Frequently fails with HTTPS‌ POST(libressl) #1035

yanhaixin · 2025-03-25T06:34:31Z

Hello

When using libcurl to send a POST request with a large payload (600KB repeated 100 times, total ~60MB) to an oat++ server:

Works perfectly over ‌HTTP‌
Frequently fails with errors when switching to ‌HTTPS‌ (error details shown below).

Trying 127.0.0.1:8000...
ALPN: curl offers http/1.1
SSL connection using TLSv1.3 / TLS_AES_256_GCM_SHA384 / [blank] / UNDEF
ALPN: server did not agree on a protocol. Uses default.
Server certificate:
subject: C=CN; ST=JiangSu; L=Nanjing
start date: Mar 20 05:23:57 2025 GMT
expire date: Mar 18 05:23:57 2035 GMT
issuer: C=CN; ST=JiangSu; L=Nanjing
SSL certificate verify result: self signed certificate (18), continuing anyway.
Certificate level 0: Public key type ? (1024/80 Bits/secBits), signed using sha256WithRSAEncryption
Connected to 127.0.0.1 (127.0.0.1) port 8000
using HTTP/1.x

POST /write?db=hts HTTP/1.1
Host: 127.0.0.1:8000
Accept: /
protocol: binary
Content-Length: 660048
Content-Type: application/x-www-form-urlencoded

Send failure: Connection reset by peer
LibreSSL SSL_write: LibreSSL/4.0.0: error:02FFF068:system library:func(4095):Connection reset by peer, errno 104
closing connection #0

Reducing the payload size has been observed to increase HTTPS transmission success rates.
any idea？

Provide feedback