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From Øystein Grøvlen (JIRA) <derby-...@db.apache.org>
Subject [jira] Created: (DERBY-555) Unable to restart after disk is full
Date Fri, 02 Sep 2005 14:32:12 GMT
Unable to restart after disk is full
------------------------------------

         Key: DERBY-555
         URL: http://issues.apache.org/jira/browse/DERBY-555
     Project: Derby
        Type: Bug
  Components: Store  
    Versions: 10.2.0.0    
 Environment: Sun Sparc Solaris, 1.4 JDK, Derby Client/Server
 Reporter: Øystein Grøvlen
 Assigned to: Øystein Grøvlen 
    Priority: Critical


1. Inserted data into the database until the disk was full. (5 clients inserting into 5 different
tables in parallel.)
2. Shut down the server
3. Start the database again without freeing any disk space.

When I try to start the database again, I get Null-pointer-exception, regardless of how I
connect (have tried embedded, client server, ij, jdbc applications).  I have not tried to
free some space on the disk before starting.  

The call stack is not available right now (the computer I used had to be shut down due to
problems with our cooling system), but the exception comes from the following line in RawStore.java:
     properties.put(Attribute.LOG_DEVICE, logFactory.getCanonicalLogPath());

getCanonicalLogPath() returns null which results in a NPE in the hash table.
A quick debug before the computer was stopped, showed that the logFactory was an instance
of org.apache.derby.impl.store.raw.log.ReadOnly which always returns null in its  getCanonicalLogPath().

I suspect this may be related to the fact that I ran with the log in a non-default location.


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