Fix NullPointerException in Secondary NameNode
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Key: HDFS-1627
URL: https://issues.apache.org/jira/browse/HDFS-1627
Project: Hadoop HDFS
Issue Type: Bug
Components: name-node
Affects Versions: 0.23.0
Reporter: Hairong Kuang
Assignee: Hairong Kuang
Fix For: 0.23.0
Secondary NameNode should not reset namespace if no new image is downloaded
from the primary NameNode.
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