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Posted to hdfs-dev@hadoop.apache.org by "Andrew Wang (JIRA)" <ji...@apache.org> on 2014/01/29 00:51:06 UTC

[jira] [Created] (HDFS-5845) SecondaryNameNode dies when checkpointing with cache pools

Andrew Wang created HDFS-5845:
---------------------------------

             Summary: SecondaryNameNode dies when checkpointing with cache pools
                 Key: HDFS-5845
                 URL: https://issues.apache.org/jira/browse/HDFS-5845
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: namenode
    Affects Versions: 2.3.0
            Reporter: Andrew Wang
            Assignee: Andrew Wang


The SecondaryNameNode clears and reloads its FSNamesystem when doing checkpointing. However, FSNamesystem#clear does not clear CacheManager state during this reload. This leads to an error like the following:

{noformat}
org.apache.hadoop.fs.InvalidRequestException: Cache pool pool1 already exists.
{noformat}



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