On 12.08.10 01:07, David Van Couvering wrote:
Looks like it was a slash/forward-slash issue. I changed my code to
use File.separator and this very strange bug (it would only happen
sometimes, and only on some machines) looks like it has gone away.
Since the problem is intermittent, could it be caused by multiple
threads trying to boot the database?
And in case somebody wants to pursue this issue later, do you know if it
happened across a range of different JVMs?
Thanks,
--
Kristian
Thanks,
David
On Tue, Aug 10, 2010 at 1:48 AM, Kristian Waagan
<[email protected] <mailto:[email protected]>> wrote:
On 09.08.10 23:55, David Van Couvering wrote:
I am getting these intermittent errors that I can't reproduce on
my machine:
Database
'C:\VontuDev\main\dist\scan\incremental_index/MONITOR/INCREMENTAL_INFO' not
found
I read the docs, and there is no discussion about whether a mixed
"\" "/" path is a problem on some systems. Could it be? Do I
need to normalize the path to all forward slashes?
Hi David,
I guess there can be problems related to mixing different path
separators, but testing on OpenSolaris does suggest that the
monitor and the in-memory back end are capable of handling it:
java
-Dderby.system.home="C:\VontuDev\main\dist\scan\incremental_index"
-cp classes org.apache.derby.tools.ij
ij version 10.7
ij> connect 'jdbc:derby:memory:MONITOR/INCREMENTAL_INFO;create=true';
ij>
Then, from derby.log:
memory:/home/user/derby/wdir/trunk-netbeans/C:\VontuDev\main\dist\scan\incremental_index/MONITOR/INCREMENTAL_INFO
However, trying this with an on-disk database fails. My guess is
because I'm on UNIX, and then the colon from c:\ shows up in a
place it's not supposed to be.
In general, I think your mileage depends on what java.io.File is
capable of, but there might be problems in the explicit path
handling within Derby.
Do you get an assert failure if you run with a sane build when you
try to boot the database?
Regards,
--
Kristian
What can cause this error to happen? I checked, and the
directory is there on the system.
Thanks,
David
--
David W. Van Couvering
http://www.linkedin.com/in/davidvc
http://davidvancouvering.blogspot.com
http://twitter.com/dcouvering
--
David W. Van Couvering
http://www.linkedin.com/in/davidvc
http://davidvancouvering.blogspot.com
http://twitter.com/dcouvering
