public void receivedReachedGlobalBarrier(String procName) {
    Subprocedure subproc = subprocs.get(procName);
    if (subproc == null) {
      LOG.warn("Unexpected reached globa barrier message for Sub-Procedure '" + procName + "'");
      return;
    }
    if (LOG.isTraceEnabled()) {
      LOG.trace("reached global barrier message for Sub-Procedure '" + procName + "'");
    }
    subproc.receiveReachedGlobalBarrier();
  }
Notification that procedure coordinator has reached the global barrier
@param procName name of the subprocedure that should start running the in-barrier phase
hbase-server/src/main/java/org/apache/hadoop/hbase/procedure/ProcedureMember.java