Berkeley DB XML running on a Windows Vista Home Premium AMD 64 system

Question

Hello everybody,
following up on [a previous thread|http://forums.oracle.com/forums/message.jspa?messageID=3288630#3288630], the problem I have with Vista 64-bit seems to be more basic. If I download and install BDB XML 2.4.16 not even the command line tool works. It just shows the following error:
Joined existing environment
\dbxml\bin\dbxml: error at lowest level:Also trying to open any collection in Java using the provided examples fails upon creating a new XmlManager with the following output:
com.sleepycat.dbxml.XmlException: Uncaught exception from C++ API, errcode = INTERNAL_ERROR
     at com.sleepycat.dbxml.dbxml_javaJNI.new_XmlManager(Native Method)
     at com.sleepycat.dbxml.XmlManager.<init>(XmlManager.java:56)I have tried everything I can think of, installing BDB XML in the userspace, giving Administrator privileges, running in XP compatibility mode, to no avail. In the other thread the suggestion was to install a C++ compiler and try to build BDB XML from source, but I don't really have the time. Right now I am back to my old hardware to fix an urgent problem.
Has somebody successfully been able to run BDB XML on Windows Vista 64-bit, even AMD preferrably? If so, did you encounter similar problems?
What could be the reason for this "internal error"?
Kind regards
Jörn

Answer 1

I'm still having similar issues running DBXML 2.4.16 under Windows Vista 32 bits (Intel processor), after compiling the binaries myself.
I was using 2.3.10 until recently and everything worked fine. I decided to upgrade to be able to use XQuery Update, but I've encountered the error described in this thread, so I decided to compile it myself, following your recommendations. It worked almost fine, but I cannot connect from two different sources at the same time. For instance, if I open a connection via the Java driver (using Tomcat for instance), and then try to join the same environment using dbxml (for instance, typing dbxml in the folder that has the containers opened by Tomcat), it blocks for about 20 seconds and then says "unable to join the environment". The exact same configuration worked just fine when I had DBXML 2.3.10; using Windows XP, the precompiled binaries for 2.4.16 also work correctly, but 2.4.16 and Windows Vista don't seem to go very well together.
On a related note, I was having a very similar problem when using Tomcat and (incorrectly) loading the db.jar and dbxml.jar libraries from two different sources (instead of putting it in the Tomcat commons folder): after some seconds trying to connect, the second connection would fail with a DatabaseException (stack trace below). The problem is, under the exact same circumstances, the precompiled 2.4.16 binaries under Windows XP fail with the error 'libdb_java46.dll already loaded in another classloader' (which is covered in another thread). For that reason, I had discarded this possibility under Windows Vista. Since I couldn't find much information my exception anyway, I'm posting it here in the hopes that someone might be able to help me, or that they'll find this thread should they have the same problem.
com.sleepycat.db.DatabaseException: Resource temporarily unavailable: unable to join the environment: Resource temporarily unavailable
     at com.sleepycat.db.internal.db_javaJNI.DbEnv_open(Native Method)
     at com.sleepycat.db.internal.DbEnv.open(DbEnv.java:313)
     at com.sleepycat.db.EnvironmentConfig.openEnvironment(EnvironmentConfig.java:999)
     at com.sleepycat.db.Environment.<init>(Environment.java:29)
...