Media Server :: Large Volume Of Connections And Exceeding The Process Memory Limit Of OS?
Jun 7, 2011
It stands to reason that an OS would have a memory limit for the FMS process. I have a video chat app to which I may need to connect 300,000 or more concurrent users. Has anyone done this? Would this break the bank? What's the most you've ever had connected at once?
The video portion of my app goes through a good CDN, so I don't think there's a problem there. But my chat room is all on one FMS instance. I see something in FMS docs in "configuring performance features" that warns, "Adobe recommends that you ensure that your total system memory usage does not exceed the process limit of your OS". Granted it's in the context of configuring media cache, but wouldn't the same apply to chat room size if the numbers get high enough?
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Mar 1, 2010
I am involved in project managment for a large video conferncing project involving over 100k simultanous connection and most likely to be increased 4 times by next six months.While figuring out the scalability area ,it was concluded that smart selection of hardware and origin-edge clustering will be suited most. Well while studying this documentation says it supports thousands of calls but unfortunately I could not determine the actual numbers. Can you tell me how many edge server will be needed for 100k simultanous calls/number of sessions per edge server and will we need license (4500$) for each edge server?
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Feb 23, 2012
I have been running FMIS 3.5 for about 18 months, and recently it started acting up even though I have not made any changes. After a while (sometimes days, sometimes hours), it starts rejecting new connections, but it allows existing connections to keep working. If I refresh my app, then I can't reconnect. The license I have is unlimited. Can anyone shed some light into why this is doing this and what I can do to fix it? Sometimes it happens when only a couple dozen people are online, and today it did it about 4 times with over 1500 people online.
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Jul 8, 2011
I have a setup where I have some edge servers (as in <Mode>remote</Mode>) that pull content from an origin server. I only want to allow RTMPE connections to the edge server. I'm trying to do this by using the <DisallowedProtocols> element on the origin server. I'm setting: <DisallowedProtocols>rtmp,rtmps,rtmpt</DisallowedProtocols>
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[Code]...
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Jan 12, 2011
We purchased FMIS and we are encoding large 15+ hour MP4 recordings using flash media encoder. When opening these large files for playback, which have not been opened recently the player displays the loading indicator for up to 4 minutes! Once it has apparently been cached on the server it opens immediately from any browser even after clearing local browser cache. So a few questions for the experts
1. Why is it taking so long to load the file. Is it because the MP4 metadata is in the wrong format and the file is so huge? I read somewhere that Media Encoder records with incorrect MP4 metadata is that still the case?
2. Once its cached on the server, exactly how much of it is cached. Some of these files are larger than 500mb.
3. What fms settings do you suggest I change. FMIS is running on windows server R2 64 bit, but FMIS itself is 32 bit. We have not upgraded to the 64 bit version. We have 8GB of ram. Is it OK to set FMS cache to 3GB. And would that only have enough room for 3-4 large files, because we have hundreds of them.
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Feb 16, 2010
How is it possible to determine in advance the max number of simultaneous connection for my FMS?
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Jun 29, 2010
The attached image shows 17 client connections. Unfortunately there are not 17 clients connected to that app. In fact, I add users to a userlist shared object in application.onConnect(), and that shared object only reports 6 connections. That is the accurate number of connected users.
Why the phantom connections? Even if I unload and reload the app, the 17 client connections return.
How can my userlist shared object and the client connection number be out of sync? This situation seems to be related in some way to an FMS memory problem that is cropping up all of a sudden. When I have larger numbers of connected clients - say 300, the client connections reported in the FMS console are ten times that - like 3,000 or more. Then the application is unloaded by FMS for being a memory hog.
The app itself is simple. It just stores each user in a user array and passes chat communication to and from these users. The last time this main.asc code was changed was 2/8/2010. No problems with it in the countless times we've used it since then. Why the sudden phantom FMS connections, memory hog behavior, and constant unloading of the app?
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Aug 14, 2011
URL...I am running application instance that implements publisher/subscriber on video streams. Application code is very thin and can be removed completetly if required. In a specific time, randomly, disconnect messages stopped happening which causes the folowing:
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2. Users count is increasing linearly.
3. No disconnect messages apears on access.0x.log
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Sep 7, 2011
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Apr 10, 2012
How to set the maximum number of connections of FMS on the same IP?
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Sep 10, 2009
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Mar 17, 2011
I have a FMS server running that I am hosting some VOD content on. I am using HTTP dynamic streaming to deliver this content. Everything runs fine from a technical standpoint, but I am unable to see the connection details in the Admin Console. I have loaded vod -> defaultinst under the applications tab in the console. No connection details populate.
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Jun 4, 2011
I'd like to hear some opinions about using NetGroups VS. using direct p2p connections between everybody, considering there would either be 2,3 or 4 people max in the group.
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Nov 23, 2009
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Apr 11, 2012
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Jan 14, 2010
Default install of Flash Media Server 3.5.2 r654 on Windows 2003 Server Sp2. 16 GB of RAM. Just testing with the out of box Flash application, and simple 'hello world' rtmp streaming video app, we see several times a day at seemingly random intervals FMSEdge.exe will jump to 100% and peg the CPU and stay there. Until it is killed, the Flash applications are unresponsive until it is killed. As one would expect, this is a showstopper for any serious use -- Keep in mind this is an OOB install. There was a previous thread mentioning a similar issue (ie FMSEdge pegs cpu) coinciding with the virus scan, however no one responded to solve that issue.
