[jira] Created: (HBASE-1503) hbase-1304 dropped updating list of store files on flush

[stack (JIRA)]

hbase-1304 dropped updating list of store files on flush
--------------------------------------------------------

                 Key: HBASE-1503
                 URL: https://issues.apache.org/jira/browse/HBASE-1503
             Project: Hadoop HBase
          Issue Type: Bug
            Reporter: stack
             Fix For: 0.20.0


Here is how current updateReaders is implemented in StoreScanner:

{code}
  // Implementation of ChangedReadersObserver
  public void updateReaders() throws IOException {
    if (this.closing.get()) {
      return;
    }
    this.lock.writeLock().lock();
    try {
      // Could do this pretty nicely with KeyValueHeap, but the existing
      // implementation of this method only updated if no existing storefiles?
      // Lets discuss.
      return;
    } finally {
      this.lock.writeLock().unlock();
    }
  }
{code}

Fill in missing functionality.

Count of store files changes on flush and compaction.

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