public boolean isStarted(long procId) {
    Procedure<?> proc = procedures.get(procId);
    if (proc == null) {
      return completed.get(procId) != null;
    }
    return proc.wasExecuted();
  }
Return true if the procedure is started.
@param procId the ID of the procedure to check
@return true if the procedure execution is started, otherwise false.
hbase-procedure/src/main/java/org/apache/hadoop/hbase/procedure2/ProcedureExecutor.java