通过围绕论坛的一些研究，我终于设法让jstack工作以获得利用高CPU的JAVA进程的线程转储。不仅如此，它已停止写入指定的日志文件，并且该过程是乱七八糟的。我已经检查过以下线程正在使用最高的CPU。有人可以帮我检查根本原因（因为日志没有显示任何内容）：
Thread 30141: (state = IN_NATIVE)
- java.net.SocketInputStream.socketRead0(java.io.FileDescriptor, byte[], int, int, int) @bci=0 (Compiled frame; information may be imprecise)
- java.net.SocketInputStream.read(byte[], int, int, int) @bci=79, line=150 (Compiled frame)
- java.net.SocketInputStream.read(byte[], int, int) @bci=11, line=121 (Compiled frame)
- oracle.net.ns.Packet.receive() @bci=180, line=300 (Compiled frame)
- oracle.net.ns.DataPacket.receive() @bci=1, line=106 (Compiled frame)
- oracle.net.ns.NetInputStream.getNextPacket() @bci=48, line=315 (Compiled frame)
- oracle.net.ns.NetInputStream.read(byte[], int, int) @bci=33, line=260 (Compiled frame)
- oracle.net.ns.NetInputStream.read(byte[]) @bci=5, line=185 (Compiled frame)
- oracle.net.ns.NetInputStream.read() @bci=70, line=102 (Compiled frame)
- oracle.jdbc.driver.T4CSocketInputStreamWrapper.readNextPacket() @bci=11, line=124 (Compiled frame)
- java.util.LinkedList.linkLast(java.lang.Object) @bci=5, line=140 (Compiled frame)
- java.util.LinkedList.add(java.lang.Object) @bci=2, line=336 (Compiled frame)
- oracle.jdbc.driver.T4CTTIfun.receive() @bci=27, line=291 (Compiled frame)
- oracle.jdbc.driver.T4CTTIfun.doRPC() @bci=56, line=192 (Compiled frame)
- oracle.jdbc.driver.T4C8Oall.doOALL(boolean, boolean, boolean, boolean, boolean, oracle.jdbc.internal.OracleStatement$SqlKind, int, byte[], int, oracle.jdbc.driver.Accessor[], int, oracle.jdbc.driver.Accessor[], int, byte[], char[], short[], int, oracle.jdbc.driver.DBConversion, byte[], java.io.InputStream[][], byte[][][], oracle.jdbc.oracore.OracleTypeADT[][], oracle.jdbc.driver.OracleStatement, byte[], char[], short[], oracle.jdbc.driver.T4CTTIoac[], int[], int[], int[], oracle.jdbc.driver.NTFDCNRegistration) @bci=769, line=531 (Compiled frame)
- oracle.jdbc.driver.T4CPreparedStatement.doOall8(boolean, boolean, boolean, boolean, boolean) @bci=749, line=207 (Compiled frame)
- oracle.jdbc.driver.T4CPreparedStatement.executeForRows(boolean) @bci=226, line=1044 (Compiled frame)
- oracle.jdbc.driver.OracleStatement.executeMaybeDescribe() @bci=179, line=1199 (Compiled frame)
- oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout() @bci=150, line=1289 (Compiled frame)
- oracle.jdbc.driver.OraclePreparedStatement.executeInternal() @bci=119, line=3584 (Compiled frame)
- oracle.jdbc.driver.OraclePreparedStatement.executeQuery() @bci=13, line=3628 (Compiled frame)
- oracle.jdbc.driver.OraclePreparedStatementWrapper.executeQuery() @bci=4, line=1493 (Compiled frame)
- org.apache.commons.dbcp.DelegatingPreparedStatement.executeQuery() @bci=12, line=96 (Compiled frame)
- org.apache.commons.dbcp.DelegatingPreparedStatement.executeQuery() @bci=12, line=96 (Compiled frame)
- org.apache.commons.dbcp.DelegatingPreparedStatement.executeQuery() @bci=12, line=96 (Compiled frame)
- org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.extract(java.sql.PreparedStatement) @bci=19, line=56 (Compiled frame)
- org.hibernate.loader.Loader.getResultSet(java.sql.PreparedStatement, org.hibernate.engine.spi.RowSelection, org.hibernate.dialect.pagination.LimitHandler, boolean, org.hibernate.engine.spi.SessionImplementor) @bci=18, line=2040 (Compiled frame)
- org.hibernate.loader.Loader.executeQueryStatement(java.lang.String, org.hibernate.engine.spi.QueryParameters, boolean, java.util.List, org.hibernate.engine.spi.SessionImplementor) @bci=85, line=1837 (Compiled frame)
- org.hibernate.loader.Loader.executeQueryStatement(org.hibernate.engine.spi.QueryParameters, boolean, java.util.List, org.hibernate.engine.spi.SessionImplementor) @bci=10, line=1816 (Compiled frame)
- org.hibernate.loader.Loader.doQuery(org.hibernate.engine.spi.SessionImplementor, org.hibernate.engine.spi.QueryParameters, boolean, org.hibernate.transform.ResultTransformer) @bci=44, line=900 (Compiled frame)
