[HDFS-11568] Ozone: Create metadata path automatically after null checking

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: HDFS-7240
• Hadoop Flags: Reviewed
• Assignee: Mukul Kumar Singh
• Reporter: Yuanbo Liu
• Created: 23/Mar/17 09:34
• Updated: 26/Apr/18 21:51
• Resolved: 06/Jun/17 23:51

Description

The metadata path of ozone container should be checked properly and created accordingly while it's initiated. Some code snips that we need to change are here:
ContainerMapping.java

    // TODO: Fix this checking.
    String scmMetaDataDir = conf.get(OzoneConfigKeys
        .OZONE_CONTAINER_METADATA_DIRS);
    if ((scmMetaDataDir == null) || (scmMetaDataDir.isEmpty())) {
      throw
          new IllegalArgumentException("SCM metadata directory is not valid.");
    }

OzoneContainer.java

    List<StorageLocation> locations = new LinkedList<>();
    String[] paths = ozoneConfig.getStrings(
        OzoneConfigKeys.OZONE_CONTAINER_METADATA_DIRS);
    if (paths != null && paths.length > 0) {
      for (String p : paths) {
        locations.add(StorageLocation.parse(p));
      }
    } else {
      getDataDir(locations);
    }

Issue Links

• breaks: HDFS-11952 Ozone: Fix TestContainerSQLCli#testConvertContainerDB