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

    HelixDataAccessor accessor = _manager.getHelixDataAccessor();
    PropertyKey.Builder keyBuilder = accessor.keyBuilder();
    final Set<String> toRemove = Sets.newHashSet(config.getJobDag().getAllNodes());
    for (String resourceName : toRemove) {
      accessor.removeProperty(keyBuilder.idealStates(resourceName));
      accessor.removeProperty(keyBuilder.resourceConfig(resourceName));
      // Delete context
      String contextKey = Joiner.on("/").join(TaskConstants.REBALANCER_CONTEXT_ROOT, resourceName);
      _manager.getHelixPropertyStore().remove(contextKey, AccessOption.PERSISTENT);
    }

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    // remove dead external-views
    for (String resourceName : curExtViews.keySet()) {
      if (!resourceMap.containsKey(ResourceId.from(resourceName))) {
        LOG.info("Remove externalView for resource: " + resourceName);
        dataAccessor.removeProperty(keyBuilder.externalView(resourceName));
      }
    }


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

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    accessor.getBaseDataAccessor().update(workflowKey.getPath(), dagRemover,
        AccessOption.PERSISTENT);


    // Delete resource configs.
    PropertyKey cfgKey = getConfigPropertyKey(accessor, resourceName);
    if (!accessor.removeProperty(cfgKey)) {
      throw new RuntimeException(
          String
              .format(
                  "Error occurred while trying to clean up job %s. Failed to remove node %s from Helix. Aborting further clean up steps.",
                  resourceName, cfgKey));

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                  "Error occurred while trying to clean up job %s. Failed to remove node %s from Helix. Aborting further clean up steps.",
                  resourceName, propStoreKey));
    }
    // Finally, delete the ideal state itself.
    PropertyKey isKey = getISPropertyKey(accessor, resourceName);
    if (!accessor.removeProperty(isKey)) {
      throw new RuntimeException(String.format(
          "Error occurred while trying to clean up task %s. Failed to remove node %s from Helix.",
          resourceName, isKey));
    }
    LOG.info(String.format("Successfully cleaned up job resource %s.", resourceName));

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    // clean up workflow-level info if this was the last in workflow
    if (lastInWorkflow && cfg.isTerminable()) {
      // delete workflow config
      PropertyKey workflowCfgKey = getConfigPropertyKey(accessor, workflowResource);
      if (!accessor.removeProperty(workflowCfgKey)) {
        throw new RuntimeException(
            String
                .format(
                    "Error occurred while trying to clean up workflow %s. Failed to remove node %s from Helix. Aborting further clean up steps.",
                    workflowResource, workflowCfgKey));

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    // round3: node0 removes message and controller's rebalance pipeline should be
    // triggered
    // and sends S->M to node0
    messages = accessor.getChildNames(keyBuilder.messages("localhost_0"));
    accessor.removeProperty(keyBuilder.message("localhost_0", messages.get(0)));
    Thread.sleep(1000);


    messages = accessor.getChildNames(keyBuilder.messages("localhost_0"));
    Assert.assertEquals(messages.size(), 1);
    ZNRecord msg =

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    // round3: remove O->S for localhost_0, controller should now send O->DROPPED to
    // localhost_0
    Builder keyBuilder = accessor.keyBuilder();
    List<String> msgIds = accessor.getChildNames(keyBuilder.messages("localhost_0"));
    accessor.removeProperty(keyBuilder.message("localhost_0", msgIds.get(0)));
    runPipeline(event, dataRefresh);
    runPipeline(event, rebalancePipeline);
    msgSelOutput = event.getAttribute(AttributeName.MESSAGES_SELECTED.toString());
    messages =
        msgSelOutput.getMessages(ResourceId.from(resourceName),

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      // 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;
      }


      SessionId tgtSessionId = message.getTypedTgtSessionId();

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

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            "Failed to create message handler for " + message.getMessageId() + ", 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;
      }

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