- org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(org.hibernate.engine.spi.SessionImplementor, org.hibernate.engine.spi.QueryParameters, boolean, org.hibernate.transform.ResultTransformer) @bci=62, line=342 (Compiled frame)
- org.hibernate.loader.Loader.doList(org.hibernate.engine.spi.SessionImplementor, org.hibernate.engine.spi.QueryParameters, org.hibernate.transform.ResultTransformer) @bci=34, line=2526 (Compiled frame)
- org.hibernate.loader.Loader.doList(org.hibernate.engine.spi.SessionImplementor, org.hibernate.engine.spi.QueryParameters) @bci=4, line=2512 (Compiled frame)
- org.hibernate.loader.Loader.listIgnoreQueryCache(org.hibernate.engine.spi.SessionImplementor, org.hibernate.engine.spi.QueryParameters) @bci=4, line=2342 (Compiled frame)
- org.hibernate.loader.Loader.list(org.hibernate.engine.spi.SessionImplementor, org.hibernate.engine.spi.QueryParameters, java.util.Set, org.hibernate.type.Type[]) @bci=47, line=2337 (Compiled frame)
- org.hibernate.loader.hql.QueryLoader.list(org.hibernate.engine.spi.SessionImplementor, org.hibernate.engine.spi.QueryParameters) @bci=19, line=495 (Compiled frame)
- org.hibernate.hql.internal.ast.QueryTranslatorImpl.list(org.hibernate.engine.spi.SessionImplementor, org.hibernate.engine.spi.QueryParameters) @bci=139, line=356 (Compiled frame)
- org.hibernate.engine.query.spi.HQLQueryPlan.performList(org.hibernate.engine.spi.QueryParameters, org.hibernate.engine.spi.SessionImplementor) @bci=192, line=195 (Compiled frame)
- org.hibernate.internal.SessionImpl.list(java.lang.String, org.hibernate.engine.spi.QueryParameters) @bci=49, line=1269 (Compiled frame)
- org.hibernate.internal.QueryImpl.list() @bci=27, line=101 (Compiled frame)
- org.hibernate.ejb.QueryImpl.getSingleResult() @bci=4, line=285 (Compiled frame)
- com.dhl.odd.persistence.impls.UrlTokenServiceImpl.isTokenExist(java.lang.String) @bci=23, line=177 (Compiled frame)
- com.dhl.odd.persistence.impls.UrlTokenServiceImpl.generateToken(java.lang.String) @bci=9, line=155 (Compiled frame)
- sun.reflect.NativeMethodAccessorImpl.invoke0(java.lang.reflect.Method, java.lang.Object, java.lang.Object[]) @bci=0 (Interpreted frame)
- sun.reflect.NativeMethodAccessorImpl.invoke(java.lang.Object, java.lang.Object[]) @bci=87, line=57 (Interpreted frame)
- sun.reflect.DelegatingMethodAccessorImpl.invoke(java.lang.Object, java.lang.Object[]) @bci=6, line=43 (Compiled frame)
- java.lang.reflect.Method.invoke(java.lang.Object, java.lang.Object[]) @bci=57, line=606 (Compiled frame)
- org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(java.lang.Object, java.lang.reflect.Method, java.lang.Object[]) @bci=7, line=317 (Interpreted frame)
- org.springframework.aop.framework.JdkDynamicAopProxy.invoke(java.lang.Object, java.lang.reflect.Method, java.lang.Object[]) @bci=293, line=201 (Interpreted frame)
- com.sun.proxy.$Proxy127.generateToken(java.lang.String) @bci=16 (Interpreted frame)
- com.dhl.odd.batch.tasklets.GenerateUrlTasklet.getOddUrl(com.dhl.odd.apis.dtos.NotificationDto) @bci=164, line=93 (Interpreted frame)
- com.dhl.odd.batch.tasklets.GenerateUrlTasklet.execute(org.springframework.batch.core.StepContribution, org.springframework.batch.core.scope.context.ChunkContext) @bci=107, line=57 (Interpreted frame)
- com.dhl.odd.batch.tasklets.NotificationProcessorTasklet.execute(org.springframework.batch.core.StepContribution, org.springframework.batch.core.scope.context.ChunkContext) @bci=37, line=40 (Interpreted frame)
- sun.reflect.NativeMethodAccessorImpl.invoke0(java.lang.reflect.Method, java.lang.Object, java.lang.Object[]) @bci=0 (Interpreted frame)
- sun.reflect.NativeMethodAccessorImpl.invoke(java.lang.Object, java.lang.Object[]) @bci=87, line=57 (Interpreted frame)
- sun.reflect.DelegatingMethodAccessorImpl.invoke(java.lang.Object, java.lang.Object[]) @bci=6, line=43 (Compiled frame)
