Dump looks fine, but one thread is suspicious [1].
Can you pls. try to patch your GF with the latest Grizzly 1.0.33-b and
specify additional jvm-option in the GF domain.xml [2]?
WBR,
Alexey.
[1]
"SelectorReaderThread-8080" prio=10 tid=0x00002aac1cd49800 nid=0x6c03
runnable [0x00000000452de000]
java.lang.Thread.State: RUNNABLE
at sun.nio.ch.FileDispatcher.preClose0(Native Method)
at sun.nio.ch.SocketDispatcher.preClose(SocketDispatcher.java:41)
at
sun
.nio
.ch
.SocketChannelImpl.implCloseSelectableChannel(SocketChannelImpl.java:
684)
- locked <0x00002aaaaeb3dfc8> (a java.lang.Object)
at
java
.nio
.channels
.spi
.AbstractSelectableChannel
.implCloseChannel(AbstractSelectableChannel.java:201)
at
java
.nio
.channels
.spi
.AbstractInterruptibleChannel.close(AbstractInterruptibleChannel.java:
97)
- locked <0x00002aaaaeb3df78> (a java.lang.Object)
at sun.nio.ch.SocketAdaptor.close(SocketAdaptor.java:352)
at
com
.sun
.enterprise
.web.connector.grizzly.SelectorThread.cancelKey(SelectorThread.java:
1632)
at com.sun.enterprise.web.connector.grizzly.SelectorThread.expireIdleKeys
(SelectorThread.java:1491)
at
com
.sun
.enterprise
.web.connector.grizzly.SelectorThread.doSelect(SelectorThread.java:1426)
at com.sun.enterprise.web.connector.grizzly.SelectorReadThread.startEndpoint
(SelectorReadThread.java:121)
at
com
.sun
.enterprise
.web.connector.grizzly.SelectorThread.run(SelectorThread.java:1250)
[2] <jvm-options>-Dcom.sun.enterprise.web.connector.grizzly.linger=-1</
jvm-options>
On May 16, 2010, at 16:41 , glassfish_at_javadesktop.org wrote:
> We have a Glassfish 2.1.1 running on Java 1.6 u19 64 bit on CentOS
> 5.4.
> Several times a day we experience following issue: the request is
> sent to server but no response is received. This continues usually
> for no more than 2 minutes, then everything works as usual.
>
> I've used Wireshark sniffer on the client side to check what is sent
> on the network: after the connection is established, request headers
> are sent, then after connection timeout on client hits, connection
> is gracefully closed.
>
> Also I've monitored server with VisualVM during these times and it
> showed that request threads were idling at that moment.
>
> This happens even when static content (i.e. index.html) is requested.
>
> I've made a script that requests index.html twice a minute and
> creates a JVM stack dump with jstack if request fails. One of these
> dumps is attached.
>
> If anyone have ideas on what's causing it, please tell me.
> [Message sent by forum member 'n0rd']
>
> http://forums.java.net/jive/thread.jspa?messageID=470041
>
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