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Author Topic: GAS Failed to read TLV  (Read 1540 times)
Davide R.
Posts: 1


« on: April 17, 2024, 04:02:45 pm »

Hi everyone,
sometimes I get notified that applications running via the GBC stop with this error:
Code
  1. The application encountered a problem.
  2. Session does not exist.

From the fastcgidispatcher logs I read this:
Code
  1. Line 9625836: 10:56:37.931886 321135.070829 [fastcgi.c:829] 1072 2437629696 STREAM=1232;FASTCGI=71443 "fastcgi_stream_fetch_record" H(version: 1, type: FCGI_PARAMS, requestId: 1, contentLe ngth: 0, paddingLength: 0
  2. Line 9625837: 10:56:37.931903 321135.070847 [dispatch_handler.c:3323] 1072 2437629696 STREAM=1232;FASTCGI=71443;REQID=639889 "Incoming request" /ua/sua/c7dca415c979bcce 17e922c8e0153bc0?appId=32&pageId=63
  3. Line 9625838: 10:56:37.931944 321135.070898 [dispatch_handler.c:594] 1072 2437629696 STREAM=1232;FASTCGI=71443;REQID=639889 "Forwarding request" POST /ua/sua/c7dca415c979 bcce17e922c8e0153bc0?ConnectorURI=/gas&appId=32&pageId=63 HTTP /1.1\r\nConnection: keep-alive\r\nCookie: MOD_AUTH_CAS_S=xxxxxxxxxxxxxxxxx; Genero-SID=3871f8bc65c7550ccaccbc40cb17e167; lang=it-IT\r\nSec-Fetch-Dest: empty\r\nContent-Length: 0\r\nReferer: https://erp.domain.tld.com/gas/ua/r/myGeneroApp_mar\r\nX- Fourjs-Client: GBC/1.00.60.xx-202112101034\r\nHost: erp.domain.tld.com\r\nSec-Fetch-Mode: cors\r\nSec-Fetch-Site: same-origin\r\nAccept- Language: it-IT,it;q=0.8,en-US;q=0.5,en;q=0.3\r\nAccept: */*\r\nOrigin: https://erp.domain.tld.com\r\ nAccept-Encoding: gzip, deflate, br\r\nUser-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS \r\nX-FourJs-Environment-Variable-REMOTE_ADDR: 172.20.214.101\r\nX-FourJs-Environment-Variable-REMOTE_USER: devid\r\nX-FourJs-Environment-Variable-SERVER_NAME: erp.domain.tld.com\r \nX-FourJs-Environment-Variable-HTTPS: on\r\n\r\n
  4. Line 9651801: 10:56:56.904757 321154.043702 [dispatch_handler.c:702] 1072 2437629696 STREAM=1232;FASTCGI=71443;REQID=639889 "SYSTEM ERROR" At (dispatch_handler.c:702) : Error 2 = ''
  5. Line 9651802: 10:56:56.904779 321154.043723 [dispatch_handler.c:702] 1072 2437629696 STREAM=1232;FASTCGI=71443;REQID=639889 "process_response_tlv_header" Failed to read TLV
  6. Line 9651803: 10:56:56.904785 321154.043729 [dispatch_handler.c:767] 1072 2437629696 STREAM=1232;FASTCGI=71443;REQID=639889 "SYSTEM ERROR" At (dispatch_handler.c:767) : Error 2 = ''
  7. Line 9651804: 10:56:56.904790 321154.043733 [dispatch_handler.c:767] 1072 2437629696 STREAM=1232;FASTCGI=71443;REQID=639889 "Forwarding response" Failed to process TLV header
  8. Line 9651805: 10:56:56.904811 321154.043754 [dispatch_handler.c:3134] 1072 2437629696 STREAM=1232;FASTCGI=71443;REQID=639889 "UA" Forward response failed, removing Session
  9. Line 9651806: 10:56:56.904818 321154.043762 [session.c:3692] 1072 2437629696 STREAM=1232;FASTCGI=71443;REQID=639889 "Session remove" Session c7dca415c979bcce17e922c8 e0153bc0 has not been removed from disk, already done by another thread
  10. Line 9651807: 10:56:56.904838 321154.043782 [fastcgi.c:829] 1072 2437629696 STREAM=1232;FASTCGI=71443;REQID=639889 "fastcgi_stream_fetch_record" H(version: 1, type: FCGI_STD IN, requestId: 1, contentLength: 0, paddingLength: 0
  11. Line 9651808: 10:56:56.904847 321154.043791 [fastcgi.c:885] 1072 2437629696 STREAM=1232;FASTCGI=71443;REQID=639889 "fastcgi_stream_fetch_record" No more data to read ==> EOF
  12. Line 9651809: 10:56:56.904877 321154.043821 [fastcgi.c:1733] 1072 2437629696 STREAM=1232;FASTCGI=71443;REQID=639889 "Response sent" 172.20.214.101 - devid [1 6/Apr/2024:08:56:37 GMT] "POST /ua/sua/c7dca415c979bcce17e922c8e0153bc0 " 500 0 "https://erp.domain.tld.com/gas/ua/r/myGeneroApp_mar" "Mozilla/5.0 (Macintosh; Intel Mac OS /20100101 Firefox/123.0" query string: appId=32&pageId=63
  13. Line 9651810: 10:56:56.904883 321154.043827 [fastcgi.c:1867] 1072 2437629696 STREAM=1232;FASTCGI=71443 "HTTP request" Failed to handle request /ua/sua/c7dca415c979bcce17e922c8e 0153bc0


What could it be?
Reuben B.
Four Js
Posts: 1071


« Reply #1 on: April 18, 2024, 02:08:07 am »

There maybe an innocent explanation for this.  Send your complete logs (dispatcher, proxy, vm) and version info to your support contact and ask if similar to SUP-30319/GAS-3843.  They can give more detail on the scenario but essentially a program has launched multiple child programs, user closes browser tab, and in the tidyup the proxy process is terminated before all the child processes are terminated. 

Product Consultant (Asia Pacific)
Developer Relations Manager (Worldwide)
Author of https://4js.com/ask-reuben
Contributor to https://github.com/FourjsGenero
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