public boolean persistExclusiveEphemeral()

in mode/cluster/repository/nacos/src/main/java/org/apache/shardingsphere/mode/repository/cluster/nacos/NacosRepository.java [123:131]


    public boolean persistExclusiveEphemeral(final String key, final String value) {
        try {
            Preconditions.checkState(findExistedInstance(key, true).isEmpty(), "Key `%s` already exists", key);
            put(key, value, true);
        } catch (final NacosException ex) {
            throw new ClusterRepositoryPersistException(ex);
        }
        return true;
    }