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From "Brett Mason" <b.ma...@adinstruments.com>
Subject Disappearing service.properties file
Date Mon, 30 May 2011 03:27:13 GMT

We've recently had some of customer reports come in where Derby is failing
with problems related to "service.properties". There are three different
cases but all appear to be similar:

Case 1:
"ERROR XBM0S: Unable to rename file 'C:\PATH_TO_DB\service.properties' to
'C:\PATH_TO_DB\service.propertiesold' " is thrown when trying to call
SYSCS_DISABLE_LOG_ARCHIVE_MODE(1). Both "service.properties" and
"service.propertiesold" are present in the database directory. Removing
"service.propertiesold" corrects the problem.

Case 2:
"SQLException: Database 'C:\PATH_TO_DB' not found" is thrown when booting
the database. The file service.properties does not exist in the database
directory but service.propertiesold does exist. Renaming the file back to
"service.properties" corrects the problem.

Case 3: 
Same as Case 2, except both "service.properties" and "service.propertiesold"
are missing. We will probably use a backup to restore service.properties in
this case.


In all cases there are no errors logged from the database prior to the
problems above. I suspect derby has been terminated or interrupted while
updating the service.properties file and left the file system in an
inconsistent state. Although I imagine the window for this to happen would
be fairly narrow.

As far as I can tell the call to SYSCS_DISABLE_LOG_ARCHIVE_MODE(1), which is
called during our nightly maintenance task, is the only place in our
application which updates service.properties. Fortunately this call is no
longer needed so we have removed it.


Does this assessment sound reasonable? Are there any other steps we should
be taking to avoid this problem?

I've included details of the customer environments and full exception
details below.

Thanks,
Brett.


The details:

Environment:
- Derby 10.6.1.0
- Sun JavaSE 1.6 update 20 32-bit.
- Windows XP/7

Exception 1:
Caused by: java.sql.SQLException: The exception
'org.apache.derby.iapi.error.PassThroughException: ERROR XBM0S: Unable to
rename file 'C:\PATH_TO_DB\service.properties' to
'C:\PATH_TO_DB\service.propertiesold'' was thrown while evaluating an
expression.
	at
org.apache.derby.impl.jdbc.SQLExceptionFactory40.getSQLException(Unknown
Source)
	at org.apache.derby.impl.jdbc.Util.newEmbedSQLException(Unknown
Source)
	at org.apache.derby.impl.jdbc.Util.seeNextException(Unknown Source)
	at
org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQLException(Unknow
n Source)
	at
org.apache.derby.impl.jdbc.TransactionResourceImpl.handleException(Unknown
Source)
	at
org.apache.derby.impl.jdbc.EmbedConnection.handleException(Unknown Source)
	at
org.apache.derby.impl.jdbc.ConnectionChild.handleException(Unknown Source)
	at
org.apache.derby.impl.jdbc.EmbedStatement.executeStatement(Unknown Source)
	at
org.apache.derby.impl.jdbc.EmbedPreparedStatement.executeStatement(Unknown
Source)
	at org.apache.derby.impl.jdbc.EmbedPreparedStatement.execute(Unknown
Source)
	... 43 more
Caused by: java.sql.SQLException: The exception
'org.apache.derby.iapi.error.PassThroughException: ERROR XBM0S: Unable to
rename file 'C:\PATH_TO_DB\service.properties' to
'C:\PATH_TO_DB\service.propertiesold'' was thrown while evaluating an
expression.
	at
org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(Unknown
Source)
	at
org.apache.derby.impl.jdbc.SQLExceptionFactory40.wrapArgsForTransportAcrossD
RDA(Unknown Source)
	... 53 more
Caused by: java.sql.SQLException: Java exception: 'ERROR XBM0S: Unable to
rename file 'C:\PATH_TO_DB\service.properties' to
'C:\PATH_TO_DB\service.propertiesold':
org.apache.derby.iapi.error.PassThroughException'.
	at
org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(Unknown
Source)
	at
org.apache.derby.impl.jdbc.SQLExceptionFactory40.wrapArgsForTransportAcrossD
RDA(Unknown Source)
	at
org.apache.derby.impl.jdbc.SQLExceptionFactory40.getSQLException(Unknown
Source)
	at org.apache.derby.impl.jdbc.Util.newEmbedSQLException(Unknown
Source)
	at org.apache.derby.impl.jdbc.Util.javaException(Unknown Source)
	at
org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQLException(Unknow
n Source)
	... 50 more
Caused by: org.apache.derby.iapi.error.PassThroughException: ERROR XBM0S:
Unable to rename file 'C:\PATH_TO_DB\service.properties' to
'C:\PATH_TO_DB\service.propertiesold'
	at
org.apache.derby.impl.services.monitor.UpdateServiceProperties.update(Unknow
n Source)
	at
org.apache.derby.impl.services.monitor.UpdateServiceProperties.put(Unknown
Source)
	at
org.apache.derby.impl.store.access.PropertyConglomerate.saveServiceProperty(
Unknown Source)
	at
org.apache.derby.impl.store.access.PropertyConglomerate.saveProperty(Unknown
Source)
	at
org.apache.derby.impl.store.access.PropertyConglomerate.setProperty(Unknown
Source)
	at
org.apache.derby.impl.store.access.RAMTransaction.setProperty(Unknown
Source)
	at
org.apache.derby.impl.store.raw.log.LogToFile.disableLogArchiveMode(Unknown
Source)
	at
org.apache.derby.impl.store.raw.RawStore.disableLogArchiveMode(Unknown
Source)
	at
org.apache.derby.impl.store.access.RAMAccessManager.disableLogArchiveMode(Un
known Source)
	at
org.apache.derby.impl.db.BasicDatabase.disableLogArchiveMode(Unknown Source)
	at
org.apache.derby.catalog.SystemProcedures.SYSCS_DISABLE_LOG_ARCHIVE_MODE(Unk
nown Source)
	at
org.apache.derby.exe.acf477c2e6x012dxb876xe76exffffcae058941.g0(Unknown
Source)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at
org.apache.derby.impl.services.reflect.ReflectMethod.invoke(Unknown Source)
	at
org.apache.derby.impl.sql.execute.CallStatementResultSet.open(Unknown
Source)
	at
org.apache.derby.impl.sql.GenericPreparedStatement.executeStmt(Unknown
Source)
	at
org.apache.derby.impl.sql.GenericPreparedStatement.execute(Unknown Source)
	... 46 more
Caused by: ERROR XBM0S: Unable to rename file
'C:\PATH_TO_DB\service.properties' to 'C:\PATH_TO_DB\service.propertiesold'
	at
org.apache.derby.iapi.error.StandardException.newException(Unknown Source)
	at
org.apache.derby.impl.services.monitor.StorageFactoryService$5.run(Unknown
Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at
org.apache.derby.impl.services.monitor.StorageFactoryService.saveServiceProp
erties(Unknown Source)
	... 66 more


