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  1. Hadoop HDFS
  2. HDFS-7541

Upgrade Domains in HDFS

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Details

    • Improvement
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • None
    • 2.9.0, 3.0.0-alpha1, 2.8.2
    • None
    • None

    Description

      Current HDFS DN rolling upgrade step requires sequential DN restart to minimize the impact on data availability and read/write operations. The side effect is longer upgrade duration for large clusters. This might be acceptable for DN JVM quick restart to update hadoop code/configuration. However, for OS upgrade that requires machine reboot, the overall upgrade duration will be too long if we continue to do sequential DN rolling restart.

      Attachments

        1. UpgradeDomains_Design_v3.pdf
          242 kB
          Ming Ma
        2. HDFS-7541-2.patch
          89 kB
          Ming Ma
        3. HDFS-7541.patch
          67 kB
          Ming Ma
        4. UpgradeDomains_design_v2.pdf
          288 kB
          Ming Ma
        5. SupportforfastHDFSdatanoderollingupgrade.pdf
          125 kB
          Ming Ma

        Issue Links

        is related to

        Bug - A problem which impairs or prevents the functions of the product. HDFS-14637 Namenode may not replicate blocks to meet the policy after enabling upgradeDomain

        • Major - Major loss of function.
        • Resolved

        New Feature - A new feature of the product, which has yet to be developed. AMBARI-24301 API for HDFS Upgrade Domains management for scripted node additions

        • Major - Major loss of function.
        • Open

        New Feature - A new feature of the product, which has yet to be developed. HDFS-8789 Block Placement policy migrator

        • Major - Major loss of function.
        • Open

        New Feature - A new feature of the product, which has yet to be developed. HDFS-7877 [Umbrella] Support maintenance state for datanodes

        • Major - Major loss of function.
        • Resolved

        Improvement - An improvement or enhancement to an existing feature or task. HDFS-13742 HDFS Upgrade Domains dynamic placement policy using dfsadmin commands and scripting API to be automation friendly for scripted datanode additions to clusters

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

        New Feature - A new feature of the product, which has yet to be developed. YARN-8256 Pluggable provider for node membership management

        • Major - Major loss of function.
        • Open

        Improvement - An improvement or enhancement to an existing feature or task. HDFS-1431 Balancer should work with the logic of BlockPlacementPolicy

        • Major - Major loss of function.
        • Open

        Improvement - An improvement or enhancement to an existing feature or task. HDFS-3566 Custom Replication Policy for Azure

        • Major - Major loss of function.
        • Resolved

        Improvement - An improvement or enhancement to an existing feature or task. HDFS-13739 Add option to disable rack local write preference

        • Major - Major loss of function.
        • Resolved

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            mingma Ming Ma
            mingma Ming Ma
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              Updated:
              Resolved:

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