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From "Andy Isaacson (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-3687) BlockPoolSliceScanner reportBadBlocks fails with Operation category WRITE is not supported in state standby
Date Thu, 19 Jul 2012 19:59:42 GMT
Andy Isaacson created HDFS-3687:
-----------------------------------

             Summary: BlockPoolSliceScanner reportBadBlocks fails with Operation category
WRITE is not supported in state standby
                 Key: HDFS-3687
                 URL: https://issues.apache.org/jira/browse/HDFS-3687
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: data-node
    Affects Versions: 2.0.0-alpha
            Reporter: Andy Isaacson


Rebooting a DN with a corrupt block results in the blockscanner getting an exception while
scanning:
{code}
2012-07-19 11:52:09,915 INFO org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner:
Reporting bad block BP-1507505631-172.29.97.196-1337120439433:blk_137178859864142853_112083120
2012-07-19 11:52:09,927 WARN org.apache.hadoop.hdfs.server.datanode.DataNode: Failed to report
bad block BP-1507505631-172.29.97.196-1337120439433:blk_137178859864142853_112083120 to namenode
:  Exception
org.apache.hadoop.ipc.StandbyException: Operation category WRITE is not supported in state
standby
        at org.apache.hadoop.hdfs.server.namenode.ha.StandbyState.checkOperation(StandbyState.java:87)
        at org.apache.hadoop.hdfs.server.namenode.NameNode$NameNodeHAContext.checkOperation(NameNode.java:1375)
{code}

In this case the block got deleted anyways possibly due to being reported to the NN by a client,
but this might not happen if the file was not recently read.

I'll attach a larger chunk of the DN and NN logs.

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