[YARN-8694] app flex with relative changes does not work

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 3.1.1
• Component/s: yarn-native-services
• Assignee: Unassigned
• Reporter: kyungwan nam
• Created: 21/Aug/18 10:59
• Updated: 26/Oct/18 04:13

Description

I'd like to increase 2 containers as belows.

yarn app -flex my-sleeper -component sleeper +2

but, It did not work. it seems to request 2, not +2.

 

ApiServiceClient.actionFlex

@Override
public int actionFlex(String appName, Map<String, String> componentCounts)
    throws IOException, YarnException {
  int result = EXIT_SUCCESS;
  try {
    Service service = new Service();
    service.setName(appName);
    service.setState(ServiceState.FLEX);
    for (Map.Entry<String, String> entry : componentCounts.entrySet()) {
      Component component = new Component();
      component.setName(entry.getKey());

      Long numberOfContainers = Long.parseLong(entry.getValue());
      component.setNumberOfContainers(numberOfContainers);
      service.addComponent(component);
    }
    String buffer = jsonSerDeser.toJson(service);
    ClientResponse response = getApiClient(getServicePath(appName))
        .put(ClientResponse.class, buffer);

It looks like there is no code, which handle “+”, “-“ in ApiServiceClient.actionFlex