4 Replies Latest reply on Jul 6, 2011 8:17 AM by shawkins

Wrong type of data found or no data found; expecting streamable object from the buffer manager

rakeshsagar Jul 5, 2011 1:24 PM

Hi all,

I ususally get this error message when I try to retrieve the data from Teiid.

Sometimes this error will not come and everything seems to be working fine.

Can any one tell me the reason for this error?

Is this a bug in teiid or do I need to change something in my code.

I am using Teiid 7.3.

The following is the stack trace:

[12:09:47.387][info][talledLocalContainer] 05 Jul 2011 12:09:47,386 CDT WARN [PROCESSOR] An error occurred during streaming of Lob Chunks to Client.

[12:09:47.387][info][talledLocalContainer] [TeiidComponentException]Wrong type of data found or no data found; expecting streamable object from the buffer manager.

[12:09:47.387][info][talledLocalContainer] at org.teiid.common.buffer.LobManager.getLobReference(LobManager.java:79)

[12:09:47.387][info][talledLocalContainer] at org.teiid.common.buffer.TupleBuffer.getLobReference(TupleBuffer.java:276)

[12:09:47.387][info][talledLocalContainer] at org.teiid.dqp.internal.process.LobWorkItem.createLobStream(LobWorkItem.java:119)

[12:09:47.387][info][talledLocalContainer] at org.teiid.dqp.internal.process.LobWorkItem.run(LobWorkItem.java:71)

[12:09:47.387][info][talledLocalContainer] at org.teiid.dqp.internal.process.DQPWorkContext.runInContext(DQPWorkContext.java:188)

[12:09:47.387][info][talledLocalContainer] at org.teiid.dqp.internal.process.ThreadReuseExecutor$RunnableWrapper.run(ThreadReuseExecutor.java:116)

[12:09:47.387][info][talledLocalContainer] at org.teiid.dqp.internal.process.ThreadReuseExecutor$3.run(ThreadReuseExecutor.java:290)

[12:09:47.387][info][talledLocalContainer] at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)

[12:09:47.387][info][talledLocalContainer] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)

[12:09:47.387][info][talledLocalContainer] at java.lang.Thread.run(Thread.java:662)

[12:09:47.387][info][talledLocalContainer] 05 Jul 2011 12:09:47,387 CDT ERROR [PROCESSOR] Unexpected exception for session tdjRvVVL6wzk

[12:09:47.387][info][talledLocalContainer] [TeiidComponentException]Wrong type of data found or no data found; expecting streamable object from the buffer manager.

[12:09:47.387][info][talledLocalContainer] at org.teiid.common.buffer.LobManager.getLobReference(LobManager.java:79)

[12:09:47.387][info][talledLocalContainer] at org.teiid.common.buffer.TupleBuffer.getLobReference(TupleBuffer.java:276)

[12:09:47.387][info][talledLocalContainer] at org.teiid.dqp.internal.process.LobWorkItem.createLobStream(LobWorkItem.java:119)

[12:09:47.387][info][talledLocalContainer] at org.teiid.dqp.internal.process.LobWorkItem.run(LobWorkItem.java:71)

[12:09:47.387][info][talledLocalContainer] at org.teiid.dqp.internal.process.DQPWorkContext.runInContext(DQPWorkContext.java:188)

[12:09:47.387][info][talledLocalContainer] at org.teiid.dqp.internal.process.ThreadReuseExecutor$RunnableWrapper.run(ThreadReuseExecutor.java:116)

[12:09:47.395][info][talledLocalContainer] at org.teiid.dqp.internal.process.ThreadReuseExecutor$3.run(ThreadReuseExecutor.java:290)

[12:09:47.395][info][talledLocalContainer] at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)

[12:09:47.395][info][talledLocalContainer] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)

[12:09:47.395][info][talledLocalContainer] at java.lang.Thread.run(Thread.java:662)

[12:09:47.396][info][talledLocalContainer] 05 Jul 2011 12:09:47,395 CDT WARN [TransactionManager] Exception occurred within transaction java.lang.reflect.InvocationTargetException

[12:09:47.396][info][talledLocalContainer] java.lang.reflect.InvocationTargetException

[12:09:47.396][info][talledLocalContainer] at sun.reflect.GeneratedMethodAccessor594.invoke(Unknown Source)

[12:09:47.396][info][talledLocalContainer] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

[12:09:47.396][info][talledLocalContainer] at java.lang.reflect.Method.invoke(Method.java:597)

[12:09:47.396][info][talledLocalContainer] at com.ca.chorus.server.transaction.TransactionInvocationHandler$1.call(TransactionInvocationHandler.java:39)

[12:09:47.396][info][talledLocalContainer] at com.ca.chorus.server.transaction.TransactionRunner.invoke(TransactionRunner.java:19)

[12:09:47.396][info][talledLocalContainer] at com.ca.chorus.server.transaction.TransactionalMethodInterceptor.invoke(TransactionalMethodInterceptor.java:23)

[12:09:47.396][info][talledLocalContainer] at com.ca.chorus.server.transaction.TransactionInvocationHandler.invoke(TransactionInvocationHandler.java:33)

[12:09:47.396][info][talledLocalContainer] at $Proxy279.getSessionData(Unknown Source)

Caused by: java.lang.Exception: Exception java.io.IOException: Unable to read data from the stream: [TeiidComponentException]Wrong type of data found or no data found; expecting streamable object from the buffer manager. occurred on statement SELECT data FROM session WHERE session_key=? AND namespace=? AND key=?

