Dear Hadoopers, I am trying to setup a hdfs(0.21.0) with RAID in my cluster. But I receive the following error message in my raid log again and again. It seems that the error is related to the wrong setting of "destPath"(PolicyInfo.java:198). But I don't know how to make it correct (I have tried to add an additional property call destPath in raid.xml, but it doesn't work). Does anyone have a idea about this?
2011-10-17 09:24:11,814 ERROR org.apache.hadoop.raid.RaidNode: java.lang. NullPointerException at org.apache.hadoop.io.Text.encode(Text.java:396) at org.apache.hadoop.io.Text.encode(Text.java:377) at org.apache.hadoop.io.Text.writeString(Text.java:417) at org.apache.hadoop.raid.protocol.PolicyInfo.write(PolicyInfo.java:198) at org.apache.hadoop.io.serializer.WritableSerialization$WritableSerializer.serialize(WritableSerialization.java:100) at org.apache.hadoop.io.serializer.WritableSerialization$WritableSerializer.serialize(WritableSerialization.java:84) at org.apache.hadoop.io.SequenceFile$Writer.append(SequenceFile.java:1019) at org.apache.hadoop.io.SequenceFile$Writer.append(SequenceFile.java:990) at org.apache.hadoop.raid.DistRaid.setup(DistRaid.java:328) at org.apache.hadoop.raid.DistRaid.doDistRaid(DistRaid.java:281) at org.apache.hadoop.raid.RaidNode$TriggerMonitor.doProcess(RaidNode.java: 432) at org.apache.hadoop.raid.RaidNode$TriggerMonitor.run(RaidNode.java:314) at java.lang.Thread.run(Thread.java:662) Thanks in advanced. -- Regards, LIN, Jian
