Hi,

yes, it is in one row. Each row represents a patient that has values of 20.000 
different genes stored in one column family and one value of health status in a 
second column family.


> Am 18.07.2015 um 15:38 schrieb Stephan Ewen <se...@apache.org>:
> 
> This error is in the HBase RPC Service. Apparently the RPC message is very 
> large.
> 
> Is the data that you request in one row?
> 
> Am 18.07.2015 00:50 schrieb "Lydia Ickler" <ickle...@googlemail.com 
> <mailto:ickle...@googlemail.com>>:
> Hi all,
> 
> I am trying to read a data set from HBase within a cluster application. 
> The data is about 90MB big.
> 
> When I run the program on a cluster consisting of 4 machines (8GB RAM) I get 
> the following error on the head-node:
> 
> 16:57:41,572 INFO  org.apache.flink.api.common.io.LocatableInputSplitAssigner 
>    - Assigning remote split to host grips5
> 17:17:26,127 INFO  org.apache.flink.runtime.executiongraph.ExecutionGraph     
>    - DataSource (at createInput(ExecutionEnvironment.java:502) 
> (org.apache.flink.addons.hbase.HBaseR$
> 17:17:26,128 INFO  org.apache.flink.runtime.jobmanager.JobManager             
>    - Status of job b768ff76167fa3ea3e4cb3cc3481ba80 (Labeled - ML) changed to 
> FAILING.
> 
> And within the machine grips5:
> 16:57:23,769 INFO  org.apache.flink.addons.hbase.TableInputFormat             
>    - opening split [1|[grips1:16020]|LUAD+5781|LUAD+7539]
> 16:57:33,734 WARN  org.apache.hadoop.ipc.RpcClient                            
>    - IPC Client (767445418) connection to grips1/130.73.20.14:16020 
> <http://130.73.20.14:16020/> from hduser: unexpected exceptio$
> java.lang.OutOfMemoryError: Java heap space
>         at 
> org.apache.hadoop.hbase.ipc.RpcClient$Connection.readResponse(RpcClient.java:1117)
>         at 
> org.apache.hadoop.hbase.ipc.RpcClient$Connection.run(RpcClient.java:727)
> 16:57:39,969 WARN  org.apache.hadoop.ipc.RpcClient                            
>    - IPC Client (767445418) connection to grips1/130.73.20.14:16020 
> <http://130.73.20.14:16020/> from hduser: unexpected exceptio$
> java.lang.OutOfMemoryError: Java heap space
> 
> and then it just closes the zookeeper…
> 
> Do you have a suggestion how to avoid this OutOfMemoryError?
> Best regards,
> Lydia
> 
> 
> 

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