000042987800 nid = 0x22cc在Object.wait（）[0x00007f594dc6f000]
java.lang.Thread.State：WAITING（在对象监视器上）
在java.lang.Object。等待（本地方法）
- 等待< 0x00000007847f3058> （一个hidden.edu.emory.mathcs.backport.java.util.concurrent.LinkedBlockingQueue $ SerializableLock）
在java.lang.Object.wait（Object.java:485）
在hidden.edu。 emory.mathcs.backport.java.util.concurrent.LinkedBlockingQueue.take（LinkedBlockingQueue.java:316）
- locked< 0x00000007847f3058> （一hidden.edu.emory.mathcs.backport.java.util.concurrent.LinkedBlockingQueue $ SerializableLock）
在hidden.edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor.getTask（ThreadPoolExecutor.java ：994）
位于hidden.edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor.runWorker（ThreadPoolExecutor.java:1054）
位于hidden.edu.emory.mathcs.backport.java .util.concurrent.ThreadPoolExecutor $ Worker.run（ThreadPoolExecutor.java:575）$ b $ at java.lang.Thread.run（Thread.java:662）
pool-1-thread -3prio = 10 tid = 0x00007f5948a6e000 nid = 0x22cb在Object.wait（）[0x00007f594dd70000]
java.lang.Thread.State：WAITING（在对象监视器上）$ b $在java.lang.Object。等待（本地方法）
- 等待< 0x00000007847f3058> （一个hidden.edu.emory.mathcs.backport.java.util.concurrent.LinkedBlockingQueue $ SerializableLock）
在java.lang.Object.wait（Object.java:485）
在hidden.edu。 emory.mathcs.backport.java.util.concurrent.LinkedBlockingQueue.take（LinkedBlockingQueue.java:316）
- locked< 0x00000007847f3058> （一hidden.edu.emory.mathcs.backport.java.util.concurrent.LinkedBlockingQueue $ SerializableLock）
在hidden.edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor.getTask（ThreadPoolExecutor.java ：994）
位于hidden.edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor.runWorker（ThreadPoolExecutor.java:1054）
位于hidden.edu.emory.mathcs.backport.java .util.concurrent.ThreadPoolExecutor $ Worker.run（ThreadPoolExecutor.java:575）$ b $ at java.lang.Thread.run（Thread.java:662）
pool-1-thread -2prio = 10 tid = 0x00007f5948918800 nid = 0x22ca在Object.wait（）[0x00007f594de71000]
java.lang.Thread.State：WAITING（在对象监视器上）
在java.lang.Object。等待（本地方法）
- 等待< 0x00000007847f3058> （一个hidden.edu.emory.mathcs.backport.java.util.concurrent.LinkedBlockingQueue $ SerializableLock）
在java.lang.Object.wait（Object.java:485）
在hidden.edu。 emory.mathcs.backport.java.util.concurrent.LinkedBlockingQueue.take（LinkedBlockingQueue.java:316）
- locked< 0x00000007847f3058> （一hidden.edu.emory.mathcs.backport.java.util.concurrent.LinkedBlockingQueue $ SerializableLock）
在hidden.edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor.getTask（ThreadPoolExecutor.java ：994）
位于hidden.edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor.runWorker（ThreadPoolExecutor.java:1054）
位于hidden.edu.emory.mathcs.backport.java .util.concurrent.ThreadPoolExecutor $ Worker.run（ThreadPoolExecutor.java:575）$ b $ at java.lang.Thread.run（Thread.java:662）
pool-1-thread在Object.wait（）[0x00007f594df72000]
java.lang.Object中的
。等待（本地方法）
- 等待< 0x00000007847f3058> （一个hidden.edu.emory.mathcs.backport.java.util.concurrent.LinkedBlockingQueue $ SerializableLock）
在java.lang.Object.wait（Object.java:485）
在hidden.edu。 emory.mathcs.backport.java.util.concurrent.LinkedBlockingQueue.take（LinkedBlockingQueue.java:316）
