@Deprecated
  private boolean canNotUseTabletAnymoreDeprecated(final PipeRealtimeEvent event) {
    // In the following 5 cases, we should not extract any more tablet events. all the data
    // represented by the tablet events should be carried by the following tsfile event:
    //  0. If the pipe task is currently restarted.
    //  1. The number of pinned memTables has reached the dangerous threshold.
    //  2. The number of historical tsFile events to transfer has exceeded the limit.
    //  3. The number of realtime tsfile events to transfer has exceeded the limit.
    //  4. The number of linked tsFiles has reached the dangerous threshold.
    return isPipeTaskCurrentlyRestarted(event)
        || mayMemTablePinnedCountReachDangerousThreshold(event)
        || isHistoricalTsFileEventCountExceededLimit(event)
        || isRealtimeTsFileEventCountExceededLimit(event)
        || mayTsFileLinkedCountReachDangerousThreshold(event);
  }
These judgements are deprecated, and are only reserved for manual operation and compatibility.
iotdb-core/datanode/src/main/java/org/apache/iotdb/db/pipe/extractor/dataregion/realtime/PipeRealtimeDataRegionHybridExtractor.java