TransferManager::uploadFile | path: /tmp/workspace/nhc-sa.675622_result/nhc-sa.675622_1264112.cpc, error: {"stack":"Error: write EPIPE
    at WriteWrap.onWriteComplete [as oncomplete] (node:internal/stream_base_commons:95:16)","message":"write EPIPE","errno":-32,"code":"EPIPE","syscall":"write"}

// applications/agents/packages/cupix-capture-3d-reconstruction-agent/src/manager/transfer.manager.ts:86-108
uploadFile = (url: string, path: string, headers: any): Promise<void> => new Promise((resolve, reject) => {
    logger.debug('TransferManager::uploadFile | begin path: %s, url: %s, size: %d', path, url, CPUtils.getFileSize(path));
    const sendReq = request.put(url, {
        headers: headers,
        body: fs.readFileSync(path)  // 파일 전체를 메모리에 동기적으로 로드
    });

    sendReq
        .on('response', async res => {
            if (res.statusCode === 200) {
                // ...
            } else {
                logger.error('TransferManager::uploadFile | response path: %s, code: %d, message: %s', path, res.statusCode, res.statusMessage);
                reject(this.cupixAuth.handleError(res));  // 502 응답 시 이 경로
            }
        })
        .on('error', err => {
            logger.error('TransferManager::uploadFile | path: %s, error: %s', path, JSON.stringify(err, Object.getOwnPropertyNames(err)));
            reject(this.cupixAuth.handleError(err));  // EPIPE 에러 시 이 경로
        });
});

// applications/agents/packages/api/src/authentication/cupix-auth.ts:39-54
handleError = (ec: any): any => {
    const response = ec && CPUtils.isJsonString(ec) ? JSON.parse(ec) : ec.response;
    if (response != undefined) {
        // ...
    } else {
        // EPIPE 에러는 response가 없으므로 이 경로로 진입
        logger.warn('CupixAuth::handleError | Undefined response: %s', JSON.stringify(ec, Object.getOwnPropertyNames(ec)));
    }
    return ec;  // 원본 에러 객체를 그대로 반환
};

// applications/agents/packages/cupix-capture-3d-reconstruction-agent/src/manager/transfer.manager.ts:169-172
private checkStatusCode = (error: any): boolean => {
    if (error?.statusCode != undefined && error.statusCode > 400 && error.statusCode < 500) return false;
    return true;
};

service:cupixworks-capture-3dreconstruction-instance status:error "TransferManager::uploadFile"
Time range: 2026-04-06T23:00:00Z to 2026-04-07T02:00:00Z

service:cupixworks-capture-3dreconstruction-instance "EPIPE"
Time range: 2026-03-25T00:00:00Z to 2026-04-08T00:00:00Z

service:cupixworks-capture-3dreconstruction-instance "502"
Time range: 2026-04-01T00:00:00Z to 2026-04-08T00:00:00Z

TransferManager::uploadFile | path: /tmp/workspace/nhc-sa.675622_result/nhc-sa.675622_1264112.cpc, error: {"stack":"Error: write EPIPE\n    at WriteWrap.onWriteComplete [as oncomplete] (node:internal/stream_base_commons:95:16)","message":"write EPIPE","errno":-32,"code":"EPIPE","syscall":"write"}

TransferManager::uploadFile | response path: /tmp/workspace/nhc-sa.675622_result/nhc-sa.675622_1264112.cpc, code: 502, message: Bad Gateway

CupixAuth::handleError | Undefined response: {"stack":"Error: write EPIPE\n    at WriteWrap.onWriteComplete [as oncomplete] (node:internal/stream_base_commons:95:16)","message":"write EPIPE","errno":-32,"code":"EPIPE","syscall":"write"}

CupixAuth::handleError | Undefined response: {"statusCode":502,"request":{"method":"PUT"}}

TransferManager::uploadFile | path: /tmp/workspace/gad.672414_result/gad.672414_1257830.cpc, error: {"stack":"Error: write EPIPE\n    at WriteWrap.onWriteComplete [as oncomplete] (node:internal/stream_base_commons:95:16)","message":"write EPIPE","errno":-32,"code":"EPIPE","syscall":"write"}

service:cupixworks-capture-3dreconstruction-instance status:error "TransferManager::uploadFile"

service:cupixworks-capture-3dreconstruction-instance "EPIPE"

service:cupixworks-capture-3dreconstruction-instance status:error "uploadFile" ("502" OR "500")