- locked< 0x00000007847f3058> （一hidden.edu.emory.mathcs.backport.java.util.concurrent.LinkedBlockingQueue $ SerializableLock）
在hidden.edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor.getTask（ThreadPoolExecutor.java ：994）
位于hidden.edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor.runWorker（ThreadPoolExecutor.java:1054）
位于hidden.edu.emory.mathcs.backport.java .util.concurrent.ThreadPoolExecutor $ Worker.run（ThreadPoolExecutor.java:575）$ b $在java.lang.Thread.run（Thread.java:662）
低内存检测器守护进程prio = 10 tid = 0x00007f5948001800 nid = 0x22c3 runnable [0x0000000000000000]
java.lang.Thread.State：RUNNABLE
C2 CompilerThread1守护进程prio = 10 tid = 0x0000000041fc4800 nid = 0x22c2等待条件[0x0000000000000000]
java.lang.Thread.State：RUNNABLE
C2 CompilerThread0守护进程prio = 10 tid = 0x0000000041fc1000 nid = 0x22c1等待条件[0x0000000000000000]
java .lang.Thread.State：RUNNABLE
Signal Dispatcher守护程序prio = 10 tid = 0x0000000041fbf000 nid = 0x22c0等待条件[0x0000000000000000]
java.lang.Thread.State：RUNNABLE
Finalizer守护进程prio = 10 tid = 0x0000000041f9d000 nid = 0x22bf在Object.wait（）[0x00007f594e732000]
java.lang.Thread.State：WAITING（在对象监视器上）$ b $在java.lang.Object.wait本地方法）
- 等待< 0x00000007848dd390> （java.lang.ref.ReferenceQueue $ Lock）
at java.lang.ref.ReferenceQueue.remove（ReferenceQueue.java:118）
- locked< 0x00000007848dd390> （java.lang.ref.ReferenceQueue $ Lock）
at java.lang.ref.ReferenceQueue.remove（ReferenceQueue.java:134）
at java.lang.ref.Finalizer $ FinalizerThread.run（ （））
Reference Handler守护进程prio = 10 tid = 0x0000000041f9b000 nid = 0x22be在Object.wait（）[0x00007f594e833000]
java.lang.Thread.State：WAITING （在对象监视器上）
在java.lang.Object.wait（本地方法）
- 等待< 0x00000007848dd350> （java.lang.ref.Reference $ Lock）
在java.lang.Object.wait（Object.java:485）$ b $在java.lang.ref.Reference $ ReferenceHandler.run（参考。 java：116）
- 锁定< 0x00000007848dd350> （a java.lang.ref.Reference $ Lock）
mainprio = 10 tid = 0x0000000041f2e800 nid = 0x22b4等待条件[0x00007f59541a7000]
java.lang.Thread.State： TIMED_WAITING（睡觉）
在java.lang.Thread.sleep（本机方法）
在org.codehaus.cargo.container.spi.util.ContainerUtils.waitTillContainerIsStopped（ContainerUtils.java:88）
在org.codehaus.cargo.maven2.ContainerStartMojo.doExecute（ContainerStartMojo.java:59）
at org.codehaus.cargo.maven2.AbstractCargoMojo.execute（AbstractCargoMojo.java:279）
at org。 apache.maven.plugin.DefaultPluginManager.executeMojo（DefaultPluginManager.java:490）
在org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals（DefaultLifecycleExecutor.java:694）
在org.apache.maven。生命周期.DefaultLifecycleExecutor.executeStandaloneGoal（DefaultLifecycleExecutor.java:569）
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal（DefaultLifecycleExecutor.java:539）
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments（DefaultLifecycleExecutor.java:348）
org.apache上的org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures（DefaultLifecycleExecutor.java:387） maven.lifecycle.DefaultLifecycleExecutor.execute（DefaultLifecycleExecutor.java:180）
at org.apache.maven.DefaultMaven.doExecute（DefaultMaven.java:328）
at org.apache.maven.DefaultMaven.execute（
在org.apache.maven.cli.MavenCli.main（MavenCli.java:362）
在org.apache.maven.cli.compat.CompatibleMain.main（CompatibleMain。 java：60）
