public HttpResponse disableReindexing(ApplicationId applicationId) {
        applicationRepository.modifyReindexing(applicationId, reindexing -> reindexing.enabled(false));
        return new MessageResponse("Reindexing disabled");
    }
Operations on applications (delete, wait for config convergence, restart, application content etc.)

@author hmusum
configserver/src/main/java/com/yahoo/vespa/config/server/http/v2/ApplicationHandler.java