protected long getTimeoutTimestamp() {
    return getLastUpdate() + getTimeout();
  }
Timeout of the next timeout. Called by the ProcedureExecutor if the procedure has timeout set
and the procedure is in the waiting queue.

@return the timestamp of the next timeout.
iotdb-core/confignode/src/main/java/org/apache/iotdb/confignode/procedure/Procedure.java