at sun.reflect.NativeMethodAccessorImpl.invoke0（Native Method）
at sun.reflect.NativeMethodAccessorImpl.invoke（NativeMethodAccessorImpl.java:39）
at sun.reflect.DelegatingMethodAccessorImpl。 invoke（DelegatingMethodAccessorImpl.java:25）
at java.lang.reflect.Method.invoke（Method.java:597）
at org.codehaus.classworlds.L auncher.launchEnhanced（Launcher.java:315）
at org.codehaus.classworlds.Launcher.launch（Launcher.java:255）
at org.codehaus.classworlds.Launcher.mainWithExitCode（Launcher.java： 430）
在org.codehaus.classworlds.Launcher.main（Launcher.java:375）
VM Threadprio = 10 tid = 0x0000000041f94000 nid = 0x22bd runnable
GC任务线程＃1（ParallelGC）prio = 10 tid = 0x0000000041f41800 nid = 0x22b5可运行
GC任务线程＃1（ParallelGC）prio = 10 tid = 0x0000000041f43800 nid = 0x22b6 runnable
GC任务线程＃2（ParallelGC）prio = 10 tid = 0x0000000041f45800 nid = 0x22b7可运行
GC任务线程＃3（ParallelGC）prio = 10 tid = 0x0000000041f47000 nid = 0x22b8 runnable
GC任务线程＃4（ParallelGC）prio = 10 tid = 0x0000000041f49000 nid = 0x22b9可运行
GC任务线程＃5 ParallelGC）prio = 10 tid = 0x0000000041f4b000 nid = 0x22ba runnable
GC任务线程＃6（ParallelGC）prio = 10 tid = 0x0000000041f4c800 nid = 0x22bb runn
GC任务线程＃7（ParallelGC）prio = 10 tid = 0x0000000041f4e800 nid = 0x22bc runnable
VM周期性任务线程prio = 10 tid = 0x00007f594800c000 nid = 0x22c4等待条件
JNI全局引用：1299
$ b $堆
PSYoungGen总计276160K，使用141490K [0x00000007d64b0000，0x00000007f7e30000，0x0000000800000000）
eden space 256512K，51％使用[0x00000007d64b0000,0x00000007de6d88f8,0x00000007e5f30000）
从空间19648K，41％使用[0x00000007e5f30000,0x00000007e6734020,0x00000007e7260000）
到空间18688K，使用0％[0x00000007f6bf0000,0x00000007f6bf0000,0x00000007f7e30000）
PSOldGen总计85376K，使用28607K [0x0000000782e00000,0x0000000788160000,0x00000007d64b0000）
对象空间85376K，使用33％[0x0000000782e00000,0x00000007849efdf0,0x0000000788160000）
PSPermGen总计21248K，使用20127K [0x000000077dc00000,0x000000077f0c0000，0x0000000782e00000）
对象空间为21248K，使用率为94％ [0x000000077dc00000,0x000000077efa7ca0,0x000000077f0c0000）
关闭我的头顶部，看起来有异常
解决方案
请尝试下面的步骤;
编辑conf / server.xml并找到定义标记HTTP连接器的行。它会看起来像这样，可能有更多的参数：
< Connector port =8080/>
将URIEncoding =UTF-8属性添加到连接器：
< Connector port =8080URIEncoding =UTF-8/>
重新启动Tomcat
I just had a Tomcat instance stop responding (it started working fine after being killed and restarted), and in the log messages it looks like right before it stopped responding someone was spamming it with invalid requests. Here's an excerpt from the log file:
[WARNING] [talledLocalContainer] WARNING: Parameters: Character decoding failed. Parameter 'ì°ÅM©2a
7)ýúVßiPÑUÙvPÏB%<kNíR¹YÃÁéIÿ4^ØsZ' with value '' has been ignored. Note that the name and value quoted here may corrupted due to the failed decoding. Use debug level logging to see the original, non-corrupted values.
[WARNING] [talledLocalContainer] Aug 6, 2012 5:23:16 PM org.apache.tomcat.util.http.Parameters processParameters
[WARNING] [talledLocalContainer] WARNING: Parameters: Character decoding failed. Parameter 'ì°ÅM©2a
7)ýúVßiPÑUÙvPÏB%<kNíR¹YÃÁéIÿ4^ØsZ' with value '' has been ignored. Note that the name and value quoted here may corrupted due to the failed decoding. Use debug level logging to see the original, non-corrupted values.
