Examples of org.apache.helix.HelixDataAccessor.removeProperty()

Class org.apache.helix.HelixDataAccessor

Examples of org.apache.helix.HelixDataAccessor.removeProperty()

org.apache.helix.HelixDataAccessor.removeProperty()
Removes the property @param key @return true if removal was successful or node does not exist. false if thenode existed and failed to remove it

    }


    // remove dead external-views
    for (String resourceName : curExtViews.keySet()) {
      if (!resourceMap.keySet().contains(resourceName)) {
        dataAccessor.removeProperty(keyBuilder.externalView(resourceName));
      }
    }


    long endTime = System.currentTimeMillis();
    log.info("END ExternalViewComputeStage.process(). took: " + (endTime - startTime) + " ms");

View Full Code Here

    HelixDataAccessor accessor = _manager.getHelixDataAccessor();
    List<String> existingHealthRecordNames =
        accessor.getChildNames(accessor.keyBuilder().healthReports(_manager.getInstanceName()));
    for (String healthReportName : existingHealthRecordNames) {
      LOG.info("Removing old healthrecord " + healthReportName);
      accessor.removeProperty(accessor.keyBuilder().healthReport(_manager.getInstanceName(),
          healthReportName));
    }


  }

View Full Code Here

      // nop messages are simply removed. It is used to trigger onMessage() in
      // situations such as register a new message handler factory
      if (message.getMsgType().equalsIgnoreCase(MessageType.NO_OP.toString())) {
        LOG.info("Dropping NO-OP message. mid: " + message.getId() + ", from: "
            + message.getMsgSrc());
        accessor.removeProperty(message.getKey(keyBuilder, instanceName));
        continue;
      }


      String tgtSessionId = message.getTgtSessionId();

View Full Code Here

        String warningMessage =
            "SessionId does NOT match. expected sessionId: " + sessionId
                + ", tgtSessionId in message: " + tgtSessionId + ", messageId: "
                + message.getMsgId();
        LOG.warn(warningMessage);
        accessor.removeProperty(message.getKey(keyBuilder, instanceName));
        _statusUpdateUtil.logWarning(message, HelixStateMachineEngine.class, warningMessage,
            accessor);
        continue;
      }

View Full Code Here

            "Failed to create message handler for " + message.getMsgId() + ", exception: " + e;


        _statusUpdateUtil.logError(message, HelixStateMachineEngine.class, e, error, accessor);


        message.setMsgState(MessageState.UNPROCESSABLE);
        accessor.removeProperty(message.getKey(keyBuilder, instanceName));
        LOG.error("Message cannot be processed: " + message.getRecord(), e);


        continue;
      }

View Full Code Here

    HelixDataAccessor accessor =
        new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor<ZNRecord>(_zkClient));
    Builder keyBuilder = accessor.keyBuilder();


    if (enabled) {
      accessor.removeProperty(keyBuilder.pause());
    } else {
      accessor.createProperty(keyBuilder.pause(), new PauseSignal("pause"));
    }
  }

View Full Code Here

    HelixDataAccessor accessor =
        new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor<ZNRecord>(_zkClient));
    Builder keyBuilder = accessor.keyBuilder();


    if (enabled) {
      accessor.removeProperty(keyBuilder.pause());
    } else {
      accessor.createProperty(keyBuilder.pause(), new PauseSignal("pause"));
    }
  }

View Full Code Here

  public void dropResource(String clusterName, String resourceName) {
    HelixDataAccessor accessor =
        new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor<ZNRecord>(_zkClient));
    Builder keyBuilder = accessor.keyBuilder();


    accessor.removeProperty(keyBuilder.idealStates(resourceName));
    accessor.removeProperty(keyBuilder.resourceConfig(resourceName));
  }


  @Override
  public List<String> getStateModelDefs(String clusterName) {

View Full Code Here

    HelixDataAccessor accessor =
        new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor<ZNRecord>(_zkClient));
    Builder keyBuilder = accessor.keyBuilder();


    accessor.removeProperty(keyBuilder.idealStates(resourceName));
    accessor.removeProperty(keyBuilder.resourceConfig(resourceName));
  }


  @Override
  public List<String> getStateModelDefs(String clusterName) {
    return _zkClient.getChildren(HelixUtil.getStateModelDefinitionPath(clusterName));

View Full Code Here

         * note that session expiry may happen during checking leader and remove leader
         * in this race condition, we may remove a leader node created by another controller
         * this is fine since it will just invoke another round of leader-election
         */
        if (_controller.isLeader()) {
          accessor.removeProperty(keyBuilder.controllerLeader());
        }
      }


    } catch (Exception e) {
      LOG.error("Exception when trying to become leader", e);

View Full Code Here

0 1 2 3 4 5 6

TOP

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.