[HADOOP-17430] Restore ability to set Text to empty byte array

• Type: Wish
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 3.3.1
• Component/s: common
• Labels: pull-request-available
• Assignee: gaozhan ding
• Reporter: gaozhan ding
• Created: 11/Dec/20 10:17
• Updated: 10/Jan/21 04:00
• Resolved: 05/Jan/21 21:16

Description

In org.apache.hadoop.io.Text:clear() method, the comments show that we can free the bytes by call set(new byte[0]), but it's not going to work now. Maybe we can follow this comments.

 

 

// org.apache.hadoop.io.Text 

/**
 * Clear the string to empty.
 *
 * <em>Note</em>: For performance reasons, this call does not clear the
 * underlying byte array that is retrievable via {@link #getBytes()}.
 * In order to free the byte-array memory, call {@link #set(byte[])}
 * with an empty byte array (For example, <code>new byte[0]</code>).
 */
public void clear() {
  length = 0;
  textLength = -1;
}

 

 

Issue Links

• links to: GitHub Pull Request #2545