I think a have triggered a bug when svn poll occurs on a slave (and a change is
detected) if master does not have access to repository.

Here, the master is installed on our shared server (Tomcat) where nothing but
configuration is done (no checkout, no build, ...). Checkouts and builds are
delegated to slaves.

Master cannot access to repository because access is done via port forwarding
which is only activated on slaves (for security reason).

On slave, access to svn is done via URL like :
svn://localhost/ROOT/ARCH

Of course, I verified that access to repository works from slaves : manual
triggered build works fine.

But if the build is triggered by a SCM change, build fails with the following
message :

Started by an SCM change
Building remotely on host103
Updating svn://localhost/ROOT/SVN/SANDBOX/trunk
U date
At revision 1517
FATAL: revision check failed on svn://localhost/ROOT/SVN/SANDBOX/trunk
hudson.util.IOException2: revision check failed on
svn://localhost/ROOT/SVN/SANDBOX/trunk
at
hudson.scm.SubversionChangeLogBuilder.buildModule(SubversionChangeLogBuilder.java:157)
at hudson.scm.SubversionChangeLogBuilder.run(SubversionChangeLogBuilder.java:99)
at hudson.scm.SubversionSCM.calcChangeLog(SubversionSCM.java:404)
at hudson.scm.SubversionSCM.checkout(SubversionSCM.java:504)
at hudson.model.AbstractProject.checkout(AbstractProject.java:1001)
at hudson.model.AbstractBuild$AbstractRunner.checkout(AbstractBuild.java:428)
at hudson.model.AbstractBuild$AbstractRunner.run(AbstractBuild.java:376)
at hudson.model.Run.run(Run.java:1174)
at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:46)
at hudson.model.ResourceController.execute(ResourceController.java:88)
at hudson.model.Executor.run(Executor.java:123)
Caused by: org.tmatesoft.svn.core.SVNException: svn: connection refused by the
server
at
org.tmatesoft.svn.core.internal.wc.SVNErrorManager.error(SVNErrorManager.java:82)
at
org.tmatesoft.svn.core.internal.wc.SVNErrorManager.error(SVNErrorManager.java:69)
at
org.tmatesoft.svn.core.internal.io.svn.SVNPlainConnector.open(SVNPlainConnector.java:62)
at org.tmatesoft.svn.core.internal.io.svn.SVNConnection.open(SVNConnection.java:74)
at
org.tmatesoft.svn.core.internal.io.svn.SVNRepositoryImpl.openConnection(SVNRepositoryImpl.java:1237)
at
org.tmatesoft.svn.core.internal.io.svn.SVNRepositoryImpl.getLatestRevision(SVNRepositoryImpl.java:168)
at
org.tmatesoft.svn.core.wc.SVNBasicClient.getRevisionNumber(SVNBasicClient.java:482)
at org.tmatesoft.svn.core.wc.SVNBasicClient.getLocations(SVNBasicClient.java:851)
at
org.tmatesoft.svn.core.wc.SVNBasicClient.createRepository(SVNBasicClient.java:534)
at org.tmatesoft.svn.core.wc.SVNLogClient.doLog(SVNLogClient.java:1016)
at org.tmatesoft.svn.core.wc.SVNLogClient.doLog(SVNLogClient.java:891)
at org.tmatesoft.svn.core.wc.SVNLogClient.doLog(SVNLogClient.java:823)
at
hudson.scm.SubversionChangeLogBuilder.buildModule(SubversionChangeLogBuilder.java:145)
... 10 more
Caused by: java.net.ConnectException: Connection refused
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
at java.net.Socket.connect(Socket.java:519)
at
org.tmatesoft.svn.core.internal.util.SVNSocketConnection.run(SVNSocketConnection.java:57)
at java.lang.Thread.run(Thread.java:595)

For debugging purpose, I enabled tunnel from master to repository and it begins
to work as expected.