How to use

notifySSTablesChanged

method

in

org.apache.cassandra.db.lifecycle.Tracker

/**
 * point of no return: commit all changes, but leave all readers marked as compacting
 */
public Throwable doCommit(Throwable accumulate)
{
  assert staged.isEmpty() : "must be no actions introduced between prepareToCommit and a commit";
  if (logger.isTraceEnabled())
    logger.trace("Committing transaction over {} staged: {}, logged: {}", originals, staged, logged);
  // accumulate must be null if we have been used correctly, so fail immediately if it is not
  maybeFail(accumulate);
  // transaction log commit failure means we must abort; safe commit is not possible
  maybeFail(log.commit(null));
  // this is now the point of no return; we cannot safely rollback, so we ignore exceptions until we're done
  // we restore state by obsoleting our obsolete files, releasing our references to them, and updating our size
  // and notification status for the obsolete and new files
  accumulate = markObsolete(obsoletions, accumulate);
  accumulate = tracker.updateSizeTracking(logged.obsolete, logged.update, accumulate);
  accumulate = release(selfRefs(logged.obsolete), accumulate);
  accumulate = tracker.notifySSTablesChanged(originals, logged.update, log.type(), accumulate);
  return accumulate;
}

/**
 * point of no return: commit all changes, but leave all readers marked as compacting
 */
public Throwable doCommit(Throwable accumulate)
{
  assert staged.isEmpty() : "must be no actions introduced between prepareToCommit and a commit";
  if (logger.isTraceEnabled())
    logger.trace("Committing transaction over {} staged: {}, logged: {}", originals, staged, logged);
  // accumulate must be null if we have been used correctly, so fail immediately if it is not
  maybeFail(accumulate);
  // transaction log commit failure means we must abort; safe commit is not possible
  maybeFail(log.commit(null));
  // this is now the point of no return; we cannot safely rollback, so we ignore exceptions until we're done
  // we restore state by obsoleting our obsolete files, releasing our references to them, and updating our size
  // and notification status for the obsolete and new files
  accumulate = markObsolete(obsoletions, accumulate);
  accumulate = tracker.updateSizeTracking(logged.obsolete, logged.update, accumulate);
  accumulate = release(selfRefs(logged.obsolete), accumulate);
  accumulate = tracker.notifySSTablesChanged(originals, logged.update, log.type(), accumulate);
  return accumulate;
}

/**
 * point of no return: commit all changes, but leave all readers marked as compacting
 */
public Throwable doCommit(Throwable accumulate)
{
  assert staged.isEmpty() : "must be no actions introduced between prepareToCommit and a commit";
  if (logger.isTraceEnabled())
    logger.trace("Committing transaction over {} staged: {}, logged: {}", originals, staged, logged);
  // accumulate must be null if we have been used correctly, so fail immediately if it is not
  maybeFail(accumulate);
  // transaction log commit failure means we must abort; safe commit is not possible
  maybeFail(log.commit(null));
  // this is now the point of no return; we cannot safely rollback, so we ignore exceptions until we're done
  // we restore state by obsoleting our obsolete files, releasing our references to them, and updating our size
  // and notification status for the obsolete and new files
  accumulate = markObsolete(obsoletions, accumulate);
  accumulate = tracker.updateSizeTracking(logged.obsolete, logged.update, accumulate);
  accumulate = release(selfRefs(logged.obsolete), accumulate);
  accumulate = tracker.notifySSTablesChanged(originals, logged.update, log.type(), accumulate);
  return accumulate;
}

accumulate = release(selfRefs(removed), accumulate);
accumulate = notifySSTablesChanged(removed, Collections.<SSTableReader>emptySet(), txnLogs.type(), accumulate);

List<SSTableReader> invalid = Lists.newArrayList(Iterables.concat(logged.update, logged.obsolete));
accumulate = tracker.apply(updateLiveSet(logged.update, restored), accumulate);
accumulate = tracker.notifySSTablesChanged(invalid, restored, OperationType.COMPACTION, accumulate);

List<SSTableReader> invalid = Lists.newArrayList(Iterables.concat(logged.update, logged.obsolete));
accumulate = tracker.apply(updateLiveSet(logged.update, restored), accumulate);
accumulate = tracker.notifySSTablesChanged(invalid, restored, OperationType.COMPACTION, accumulate);

accumulate = release(selfRefs(removed), accumulate);
accumulate = notifySSTablesChanged(removed, Collections.<SSTableReader>emptySet(), txnLogs.type(), accumulate);

List<SSTableReader> invalid = Lists.newArrayList(Iterables.concat(logged.update, logged.obsolete));
accumulate = tracker.apply(updateLiveSet(logged.update, restored), accumulate);
accumulate = tracker.notifySSTablesChanged(invalid, restored, OperationType.COMPACTION, accumulate);

accumulate = release(selfRefs(removed), accumulate);
accumulate = notifySSTablesChanged(removed, Collections.<SSTableReader>emptySet(), txnLogs.type(), accumulate);