Jing Zhao created HDFS-8559:
-------------------------------

             Summary: Erasure Coding: fix non-protobuf fsimage for striped 
blocks
                 Key: HDFS-8559
                 URL: https://issues.apache.org/jira/browse/HDFS-8559
             Project: Hadoop HDFS
          Issue Type: Sub-task
            Reporter: Jing Zhao
            Assignee: Jing Zhao
            Priority: Minor


For a legacy fsimage we currently always record its layoutversion as -51 so 
that we can make sure it cannot be processed by a protobuf-based image parser. 
Thus the following code in the parser always returns false and the parse will 
fail.
{code}
NameNodeLayoutVersion.supports(
            NameNodeLayoutVersion.Feature.ERASURE_CODING, imgVersion)
{code}



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