2010/4/13 Christopher Schultz <ch...@christopherschultz.net>:
> Hash: SHA1
> Jeff,
> Okay, you're running into the limits of my knowledge of the APR
> connector's internals.
> On 4/13/2010 1:24 PM, Jeffrey Janner wrote:
>> "http-" daemon prio=6 tid=0x6425c400 nid=0xb6c4 in 
>> Object.wait() [0x65d7f000]
>>    java.lang.Thread.State: WAITING (on object monitor)
>>       at java.lang.Object.wait(Native Method)
>>       - waiting on <0x0b8bafd8> (a 
>> org.apache.tomcat.util.net.AprEndpoint$WorkerStack)
>>       at java.lang.Object.wait(Object.java:485)
>>       at 
>> org.apache.tomcat.util.net.AprEndpoint.getWorkerThread(AprEndpoint.java:924)
>>       - locked <0x0b8bafd8> (a 
>> org.apache.tomcat.util.net.AprEndpoint$WorkerStack)
>>       at 
>> org.apache.tomcat.util.net.AprEndpoint$Acceptor.run(AprEndpoint.java:997)
>>       at java.lang.Thread.run(Thread.java:619)
> This is the "acceptor" thread which basically accepts all the incoming
> requests and assigns them to worker threads: it's just a traffic cop.
> This thread looks like it's stuck waiting for an available worker thread
> (AprEndpoint.getWorkerThread) so it looks like something is definitely
> wrong, here.

If it is stuck there, it will not accept any more incoming requests.

It might be that you bumped into BZ 48843

A patch for it is already available, proposed, and has enough votes,
so it will be applied shortly. That will be 5.5.30, though.

> Unfortunately for you, you'll need someone like Filip who knows
> everything about these Connectors to comment.
>>     <Connector address="" port="443" maxHttpHeaderSize="8192"
>>                maxThreads="150" minSpareThreads="5" maxSpareThreads="75"
>>                enableLookups="false" acceptCount="100"
> It looks like a thread called "http-" exists, which
> suggests that all maxThreads have been allocated, though they really do
> all look idle to me. Hmm.
> Yeah, wait for Filip. :)

Best regards,
Konstantin Kolinko

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