Hoi Martin, what version of red5 are you using? There a bug with large flv's which is fixed, just wondering if you're already using that version or not.. check http://jira.red5.org/browse/SN-2 and http://jira.red5.org/ browse/APPSERVER-8 for details.
grt, Thijs Op 6-feb-2007, om 13:38 heeft Martin Schipper het volgende geschreven: > Hi peoples, > > I think I found a nasty issue (or I'm doing something wrong ;)). > I use Red5 as a streaming video server like used on http:// > www.geefme.nl/ > > The problem is that when serving several different and big flv files > (300MB+) and having more than 20 clients (some connecting, seeking or > just watching) Red5 stops responding for a couple of seconds and than > resumes. > > First I tested on a single core, single processor P4 3.0GHz. At 15~20+ > clients this event occurs frequently (freezing for a couple of > seconds) > and the server has a CPU usage of 100%. > Than I tested on a dual core, single processor Core2duo 2GHz. At the > same amount of clients the same problems occurs but the CPU usage hits > 25%... > 20 clients is approximate 20~25Mbps of traffic and when the > application > 'freezes', the traffic drops to 100Kbps and the CPU maxes out (single > proc = 100% on the Core2duo system: 25%). > > For you're information; I run Debian Linux first with JRE 1.5 and > later > with JRE 1.6 (tested with both JRE's). Both machines have 4GB > memory and > the FLV's are served from a fileserver using NFS connected by a 1Gbps > Ethernet connection. > > When I checked the logs I found out all IO uses the same thread. > Like this: > > [DEBUG] 2007-02-05 23:02:40,621 SocketAcceptorIoProcessor-0.0:( > flvPlayer.debug ) giveMovie; found 7 > [DEBUG] 2007-02-05 23:02:40,621 SocketAcceptorIoProcessor-0.0:( > flvPlayer.debug ) 512 -- .flv > [DEBUG] 2007-02-05 23:02:40,622 SocketAcceptorIoProcessor-0.0:( > flvPlayer.debug ) found: 512 > [DEBUG] 2007-02-05 23:02:40,622 SocketAcceptorIoProcessor-0.0:( > flvPlayer.debug ) 1024 -- .flv > [DEBUG] 2007-02-05 23:02:40,622 SocketAcceptorIoProcessor-0.0:( > flvPlayer.debug ) found: 1024 > [DEBUG] 2007-02-05 23:02:40,622 SocketAcceptorIoProcessor-0.0:( > flvPlayer.debug ) 33 -- .flv > [DEBUG] 2007-02-05 23:02:40,622 SocketAcceptorIoProcessor-0.0:( > flvPlayer.debug ) found: 33 > [DEBUG] 2007-02-05 23:02:40,622 SocketAcceptorIoProcessor-0.0:( > flvPlayer.debug ) 56 -- .flv > [DEBUG] 2007-02-05 23:02:40,623 SocketAcceptorIoProcessor-0.0:( > flvPlayer.debug ) found: 56 > [DEBUG] 2007-02-05 23:02:40,623 SocketAcceptorIoProcessor-0.0:( > flvPlayer.debug ) 256 -- .flv > [DEBUG] 2007-02-05 23:02:40,623 SocketAcceptorIoProcessor-0.0:( > flvPlayer.debug ) found: 256 > [DEBUG] 2007-02-05 23:02:40,623 SocketAcceptorIoProcessor-0.0:( > flvPlayer.debug ) 128 -- .flv > [DEBUG] 2007-02-05 23:02:40,623 SocketAcceptorIoProcessor-0.0:( > flvPlayer.debug ) found: 128 > [DEBUG] 2007-02-05 23:02:40,624 SocketAcceptorIoProcessor-0.0:( > flvPlayer.debug ) 64 -- .flv > [DEBUG] 2007-02-05 23:02:40,624 SocketAcceptorIoProcessor-0.0:( > flvPlayer.debug ) found: 64 > [DEBUG] 2007-02-05 23:02:40,760 SocketAcceptorIoProcessor-0.0:( > Application.debug ) Success, APPconnect from /62.45.13.69:1151 > [ERROR] 2007-02-05 23:02:40,764 SocketAcceptorIoProcessor-0.0:( > FLVReader.error ) Check for KeyFramesCache > [DEBUG] 2007-02-05 23:02:40,808 