The Neo4j server is registered at port 7474, but the backup server isn't...
you usually don't need to specify port so that the default can be used. What
you'll have to do is:
* Add "enable_online_backup = true" to your neo4j configuration file and
restart the server (if that wasn't the case).
* Use OnlineBackup.from( "localhost" );
and it should work (just tried it).
2011/2/14 Brendan Cheng <ccp...@gmail.com>
> Hi,
>
> I was trying to test the online backup process. I received a
> ComException saying "Channel has been closed".
>
> Here is my code which is copied from your Testbackup with a small
> modification:
>
> private String serverPath = "localhost";
> private String backupPath = "target/var/backuedup-serverdb";
>
> public void fullThenIncremental() throws Exception
> {
> ServerInterface server = startServer();
> OnlineBackup backup = OnlineBackup.from( "localhost",7474 );
> backup.full( backupPath );
> shutdownServer( server );
>
> DbRepresentation furtherRepresentation = addMoreData();
> server = startServer();
> backup.incremental( backupPath );
> assertEquals( furtherRepresentation, DbRepresentation.of(
> backupPath ) );
> shutdownServer( server );
> }
>
> and the error message is:
>
> run:
> Mon Feb 14 13:37:54 CST 2011: Client connected to localhost:7474
> Mon Feb 14 13:37:54 CST 2011: Opened a new channel to localhost/
> 127.0.0.1:7474
> 2011/2/14 01:37:54 itags.Sync.SyncData main
> : null
> org.neo4j.com.ComException: org.neo4j.com.ComException: Channel has been
> closed
> at org.neo4j.com.Client.sendRequest(Client.java:183)
> at org.neo4j.com.backup.BackupClient.fullBackup(BackupClient.java:42)
> at org.neo4j.com.backup.OnlineBackup.full(OnlineBackup.java:67)
> at itags.Sync.SyncData.fullThenIncremental(SyncData.java:45)
> at itags.Sync.SyncData.main(SyncData.java:232)
> Caused by: org.neo4j.com.ComException: Channel has been closed
> at org.neo4j.com.Client$2.readNext(Client.java:159)
> at
> org.neo4j.com.DechunkingChannelBuffer.readNextChunk(DechunkingChannelBuffer.java:79)
> at
> org.neo4j.com.DechunkingChannelBuffer.<init>(DechunkingChannelBuffer.java:50)
> at org.neo4j.com.Client$2.<init>(Client.java:151)
> at org.neo4j.com.Client.sendRequest(Client.java:150)
> ... 4 more
>
> I have my db server started as window service.
>
> Also, I want to know if we need the process "startServer()" if the db
> server has been started.
>
> Regards,
>
> Brendan
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> User@lists.neo4j.org
> https://lists.neo4j.org/mailman/listinfo/user
>
--
Mattias Persson, [matt...@neotechnology.com]
Hacker, Neo Technology
www.neotechnology.com
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