Re: recovering potentially corrupt data

Hi Todd,

So the original db was running off an application that was a wrapper 
around xindice, which is why i didnt want to send details.
I have since copied the db over to another machine where I'm running the 
xindice 1.1b4.

I tried what you recommended on a subset of the db (i.e. db/jobs).
Here is the error i get

$ xindice.sh export -v -c  xmldb:xindice://localhost:8080/db/jobs -n 
test -f test
trying to register database

Creating directory test/jobs
Extracting 0 files from xmldb:xindice://localhost:8080/db/jobs
Creating directory test/jobs/globalJobs1
XMLDB Exception 0: Failed to execute command 'ListDocuments' on server: 
http://localhost:8080/xindice/,message: java.lang.Exception: 
java.lang.NullPointerException
org.xmldb.api.base.XMLDBException: Failed to execute command 
'ListDocuments' on server: http://localhost:8080/xindice/, message: 
java.lang.Exception: java.lang.NullPointerException
        at 
org.apache.xindice.client.xmldb.xmlrpc.CollectionImpl.runRemoteCommand(CollectionImpl.java:124)
        at 
org.apache.xindice.client.xmldb.xmlrpc.CollectionImpl.listResources(CollectionImpl.java:488)
        at 
org.apache.xindice.tools.command.ExportTree.process(ExportTree.java:111)
        at 
org.apache.xindice.tools.command.ExportTree.process(ExportTree.java:148)
        at 
org.apache.xindice.tools.command.ExportTree.execute(ExportTree.java:71)
        at org.apache.xindice.tools.XMLTools.execute(XMLTools.java:293)
        at org.apache.xindice.tools.XMLTools.process(XMLTools.java:171)
        at org.apache.xindice.tools.XMLTools.main(XMLTools.java:82)
Caused by: org.apache.xmlrpc.XmlRpcException: java.lang.Exception: 
java.lang.NullPointerException
        at org.apache.xmlrpc.XmlRpcClient$Worker.execute(XmlRpcClient.java)
        at org.apache.xmlrpc.XmlRpcClient.execute(XmlRpcClient.java)
        at 
org.apache.xindice.client.xmldb.xmlrpc.CollectionImpl.runRemoteCommand(CollectionImpl.java:112)
        ... 7 more
[[email protected]: java.lang.Exception: 
java.lang.NullPointerException
        at org.apache.xmlrpc.XmlRpcClient$Worker.execute(XmlRpcClient.java)
        at org.apache.xmlrpc.XmlRpcClient.execute(XmlRpcClient.java)
        at 
org.apache.xindice.client.xmldb.xmlrpc.CollectionImpl.runRemoteCommand(CollectionImpl.java:112)
        at 
org.apache.xindice.client.xmldb.xmlrpc.CollectionImpl.listResources(CollectionImpl.java:488)
        at 
org.apache.xindice.tools.command.ExportTree.process(ExportTree.java:111)
        at 
org.apache.xindice.tools.command.ExportTree.process(ExportTree.java:148)
        at 
org.apache.xindice.tools.command.ExportTree.execute(ExportTree.java:71)
        at org.apache.xindice.tools.XMLTools.execute(XMLTools.java:293)
        at org.apache.xindice.tools.XMLTools.process(XMLTools.java:171)
        at org.apache.xindice.tools.XMLTools.main(XMLTools.java:82)

thanks,

Rohit

P.S. I am able to add/remove collections from db/jobs, but not from 
db/globalJobs1

[email protected] wrote:

>You could try running  xindice command line tool like this to export the 
>data and then reload it.
>
>$XINDICE_HOME/bin/xindice export -c  xmldb:xindice://localhost:8080/db/ -n test -f test
>
>Maybe I can work with you to narrow down where this null pointer is coming 
>from. Are you using the latest release?
>
>Todd
>
>
>On Fri, 12 May 2006, Rohit Mathur wrote:
>
>  
>
>>Hi,
>>
>>Is there any utility out there that can recover the data from a collection.
>>
>>Is it at all possible to do this at all?
>>
>>One particular collection has "gone bad". The rest of the db is working 
>>great.
>>I am unable to query it or create a collection within it.
>>
>>I get a null pointer exception from the data.
>>
>>thanks
>>
>>Rohit
>>
>>java.lang.NullPointerException at 
>>org.apache.xindice.core.filer.BTree$BTreeNode.query(BTree.java:937) at 
>>org.apache.xindice.core.filer.BTree$BTreeNode.query(BTree.java:937) at 
>>org.apache.xindice.core.filer.BTree.query(BTree.java:221) at 
>>org.apache.xindice.core.filer.BTreeFiler$BTreeFilerRecordSet.(BTreeFiler.java:191) 
>>at 
>>org.apache.xindice.core.filer.BTreeFiler.getRecordSet(BTreeFiler.java:174) 
>>at 
>>org.apache.xindice.core.Collection.listDocuments(Collection.java:1007) 
>>at 
>>org.apache.xindice.server.UglyBrowser.getHierarchy(UglyBrowser.java:157) 
>>at org.apache.xindice.server.UglyBrowser.doGet(UglyBrowser.java:78) at 
>>org.apache.xindice.server.XindiceServlet.doGet(XindiceServlet.java:82) 
>>at javax.servlet.http.HttpServlet.service(HttpServlet.java:740) at 
>>javax.servlet.http.HttpServlet.service(HttpServlet.java:853) at 
>>org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247) 
>>at 
>>org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193) 
>>at 
>>org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:260) 
>>at 
>>org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643) 
>>at 
>>org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480) 
>>at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) 
>>at 
>>org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) 
>>at 
>>org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643) 
>>at 
>>org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480) 
>>at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) 
>>at 
>>org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2415) 
>>at 
>>org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180) 
>>at 
>>org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643) 
>>at 
>>org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170) 
>>at 
>>org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641) 
>>at 
>>org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172) 
>>at 
>>org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641) 
>>at 
>>org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:509) 
>>at 
>>org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641) 
>>at 
>>org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480) 
>>at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) 
>>at 
>>org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174) 
>>at 
>>org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643) 
>>at 
>>org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480) 
>>at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) 
>>at 
>>org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223) 
>>at 
>>org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:432) 
>>at 
>>org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:386) 
>>at 
>>org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:534) 
>>at 
>>org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:530) 
>>at java.lang.Thread.run(Thread.java:534)
>>
>>    
>>
>
>
>  
>