Ssl write failed

allins · May 9, 2008, 7:40pm

2008/05/09 18:25:44 [crit] 15521#0: *168933 SSL_write() failed (SSL:
error:1409F07F:SSL routines:SSL3_WRITE_PENDING:bad write retry) while
sending to client, client: 81.252.180.89, server:
secure.thepinkpatch.co.uk, request: “GET /s-TPP/lp HTTP/1.0”,
upstream: “memcached://127.0.0.1:11211”, host:
“secure.thepinkpatch.co.uk”

is this an error in the underlying ssl code or in nginx?

allins · May 9, 2008, 7:49pm

On Fri, May 09, 2008 at 01:30:26PM -0400, Sean A. wrote:

2008/05/09 18:25:44 [crit] 15521#0: *168933 SSL_write() failed (SSL:
error:1409F07F:SSL routines:SSL3_WRITE_PENDING:bad write retry) while
sending to client, client: 81.252.180.89, server:
secure.thepinkpatch.co.uk, request: “GET /s-TPP/lp HTTP/1.0”,
upstream: “memcached://127.0.0.1:11211”, host:
“secure.thepinkpatch.co.uk”

is this an error in the underlying ssl code or in nginx?

What nginx version do you use ?
This error should be fixed in 0.6.26 and 0.5.36.

allins · May 9, 2008, 11:23pm

On May 9, 2008, at 1:40 PM, Igor S. wrote:

What nginx version do you use ?
This error should be fixed in 0.6.26 and 0.5.36.

that machine is a 0.5.35 i’ll upgrade and see what happens.

allins · May 10, 2008, 3:43am

is anyone working on a h.264 mod , that allows for streaming like the
flv mod?

i only ask because a friend was needing h264 support, and lighty has
it now ( http://h264.code-shop.com/trac ) but nginx doesn’t

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allins · May 13, 2008, 8:17am

On May 9, 2008, at 5:12 PM, Sean A. wrote:

upstream: “memcached://127.0.0.1:11211”, host:
“secure.thepinkpatch.co.uk”

is this an error in the underlying ssl code or in nginx?

What nginx version do you use ?
This error should be fixed in 0.6.26 and 0.5.36.

that machine is a 0.5.35 i’ll upgrade and see what happens.

that seems to have done the trick.

allins · May 10, 2008, 9:43am

I’m not sure manipulating mp4 files is a good idea in a single process
server. Also Adobe released a new FLV specification a few days ago that
supports h264, so there is no real need for supporting mp4 files,
because
the flv streaming module already works.

Sergej

allins · June 14, 2008, 7:23am

Yes it will work. The only question is, if there is an encoder out yet
that
can save h264 video in flv. I know the ffmpeg guys were working on it.

allins · June 14, 2008, 7:35am

On Fri, Jun 13, 2008 at 06:03:49PM -0700, mike wrote:

So does the nginx “flv” module work out of the box properly with the
latest methods of doing h.264/flash video streaming?

I just wanted to ask, I have not used it yet but may need to soon. I
assume it works in conjunction with .swf players that use the
?start=XXX type method to be able to skip throughout the file properly
(since it’s not a progressive download?)

Yes, nginx does not know anything about flv file structure.
It’s player job to request correct ?start=XXX.

allins · June 14, 2008, 7:39am

Okay, so can I ask then what exactly the “flv” thing does in nginx?

HTTP supports resuming from a byte offset already, what is so special
about flv?

allins · June 14, 2008, 3:12am

So does the nginx “flv” module work out of the box properly with the
latest methods of doing h.264/flash video streaming?

I just wanted to ask, I have not used it yet but may need to soon. I
assume it works in conjunction with .swf players that use the
?start=XXX type method to be able to skip throughout the file properly
(since it’s not a progressive download?)

allins · June 14, 2008, 7:55am

On Fri, Jun 13, 2008 at 10:31:18PM -0700, mike wrote:

Okay, so can I ask then what exactly the “flv” thing does in nginx?

HTTP supports resuming from a byte offset already, what is so special about flv?