- java.lang.reflect.Method.invoke(java.lang.Object, java.lang.Object[]) @bci=57, line=606 (Compiled frame)
- org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(java.lang.Object, java.lang.reflect.Method, java.lang.Object[]) @bci=7, line=317 (Interpreted frame)
- org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint() @bci=12, line=190 (Interpreted frame)
- org.springframework.aop.framework.ReflectiveMethodInvocation.proceed() @bci=19, line=157 (Interpreted frame)
- org.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(org.aopalliance.intercept.MethodInvocation) @bci=1, line=133 (Interpreted frame)
- org.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(org.aopalliance.intercept.MethodInvocation) @bci=75, line=121 (Interpreted frame)
- org.springframework.aop.framework.ReflectiveMethodInvocation.proceed() @bci=101, line=179 (Interpreted frame)
- org.springframework.aop.framework.JdkDynamicAopProxy.invoke(java.lang.Object, java.lang.reflect.Method, java.lang.Object[]) @bci=321, line=207 (Interpreted frame)
- com.sun.proxy.$Proxy154.execute(org.springframework.batch.core.StepContribution, org.springframework.batch.core.scope.context.ChunkContext) @bci=20 (Interpreted frame)
- org.springframework.batch.core.step.tasklet.TaskletStep$ChunkTransactionCallback.doInTransaction(org.springframework.transaction.TransactionStatus) @bci=79, line=406 (Interpreted frame)
- org.springframework.batch.core.step.tasklet.TaskletStep$ChunkTransactionCallback.doInTransaction(org.springframework.transaction.TransactionStatus) @bci=2, line=330 (Interpreted frame)
- org.springframework.transaction.support.TransactionTemplate.execute(org.springframework.transaction.support.TransactionCallback) @bci=38, line=133 (Interpreted frame)
- org.springframework.batch.core.step.tasklet.TaskletStep$2.doInChunkContext(org.springframework.batch.repeat.RepeatContext, org.springframework.batch.core.scope.context.ChunkContext) @bci=58, line=271 (Interpreted frame)
- org.springframework.batch.core.scope.context.StepContextRepeatCallback.doInIteration(org.springframework.batch.repeat.RepeatContext) @bci=104, line=77 (Interpreted frame)
- org.springframework.batch.repeat.support.RepeatTemplate.getNextResult(org.springframework.batch.repeat.RepeatContext, org.springframework.batch.repeat.RepeatCallback, org.springframework.batch.repeat.support.RepeatInternalState) @bci=52, line=368 (Interpreted frame)
- org.springframework.batch.repeat.support.RepeatTemplate.executeInternal(org.springframework.batch.repeat.RepeatCallback) @bci=177, line=215 (Interpreted frame)
- org.springframework.batch.repeat.support.RepeatTemplate.iterate(org.springframework.batch.repeat.RepeatCallback) @bci=10, line=144 (Interpreted frame)
- org.springframework.batch.core.step.tasklet.TaskletStep.doExecute(org.springframework.batch.core.StepExecution) @bci=75, line=257 (Interpreted frame)
- org.springframework.batch.core.step.AbstractStep.execute(org.springframework.batch.core.StepExecution) @bci=87, line=198 (Interpreted frame)
- org.springframework.batch.core.partition.support.TaskExecutorPartitionHandler$1.call() @bci=8, line=139 (Interpreted frame)
- org.springframework.batch.core.partition.support.TaskExecutorPartitionHandler$1.call() @bci=1, line=136 (Interpreted frame)
- java.util.concurrent.FutureTask$Sync.innerRun() @bci=29, line=334 (Interpreted frame)
- java.util.concurrent.FutureTask.run() @bci=4, line=166 (Interpreted frame)
- java.lang.Thread.run() @bci=11, line=724 (Interpreted frame)
答案 0 :(得分：0)
您无法从单个调用堆栈调试高CPU使用率。由于线程的CPU使用率很高，因此调用堆栈可能会随时间而变化。因此，您需要多个调用堆栈才能告诉它正在做什么。获取几个线程转储并找到调用堆栈的公共部分。
更改调用堆栈的唯一例外是单个函数内的无限循环。这不太可能，因为java.net.SocketInputStream用于全球如此多的应用程序，有人会注意到这一点。
在这种特殊情况下，涉及数据库。也许SQL查询只选择大量数据。使用Wireshark检查您是否可以找到传输的内容。
我注意到的下一件事是org.springframework.batch.repeat.support.RepeatTemplate.iterate。我从来没有使用过Spring，所以我不知道它是做什么的，但听起来很像它会重复几次。你也可以考虑一下。