Hello Peter,
which OS are you using?
WBR,
Alexey.
Peter Speck wrote:
> Hi,
>
> I have a problem using Grizzly 1.6.0: the server becomes very slow at
> responding after a few seconds of load. I launch the server using:
>
> SelectorThread st = new SelectorThread();
> st.setPort(80);
> st.setAdapter(new ProxyAdapter());
> st.setCompression("off");
> st.setDisplayConfiguration(true);
> st.setFileCacheIsEnabled(false);
> st.setLargeFileCacheEnabled(false);
> st.setBufferResponse(false);
> st.setKaTimeout(20);
> st.setMaxThreads(50);
> st.setBufferSize(32768);
> st.setMaxKeepAliveRequests(8196);
> st.initEndpoint();
> st.startEndpoint();
>
> (the server is an http proxy which forwards requests to other http
> servers).
>
> I made a thread dump when the server didn't respond. 4 threads are in
> com.sun.grizzly.tcp.Response.finish, and the rest are like this:
>
> "httpHttpWorkerThread-80-49" daemon prio=10 tid=0x0052c750
> nid=0x18bd600 in Object.wait() [0xf2b46000..0xf2b46ab0]
> at java.lang.Object.wait(Native Method)
> - waiting on <0x24cdadc0> (a java.util.Stack)
> at
> com.sun.grizzly.util.SelectorFactory.getSelector(SelectorFactory.java:84)
> - locked <0x24cdadc0> (a java.util.Stack)
> at
> com.sun.grizzly.util.ByteBufferInputStream.doClearRead(ByteBufferInputStream.java:306)
>
> at
> com.sun.grizzly.util.ByteBufferInputStream.doRead(ByteBufferInputStream.java:259)
>
> at
> com.sun.grizzly.util.ByteBufferInputStream.read(ByteBufferInputStream.java:185)
>
> at
> com.sun.grizzly.tcp.http11.InternalInputBuffer.fill(InternalInputBuffer.java:708)
>
> at
> com.sun.grizzly.tcp.http11.InternalInputBuffer.parseRequestLine(InternalInputBuffer.java:382)
>
> at
> com.sun.grizzly.http.DefaultProcessorTask.parseRequest(DefaultProcessorTask.java:645)
>
> at
> com.sun.grizzly.http.DefaultProcessorTask.doProcess(DefaultProcessorTask.java:527)
>
> at
> com.sun.grizzly.http.DefaultProcessorTask.process(DefaultProcessorTask.java:773)
>
> at
> com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:133)
>
> at
> com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:89)
>
> at
> com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:67)
>
> at
> com.sun.grizzly.http.SelectorThread$2.execute(SelectorThread.java:676)
> at com.sun.grizzly.Context.call(Context.java:266)
> at
> com.sun.grizzly.util.WorkerThreadImpl.run(WorkerThreadImpl.java:179)
>
> Is this busy-waiting for keep-alive, or is it something else?
>
>
>
> The main grizzly thread:
> "GriProxy-T-80:127.0.0.1:4000" prio=5 tid=0x0050d830 nid=0x1877a00
> runnable [0xf0d0a000..0xf0d0aab0]
> at sun.nio.ch.KQueueArrayWrapper.kevent0(Native Method)
> at sun.nio.ch.KQueueArrayWrapper.poll(KQueueArrayWrapper.java:118)
> at sun.nio.ch.KQueueSelectorImpl.doSelect(KQueueSelectorImpl.java:69)
> at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:69)
> - locked <0x25e331d0> (a sun.nio.ch.Util$1)
> - locked <0x25e331e0> (a java.util.Collections$UnmodifiableSet)
> - locked <0x25e33188> (a sun.nio.ch.KQueueSelectorImpl)
> at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:80)
> at
> com.sun.grizzly.TCPSelectorHandler.select(TCPSelectorHandler.java:344)
> at com.sun.grizzly.Controller.doSelect(Controller.java:280)
> at com.sun.grizzly.Controller.start(Controller.java:788)
> - locked <0x24e18320> (a java.lang.Object)
> at
> com.sun.grizzly.http.SelectorThread.startListener(SelectorThread.java:1080)
>
> - locked <0x24de28b8> (a [Ljava.lang.Object;)
> at
> com.sun.grizzly.http.SelectorThread.startEndpoint(SelectorThread.java:1052)
>
> at
> dk.vitality.util.socketProxy.server.grizzly.GriProxy.main(GriProxy.java:96)
>
> at
> dk.vitality.util.socketProxy.server.grizzly.GriProxy$1.run(GriProxy.java:61)
>
> at java.lang.Thread.run(Thread.java:613)
>
>
> The adapter is:
>
> class ProxyAdapter implements Adapter
> {
> public void service(Request request, Response response) throws
> Exception
> {
> request.action(ActionCode.ACTION_REQ_HOST_ADDR_ATTRIBUTE, null);
> new RequestHandler(GriProxy.this, request, response);
> }
>
> public void afterService(Request request, Response response) throws
> Exception
> {
> request.recycle();
> response.recycle();
> }
>
> public void fireAdapterEvent(String string, Object object)
> {
> }
> }
>
>
> ----
> - Peter Speck
>
>
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