accessCheckerThread:( > accessChecker.debug ) accessChecker run > [DEBUG] 2007-02-05 23:02:40,816 accessCheckerThread:( > ipAccessChecker.debug ) ipAccessChecker run > [DEBUG] 2007-02-05 23:02:40,992 Thread-25:( messageFetcher.debug ) > Fetching message > [ERROR] 2007-02-05 23:02:42,046 SocketAcceptorIoProcessor-0.0:( > FLVReader.error ) Loaded KeyFramesCache for file > /data/fcs/red5/_webapps/1euro50/streams/shar > [DEBUG] 2007-02-05 23:02:42,047 SocketAcceptorIoProcessor-0.0:( > flvPlayer.debug ) APPdisconnect. 81.68.67.83 > [DEBUG] 2007-02-05 23:02:43,577 SocketAcceptorIoProcessor-0.0:( > Application.debug ) giveLastMessage > [DEBUG] 2007-02-05 23:02:43,605 SocketAcceptorIoProcessor-0.0:( > Application.debug ) Success, APPconnect from /82.192.92.180:55136 > [DEBUG] 2007-02-05 23:02:43,624 SocketAcceptorIoProcessor-0.0:( > Application.debug ) giveLastMessage > [DEBUG] 2007-02-05 23:02:43,625 SocketAcceptorIoProcessor-0.0:( > Application.debug ) Success, APPconnect from /82.74.68.183:3902 > [DEBUG] 2007-02-05 23:02:43,627 SocketAcceptorIoProcessor-0.0:( > Application.debug ) Success, APPconnect from /212.187.62.65:3287 > [DEBUG] 2007-02-05 23:02:43,628 SocketAcceptorIoProcessor-0.0:( > Application.debug ) Success, APPconnect from /84.28.208.229:2588 > [DEBUG] 2007-02-05 23:02:43,636 SocketAcceptorIoProcessor-0.0:( > Application.debug ) Success, APPconnect from /84.26.48.12:1542 > [DEBUG] 2007-02-05 23:02:43,649 SocketAcceptorIoProcessor-0.0:( > Application.debug ) Success, APPconnect from /80.126.13.14:49991 > [DEBUG] 2007-02-05 23:02:43,651 SocketAcceptorIoProcessor-0.0:( > Application.debug ) giveLastMessage > > The first lines (flvPlayer.debug) are from my main application > handler. > The 'error' line (Check for KeyFramesCache) is patched by me in the > Red5 > FLVReader class, as far as i know, the same call serves the file. > Please > notice all debug calls come from the same thread > "SocketAcceptorIoProcessor-0.0", even the "Application.debug" lines > with > "giveLastMessage" and the "APPconnect" messages, they're from a > totally > different application running on the same server. > > I think the 'freezing' problem is caused by the seek feature. Can it > "hold" a thread for a while? It consumes a lot of CPU time (which is > obvious though) but on a multiprocessor machine, the application > runs on > only 1 processor..... So all other calls/buffering-routines stall > when a > seek is performed, and seeking in a 300MB+ FLV file could take a > while I > think :) > > Can it also be a threading issue? > I already played with the configuration files, changed the max threads > variables, even tried switching from Jetty to TomCat, but it makes no > difference. > In debugmode I see 2 SocketAcceptor processes but in both (production > and develop) environments all debug messages come from > "SocketAcceptorIoProcessor-0.0"; for all active applications; for all > connected clients. > > How can I take advantage of a multiprocessor system? > Am I doing something wrong? > > Kind regards, > > Martin Schipper > > > _______________________________________________ > Red5 mailing list > [email protected] > http://osflash.org/mailman/listinfo/red5_osflash.org _______________________________________________ Red5 mailing list [email protected] http://osflash.org/mailman/listinfo/red5_osflash.org
