[HDFS-17081] EC: Add logic for striped blocks in isSufficientlyReplicated

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.4.0
• Fix Version/s: 3.4.0
• Component/s: erasure-coding
• Labels: pull-request-available
• Target Version/s: 3.4.0
• Hadoop Flags: Reviewed
• Assignee: Haiyang Hu
• Reporter: Haiyang Hu
• Created: 12/Jul/23 08:50
• Updated: 28/Jan/24 01:55
• Resolved: 14/Jul/23 06:27

Description

Append ec file check if a block is replicated to at least the minimum replication need consider ec block.

currently only the minimum replication of the replica is considered, the code is as follows:

/**
   * Check if a block is replicated to at least the minimum replication.
   */
  public boolean isSufficientlyReplicated(BlockInfo b) {
    // Compare against the lesser of the minReplication and number of live DNs.
    final int liveReplicas = countNodes(b).liveReplicas();
    if (liveReplicas >= minReplication) {
      return true;
    }
    // getNumLiveDataNodes() is very expensive and we minimize its use by
    // comparing with minReplication first.
    return liveReplicas >= getDatanodeManager().getNumLiveDataNodes();
  }

Issue Links

• links to: GitHub Pull Request #5833