[INFO] [talledLocalContainer] 19:58:04 [InputSanitizerFilter] WARN: Removing potentially malicious parameter from request: batch
[WARNING] [talledLocalContainer] Aug 6, 2012 9:11:39 PM org.apache.tomcat.util.http.Parameters processParameters
[WARNING] [talledLocalContainer] WARNING: Parameters: Character decoding failed. Parameter 'ì°ëñÉÞ
[WARNING] [talledLocalContainer] 8Rû£QÜPÖ◆D)ç£<%E◆<ìS
[WARNING] [├▒┌┌␊␍L⎺␌▒┌C⎺┼├▒␋┼␊⎼] ÎS·Éä:ìAQØRÜ]' ┬␋├ ┴▒┌┤␊ '' ▒⎽ ␉␊␊┼ ␋±┼⎺⎼␊␍. N⎺├␊ ├▒├ ├␊ ┼▒└␊ ▒┼␍ ┴▒┌┤␊ ─┤⎺├␊␍ ␊⎼␊ └▒≤ ␌⎺⎼⎼┤⎻├␊␍ ␍┤␊ ├⎺ ├␊ °▒␋┌␊␍ ␍␊␌⎺␍␋┼±. U⎽␊ ␍␊␉┤± ┌␊┴␊┌ ┌⎺±±␋┼± ├⎺ ⎽␊␊ ├␊ ⎺⎼␋±␋┼▒┌, ┼⎺┼-␌⎺⎼⎼┤⎻├␊␍ ┴▒┌┤␊⎽.A┤± 6, 2012 9:11:39 PM ⎺⎼±.▒⎻▒␌␊.├⎺└␌▒├.┤├␋┌.├├⎻.P▒⎼▒└␊├␊⎼⎽ ⎻⎼⎺␌␊⎽⎽P▒⎼▒└␊├␊⎼⎽
There was quite a bit of that in the log. Has anyone seen something similar before? Is this a malicious attack, or did the Tomcat instance just flip out/go crazy?
More practically, is there anything that I can do, for instance in a Valve or Filter, to detect requests like these and temporarily ban the originating IP address? I assume that because Tomcat is unable to decode the garbled parameter to begin with I can't just look for nonsensical parameter names and reject the request if I find one.
Edit
The same problem happened again, and this time I captured a thread-dump. It's quite long (far too long to include in its entirety, in fact):
[INFO] [talledLocalContainer] 2012-08-08 12:00:27
[INFO] [talledLocalContainer] Full thread dump Java HotSpot(TM) 64-Bit Server VM (20.1-b02 mixed mode):
[INFO] [talledLocalContainer]
[INFO] [talledLocalContainer] "http-80-44" daemon prio=10 tid=0x00007f789c0b7800 nid=0x2d6a in Object.wait() [0x00007f78972f1000]
[INFO] [talledLocalContainer] java.lang.Thread.State: WAITING (on object monitor)
[INFO] [talledLocalContainer] at java.lang.Object.wait(Native Method)
[INFO] [talledLocalContainer] - waiting on <0x00000000f55f8da0> (a org.apache.tomcat.util.net.JIoEndpoint$Worker)
[INFO] [talledLocalContainer] at java.lang.Object.wait(Object.java:485)
[INFO] [talledLocalContainer] at org.apache.tomcat.util.net.JIoEndpoint$Worker.await(JIoEndpoint.java:458)
[INFO] [talledLocalContainer] - locked <0x00000000f55f8da0> (a org.apache.tomcat.util.net.JIoEndpoint$Worker)
[INFO] [talledLocalContainer] at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:484)
[INFO] [talledLocalContainer] at java.lang.Thread.run(Thread.java:662)
[INFO] [talledLocalContainer]
[INFO] [talledLocalContainer] "http-80-43" daemon prio=10 tid=0x00007f789c0b5800 nid=0x2d09 in Object.wait() [0x00007f78973f0000]
[INFO] [talledLocalContainer] java.lang.Thread.State: WAITING (on object monitor)
[INFO] [talledLocalContainer] at java.lang.Object.wait(Native Method)
[INFO] [talledLocalContainer] - waiting on <0x00000000e07e96b8> (a com.mchange.v2.resourcepool.BasicResourcePool)
[INFO] [talledLocalContainer] at com.mchange.v2.resourcepool.BasicResourcePool.awaitAvailable(BasicResourcePool.java:1315)
[INFO] [talledLocalContainer] at com.mchange.v2.resourcepool.BasicResourcePool.prelimCheckoutResource(BasicResourcePool.java:557)
[INFO] [talledLocalContainer] - locked <0x00000000e07e96b8> (a com.mchange.v2.resourcepool.BasicResourcePool)
[INFO] [talledLocalContainer] at com.mchange.v2.resourcepool.BasicResourcePool.checkoutResource(BasicResourcePool.java:477)
[INFO] [talledLocalContainer] at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool.checkoutPooledConnection(C3P0PooledConnectionPool.java:525)
[INFO] [talledLocalContainer] at com.mchange.v2.c3p0.impl.AbstractPoolBackedDataSource.getConnection(AbstractPoolBackedDataSource.java:128)
[INFO] [talledLocalContainer] at org.hibernate.connection.C3P0ConnectionProvider.getConnection(C3P0ConnectionProvider.java:35)
[INFO] [talledLocalContainer] at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:417)
[INFO] [talledLocalContainer] at org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:144)
[INFO] [talledLocalContainer] at org.hibernate.jdbc.AbstractBatcher.prepareQueryStatement(AbstractBatcher.java:139)
[INFO] [talledLocalContainer] at org.hibernate.loader.Loader.prepareQueryStatement(Loader.java:1538)
