if (log.isDebugEnabled() && seekResp.getOffset() != fileSize) {
                        log.debug(String.format("Open returned wrong size %d != %d", fileSize, seekResp.getOffset()));
                    }
                    fileSize = seekResp.getOffset();
                } catch (final Exception e) {
                    log.debug("Seek failed", e);
                    haveSize = false;
                }

            if (logger.isDebugEnabled()) {
                logger.debug("Skipped configsync flush: {}", fesenType);
            }
            callback.run();
            break;
        default:
            ComponentUtil.getCurlHelper().post("/_configsync/flush").execute(response -> {
                if (logger.isDebugEnabled()) {
                    logger.debug("Flushed config files: {} => {}", fesenType, response.getContentAsString());