[HBASE-4112] Creating table may throw NullPointerException

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.90.3
• Fix Version/s: 0.90.4
• Component/s: master
• Assignee: gaojinchao
• Reporter: gaojinchao
• Due: 18/Jul/11
• Created: 18/Jul/11 02:51
• Updated: 20/Nov/15 11:55
• Resolved: 20/Jul/11 02:15

Description

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:1
> 19)
> at
> org.apache.hadoop.hbase.client.HBaseAdmin$1.processRow(HBaseAdmin.java
> :306)
> at
> org.apache.hadoop.hbase.client.MetaScanner.metaScan(MetaScanner.java:1
> 90)
> at
> org.apache.hadoop.hbase.client.MetaScanner.metaScan(MetaScanner.java:9
> 5)
> at
> org.apache.hadoop.hbase.client.MetaScanner.metaScan(MetaScanner.java:7
> 3)
> at
> org.apache.hadoop.hbase.client.HBaseAdmin.createTable(HBaseAdmin.java:
> 325)
> at createTable.main(createTable.java:96)
>