[12:09:47.398][info][talledLocalContainer] ... 24 more

[12:09:47.398][info][talledLocalContainer] Caused by: java.io.IOException: Unable to read data from the stream: [TeiidComponentException]Wrong type of data found or no data found; expecting streamable object from the buffer manager.

[12:09:47.398][info][talledLocalContainer] at org.teiid.client.lob.StreamingLobChunckProducer.getNextChunk(StreamingLobChunckProducer.java:74)

[12:09:47.398][info][talledLocalContainer] at org.teiid.client.lob.LobChunkInputStream.read(LobChunkInputStream.java:58)

[12:09:47.398][info][talledLocalContainer] at java.io.InputStream.read(InputStream.java:154)

[12:09:47.398][info][talledLocalContainer] at java.nio.channels.Channels$ReadableByteChannelImpl.read(Channels.java:221)

[12:09:47.398][info][talledLocalContainer] at org.teiid.core.util.InputStreamReader.read(InputStreamReader.java:77)

[12:09:47.398][info][talledLocalContainer] at java.io.Reader.read(Reader.java:83)

[12:09:47.398][info][talledLocalContainer] at com.google.common.io.CharStreams.copy(CharStreams.java:202)

[12:09:47.398][info][talledLocalContainer] at com.google.common.io.CharStreams.toStringBuilder(CharStreams.java:248)

[12:09:47.398][info][talledLocalContainer] at com.google.common.io.CharStreams.toString(CharStreams.java:222)

[12:09:47.398][info][talledLocalContainer] ... 28 more

[12:09:47.398][info][talledLocalContainer] Caused by: java.util.concurrent.ExecutionException: [TeiidComponentException]Wrong type of data found or no data found; expecting streamable object from the buffer manager.

[12:09:47.398][info][talledLocalContainer] at org.teiid.net.socket.SocketServerInstanceImpl$RemoteInvocationHandler$1.convertResult(SocketServerInstanceImpl.java:319)

[12:09:47.398][info][talledLocalContainer] at org.teiid.client.util.ResultsFuture.get(ResultsFuture.java:116)

[12:09:47.398][info][talledLocalContainer] at org.teiid.net.socket.SocketServerInstanceImpl$RemoteInvocationHandler$1.get(SocketServerInstanceImpl.java:348)

[12:09:47.398][info][talledLocalContainer] at org.teiid.net.socket.SocketServerInstanceImpl$RemoteInvocationHandler$1.get(SocketServerInstanceImpl.java:333)

[12:09:47.398][info][talledLocalContainer] at org.teiid.client.lob.StreamingLobChunckProducer.getNextChunk(StreamingLobChunckProducer.java:72)

[12:09:47.410][info][talledLocalContainer] ... 39 more

[12:09:47.410][info][talledLocalContainer] Caused by: [TeiidComponentException]Wrong type of data found or no data found; expecting streamable object from the buffer manager.

[12:09:47.410][info][talledLocalContainer] at org.teiid.common.buffer.LobManager.getLobReference(LobManager.java:79)

[12:09:47.410][info][talledLocalContainer] at org.teiid.common.buffer.TupleBuffer.getLobReference(TupleBuffer.java:276)

[12:09:47.410][info][talledLocalContainer] at org.teiid.dqp.internal.process.LobWorkItem.createLobStream(LobWorkItem.java:119)

[12:09:47.410][info][talledLocalContainer] at org.teiid.dqp.internal.process.LobWorkItem.run(LobWorkItem.java:71)

[12:09:47.410][info][talledLocalContainer] ... 6 more

1. Re: Wrong type of data found or no data found; expecting streamable object from the buffer manager

tejones Jul 5, 2011 1:35 PM (in response to rakeshsagar)

Hi Rakesh,

A fix for this issue was addressed by https://issues.jboss.org/browse/TEIID-1647 and applied to 7.4.1. Just curious, what environment/client are you using to produce this error? Is it a generated web service?

Thanks,
Ted
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2. Re: Wrong type of data found or no data found; expecting streamable object from the buffer manager

rakeshsagar Jul 5, 2011 1:49 PM (in response to tejones)

I am using normal JDBC calls to fetch data from Teiid.

When I run the same SQL from Teiid Designer it works fine.
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3. Re: Wrong type of data found or no data found; expecting streamable object from the buffer manager

rareddy Jul 5, 2011 1:56 PM (in response to rakeshsagar)

This could also happen when you are using Local Connections using Clob/Blob/SQLXML. Take a look at the latest beta on 7.5 Teiid for the fix.

Ramesh..
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4. Re: Wrong type of data found or no data found; expecting streamable object from the buffer manager

shawkins Jul 6, 2011 8:17 AM (in response to rareddy)

If you are using 7.4 or later this error should not happen with local connections - only socket connections. On 7.3 and prior there was an issue that with the client ResultSetImpl that was inappropriately forcing streaming even for local connections - that was a addressed by https://issues.jboss.org/browse/TEIID-1512.

Steve
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