[SENTRY-1312] HDFS_PERMISSION_DEFAULT does not parse correctly

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.8.0
• Fix Version/s: 1.8.0
• Component/s: Hdfs Plugin
• Assignee: Zephyr Guo
• Reporter: Zephyr Guo
• Created: 03/Jun/16 03:20
• Updated: 19/Oct/16 09:28
• Resolved: 19/Oct/16 09:26

Description

HDFS_PERMISSION_DEFAULT set to 771, but it is 1403(r------wt) in fact.

permission = FsPermission.createImmutable(
          (short) newConf.getLong(SentryAuthorizationConstants.HDFS_PERMISSION_KEY,
              SentryAuthorizationConstants.HDFS_PERMISSION_DEFAULT)

FsPermission.createImmutable parse short by bit.

  public void fromShort(short n) {
    FsAction[] v = FSACTION_VALUES;
    set(v[(n >>> 6) & 7], v[(n >>> 3) & 7], v[n & 7], (((n >>> 9) & 1) == 1) );
  }
  // 771 => 0011 0000 0011 => 001 100 000 011 => 1403 

Issue Links

• relates to: SENTRY-1404 Use the new INodeAttributesProvider API in sentry-hdfs