Hi, I'll provide more clues. 1. My server vm arguments: -server -Xms128m -Xmx512m -Xss128k -XX:+AggressiveOpts -XX:+UseParallelGC -XX:+UseBiasedLocking -XX:NewSize=64m -XX:+HeapDumpOnOutOfMemoryError 2. I'm using the WriteThrottleFilter to prevent the OutOfMemory problem and I got some informations after server deadClass: class org.apache.mina.filter.traffic.WriteFloodException<http://img.shanliao.com:7000/class/0x4573d880> Instance data members: backtrace (L) : [Ljava.lang.Object;@0x538e7460 (20 bytes)<http://img.shanliao.com:7000/object/0x538e7460> cause (L) : [EMAIL PROTECTED] (28 bytes) <http://img.shanliao.com:7000/object/0x538e7440> detailMessage (L) : Write requests flooded - session: 178 / 512 msgs, 42000 / 131072 bytes, service: 131072 / 131072 msgs, 37029706 / 67108864 bytes, global: 131072 / 262144 msgs, 37029706 / 131657728 bytes. (24 bytes)<http://img.shanliao.com:7000/object/0x538e7650> requests (L) : [EMAIL PROTECTED] (16 bytes) <http://img.shanliao.com:7000/object/0x538e77f0> stackTrace (L) : <null> References to this object: [EMAIL PROTECTED] (28 bytes) <http://img.shanliao.com:7000/object/0x538e7440> : field cause [EMAIL PROTECTED] (33 bytes)<http://img.shanliao.com:7000/object/0x538e7840>: field result [EMAIL PROTECTED] (24 bytes)<http://img.shanliao.com:7000/object/0x538e7428>: field parameter
On Wed, May 28, 2008 at 11:43 PM, Mark Webb <[EMAIL PROTECTED]> wrote: > I had noticed some deadlock conditions as well, but after you > mentioned you ran into an out of memory error I got confused. I will > take a look at this again when I get a free minute. > > On Wed, May 28, 2008 at 11:23 AM, Owen Gu <[EMAIL PROTECTED]> wrote: > > Please check the thread dump, it seems the "NioProcessor-2" thread was > > blocked and lock the object 0x49958e38, and the other NioProcessor were > > waiting for the object 0x49958e38, I think this caused deadlock. But > after I > > used jstack dump the thread one minutes, I saw the system alert out of > > memory, So I'm not sure what caused my server dead, please help me > analyse > > the thread dump, thanks. > > > > On Wed, May 28, 2008 at 10:58 PM, Mark Webb <[EMAIL PROTECTED]> > wrote: > > > >> is the system deadlocking or running out of memory? > >> > >> > >> On Wed, May 28, 2008 at 10:32 AM, Owen Gu <[EMAIL PROTECTED]> wrote: > >> > Hi, > >> > Our chat server is deveolped with mina-2.0 m1 version, we got a very > >> > emergent problem, the chat server dead every week. > >> > The attachment contains thread dump that was generated when we made > the > >> > server dead by some testing tools, I think the dead lock or out of > memory > >> > problem caused the server down. > >> > Please help me to solove this problem, it's very emergent, thank you. > >> > > >> > > >> > > >> > > >
