Re: Bug in HTTP API's http_req() procedure - leaving connections open

Brad,

That was my first thought....

But we've proven that the issue is socket connections being left open...

It's a new program, connecting to a new endpoint and we can see that the
connections to those endpoints are still open in the job using
QSYS2.NETSTAT_JOB_INFO().


Charles


On Fri, Jan 11, 2019 at 1:49 PM B Stone <bvstone@xxxxxxxxx> wrote:

Charles,

While you're waiting for an answer, I want to mention that I've seen this
issue, although with GETURI, normally stems from other processing that is
going on in the user's program.

What I would check is make sure you don't have any programs that are
opening any stream files (or sockets, just in case) and not closing them.

I'm not saying its impossible that HTTPAPI is leaving sockets or file
descriptors open, I'm just saying it's unlikely. Especially if not
mentioned in the release notes.

Bradley V. Stone
www.bvstools.com
MAILTOOL Benefit #3 <https://www.bvstools.com/mailtool.html>: No 400 byte
or less message limit as with SNDDST or SNDSMTPEMM.

On Fri, Jan 11, 2019 at 12:28 PM Charles Wilt <charles.wilt@xxxxxxxxx>
wrote:

Since the FTPAPI list is having problems, thought I'd post here...

Running v1.33 of HTTP API, and noticing connections sometimes being left
open by the HTTPS calls that use the http_req() procedure.

Noticeable only because it's happening in a set of long running job

making

50,000+ calls...

Problem manifested as "out of range" error
"One of the following has occurred in RPG procedure COMMTCP_FD in program
LIBHTTP/HTTPAPIR4: - A numeric length or start position is less than 1 or
too large for the string operation.describe her in this message"

as described here...
http://www.scottklement.com/archives/ftpapi/201504/msg00093.html

It seems we're a few versions behind...

Changes to version 1.39 from 1.38:

- Fixed ALGD0200 declaration in ENCRYPTR4 -- though, this should

not impact current users. (Thomas Raddatz)

- Correct international handling of $Version string in Cookie

header routines.

Changes to version 1.38 from 1.37:

- Added memory alloc/dealloc diagnostic routines

- Fixed memory leaks -- comm drivers were not cleaned up

- fixed mismatches with regular alloc vs xalloc

Changes to version 1.37 from 1.36:

- Fix problem where debugLevel not propagated properly

- Added buffering to COMMTCPR4 to improve LineRead performance

- Added buffering to COMMSSLR4 to improve LineRead performance

Changes to version 1.36 from 1.35:

- Fix problem where http_persist_close() would get a pointer error

if http_persist_open() failed during SSL handshake.


The changes in 1.36 and 1.38 seem most likely to be related. Trying to

get

the latest version put on to test.

But I'm hoping somebody here as seen the issue and can confirm it's fixed
in a later version when I push management for the upgrade.

Thanks!
Charles
--
This is the Web Enabling the IBM i (AS/400 and iSeries) (WEB400) mailing
list
To post a message email: WEB400@xxxxxxxxxxxxxxxxxx
To subscribe, unsubscribe, or change list options,
visit: https://lists.midrange.com/mailman/listinfo/web400
or email: WEB400-request@xxxxxxxxxxxxxxxxxx
Before posting, please take a moment to review the archives
at https://archive.midrange.com/web400.

--
This is the Web Enabling the IBM i (AS/400 and iSeries) (WEB400) mailing
list
To post a message email: WEB400@xxxxxxxxxxxxxxxxxx
To subscribe, unsubscribe, or change list options,
visit: https://lists.midrange.com/mailman/listinfo/web400
or email: WEB400-request@xxxxxxxxxxxxxxxxxx
Before posting, please take a moment to review the archives
at https://archive.midrange.com/web400.