hadoop的hdfs的文件系统里面有这个错误日志，信息，看看
!SESSION 2016-01-26 15:31:59.407 ----------------------------------------------- eclipse.buildId=4.5.1.M20150904-0015 java.version=1.8.0_60 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -product org.eclipse.epp.package.jee.product Command-line arguments: -os linux -ws gtk -arch x86_64 -product org.eclipse.epp.package.jee.product !ENTRY org.eclipse.epp.logging.aeri.ui 2 5 2016-01-26 15:40:15.714 !MESSAGE The configuration download failed. Version: 1.0.1.v20150913-0716 !STACK 0 java.net.SocketTimeoutException: Read timed out at java.net.SocketInputStream.socketRead0(Native Method) at java.net.SocketInputStream.socketRead(SocketInputStream.java:116) at java.net.SocketInputStream.read(SocketInputStream.java:170) at java.net.SocketInputStream.read(SocketInputStream.java:141) at sun.security.ssl.InputRecord.readFully(InputRecord.java:465) at sun.security.ssl.InputRecord.read(InputRecord.java:503) at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:973) at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:930) at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) at org.apache.http.impl.io.SessionInputBufferImpl.streamRead(SessionInputBufferImpl.java:136) at org.apache.http.impl.io.SessionInputBufferImpl.fillBuffer(SessionInputBufferImpl.java:152) at org.apache.http.impl.io.SessionInputBufferImpl.readLine(SessionInputBufferImpl.java:270) at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:140) at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:57) at org.apache.http.impl.io.AbstractMessageParser.parse(AbstractMessageParser.java:260) at org.apache.http.impl.DefaultBHttpClientConnection.receiveResponseHeader(DefaultBHttpClientConnection.java:161) at org.apache.http.impl.conn.CPoolProxy.receiveResponseHeader(CPoolProxy.java:153) at org.apache.http.protocol.HttpRequestExecutor.doReceiveResponse(HttpRequestExecutor.java:271) at org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:123) at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:254) at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:195) at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:86) at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:108) at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:184) at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82) at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:57) at org.apache.http.client.fluent.Executor.execute(Executor.java:206) at org.eclipse.epp.internal.logging.aeri.ui.v2.AeriServer.request(AeriServer.java:57) at org.eclipse.epp.internal.logging.aeri.ui.v2.AeriServer.refreshConfiguration(AeriServer.java:73) at org.eclipse.epp.internal.logging.aeri.ide.Startup.initializeServerAndConfiguration(Startup.java:211) at org.eclipse.epp.internal.logging.aeri.ide.Startup.access$4(Startup.java:201) at org.eclipse.epp.internal.logging.aeri.ide.Startup$1.run(Startup.java:98) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) !ENTRY org.eclipse.epp.logging.aeri.ui 2 29 2016-01-26 15:40:15.742 !MESSAGE Startup failed, AERI is disabled until next restart. Version: 1.0.1.v20150913-0716 !STACK 0 java.lang.RuntimeException: java.net.SocketTimeoutException: Read timed out at com.google.common.base.Throwables.propagate(Throwables.java:160) at org.eclipse.epp.internal.logging.aeri.ide.Startup.initializeServerAndConfiguration(Startup.java:219) at org.eclipse.epp.internal.logging.aeri.ide.Startup.access$4(Startup.java:201) at org.eclipse.epp.internal.logging.aeri.ide.Startup$1.run(Startup.java:98) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.net.SocketTimeoutException: Read timed out at java.net.SocketInputStream.socketRead0(Native Method) at java.net.SocketInputStream.socketRead(SocketInputStream.java:116) at java.net.SocketInputStream.read(SocketInputStream.java:170) at java.net.SocketInputStream.read(SocketInputStream.java:141) at sun.security.ssl.InputRecord.readFully(InputRecord.java:465) at sun.security.ssl.InputRecord.read(InputRecord.java:503) at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:973) at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:930) at sun.security.ssl.AppInputStream.read(AppInputStream.java:105) at