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From Stack <st...@duboce.net>
Subject Re: Create table threw NullPointerException
Date Fri, 15 Jul 2011 17:28:24 GMT
I agree.  Mind making a patch Gao (Lets try and get it into 0.90.4).
Thanks,
St.Ack

On Thu, Jul 14, 2011 at 7:43 PM, Gaojinchao <gaojinchao@huawei.com> wrote:
> It happened in latest branch 0.90. but I can't reproduce it.
>
> It seems using api getHRegionInfoOrNull is better or check the input parameter before
call getHRegionInfo.
>
> Code:
>  public static Writable getWritable(final byte [] bytes, final Writable w)
>  throws IOException {
>    return getWritable(bytes, 0, bytes.length, w);
>  }
> return getWritable(bytes, 0, bytes.length, w);  // It seems input parameter bytes is
null
>
> logs:
> 11/07/15 10:15:42 INFO zookeeper.ClientCnxn: Socket connection established to C4C3.site/157.5.100.3:2181,
initiating session
> 11/07/15 10:15:42 INFO zookeeper.ClientCnxn: Session establishment complete on server
C4C3.site/157.5.100.3:2181, sessionid = 0x2312b8e3f700002, negotiated timeout = 180000
> [INFO] Create : ufdr111 222!
> [INFO] Create : ufdr111 start!
> java.lang.NullPointerException
>        at org.apache.hadoop.hbase.util.Writables.getWritable(Writables.java:75)
>        at org.apache.hadoop.hbase.util.Writables.getHRegionInfo(Writables.java:119)
>        at org.apache.hadoop.hbase.client.HBaseAdmin$1.processRow(HBaseAdmin.java:306)
>        at org.apache.hadoop.hbase.client.MetaScanner.metaScan(MetaScanner.java:190)
>        at org.apache.hadoop.hbase.client.MetaScanner.metaScan(MetaScanner.java:95)
>        at org.apache.hadoop.hbase.client.MetaScanner.metaScan(MetaScanner.java:73)
>        at org.apache.hadoop.hbase.client.HBaseAdmin.createTable(HBaseAdmin.java:325)
>        at createTable.main(createTable.java:96)
>

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