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We're trying to connect the same subscriber with Kamailio for load testing. Sometimes it registers successfully but sometimes it throws the following error.
From my understanding by checking the source code, TLS_WR_MBUF_SZ is set as 65536 by default. This is the reason for "write buffer too small". Can someone help me with how to change that?
I don't exactly know how to reproduce as some the clients pass and some fail.
(paste your debugging data here)
BUG: tls [tls_server.c:849]: tls_encode_f(): write buffer too small (65536/65536 bytes)
ERROR: websocket [ws_frame.c:300]: encode_and_send_ws_frame(): sending WebSocket frame
ERROR: websocket [ws_frame.c:800]: ws_frame_transmit(): sending message
NOTICE: <script>: WebSocket connection from a.b.c.d:1234 has closed
ERROR: registrar [reply.c:745]: reg_send_reply(): failed to send 200 OK
ERROR: [core/tcp_main.c:3502]: handle_ser_child(): received CON_ERROR for 0x7f9472eec990 (id 100), refcnt 4, flags 0x4018
NOTICE: <script>: Error in saving location data
WARNING: sl [../../core/forward.h:173]: msg_send_buffer(): TCP/TLS connection for WebSocket could not be found
ERROR: sl [sl_funcs.c:362]: sl_reply_error(): stateless error reply used: I'm terribly sorry, server error occurred (1/SL)
WARNING: [core/tcp_read.c:1716]: handle_io(): F_TCPCONN connection marked as bad: 0x7f9472eec990 id 100 refcnt 1
Need to increase the default tls write buffer size from 65536. I think it is set as
"#define TLS_WR_MBUF_SZ 65536"
kamailio -vversion: kamailio 5.0.8 (x86_64/linux) c35e69
flags: STATS: Off, USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MEM, SHM_MMAP, PKG_MALLOC, Q_MALLOC, F_MALLOC, TLSF_MALLOC, DBG_SR_MEMORY, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLACKLIST, HAVE_RESOLV_RES
ADAPTIVE_WAIT_LOOPS=1024, MAX_RECV_BUFFER_SIZE 262144, MAX_LISTEN 16, MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB
poll method support: poll, epoll_lt, epoll_et, sigio_rt, select.
id: c35e69
compiled on 05:04:45 Nov 25 2019 with gcc 4.8.5
Linux 3.10.0-957.21.3.el7.x86_64 #1 SMP Tue Jun 18 16:35:19 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
CentOS Linux release 7.7.1908 (Core)
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