org.apache.http.impl.io.SessionInputBufferImpl.streamRead(SessionInputBufferImpl.java:136) at org.apache.http.impl.io.SessionInputBufferImpl.fillBuffer(SessionInputBufferImpl.java:152) at org.apache.http.impl.io.SessionInputBufferImpl.readLine(SessionInputBufferImpl.java:270) at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:140) at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:57) at org.apache.http.impl.io.AbstractMessageParser.parse(AbstractMessageParser.java:260) at org.apache.http.impl.DefaultBHttpClientConnection.receiveResponseHeader(DefaultBHttpClientConnection.java:161) at org.apache.http.impl.conn.CPoolProxy.receiveResponseHeader(CPoolProxy.java:153) at org.apache.http.protocol.HttpRequestExecutor.doReceiveResponse(HttpRequestExecutor.java:271) at org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:123) at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:254) at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:195) at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:86) at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:108) at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:184) at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82) at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:57) at org.apache.http.client.fluent.Executor.execute(Executor.java:206) at org.eclipse.epp.internal.logging.aeri.ui.v2.AeriServer.request(AeriServer.java:57) at org.eclipse.epp.internal.logging.aeri.ui.v2.AeriServer.refreshConfiguration(AeriServer.java:73) at org.eclipse.epp.internal.logging.aeri.ide.Startup.initializeServerAndConfiguration(Startup.java:211) ... 3 more !ENTRY org.eclipse.jface 4 0 2016-01-26 15:49:25.609 !MESSAGE org.eclipse.swt.SWTException: Widget is disposed !STACK 0 org.eclipse.swt.SWTException: Widget is disposed at org.eclipse.swt.SWT.error(SWT.java:4491) at org.eclipse.swt.SWT.error(SWT.java:4406) at org.eclipse.swt.SWT.error(SWT.java:4377) at org.eclipse.swt.widgets.Widget.error(Widget.java:482) at org.eclipse.swt.widgets.Widget.checkWidget(Widget.java:419) at org.eclipse.swt.widgets.Combo.setItems(Combo.java:2030) at org.eclipse.jst.j2ee.internal.ui.JavaEEDeploymentAssemblyAdvancedSectionBuilder.updateSourceMappingsCombo(JavaEEDeploymentAssemblyAdvancedSectionBuilder.java:199) at org.eclipse.jst.j2ee.internal.ui.JavaEEDeploymentAssemblyAdvancedSectionBuilder.loadDefaultDeploymentDescriptorFolderContents(JavaEEDeploymentAssemblyAdvancedSectionBuilder.java:161) at org.eclipse.jst.j2ee.internal.ui.JavaEEDeploymentAssemblyAdvancedSectionBuilder.loadContents(JavaEEDeploymentAssemblyAdvancedSectionBuilder.java:130) at org.eclipse.jst.j2ee.internal.ui.JavaEEDeploymentAssemblyAdvancedSectionBuilder.saveContents(JavaEEDeploymentAssemblyAdvancedSectionBuilder.java:141) at org.eclipse.jst.j2ee.internal.ui.J2EEModuleDependenciesPropertyPage.performOk(J2EEModuleDependenciesPropertyPage.java:375) at org.eclipse.wst.common.componentcore.ui.propertypage.ModuleAssemblyRootPage.performOk(ModuleAssemblyRootPage.java:97) at org.eclipse.jface.preference.PreferenceDialog$12.run(PreferenceDialog.java:925) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:50) at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:173) at org.eclipse.jface.preference.PreferenceDialog.okPressed(PreferenceDialog.java:909) at org.eclipse.ui.internal.dialogs.FilteredPreferenceDialog.okPressed(FilteredPreferenceDialog.java:409) at org.eclipse.jface.preference.PreferenceDialog.buttonPressed(PreferenceDialog.java:233) at org.eclipse.jface.dialogs.Dialog$2.widgetSelected(Dialog.java:619) at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:248) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4481) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1329) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3819) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3430) at org.eclipse.jface.window.Window.runEventLoop(Window.java:827) at org.eclipse.jface.window.Window.open(Window.java:803) at org.eclipse.ui.dialogs.PropertyDialogAction.run(PropertyDialogAction.java:157) at