Problems with Online Backup SYSCS_BACKUP_DATABASE
Hi, We're using Derby DB (Version 10.8.2.2) 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: CALL SYSCS_UTIL.SYSCS_BACKUP_DATABASE(?) 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, Stefan
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. Peter On 17. 8. 2012, at 13:06, Stefan R. elstefan...@gmail.com wrote: Hi, We're using Derby DB (Version 10.8.2.2) 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: CALL SYSCS_UTIL.SYSCS_BACKUP_DATABASE(?) 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, Stefan
AW: Problems with Online Backup SYSCS_BACKUP_DATABASE
Hi, 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. Stefan Von: Peter Ondruška [mailto:peter.ondru...@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. Peter On 17. 8. 2012, at 13:06, Stefan R. elstefan...@gmail.com wrote: Hi, We're using Derby DB (Version 10.8.2.2) 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: CALL SYSCS_UTIL.SYSCS_BACKUP_DATABASE(?) 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, Stefan
Re: Problems with Online Backup SYSCS_BACKUP_DATABASE
On 08/17/2012 04:05 AM, Stefan R. wrote: 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 ... 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. What sort of operating system and file system are being used? Perhaps you have disk quotas enabled? Some operating systems reserve a certain portion of the space on a filesystem, and won't let non-privileged processes write 100% of the space on the filesystem. Some filesystems have file size limits. Perhaps one of the tables is 4GB in size, and you're trying to write to a external thumb drive which is formatted FAT32 and won't allow larger files to be written. The easiest thing would seem to be to get a larger backup device. thanks, bryan