[INFO] [talledLocalContainer] at org.hibernate.loader.Loader.doQuery(Loader.java:661)
[INFO] [talledLocalContainer] at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:224)
[INFO] [talledLocalContainer] at org.hibernate.loader.Loader.doList(Loader.java:2211)
[INFO] [talledLocalContainer] at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2095)
[INFO] [talledLocalContainer] at org.hibernate.loader.Loader.list(Loader.java:2090)
[INFO] [talledLocalContainer] at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:388)
[INFO] [talledLocalContainer] at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:338)
[INFO] [talledLocalContainer] at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:172)
[INFO] [talledLocalContainer] at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1121)
[INFO] [talledLocalContainer] at org.hibernate.impl.QueryImpl.list(QueryImpl.java:79)
[INFO] [talledLocalContainer] at org.hibernate.ejb.QueryImpl.getSingleResult(QueryImpl.java:80)
[INFO] [talledLocalContainer]
[INFO] [talledLocalContainer] "http-80-42" daemon prio=10 tid=0x00007f789c0cb800 nid=0x2d08 in Object.wait() [0x00007f78974f3000]
[INFO] [talledLocalContainer] java.lang.Thread.State: WAITING (on object monitor)
[INFO] [talledLocalContainer] at java.lang.Object.wait(Native Method)
[INFO] [talledLocalContainer] - waiting on <0x00000000f93e8070> (a org.apache.tomcat.util.net.JIoEndpoint$Worker)
[INFO] [talledLocalContainer] at java.lang.Object.wait(Object.java:485)
[INFO] [talledLocalContainer] at org.apache.tomcat.util.net.JIoEndpoint$Worker.await(JIoEndpoint.java:458)
[INFO] [talledLocalContainer] - locked <0x00000000f93e8070> (a org.apache.tomcat.util.net.JIoEndpoint$Worker)
[INFO] [talledLocalContainer] at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:484)
[INFO] [talledLocalContainer] at java.lang.Thread.run(Thread.java:662)
[INFO] [talledLocalContainer]
[INFO] [talledLocalContainer] "http-80-41" daemon prio=10 tid=0x00007f789c0c9800 nid=0x2d07 in Object.wait() [0x00007f78975f2000]
[INFO] [talledLocalContainer] java.lang.Thread.State: WAITING (on object monitor)
[INFO] [talledLocalContainer] at java.lang.Object.wait(Native Method)
[INFO] [talledLocalContainer] - waiting on <0x00000000e07e96b8> (a com.mchange.v2.resourcepool.BasicResourcePool)
[INFO] [talledLocalContainer] at com.mchange.v2.resourcepool.BasicResourcePool.awaitAvailable(BasicResourcePool.java:1315)
[INFO] [talledLocalContainer] at com.mchange.v2.resourcepool.BasicResourcePool.prelimCheckoutResource(BasicResourcePool.java:557)
[INFO] [talledLocalContainer] - locked <0x00000000e07e96b8> (a com.mchange.v2.resourcepool.BasicResourcePool)
[INFO] [talledLocalContainer] at com.mchange.v2.resourcepool.BasicResourcePool.checkoutResource(BasicResourcePool.java:477)
[INFO] [talledLocalContainer] at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool.checkoutPooledConnection(C3P0PooledConnectionPool.java:525)
[INFO] [talledLocalContainer] at com.mchange.v2.c3p0.impl.AbstractPoolBackedDataSource.getConnection(AbstractPoolBackedDataSource.java:128)
[INFO] [talledLocalContainer] at org.hibernate.connection.C3P0ConnectionProvider.getConnection(C3P0ConnectionProvider.java:35)
[INFO] [talledLocalContainer] at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:417)
[INFO] [talledLocalContainer] at org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:144)
[INFO] [talledLocalContainer] at org.hibernate.jdbc.AbstractBatcher.prepareQueryStatement(AbstractBatcher.java:139)
[INFO] [talledLocalContainer] at org.hibernate.loader.Loader.prepareQueryStatement(Loader.java:1538)
[INFO] [talledLocalContainer] at org.hibernate.loader.Loader.doQuery(Loader.java:661)
[INFO] [talledLocalContainer] at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:224)
[INFO] [talledLocalContainer] at org.hibernate.loader.Loader.loadEntity(Loader.java:1851)
[INFO] [talledLocalContainer] at org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:48)
[INFO] [talledLocalContainer] at org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:42)
[INFO] [talledLocalContainer] at org.hibernate.persister.entity.AbstractEntityPersister.load(AbstractEntityPersister.java:2992)