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Oct 7, 2009
We have a custom application that is running on FMS. Server is dedicated just for fms, there is only one application running on the server, with more instances, average traffic is 3-15 simultaneous users.The problem is,server suddenly stops accepting connections (after 1-3 days from restart), from this point it is impossible to connect to any instance, and fms server must be restarted.When the server crashes, the admin console can see all open instances, can close instances, can restart fms. There is nothing logged, that would explain this sudden failure.Second problem is, cores are connected and disconnected too often, causing client to reconnect (takes 2-5 seconds).
Hardware: 4 x quadcore Intel(R) Xeon(R) CPU E7440 @ 2.40GHz, 32 GB ram
OS: CentOS release 5.3 (Final), kernel: 2.6.18-128.4.1.el5
cpu and mem usage: 1-5% max[code]...........
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Dec 10, 2010
Server conf:
2 x Intel(R) Xeon(R) CPU L5410 @ 2.33GHz
16Gb RAM
2 Gbit ethernet channel
OS - Linux CentOS 5.5 x86_64
FMS4 Interactive
Live stream parameters:
320Ñ…240 qua_=87 bw_=200000 kf_=5 fps_=18
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Jan 9, 2011
I'm trying to find out how I can tell how many users are connected to the same FMS application in a flex application:
public function totalConnectedUsers():void{
lblText1.text = "There are a total of " + bindableUserVariable + " Users Connected to the Stream Now";
}
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May 20, 2011
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Sep 19, 2010
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May 17, 2011
I am wondering what values should I put in the Process tag of Application.xml considering my application. I've done some studies but I am still unsure and would like some expert opinion To help you help me : I have a video chat application that comes with a contact list, so think skype on the web.
[Code]...
I set a RollerOver because sometimes RTMFP crashes on my server, and by putting the RollOver it seems to help, by re-newing the core process. However when clients are connected before the rollover, then they will not see their friends going online after the rollover which sucks.
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Feb 19, 2010
1937396On Linux, the fmsedge process needed to run without root access.
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Feb 10, 2012
I am developing a video player that is almost done, but there is a problem in Bufferbar
I am using a flvplayback for video playing when I use http path for video it show bufferbar working perfectly like below:
Code:
_flvPlayback.source = "http://flash.projectstatus.in/fmsvid/sample.flv";
If I use rtmp path from the fms the bufferbar does not work it shows already full like below:
Code:
_flvPlayback.source = "rtmp://75.126.73.138/vod/flv:sample.flv";
In both case video playing perfectly. Only problem regarding buffering bar.
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Feb 23, 2012
I am sometimes (sporadically) facing the problem, that I cannot connect to FMS server with FMLE, using username and password.When I then restart FMS everything is working correct again. A customer discribed that he was not able to reconnect to the fms, as soon as he closed the FMLE without stopping encoding process?I am using the default authentication plug-in in FMS 3.5.6 on a 64-bit Debian.Everything else is working correct, only reconnecting with encoding-software (like FMLE) is not working.Is there any possibility to get the authentication working again, without restarting the whole fms process?
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Jun 29, 2010
I'm getting this error with one chat application. According to
[URL]
..I should "Check the JavaScript runtime size for this application in the configuration file". By default it was set to 1024. Any attempt to increase it causes FMS not to start again. This problem just came out of the blue. This same chat app has been in operation with no trouble for about 10 months. I restart the server machine on which it resides before each new chat session.
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Apr 21, 2009
I am experiencing some failures with FMS 3.5.1. Searched the logs and it appears the following error repeats itself more than 20 times per second in the admin logs: Failed to wait for process condition: errno(22).
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Feb 11, 2011
The line: Master process not found, or multiple masters
appears in /var/log/messages of a Centos server running FMS 3.5 right around the time Flash videos stop working on a site we built. Oddly, nothing appears in /opt/adobe/fms /logs/ master.xx.log at the corresponding time*. Is there likely to be any more illuminating information somewhere on the server, to help us identify what caused Flash to stop working?
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Mar 15, 2010
I've been experimenting with Dynamic Streaming while in the process of writing a tutorial. The documentation is quite clear on a few points: The keyframe interval in the various encodings should be shortThe bufferlength should be at least 2x the keyframe intervalThe player should sense a bandwidth change, by default, within the 4-second sampling interval and call for a switch. Then, the switch could take as long as 2x the keyframe interval after that. What I'm finding is wildly different behavior than this. It takes anywhere from 10-15 seconds for the player to notice the change and call for a switch, then another 20-40 seconds for the switch to happen. When switching up to a higher bitrate stream, this just means the user gets low bitrate video for longer than they ought to. But when switching down due to falling bandwidth, the buffer runs out and the user stares at the rebuffering sign for a lengthy time - long enough to give up on watching the video, for sure.
I've encoded an H.264 MP4 file at 64, 384, and 768 kbps, at 30fps and an "every 60 frames" keyframe interval. I've streamed it rtmp via two different CDNs that use FMS 3.5, into two different Flash video players (JW Player and Flowplayer). I've restricted my bandwidth on Windows XP with Netlimiter 2.0; and on the Mac with 'ipfw'. I've set bufferlength between 4 and 10 seconds. I've tested switching up and switching down. For up, I start with a 200kbps bandwidth limit. The video starts OK with the correct stream, then at 5 seconds I open up the bandwidth to unrestricted. For testing down, I do the opposite: start at unrestricted and then at 00:05 restrict to 200kbps.
My test page, with both players and sample code is at [URL] n-flash-bitrate-switching/ I also have a couple of screen recordings there showing the behavior of the whole process, both switching up and switching down. I thought I've done everything right here - paid attention to every documented detail, but it works rather poorly. Can someone explain whether this is expected behavior, if the players have implemented dynamic switching poorly, or if I'm doing something wrong?
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