[HDFS-13859] Add update replicaInfo's volume in LocalReplica#updateWithReplica

• Type: Bug
• Status: Patch Available
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 3.2.0
• Component/s: datanode
• Assignee: liaoyuxiangqin
• Reporter: liaoyuxiangqin
• Created: 23/Aug/18 09:04
• Updated: 06/Sep/18 04:54

Description

    When DirectoryScanner used diff ScanInfo to check and update with memBlock, i found the LocalReplica#updateWithReplica only update the diskfile path but without replicaInfo's volume. And may be the memblock ' volume is diff with the diskfile path before directory scan, so i think need to update the volume meanwhile,so the replicaInfo's meminfo is consistent with disk storage。The relation code as follows:

public void updateWithReplica(StorageLocation replicaLocation) {
    // for local replicas, the replica location is assumed to be a file.
    File diskFile = null;
    try {
      diskFile = new File(replicaLocation.getUri());
    } catch (IllegalArgumentException e) {
      diskFile = null;
    }

    if (null == diskFile) {
      setDirInternal(null);
    } else {
      setDirInternal(diskFile.getParentFile());
    }
  }

Thanks all!