Race condition in LocalizerRunner causes container localization timeout.
Currently LocalizerRunner will kill the ContainerLocalizer when pending list for LocalizerResourceRequestEvent is empty.
If a LocalizerResourceRequestEvent is added after LocalizerRunner kill the ContainerLocalizer due to empty pending list, this LocalizerResourceRequestEvent will never be handled.
Without ContainerLocalizer, LocalizerRunner#update will never be called.
The container will stay at LOCALIZING state, until the container is killed by AM due to TASK_TIMEOUT.