Hi I tried bin/katta search IndexName "Query"

the above one is works fine and

bin/katta search IndexName "Query" 100 which is also works fine,

I write a program ILuceneClient client = new LuceneClient(); client.count(....) //works fine

But the below one is throwing exception

Hits hits = client.search(query,new String[] { _kattaIndexName });

=============================================================开发者_Go百科===================== 11/03/22 07:43:36 WARN client.NodeInteraction:159 - Failed to interact with node hadoop5:20000. Trying with other node(s) [hadoop4:20000, hadoop1:20000] (id=6) java.lang.reflect.InvocationTargetException at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at net.sf.katta.client.NodeInteraction.run(NodeInteraction.java:135) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:619) Caused by: org.apache.hadoop.ipc.RemoteException: java.io.IOException: Multithread shard search could not be executed: at net.sf.katta.lib.lucene.LuceneServer.search(LuceneServer.java:416) at net.sf.katta.lib.lucene.LuceneServer.search(LuceneServer.java:261) at net.sf.katta.lib.lucene.LuceneServer.search(LuceneServer.java:235) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:508) at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:959) at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:955) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:396)

at org.apache.hadoop.ipc.Server$Handler.run(Server.java:953)

I met with a similar problem when using eclipse in windows as a client. I found out that I have used a different version of lucence core as that on the katta cluster's lib. It seems that Hadoop IPC is very sensitive to versioning. So you should make sure that your eclipse has used the same version of lucene core as that your katta lib contains.