How to use

errorPath

method

in

org.apache.storm.cluster.ClusterUtils

public static String lastErrorPath(String stormId, String componentId) {
  return errorPath(stormId, componentId) + "-last-error";
}

@Override
public List<ErrorInfo> errors(String stormId, String componentId) {
  List<ErrorInfo> errorInfos = new ArrayList<>();
  String path = ClusterUtils.errorPath(stormId, componentId);
  if (stateStorage.node_exists(path, false)) {
    List<String> childrens = stateStorage.get_children(path, false);
    for (String child : childrens) {
      String childPath = path + ClusterUtils.ZK_SEPERATOR + child;
      ErrorInfo errorInfo = ClusterUtils.maybeDeserialize(stateStorage.get_data(childPath, false), ErrorInfo.class);
      if (errorInfo != null) {
        errorInfos.add(errorInfo);
      }
    }
  }
  Collections.sort(errorInfos, new Comparator<ErrorInfo>() {
    public int compare(ErrorInfo arg0, ErrorInfo arg1) {
      return Integer.compare(arg1.get_error_time_secs(), arg0.get_error_time_secs());
    }
  });
  return errorInfos;
}

@Override
public void reportError(String stormId, String componentId, String node, Long port, Throwable error) {
  String path = ClusterUtils.errorPath(stormId, componentId);
  String lastErrorPath = ClusterUtils.lastErrorPath(stormId, componentId);
  ErrorInfo errorInfo = new ErrorInfo(ClusterUtils.stringifyError(error), Time.currentTimeSecs());

public static String lastErrorPath(String stormId, String componentId) {
  return errorPath(stormId, componentId) + "-last-error";
}

@Override
public List<ErrorInfo> errors(String stormId, String componentId) {
  List<ErrorInfo> errorInfos = new ArrayList<>();
  String path = ClusterUtils.errorPath(stormId, componentId);
  if (stateStorage.node_exists(path, false)) {
    List<String> childrens = stateStorage.get_children(path, false);
    for (String child : childrens) {
      String childPath = path + ClusterUtils.ZK_SEPERATOR + child;
      ErrorInfo errorInfo = ClusterUtils.maybeDeserialize(stateStorage.get_data(childPath, false), ErrorInfo.class);
      if (errorInfo != null)
        errorInfos.add(errorInfo);
    }
  }
  Collections.sort(errorInfos, new Comparator<ErrorInfo>() {
    public int compare(ErrorInfo arg0, ErrorInfo arg1) {
      return Integer.compare(arg1.get_error_time_secs(), arg0.get_error_time_secs());
    }
  });
  return errorInfos;
}

@Override
public void reportError(String stormId, String componentId, String node, Long port, Throwable error) {
  String path = ClusterUtils.errorPath(stormId, componentId);
  String lastErrorPath = ClusterUtils.lastErrorPath(stormId, componentId);
  ErrorInfo errorInfo = new ErrorInfo(ClusterUtils.stringifyError(error), Time.currentTimeSecs());