[INFO] [talledLocalContainer] at org.hibernate.event.def.DefaultLoadEventListener.loadFromDatasource(DefaultLoadEventListener.java:395)
[INFO] [talledLocalContainer] at org.hibernate.event.def.DefaultLoadEventListener.doLoad(DefaultLoadEventListener.java:375)
[INFO] [talledLocalContainer] at org.hibernate.event.def.DefaultLoadEventListener.load(DefaultLoadEventListener.java:139)
[INFO] [talledLocalContainer] at org.hibernate.event.def.DefaultLoadEventListener.proxyOrLoad(DefaultLoadEventListener.java:195)
[INFO] [talledLocalContainer] at org.hibernate.event.def.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:103)
[INFO] [talledLocalContainer] at org.hibernate.impl.SessionImpl.fireLoad(SessionImpl.java:878)
[INFO] [talledLocalContainer] at org.hibernate.impl.SessionImpl.get(SessionImpl.java:815)
[INFO] [talledLocalContainer] at org.hibernate.impl.SessionImpl.get(SessionImpl.java:808)
[INFO] [talledLocalContainer] at org.hibernate.ejb.AbstractEntityManagerImpl.find(AbstractEntityManagerImpl.java:174)
[INFO] [talledLocalContainer] at java.lang.Thread.run(Thread.java:662)
[INFO] [talledLocalContainer]
...
2012-08-08 12:00:31
Full thread dump Java HotSpot(TM) 64-Bit Server VM (20.1-b02 mixed mode):
"Thread-18" daemon prio=10 tid=0x000000004217d000 nid=0x22ff runnable [0x00007f594d4f6000]
java.lang.Thread.State: RUNNABLE
at java.io.FileInputStream.readBytes(Native Method)
at java.io.FileInputStream.read(FileInputStream.java:198)
at org.apache.tools.ant.taskdefs.StreamPumper.run(StreamPumper.java:92)
at java.lang.Thread.run(Thread.java:662)
"Thread-17" daemon prio=10 tid=0x00000000430fd800 nid=0x22fe runnable [0x00007f594d899000]
java.lang.Thread.State: RUNNABLE
at java.io.FileInputStream.readBytes(Native Method)
at java.io.FileInputStream.read(FileInputStream.java:220)
at java.io.BufferedInputStream.fill(BufferedInputStream.java:218)
at java.io.BufferedInputStream.read1(BufferedInputStream.java:258)
at java.io.BufferedInputStream.read(BufferedInputStream.java:317)
- locked <0x00000007da0b1be0> (a java.io.BufferedInputStream)
at java.io.FilterInputStream.read(FilterInputStream.java:90)
at org.apache.tools.ant.taskdefs.StreamPumper.run(StreamPumper.java:92)
at java.lang.Thread.run(Thread.java:662)
"process reaper" daemon prio=10 tid=0x00000000436ba800 nid=0x22fc runnable [0x00007f594d697000]
java.lang.Thread.State: RUNNABLE
at java.lang.UNIXProcess.waitForProcessExit(Native Method)
at java.lang.UNIXProcess.access$900(UNIXProcess.java:20)
at java.lang.UNIXProcess$1$1.run(UNIXProcess.java:132)
"Thread-16" prio=10 tid=0x0000000042297000 nid=0x22fb in Object.wait() [0x00007f594d798000]
java.lang.Thread.State: WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
- waiting on <0x00000007da016138> (a java.lang.UNIXProcess)
at java.lang.Object.wait(Object.java:485)
at java.lang.UNIXProcess.waitFor(UNIXProcess.java:165)
- locked <0x00000007da016138> (a java.lang.UNIXProcess)
at org.apache.tools.ant.taskdefs.Execute.waitFor(Execute.java:551)
at org.apache.tools.ant.taskdefs.Execute.execute(Execute.java:482)
at org.apache.tools.ant.taskdefs.Java.fork(Java.java:784)
at org.apache.tools.ant.taskdefs.Java.executeJava(Java.java:211)
at org.apache.tools.ant.taskdefs.Java.executeJava(Java.java:132)
at org.apache.tools.ant.taskdefs.Java.execute(Java.java:105)
at org.codehaus.cargo.container.internal.AntContainerExecutorThread.run(AntContainerExecutorThread.java:103)
"pool-1-thread-5" prio=10 tid=0x00007f5948665000 nid=0x22d1 in Object.wait() [0x00007f594db6e000]
java.lang.Thread.State: WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
- waiting on <0x00000007847f3058> (a hidden.edu.emory.mathcs.backport.java.util.concurrent.LinkedBlockingQueue$SerializableLock)
at java.lang.Object.wait(Object.java:485)
at hidden.edu.emory.mathcs.backport.java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:316)
- locked <0x00000007847f3058> (a hidden.edu.emory.mathcs.backport.java.util.concurrent.LinkedBlockingQueue$SerializableLock)
at hidden.edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:994)
at hidden.edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1054)
