[PHOENIX-4074] Race condition in LazyValueGetter

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 4.12.0
• Labels: secondary_index
• Assignee: Samarth Jain
• Reporter: Samarth Jain
• Created: 08/Aug/17 00:01
• Updated: 11/Oct/17 22:45
• Resolved: 08/Aug/17 06:06

Description

There is a race condition between acquiring the lock and the values map being initialized here.

@Override
  public ImmutableBytesWritable getLatestValue(ColumnReference ref) throws IOException {
    // ensure we have a backing map
    if (values == null) {
      synchronized (this) {
        values = Collections.synchronizedMap(new HashMap<ColumnReference, ImmutableBytesWritable>());
      }
    }