Exception 2:
Caused by: java.sql.SQLException: Database 'C:\PATH_TO_DB' not found.
	at
org.apache.derby.impl.jdbc.SQLExceptionFactory40.getSQLException(Unknown
Source)
	at org.apache.derby.impl.jdbc.Util.newEmbedSQLException(Unknown
Source)
	at org.apache.derby.impl.jdbc.Util.newEmbedSQLException(Unknown
Source)
	at org.apache.derby.impl.jdbc.Util.generateCsSQLException(Unknown
Source)
	at
org.apache.derby.impl.jdbc.EmbedConnection.newSQLException(Unknown Source)
	at
org.apache.derby.impl.jdbc.EmbedConnection.handleDBNotFound(Unknown Source)
	at org.apache.derby.impl.jdbc.EmbedConnection.<init>(Unknown Source)
	at org.apache.derby.impl.jdbc.EmbedConnection30.<init>(Unknown
Source)
	at org.apache.derby.impl.jdbc.EmbedConnection40.<init>(Unknown
Source)
	at org.apache.derby.jdbc.Driver40.getNewEmbedConnection(Unknown
Source)
	at org.apache.derby.jdbc.InternalDriver.connect(Unknown Source)
	at org.apache.derby.jdbc.EmbeddedDataSource.getConnection(Unknown
Source)
	at org.apache.derby.jdbc.EmbeddedDataSource.getConnection(Unknown
Source)
	at
com.ADInstruments.LTS.dataAccess.ConnectionFactory.openConnection(Unknown
Source)
	... 10 more
Caused by: java.sql.SQLException: Database 'C:\PATH_TO_DB' not found.
	at
org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(Unknown
Source)
	at
org.apache.derby.impl.jdbc.SQLExceptionFactory40.wrapArgsForTransportAcrossD
RDA(Unknown Source)
	... 24 more





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