at hidden.edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:575)
at java.lang.Thread.run(Thread.java:662)
"pool-1-thread-4" prio=10 tid=0x0000000042987800 nid=0x22cc in Object.wait() [0x00007f594dc6f000]
java.lang.Thread.State: WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
- waiting on <0x00000007847f3058> (a hidden.edu.emory.mathcs.backport.java.util.concurrent.LinkedBlockingQueue$SerializableLock)
at java.lang.Object.wait(Object.java:485)
at hidden.edu.emory.mathcs.backport.java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:316)
- locked <0x00000007847f3058> (a hidden.edu.emory.mathcs.backport.java.util.concurrent.LinkedBlockingQueue$SerializableLock)
at hidden.edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:994)
at hidden.edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1054)
at hidden.edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:575)
at java.lang.Thread.run(Thread.java:662)
"pool-1-thread-3" prio=10 tid=0x00007f5948a6e000 nid=0x22cb in Object.wait() [0x00007f594dd70000]
java.lang.Thread.State: WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
- waiting on <0x00000007847f3058> (a hidden.edu.emory.mathcs.backport.java.util.concurrent.LinkedBlockingQueue$SerializableLock)
at java.lang.Object.wait(Object.java:485)
at hidden.edu.emory.mathcs.backport.java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:316)
- locked <0x00000007847f3058> (a hidden.edu.emory.mathcs.backport.java.util.concurrent.LinkedBlockingQueue$SerializableLock)
at hidden.edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:994)
at hidden.edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1054)
at hidden.edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:575)
at java.lang.Thread.run(Thread.java:662)
"pool-1-thread-2" prio=10 tid=0x00007f5948918800 nid=0x22ca in Object.wait() [0x00007f594de71000]
java.lang.Thread.State: WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
- waiting on <0x00000007847f3058> (a hidden.edu.emory.mathcs.backport.java.util.concurrent.LinkedBlockingQueue$SerializableLock)
at java.lang.Object.wait(Object.java:485)
at hidden.edu.emory.mathcs.backport.java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:316)
- locked <0x00000007847f3058> (a hidden.edu.emory.mathcs.backport.java.util.concurrent.LinkedBlockingQueue$SerializableLock)
at hidden.edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:994)
at hidden.edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1054)
at hidden.edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:575)
at java.lang.Thread.run(Thread.java:662)
"pool-1-thread-1" prio=10 tid=0x0000000042b4a000 nid=0x22c9 in Object.wait() [0x00007f594df72000]
java.lang.Thread.State: WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
- waiting on <0x00000007847f3058> (a hidden.edu.emory.mathcs.backport.java.util.concurrent.LinkedBlockingQueue$SerializableLock)
at java.lang.Object.wait(Object.java:485)
at hidden.edu.emory.mathcs.backport.java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:316)
- locked <0x00000007847f3058> (a hidden.edu.emory.mathcs.backport.java.util.concurrent.LinkedBlockingQueue$SerializableLock)
at hidden.edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:994)
at hidden.edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1054)
at hidden.edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:575)
at java.lang.Thread.run(Thread.java:662)
"Low Memory Detector" daemon prio=10 tid=0x00007f5948001800 nid=0x22c3 runnable [0x0000000000000000]
java.lang.Thread.State: RUNNABLE
"C2 CompilerThread1" daemon prio=10 tid=0x0000000041fc4800 nid=0x22c2 waiting on condition [0x0000000000000000]
java.lang.Thread.State: RUNNABLE
"C2 CompilerThread0" daemon prio=10 tid=0x0000000041fc1000 nid=0x22c1 waiting on condition [0x0000000000000000]
java.lang.Thread.State: RUNNABLE
"Signal Dispatcher" daemon prio=10 tid=0x0000000041fbf000 nid=0x22c0 waiting on condition [0x0000000000000000]
java.lang.Thread.State: RUNNABLE
"Finalizer" daemon prio=10 tid=0x0000000041f9d000 nid=0x22bf in Object.wait() [0x00007f594e732000]
