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Posted to hdfs-dev@hadoop.apache.org by "Chris Nauroth (JIRA)" <ji...@apache.org> on 2013/05/15 23:57:15 UTC

[jira] [Created] (HDFS-4826) TestNestedSnapshots times out due to repeated slow edit log flushes when running on virtualized disk

Chris Nauroth created HDFS-4826:
-----------------------------------

             Summary: TestNestedSnapshots times out due to repeated slow edit log flushes when running on virtualized disk
                 Key: HDFS-4826
                 URL: https://issues.apache.org/jira/browse/HDFS-4826
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: namenode, test
    Affects Versions: 3.0.0, 2.0.5-beta
            Reporter: Chris Nauroth
            Assignee: Chris Nauroth


As discussed on HDFS-2802, this test cannot complete in a reasonable time when running on slow virtualized disk.  It creates 2^16 snapshots and numerous files, and the repeated edit log flushes are a performance problem.

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