[Exist-open] [ exist-Bugs-1997707 ] daily problems on exist db 1.2.3

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Bugs item #1997707, was opened at 2008-06-19 13:17
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Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Paolo Cappelletti (gempliss)
Assigned to: Nobody/Anonymous (nobody)
Summary: daily problems on exist db 1.2.3

Initial Comment:
hello,
we have continiusly problems on an exist DB (1.2.3) accessed via XML-RPC, running on Linux Mandriva 2008 (java 6.0.4), with a dom.dbx of 664MB: almost every day we have after some times of work an exception during the store of a document or an xquery operation: the exception is usually a NullPointer like this one:

2008-06-18 09:36:29,197 [http-8081-Processor22] ERROR (com.gempliss.db.ExistClient.query:506)- Error during query
org.xmldb.api.base.XMLDBException: java.lang.NullPointerException
	at org.exist.xmldb.RemoteXPathQueryService.query(RemoteXPathQueryService.java:64)
	at org.exist.xmldb.RemoteXPathQueryService.query(RemoteXPathQueryService.java:36)
	at org.exist.xmldb.RemoteXPathQueryService.execute(RemoteXPathQueryService.java:208)
.....
Caused by: org.apache.xmlrpc.XmlRpcException: java.lang.NullPointerException
	at org.apache.xmlrpc.XmlRpcClient$Worker.execute(XmlRpcClient.java:457)
	at org.apache.xmlrpc.XmlRpcClient.execute(XmlRpcClient.java:163)
	at org.exist.xmldb.RemoteXPathQueryService.query(RemoteXPathQueryService.java:53)
	... 39 more
Caused by: 
org.apache.xmlrpc.XmlRpcException: java.lang.NullPointerException
	at org.apache.xmlrpc.XmlRpcClient$Worker.execute(XmlRpcClient.java:457)
	at org.apache.xmlrpc.XmlRpcClient.execute(XmlRpcClient.java:163)
	at org.exist.xmldb.RemoteXPathQueryService.query(RemoteXPathQueryService.java:53)
	at org.exist.xmldb.RemoteXPathQueryService.query(RemoteXPathQueryService.java:36)
	at org.exist.xmldb.RemoteXPathQueryService.execute(RemoteXPathQueryService.java:208)



after that, the database starts to give errrors at ANY operation, usually an ArrayIndexOutOfBounds like this:


org.xmldb.api.base.XMLDBException: java.lang.ArrayIndexOutOfBoundsException: 4592
	at org.exist.xmldb.RemoteCollection.store(RemoteCollection.java:442)
	at org.exist.xmldb.RemoteCollection.storeResource(RemoteCollection.java:422)
	at org.exist.xmldb.RemoteCollection.storeResource(RemoteCollection.java:393)
...
Caused by: org.apache.xmlrpc.XmlRpcException: java.lang.ArrayIndexOutOfBoundsException: 4592
	at org.apache.xmlrpc.XmlRpcClient$Worker.execute(XmlRpcClient.java:457)
	at org.apache.xmlrpc.XmlRpcClient.execute(XmlRpcClient.java:163)
	at org.exist.xmldb.RemoteCollection.store(RemoteCollection.java:440)
	... 35 more
Caused by: 
org.apache.xmlrpc.XmlRpcException: java.lang.ArrayIndexOutOfBoundsException: 4592
	at org.apache.xmlrpc.XmlRpcClient$Worker.execute(XmlRpcClient.java:457)
	at org.apache.xmlrpc.XmlRpcClient.execute(XmlRpcClient.java:163)
	at org.exist.xmldb.RemoteCollection.store(RemoteCollection.java:440)
	at org.exist.xmldb.RemoteCollection.storeResource(RemoteCollection.java:422)
	at org.exist.xmldb.RemoteCollection.storeResource(RemoteCollection.java:393)



we can fix the problem by restarting the DB and performing a reindex of the colletions.

PS: we tried to perform the sanity check task and obtained in the log file hundreds of errors of this type:

ERR_DOM_INDEX:
Failed to access node 1.3.1.2.4.2 through dom.dbx index. Wrong storage address. Expected: -1; got: 520696065163285 -
Document ID: 94707
----------------------------------------------
ERR_DOM_INDEX:
Failed to access node 1.3.1.2.4.2 through dom.dbx index. Wrong storage address. Expected: -1; got: 520734719868949 -
Document ID: 94713



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