org.eclipse.jface.action.Action.runWithEvent(Action.java:473) at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:595) at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:511) at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:420) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4481) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1329) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3819) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3430) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$4.run(PartRenderingEngine.java:1127) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1018) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:156) at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:654) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:598) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:139) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:380) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:235) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:497) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:669) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:608) at org.eclipse.equinox.launcher.Main.run(Main.java:1515) at org.eclipse.equinox.launcher.Main.main(Main.java:1488) !ENTRY org.eclipse.jdt.debug.ui 4 150 2016-01-26 15:57:07.018 !MESSAGE Internal Error !STACK 0 java.lang.InterruptedException at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:417) at org.eclipse.debug.internal.ui.launchConfigurations.LaunchConfigurationsDialog.run(LaunchConfigurationsDialog.java:1298) at org.eclipse.jdt.internal.debug.ui.launcher.MainMethodSearchEngine.searchMainMethods(MainMethodSearchEngine.java:166) at org.eclipse.jdt.internal.debug.ui.launcher.SharedJavaMainTab.initializeMainTypeAndName(SharedJavaMainTab.java:116) at org.eclipse.jdt.debug.ui.launchConfigurations.AppletMainTab.initializeDefaults(AppletMainTab.java:185) at org.eclipse.jdt.debug.ui.launchConfigurations.AppletMainTab.setDefaults(AppletMainTab.java:271) at org.eclipse.debug.ui.AbstractLaunchConfigurationTabGroup.setDefaults(AbstractLaunchConfigurationTabGroup.java:77) at org.eclipse.debug.internal.ui.launchConfigurations.LaunchConfigurationTabGroupWrapper.setDefaults(LaunchConfigurationTabGroupWrapper.java:248) at org.eclipse.debug.internal.ui.launchConfigurations.CreateLaunchConfigurationAction.performAction(CreateLaunchConfigurationAction.java:80) at org.eclipse.debug.internal.ui.launchConfigurations.AbstractLaunchConfigurationAction$1.run(AbstractLaunchConfigurationAction.java:107) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70) at org.eclipse.debug.internal.ui.launchConfigurations.AbstractLaunchConfigurationAction.run(AbstractLaunchConfigurationAction.java:110) at org.eclipse.debug.internal.ui.launchConfigurations.LaunchConfigurationsDialog$1.run(LaunchConfigurationsDialog.java:542) at org.eclipse.debug.ui.AbstractDebugView.doubleClick(AbstractDebugView.java:765) at org.eclipse.jface.viewers.StructuredViewer$1.run(StructuredViewer.java:832) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:50) at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:173) at org.eclipse.jface.viewers.StructuredViewer.fireDoubleClick(StructuredViewer.java:829) at org.eclipse.jface.viewers.AbstractTreeViewer.handleDoubleSelect(AbstractTreeViewer.java:1470) at org.eclipse.jface.viewers.StructuredViewer$4.widgetDefaultSelected(StructuredViewer.java:1263) at org.eclipse.jface.util.OpenStrategy.fireDefaultSelectionEvent(OpenStrategy.java:252) at org.eclipse.jface.util.OpenStrategy.access$0(OpenStrategy.java:249) at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:311) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4481) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1329) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3819) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3430) at org.eclipse.jface.window.Window.runEventLoop(Window.java:827) at org.eclipse.jface.window.Window.open(Window.java:803) at org.eclipse.debug.internal.ui.launchConfigurations.LaunchConfigurationsDialog.open(LaunchConfigurationsDialog.java:1154) at org.eclipse.debug.ui.DebugUITools$2.run(DebugUITools.java:619) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70) at