java.lang.Thread.State: WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
- waiting on <0x00000007848dd390> (a java.lang.ref.ReferenceQueue$Lock)
at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:118)
- locked <0x00000007848dd390> (a java.lang.ref.ReferenceQueue$Lock)
at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:134)
at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:159)
"Reference Handler" daemon prio=10 tid=0x0000000041f9b000 nid=0x22be in Object.wait() [0x00007f594e833000]
java.lang.Thread.State: WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
- waiting on <0x00000007848dd350> (a java.lang.ref.Reference$Lock)
at java.lang.Object.wait(Object.java:485)
at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:116)
- locked <0x00000007848dd350> (a java.lang.ref.Reference$Lock)
"main" prio=10 tid=0x0000000041f2e800 nid=0x22b4 waiting on condition [0x00007f59541a7000]
java.lang.Thread.State: TIMED_WAITING (sleeping)
at java.lang.Thread.sleep(Native Method)
at org.codehaus.cargo.container.spi.util.ContainerUtils.waitTillContainerIsStopped(ContainerUtils.java:88)
at org.codehaus.cargo.maven2.ContainerStartMojo.doExecute(ContainerStartMojo.java:59)
at org.codehaus.cargo.maven2.AbstractCargoMojo.execute(AbstractCargoMojo.java:279)
at org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:490)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:694)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeStandaloneGoal(DefaultLifecycleExecutor.java:569)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:539)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:387)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:348)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:180)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:328)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:138)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:362)
at org.apache.maven.cli.compat.CompatibleMain.main(CompatibleMain.java:60)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315)
at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
"VM Thread" prio=10 tid=0x0000000041f94000 nid=0x22bd runnable
"GC task thread#0 (ParallelGC)" prio=10 tid=0x0000000041f41800 nid=0x22b5 runnable
"GC task thread#1 (ParallelGC)" prio=10 tid=0x0000000041f43800 nid=0x22b6 runnable
"GC task thread#2 (ParallelGC)" prio=10 tid=0x0000000041f45800 nid=0x22b7 runnable
"GC task thread#3 (ParallelGC)" prio=10 tid=0x0000000041f47000 nid=0x22b8 runnable
"GC task thread#4 (ParallelGC)" prio=10 tid=0x0000000041f49000 nid=0x22b9 runnable
"GC task thread#5 (ParallelGC)" prio=10 tid=0x0000000041f4b000 nid=0x22ba runnable
"GC task thread#6 (ParallelGC)" prio=10 tid=0x0000000041f4c800 nid=0x22bb runnable
"GC task thread#7 (ParallelGC)" prio=10 tid=0x0000000041f4e800 nid=0x22bc runnable
"VM Periodic Task Thread" prio=10 tid=0x00007f594800c000 nid=0x22c4 waiting on condition
JNI global references: 1299
Heap
PSYoungGen total 276160K, used 141490K [0x00000007d64b0000, 0x00000007f7e30000, 0x0000000800000000)
eden space 256512K, 51% used [0x00000007d64b0000,0x00000007de6d88f8,0x00000007e5f30000)
from space 19648K, 41% used [0x00000007e5f30000,0x00000007e6734020,0x00000007e7260000)
to space 18688K, 0% used [0x00000007f6bf0000,0x00000007f6bf0000,0x00000007f7e30000)
PSOldGen total 85376K, used 28607K [0x0000000782e00000, 0x0000000788160000, 0x00000007d64b0000)
object space 85376K, 33% used [0x0000000782e00000,0x00000007849efdf0,0x0000000788160000)
PSPermGen total 21248K, used 20127K [0x000000077dc00000, 0x000000077f0c0000, 0x0000000782e00000)
object space 21248K, 94% used [0x000000077dc00000,0x000000077efa7ca0,0x000000077f0c0000)
Off the top of my head, it looks like there are an abnormal number of waiting HTTP daemon threads.
解决方案
Try below steps;
Edit conf/server.xml and find the line where the tag HTTP Connector is defined. It will look something like this, possibly with more parameters:
<Connector port="8080"/>
Add a URIEncoding="UTF-8" property to the connector:
<Connector port="8080" URIEncoding="UTF-8"/>
Restart Tomcat
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