[Exist-open] NullPointer while querying eXist with precompiled xpath queries

[Manu K. <ven...@gm...>]

Hello All,

I add a large xml document(about 200MB) to eXist and then later keep querying 
it for some specific nodes. For each node i use precompiled xpath queries to 
return specific data. 
While querying eXist over rpc , it throws a NullPointer and dies out. I cannot 
make out anything from the exist.log of whats going on.

Please let me know how i can troubleshoot this problem. Is there any other log 
i should look at to see for what specific query its failing ?

I have attached an excerpt of the exist.log.

thanks for your help,
manu


exist.log----------------------------------------------------------------------

2007-04-05 00:08:39,047 [SocketListener0-4] DEBUG (RpcConnection.java 
[compile]:287) - declaring path = /db/hoovers_company_container/factsheet.xml
2007-04-05 00:08:39,048 [SocketListener0-4] DEBUG (RpcConnection.java 
[compile]:287) - declaring id = 1.38889
2007-04-05 00:08:39,069 [SocketListener0-4] DEBUG (HTTPUtils.java 
[addLastModifiedHeader]:61) - mostRecentDocumentTime: 0
2007-04-05 00:08:39,069 [SocketListener0-4] DEBUG (HTTPUtils.java 
[addLastModifiedHeader]:61) - mostRecentDocumentTime: 0
2007-04-05 00:08:39,070 [SocketListener0-4] INFO  (RpcConnection.java 
[doQuery]:256) - query took 22ms.
2007-04-05 00:08:39,070 [SocketListener0-4] DEBUG (RpcConnection.java 
[queryP]:1484) - found 1
2007-04-05 00:08:39,073 [SocketListener0-4] DEBUG (RpcConnection.java 
[compile]:287) - declaring path = /db/hoovers_company_container/factsheet.xml
2007-04-05 00:08:39,074 [SocketListener0-4] DEBUG (RpcConnection.java 
[compile]:287) - declaring id = 1.38889
2007-04-05 00:08:39,107 [SocketListener0-4] DEBUG (HTTPUtils.java 
[addLastModifiedHeader]:61) - mostRecentDocumentTime: 0
2007-04-05 00:08:39,107 [SocketListener0-4] DEBUG (HTTPUtils.java 
[addLastModifiedHeader]:61) - mostRecentDocumentTime: 0
2007-04-05 00:08:39,107 [SocketListener0-4] INFO  (RpcConnection.java 
[doQuery]:256) - query took 33ms.
2007-04-05 00:08:39,107 [SocketListener0-4] DEBUG (RpcConnection.java 
[queryP]:1484) - found 3
2007-04-05 00:08:39,111 [SocketListener0-4] DEBUG (RpcConnection.java 
[compile]:287) - declaring path = /db/hoovers_company_container/factsheet.xml
2007-04-05 00:08:39,111 [SocketListener0-4] DEBUG (RpcConnection.java 
[compile]:287) - declaring id = 1.38889
2007-04-05 00:08:39,133 [SocketListener0-4] DEBUG (HTTPUtils.java 
[addLastModifiedHeader]:61) - mostRecentDocumentTime: 0
2007-04-05 00:08:39,133 [SocketListener0-4] DEBUG (HTTPUtils.java 
[addLastModifiedHeader]:61) - mostRecentDocumentTime: 0
2007-04-05 00:08:39,133 [SocketListener0-4] INFO  (RpcConnection.java 
[doQuery]:256) - query took 21ms.
2007-04-05 00:08:39,133 [SocketListener0-4] DEBUG (RpcConnection.java 
[queryP]:1484) - found 1
2007-04-05 00:08:39,137 [SocketListener0-4] DEBUG (RpcConnection.java 
[compile]:287) - declaring path = /db/hoovers_company_container/factsheet.xml
2007-04-05 00:08:39,138 [SocketListener0-4] DEBUG (RpcConnection.java 
[compile]:287) - declaring id = 1.38889
2007-04-05 00:08:39,159 [SocketListener0-4] DEBUG (HTTPUtils.java 
[addLastModifiedHeader]:61) - mostRecentDocumentTime: 0
2007-04-05 00:08:39,159 [SocketListener0-4] DEBUG (HTTPUtils.java 
[addLastModifiedHeader]:61) - mostRecentDocumentTime: 0
2007-04-05 00:08:39,159 [SocketListener0-4] INFO  (RpcConnection.java 
[doQuery]:256) - query took 21ms.
2007-04-05 00:08:39,159 [SocketListener0-4] DEBUG (RpcConnection.java 
[queryP]:1484) - found 1
2007-04-05 00:08:39,165 [SocketListener0-4] DEBUG (RpcServer.java 
[handleException]:599) -
java.lang.NullPointerException
2007-04-05 00:10:23,525 [Thread-1] INFO  (NativeBroker.java [sync]:2756) - 
Memory: 160832K total; 506560K max; 69917K free
2007-04-05 00:10:23,526 [Thread-1] INFO  (BTree.java [printStatistics]:2046) - 
dom.dbx INDEX Buffers occupation : 100% (64 out of 64) Cache efficiency
: 100%
2007-04-05 00:10:23,526 [Thread-1] INFO  (DOMFile.java 
[printStatistics]:1235) - dom.dbx DATA Buffers occupation : 100% (255 out of 
256) Cache efficien
cy : 91%
2007-04-05 00:10:23,526 [Thread-1] INFO  (BTree.java [printStatistics]:2046) - 
collections.dbx INDEX Buffers occupation : 2% (1 out of 64) Cache effici
ency : 100%