Tsz Wo Nicholas Sze created HDFS-8384:
-----------------------------------------
Summary: Allow NN to startup if there are files having a lease but
are not under construction
Key: HDFS-8384
URL: https://issues.apache.org/jira/browse/HDFS-8384
Project: Hadoop HDFS
Issue Type: Improvement
Components: namenode
Reporter: Tsz Wo Nicholas Sze
Assignee: Tsz Wo Nicholas Sze
Priority: Minor
When there are files having a lease but are not under construction, NN will
fail to start up with
{code}
15/05/12 00:36:31 ERROR namenode.FSImage: Unable to save image for
/hadoop/hdfs/namenode
java.lang.IllegalStateException
at
com.google.common.base.Preconditions.checkState(Preconditions.java:129)
at
org.apache.hadoop.hdfs.server.namenode.LeaseManager.getINodesUnderConstruction(LeaseManager.java:412)
at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getFilesUnderConstruction(FSNamesystem.java:7124)
...
{code}
The actually problem is that the image could be corrupted by bugs like
HDFS-7587. We should have an option/conf to allow NN to start up so that the
problematic files could possibly be deleted.
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