org.eclipse.debug.ui.DebugUITools.openLaunchConfigurationDialogOnGroup(DebugUITools.java:627) at org.eclipse.debug.ui.DebugUITools.openLaunchConfigurationDialogOnGroup(DebugUITools.java:560) at org.eclipse.debug.ui.actions.OpenLaunchDialogAction.run(OpenLaunchDialogAction.java:82) at org.eclipse.jface.action.Action.runWithEvent(Action.java:473) at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:595) at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:511) at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:420) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4481) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1329) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1353) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1338) at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1119) at org.eclipse.jface.action.ActionContributionItem$9.handleEvent(ActionContributionItem.java:1293) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4481) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1329) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3819) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3430) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$4.run(PartRenderingEngine.java:1127) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1018) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:156) at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:654) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:598) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:139) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:380) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:235) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:497) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:669) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:608) at org.eclipse.equinox.launcher.Main.run(Main.java:1515) at org.eclipse.equinox.launcher.Main.main(Main.java:1488) !ENTRY org.eclipse.equinox.p2.repository 4 1002 2016-01-27 10:04:49.949 !MESSAGE Communication with repository at http://download.eclipse.org/eclipse/updates/4.5/content.xml.xz failed. !STACK 0 java.net.SocketTimeoutException: Read timed out at java.net.SocketInputStream.socketRead0(Native Method) at java.net.SocketInputStream.socketRead(SocketInputStream.java:116) at java.net.SocketInputStream.read(SocketInputStream.java:170) at java.net.SocketInputStream.read(SocketInputStream.java:141) at org.apache.http.impl.io.AbstractSessionInputBuffer.fillBuffer(AbstractSessionInputBuffer.java:160) at org.apache.http.impl.io.SocketInputBuffer.fillBuffer(SocketInputBuffer.java:84) at org.apache.http.impl.io.AbstractSessionInputBuffer.readLine(AbstractSessionInputBuffer.java:273) at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:140) at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:57) at org.apache.http.impl.io.AbstractMessageParser.parse(AbstractMessageParser.java:260) at org.apache.http.impl.AbstractHttpClientConnection.receiveResponseHeader(AbstractHttpClientConnection.java:283) at org.apache.http.impl.conn.DefaultClientConnection.receiveResponseHeader(DefaultClientConnection.java:251) at org.apache.http.impl.conn.ManagedClientConnectionImpl.receiveResponseHeader(ManagedClientConnectionImpl.java:197) at org.apache.http.protocol.HttpRequestExecutor.doReceiveResponse(HttpRequestExecutor.java:271) at org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:123) at org.apache.http.impl.client.DefaultRequestDirector.tryExecute(DefaultRequestDirector.java:685) at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:487) at org.apache.http.impl.client.AbstractHttpClient.doExecute(AbstractHttpClient.java:863) at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82) at org.eclipse.ecf.provider.filetransfer.httpclient4.HttpClientFileSystemBrowser.runRequest(HttpClientFileSystemBrowser.java:259) at org.eclipse.ecf.provider.filetransfer.browse.AbstractFileSystemBrowser$DirectoryJob.run(AbstractFileSystemBrowser.java:69) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) !ENTRY org.eclipse.equinox.p2.repository 4 1002 2016-01-27 10:09:58.199 !MESSAGE Communication with repository at http://download.eclipse.org/oomph/updates/milestone/latest/content.xml.xz