Thanks for your answer.


We have 18G available at the backup destination. The size of the database directory is: 17G. The strange thing is that it works one day, the other it doesn't.





Von: Peter Ondruška [mailto:peter.ondruska@kaibo.eu]
Gesendet: Freitag, 17. August 2012 14:44
An: Derby Discussion
Betreff: Re: Problems with Online Backup SYSCS_BACKUP_DATABASE


hi, there should be in the backup destination as much disk space available as your database size without logs.


On 17. 8. 2012, at 13:06, "Stefan R." <elstefanito@gmail.com> wrote:


We're using Derby DB (Version in a larger project. Our database size is now around 12GB. It is running as network service and is used as the data backend for several Java web projects, that are connecting to the database using the network jdbc client. One of the projects is triggering nightly backups using the command:




Randomly (every 2 or 3 days) the backup cannot complete because of the following exception:


Aug 13 00:03:14 srv- test-001 jsvc.exec[5953]: a:662)#012Caused by: org.apache.derby.client.am.SqlException: Cannot backup the database, got an I/O Exception while writing to the backup container file /mnt/backup/2012-08-13-00-00-00/bd/seg0/c9b1.dat.#012#011at org.apache.derby.client.am.Statement.completeExecute(Unknown Source)#012#011at org.apache.derby.client.net.NetStatementReply.parseEXCSQLSTTreply(Unknown Source)#012#011at org.apache.derby.client.net.NetStatementReply.readExecuteCall(Unknown Source)#012#011at org.apache.derby.client.net.StatementReply.readExecuteCall(Unknown Source)#012#011at org.apache.derby.client.net.NetStatement.readExecuteCall_(Unknown Source)#012#011at org.apache.derby.client.am.Statement.readExecuteCall(Unknown Source)#012#011at org.apache.derby.client.am.PreparedStatement.flowExecute(Unknown Source)#012#011at org.apache.derby.client.am.PreparedStatement.executeX(Unknown Source)#012#011... 21 more#012Caused by: org.apache.derby.client.am.SqlException: Java exception: 'No space left on device: java.io.IOException'.#012#011... 29 more


The available space on the target device is more than sufficient. We already started the derby process with the Java Option "-Djava.io.tmpdir" to point to a directory residing on a partition with more space. This did not help.


Do you have any suggestions? Which directories are used for running the backup and how much space needs to be availabe?


Thank you,