[HBASE-17613] avoid copy of family when initializing the FSWALEntry

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 2.0.0
• Hadoop Flags: Reviewed
• Assignee: Chia-Ping Tsai
• Reporter: Chia-Ping Tsai
• Created: 08/Feb/17 12:25
• Updated: 09/Feb/17 19:36
• Resolved: 09/Feb/17 16:19

Description

We should compare the families before cloning it.

Set<byte[]> familySet = Sets.newTreeSet(Bytes.BYTES_COMPARATOR);
for (Cell cell : cells) {
  if (!CellUtil.matchingFamily(cell, WALEdit.METAFAMILY)) {
  // TODO: Avoid this clone?
    familySet.add(CellUtil.cloneFamily(cell));
  }
}