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Re: java.lang.ClassNotFoundException: com.google.protobuf.MessageMarcos Ortiz 2012-05-29, 14:42
On 05/29/2012 10:35 AM, Amit Sela wrote:
> could anyone recommend a compatible Hadoop version for HBase 0.94 ?
Look in the link that I send you before.
http://hbase.apache.org/book/book.html#hadoop
>
> Should I also upgrade zookeeper (3.3.2) ?
Yes, you should upgrade Zookeeper to 3.4.3
>
> Thanks.
>
> On Tue, May 29, 2012 at 5:10 PM, Amit Sela<[EMAIL PROTECTED]> wrote:
>
>> I'm not sure Hadoop 0.20.3 is compatible with HBase 0.94 but I can't find
>> any documentation about it
>>
>>
>> On Tue, May 29, 2012 at 4:40 PM, Marcos Ortiz<[EMAIL PROTECTED]> wrote:
>>
>>> Are you sure that 0.94 is compatible with Hadoop 0.20.3?
>>>
>>>
>>>
>>> On 05/29/2012 09:13 AM, Amit Sela wrote:
>>>
>>>> Hi all,
>>>>
>>>> I just upgraded from HBase 0.90.2 to 0.94 (running on hadoop 0.20.3).
>>>>
>>>> It seems like the cluster is up and running.
>>>>
>>>> I tried running an old MR job that writes into HBase, and after Map is
>>>> complete (map 100%) and before Reduce begins (reduce 0%) - I got the
>>>> following Exception:
>>>>
>>>> 12/05/29 12:32:02 INFO mapred.JobClient: Task Id :
>>>> attempt_201205291226_0001_r_**000000_0, Status : FAILED
>>>> Error: java.lang.**ClassNotFoundException: com.google.protobuf.Message
>>>> at java.net.URLClassLoader$1.run(**URLClassLoader.java:202)
>>>> at java.security.**AccessController.doPrivileged(**Native Method)
>>>> at java.net.URLClassLoader.**findClass(URLClassLoader.java:**190)
>>>> at java.lang.ClassLoader.**loadClass(ClassLoader.java:**306)
>>>> at sun.misc.Launcher$**AppClassLoader.loadClass(**Launcher.java:301)
>>>> at java.lang.ClassLoader.**loadClass(ClassLoader.java:**247)
>>>> at
>>>> org.apache.hadoop.hbase.io.**HbaseObjectWritable.<clinit>(**
>>>> HbaseObjectWritable.java:263)
>>>> at org.apache.hadoop.hbase.ipc.**Invocation.write(Invocation.**java:138)
>>>> at
>>>> org.apache.hadoop.hbase.ipc.**HBaseClient$Connection.**
>>>> sendParam(HBaseClient.java:**537)
>>>> at org.apache.hadoop.hbase.ipc.**HBaseClient.call(HBaseClient.**
>>>> java:898)
>>>> at
>>>> org.apache.hadoop.hbase.ipc.**WritableRpcEngine$Invoker.**
>>>> invoke(WritableRpcEngine.java:**150)
>>>> at $Proxy2.getProtocolVersion(**Unknown Source)
>>>> at
>>>> org.apache.hadoop.hbase.ipc.**WritableRpcEngine.getProxy(**
>>>> WritableRpcEngine.java:183)
>>>> at org.apache.hadoop.hbase.ipc.**HBaseRPC.getProxy(HBaseRPC.**java:303)
>>>> at org.apache.hadoop.hbase.ipc.**HBaseRPC.getProxy(HBaseRPC.**java:280)
>>>> at org.apache.hadoop.hbase.ipc.**HBaseRPC.getProxy(HBaseRPC.**java:332)
>>>> at org.apache.hadoop.hbase.ipc.**HBaseRPC.waitForProxy(**
>>>> HBaseRPC.java:236)
>>>> at
>>>> org.apache.hadoop.hbase.**client.HConnectionManager$**
>>>> HConnectionImplementation.**getHRegionConnection(**
>>>> HConnectionManager.java:1284)
>>>> at
>>>> org.apache.hadoop.hbase.**client.HConnectionManager$**
>>>> HConnectionImplementation.**getHRegionConnection(**
>>>> HConnectionManager.java:1240)
>>>> at
>>>> org.apache.hadoop.hbase.**client.HConnectionManager$**
>>>> HConnectionImplementation.**getHRegionConnection(**
>>>> HConnectionManager.java:1227)
>>>> at
>>>> org.apache.hadoop.hbase.**client.HConnectionManager$**
>>>> HConnectionImplementation.**locateRegionInMeta(**
>>>> HConnectionManager.java:936)
>>>> at
>>>> org.apache.hadoop.hbase.**client.HConnectionManager$**
>>>> HConnectionImplementation.**locateRegion(**HConnectionManager.java:832)
>>>> at
>>>> org.apache.hadoop.hbase.**client.HConnectionManager$**
>>>> HConnectionImplementation.**locateRegion(**HConnectionManager.java:801)
>>>> at
>>>> org.apache.hadoop.hbase.**client.HConnectionManager$**
>>>> HConnectionImplementation.**locateRegionInMeta(**
>>>> HConnectionManager.java:933)
>>>> at
>>>> org.apache.hadoop.hbase.**client.HConnectionManager$**
>>>> HConnectionImplementation.**locateRegion(**HConnectionManager.java:836)
>>>> at
>>>> org.apache.hadoop.hbase.**client.HConnectionManager$**
>>>> HConnectionImplementation.**locateRegion(**HConnectionManager.java:801)
>>>> at org.apache.hadoop.hbase.**client.HTable.finishSetup(**
Marcos Luis Ort�z Valmaseda
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