When nginx gets “?start=XXX” query string, it sends constant 13-byte FLV
header followed by file starting from the requested offset.
You may see similar PHP code flvprovider.php at

allins · June 14, 2008, 7:47am

followup question:

can a PHP script sending the X-Accel-Redirect: /path/to/file.flv
header also take advantage of the nginx flv functionality?

allins · June 14, 2008, 7:57am

On Fri, Jun 13, 2008 at 10:41:08PM -0700, mike wrote:

followup question:

can a PHP script sending the X-Accel-Redirect: /path/to/file.flv
header also take advantage of the nginx flv functionality?

Yes, but do not forget “start”:

X-Accel-Redirect: /path/to/file.flv?start=XXX

Besides, nginx can handle flv only as static file, i.e. the request
can not be proxied, etc. However, you can use nginx on storage backends:

nginx/proxy_buffering off  ->   nginx/FLV
                                nginx/FLV
                                nginx/FLV

allins · June 16, 2008, 10:23pm

So pseudo code for a file named “/videoplay.php”:

header(“Content-type etc…”)

if(isset($_GET[‘start’])) {
$start = intval($_GET[‘start’]);
header(“X-Accel-Redirect: /path/to/file.flv?start=$start”);
} else {
header(“X-Accel-Redirect: /path/to/file.flv”);
}

and in nginx.conf, I could have:

location /videoplay.php {
flv;
}

would this work together?

allins · June 17, 2008, 1:47am

Problem is we need to use PHP to authenticate the user is allowed to
see the flv file… Igor says it can be used with X-Accel-Redirect.

So if the path was

/video/view/play.php?file=12345

I could do:

location /video/view/ {
flv;
}

and that would work? Thanks a ton.

I guess it might also be possible to look at outputting the magic FLV
byte string instead of piggybacking it on nginx … hmm

allins · June 17, 2008, 1:09am

Hello!

On Mon, Jun 16, 2008 at 01:07:20PM -0700, mike wrote:

and in nginx.conf, I could have:

location /videoplay.php {

-location /videoplay.php {
+location /path/to/ {

flv;
}

would this work together?

You should use flv on actual files, not on your php script.

Maxim D.

allins · June 17, 2008, 10:29am

On Mon, Jun 16, 2008 at 01:07:20PM -0700, mike wrote:

and in nginx.conf, I could have:

location /videoplay.php {
flv;
}

would this work together?

 location = /videoplay.php {
      proxy_pass or fastcgi_pass
 }

 location /path/to/ {
      internal;
      flv;
      root  ...
 }

allins · June 17, 2008, 9:06pm

On 6/17/08, Igor S. [email protected] wrote:

location = /videoplay.php {
     proxy_pass or fastcgi_pass
}

location /path/to/ {
     internal;
     flv;
     root  ...
}

Is there a debugging option available that would show something like

“X-Accel-Redirect triggered for URL: /foo/bar/baz.php?start=1234”
“FLV byte triggered for request”

a couple things like that? I’m just trying to figure out once I set
this up how to sanity check it’s doing all the magical FLV bytes too.

Thanks a lot Igor - just FYI I gave you “Respect Knuckles” on my
website recently
http://michaelshadle.com/2008/06/14/rk-igor-sysoev/

allins · June 17, 2008, 10:40pm

On Tue, Jun 17, 2008 at 11:56:39AM -0700, mike wrote:

}
Is there a debugging option available that would show something like

“X-Accel-Redirect triggered for URL: /foo/bar/baz.php?start=1234”
“FLV byte triggered for request”

a couple things like that? I’m just trying to figure out once I set
this up how to sanity check it’s doing all the magical FLV bytes too.

No, only a full debug log.
You should egrep for “(internal redirect|flv filename)”

Thanks a lot Igor - just FYI I gave you “Respect Knuckles” on my
website recently
The Life and Times of Michael Shadle » RK: Igor Sysoev

Thank you, although I do not understand some idioms

allins · October 8, 2008, 12:28am

On Tue, Oct 7, 2008 at 3:16 PM, Thomas [email protected] wrote:

Is it coming from the metadata that is positionned at the end of the
video file instead of at the beginning?

Did anyone manage to create a streamable flv video with h264 format?

I am on the Adobe FMS beta program - I can probably provide you some
FLV content authored by Flash Media Encoder 3.x if you want to test it
(FLV with H264). Let me know…

Cheers
Kon