/**
* Name Server: 删除 value 对应的所有 key
*/
public void deleteKVConfigByValue(final String namespace, final String projectGroup,
final long timeoutMillis) throws RemotingException, MQClientException, InterruptedException {
DeleteKVConfigRequestHeader requestHeader = new DeleteKVConfigRequestHeader();
requestHeader.setNamespace(namespace);
requestHeader.setKey(projectGroup);
RemotingCommand request =
RemotingCommand.createRequestCommand(RequestCode.DELETE_KV_CONFIG_BY_VALUE, requestHeader);
List<String> nameServerAddressList = this.remotingClient.getNameServerAddressList();