failed. !STACK 0 java.net.SocketTimeoutException: Read timed out at java.net.SocketInputStream.socketRead0(Native Method) at java.net.SocketInputStream.socketRead(SocketInputStream.java:116) at java.net.SocketInputStream.read(SocketInputStream.java:170) at java.net.SocketInputStream.read(SocketInputStream.java:141) at org.apache.http.impl.io.AbstractSessionInputBuffer.fillBuffer(AbstractSessionInputBuffer.java:160) at org.apache.http.impl.io.SocketInputBuffer.fillBuffer(SocketInputBuffer.java:84) at org.apache.http.impl.io.AbstractSessionInputBuffer.readLine(AbstractSessionInputBuffer.java:273) at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:140) at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:57) at org.apache.http.impl.io.AbstractMessageParser.parse(AbstractMessageParser.java:260) at org.apache.http.impl.AbstractHttpClientConnection.receiveResponseHeader(AbstractHttpClientConnection.java:283) at org.apache.http.impl.conn.DefaultClientConnection.receiveResponseHeader(DefaultClientConnection.java:251) at org.apache.http.impl.conn.ManagedClientConnectionImpl.receiveResponseHeader(ManagedClientConnectionImpl.java:197) at org.apache.http.protocol.HttpRequestExecutor.doReceiveResponse(HttpRequestExecutor.java:271) at org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:123) at org.apache.http.impl.client.DefaultRequestDirector.tryExecute(DefaultRequestDirector.java:685) at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:487) at org.apache.http.impl.client.AbstractHttpClient.doExecute(AbstractHttpClient.java:863) at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82) at org.eclipse.ecf.provider.filetransfer.httpclient4.HttpClientFileSystemBrowser.runRequest(HttpClientFileSystemBrowser.java:259) at org.eclipse.ecf.provider.filetransfer.browse.AbstractFileSystemBrowser$DirectoryJob.run(AbstractFileSystemBrowser.java:69) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) !ENTRY org.eclipse.equinox.p2.transport.ecf 4 1002 2016-01-27 10:14:56.088 !MESSAGE Unable to read repository at http://download.eclipse.org/webtools/repository/mars/content.xml. !STACK 0 java.net.SocketTimeoutException: Read timed out at java.net.SocketInputStream.socketRead0(Native Method) at java.net.SocketInputStream.socketRead(SocketInputStream.java:116) at java.net.SocketInputStream.read(SocketInputStream.java:170) at java.net.SocketInputStream.read(SocketInputStream.java:141) at org.apache.http.impl.io.AbstractSessionInputBuffer.fillBuffer(AbstractSessionInputBuffer.java:160) at org.apache.http.impl.io.SocketInputBuffer.fillBuffer(SocketInputBuffer.java:84) at org.apache.http.impl.io.AbstractSessionInputBuffer.readLine(AbstractSessionInputBuffer.java:273) at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:140) at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:57) at org.apache.http.impl.io.AbstractMessageParser.parse(AbstractMessageParser.java:260) at org.apache.http.impl.AbstractHttpClientConnection.receiveResponseHeader(AbstractHttpClientConnection.java:283) at org.apache.http.impl.conn.DefaultClientConnection.receiveResponseHeader(DefaultClientConnection.java:251) at org.apache.http.impl.conn.ManagedClientConnectionImpl.receiveResponseHeader(ManagedClientConnectionImpl.java:197) at org.apache.http.protocol.HttpRequestExecutor.doReceiveResponse(HttpRequestExecutor.java:271) at org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:123) at org.apache.http.impl.client.DefaultRequestDirector.tryExecute(DefaultRequestDirector.java:685) at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:487) at org.apache.http.impl.client.AbstractHttpClient.doExecute(AbstractHttpClient.java:863) at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82) at org.eclipse.ecf.provider.filetransfer.httpclient4.HttpClientFileSystemBrowser.runRequest(HttpClientFileSystemBrowser.java:259) at org.eclipse.ecf.provider.filetransfer.browse.AbstractFileSystemBrowser$DirectoryJob.run(AbstractFileSystemBrowser.java:69) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
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1）查看datanode跟namenode的日志文件。
2）确认集群是否正常启动
3）/etc/hosts下是否配置没问题
4）hadoop的节点之间，是否配置了无密码登录
是不是域名服务器的问题，看样子是无法解析域名，访问超时。