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  1. Hadoop HDFS
  2. HDFS-2983

Relax the build version check to permit rolling upgrades within a release

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Details

    • Improvement
    • Status: Closed
    • Major
    • Resolution: Fixed
    • 2.0.0-alpha
    • 2.0.0-alpha
    • None
    • None

    Description

      Currently the version check for DN/NN communication is strict (it checks the exact svn revision or git hash, Storage#getBuildVersion calls VersionInfo#getRevision), which prevents rolling upgrades across any releases. Once we have the PB-base RPC in place (coming soon to branch-23) we'll have the necessary pieces in place to loosen this restriction, though perhaps it takes another 23 minor release or so before we're ready to commit to making the minor versions compatible.

      Attachments

        1. HDFS-2983.patch
          6 kB
          Aaron Myers
        2. HDFS-2983.patch
          40 kB
          Aaron Myers
        3. HDFS-2983.patch
          41 kB
          Aaron Myers
        4. HDFS-2983.patch
          43 kB
          Aaron Myers
        5. HDFS-2983.patch
          43 kB
          Aaron Myers
        6. HDFS-2983.patch
          44 kB
          Aaron Myers
        7. HDFS-2983.patch
          44 kB
          Aaron Myers
        8. HDFS-2983.patch
          45 kB
          Aaron Myers

        Issue Links

          breaks

          Bug - A problem which impairs or prevents the functions of the product. HDFS-3260 TestDatanodeRegistration should set minimum DN version in addition to minimum NN version

          • Major - Major loss of function.
          • Closed
          is blocked by

          Bug - A problem which impairs or prevents the functions of the product. HDFS-3202 NamespaceInfo PB translation drops build version

          • Major - Major loss of function.
          • Closed
          is related to

          Improvement - An improvement or enhancement to an existing feature or task. MAPREDUCE-4150 Versioning and rolling upgrades for MR2

          • Major - Major loss of function.
          • Open

          Improvement - An improvement or enhancement to an existing feature or task. HADOOP-8968 Add a flag to completely disable the worker version check

          • Major - Major loss of function.
          • Closed
          relates to

          New Feature - A new feature of the product, which has yet to be developed. HADOOP-702 DFS Upgrade Proposal

          • Major - Major loss of function.
          • Closed

          Improvement - An improvement or enhancement to an existing feature or task. HADOOP-8209 Add option to relax build-version check for branch-1

          • Major - Major loss of function.
          • Closed

          Improvement - An improvement or enhancement to an existing feature or task. HDFS-3245 Add metrics and web UI for cluster version summary

          • Major - Major loss of function.
          • Closed

          Activity

            People

              atm Aaron Myers
              eli2 Eli Collins
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              Dates

                Created:
                Updated:
                Resolved: