I set up a Jenkins job reference this page (http://selenium-grid.seleniumhq.org/continuous_testing_with_selenium_grid_subversion_and_hudson.html ).

I have some questions about Selenium Grid plugin(https://wiki.jenkins-ci.org/display/JENKINS/Selenium+Plugin).
1. If I use Source Code Management(Subversion) in the Jenkins job like reference page, source codes will pull source codes on the master or slave?
2. If I don't select "Tie this project to a node", source codes will pull on the master successfully.
But I select "Tie this project to a node", there will be a error like below

ERROR: Subversion checkout has been canceled
hudson.util.IOException2: remote file operation failed: /SeleniumGrid/dachang/workspace/Grid_SVN at hudson.remoting.Channel@14944:eh308013_Win7
at hudson.FilePath.act(FilePath.java:861)
at hudson.FilePath.act(FilePath.java:838)
at hudson.scm.SubversionSCM.checkout(SubversionSCM.java:743)
at hudson.scm.SubversionSCM.checkout(SubversionSCM.java:685)
at hudson.model.AbstractProject.checkout(AbstractProject.java:1353)
at hudson.model.AbstractBuild$AbstractBuildExecution.defaultCheckout(AbstractBuild.java:689)
at jenkins.scm.SCMCheckoutStrategy.checkout(SCMCheckoutStrategy.java:88)
at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:594)
at hudson.model.Run.execute(Run.java:1567)
at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:46)
at hudson.model.ResourceController.execute(ResourceController.java:88)
at hudson.model.Executor.run(Executor.java:237)
Caused by: java.io.InterruptedIOException
at hudson.scm.SubversionSCM$CheckOutTask.invoke(SubversionSCM.java:776)
at hudson.scm.SubversionSCM$CheckOutTask.invoke(SubversionSCM.java:753)
at hudson.FilePath$FileCallableWrapper.call(FilePath.java:2348)
at hudson.remoting.UserRequest.perform(UserRequest.java:118)
at hudson.remoting.UserRequest.perform(UserRequest.java:48)
at hudson.remoting.Request$2.run(Request.java:326)
at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:72)
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at hudson.remoting.Engine$1$1.run(Engine.java:58)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.InterruptedException
at hudson.scm.subversion.CheckoutUpdater$1.perform(CheckoutUpdater.java:87)
at hudson.scm.subversion.WorkspaceUpdater$UpdateTask.delegateTo(WorkspaceUpdater.java:136)
at hudson.scm.subversion.WorkspaceUpdater$UpdateTask.delegateTo(WorkspaceUpdater.java:144)
at hudson.scm.subversion.UpdateUpdater$TaskImpl.perform(UpdateUpdater.java:121)
at hudson.scm.subversion.WorkspaceUpdater$UpdateTask.delegateTo(WorkspaceUpdater.java:136)
at hudson.scm.SubversionSCM$CheckOutTask.perform(SubversionSCM.java:788)
at hudson.scm.SubversionSCM$CheckOutTask.invoke(SubversionSCM.java:769)
... 12 more
Caused by: org.tmatesoft.svn.core.SVNCancelException: svn: OPTIONS /repository/Selenium failed
at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection.request(HTTPConnection.java:294)
at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection.request(HTTPConnection.java:283)
at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection.request(HTTPConnection.java:271)
at org.tmatesoft.svn.core.internal.io.dav.DAVConnection.exchangeCapabilities(DAVConnection.java:533)
at org.tmatesoft.svn.core.internal.io.dav.DAVConnection.open(DAVConnection.java:98)
at org.tmatesoft.svn.core.internal.io.dav.DAVRepository.openConnection(DAVRepository.java:1011)
at org.tmatesoft.svn.core.internal.io.dav.DAVRepository.getLatestRevision(DAVRepository.java:180)
at org.tmatesoft.svn.core.wc.SVNBasicClient.getRevisionNumber(SVNBasicClient.java:482)
at org.tmatesoft.svn.core.wc.SVNBasicClient.getLocations(SVNBasicClient.java:876)
at org.tmatesoft.svn.core.wc.SVNBasicClient.createRepository(SVNBasicClient.java:534)
at org.tmatesoft.svn.core.wc.SVNUpdateClient.doCheckout(SVNUpdateClient.java:901)
at hudson.scm.subversion.CheckoutUpdater$1.perform(CheckoutUpdater.java:84)
... 18 more
Caused by: org.tmatesoft.svn.core.SVNCancelException: svn: No credential to try. Authentication failed
at org.tmatesoft.svn.core.internal.wc.SVNErrorManager.cancel(SVNErrorManager.java:37)
at org.tmatesoft.svn.core.internal.wc.SVNErrorManager.cancel(SVNErrorManager.java:32)
at org.tmatesoft.svn.core.internal.wc.DefaultSVNAuthenticationManager.getFirstAuthentication(DefaultSVNAuthenticationManager.java:181)
at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection._request(HTTPConnection.java:581)
at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection.request(HTTPConnection.java:292)
... 29 more
Caused by: org.tmatesoft.svn.core.SVNErrorMessage: svn: No credential to try. Authentication failed
at org.tmatesoft.svn.core.SVNErrorMessage.create(SVNErrorMessage.java:200)
at org.tmatesoft.svn.core.SVNErrorMessage.create(SVNErrorMessage.java:146)
at org.tmatesoft.svn.core.SVNErrorMessage.create(SVNErrorMessage.java:89)
... 34 more
Finished: FAILURE