Uploaded image for project: 'Hadoop HDFS'
  1. Hadoop HDFS
  2. HDFS-3507

DFS#isInSafeMode needs to execute only on Active NameNode

    XMLWordPrintableJSON

Details

    • Bug
    • Status: Closed
    • Critical
    • Resolution: Fixed
    • 2.0.2-alpha
    • 2.0.3-alpha
    • ha
    • None

    Description

      Currently DFS#isInSafeMode is not Checking for the NN state. It can be executed on any of the NNs.

      But HBase will use this API to check for the NN safemode before starting up its service.

      If first NN configured is in standby then DFS#isInSafeMode will check standby NNs safemode but hbase want state of Active NN.

      Attachments

        1. HDFS-3507.patch
          26 kB
          Vinayakumar B
        2. HDFS-3507.patch
          26 kB
          Vinayakumar B
        3. HDFS-3507.patch
          28 kB
          Vinayakumar B
        4. HDFS-3507.patch
          28 kB
          Vinayakumar B

        Issue Links

          relates to

          Bug - A problem which impairs or prevents the functions of the product. HDFS-5147 Certain dfsadmin commands such as safemode do not interact with the active namenode in ha setup

          • Major - Major loss of function.
          • Open

          Bug - A problem which impairs or prevents the functions of the product. HBASE-7715 FSUtils#waitOnSafeMode can incorrectly loop on standby NN

          • Major - Major loss of function.
          • Closed

          Activity

            People

              vinayakumarb Vinayakumar B
              vinayakumarb Vinayakumar B
              Votes:
              0 Vote for this issue
              Watchers:
              11 Start watching this issue

              Dates

                Created:
                Updated:
                Resolved: