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Darin,
On 11/3/17 5:17 PM, dbol...@dsginc.biz wrote:
> From: Christopher Schultz To:
> users@tomcat.apache.org Date: 11/02/2017 02:28 PM Subject:
> Re: TomCat 8.5.23 application not responding
>
>
>
> Darin,
>
> On 11/2/17 12:55 PM, dbol...@dsginc.biz wrote:
>> I have a TomCat 8.5.23 service running on a Windows 2008 R2. It
>> is currently running a third party web commerce application. It
>> will run great until randomly one day the application will stop
>> responding. When you try to go to the application URL it sits
>> and spins. I look at the catalina log and found the below errors
>> at the time it stop responding. Is this a tomcat configuration
>> issue or application related.
>
>> I see three specific warning/severe messages in Tomcat.
>
>> Error one: 02-Nov-2017 10:03:23.787 WARNING
>> [http-nio-9080-exec-402]
>> com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.getForComponent
>>
>>
Unable to find component with ID searchPattern in view.
>
>> Then right after there is a severe message error 2:
>
>> 02-Nov-2017 10:03:23.896 SEVERE [http-nio-9080-exec-455]
>> org.restlet.engine.http.adapter.ServerAdapter.commit An
>> exception occured writing the response entity
>> org.apache.catalina.connector.ClientAbortException:
>> java.io.IOException: An established connection was aborted by
>> the software in your host machine
>
>> Then the warning messages constant all the way down until this
>> all the way down until we had to reboot the service because of
>> no response.
>
>> 02-Nov-2017 10:03:23.896 WARNING [http-nio-9080-exec-455]
>> org.restlet.engine.http.HttpServerHelper.handle Error while
>> handling an HTTP server call: 02-Nov-2017 10:03:23.896 INFO
>> [http-nio-9080-exec-455]
>> org.restlet.engine.http.HttpServerHelper.handle Error while
>> handling an HTTP server call java.lang.IllegalStateException:
>> Cannot call sendError() after the response has been committed
>
> Can you take some thread dumps to show what the Tomcat threads are
> doing? One thread dump will probably be very long, but go ahead
> and post the whole thing to the list.
>
> -chris
>
> -
>
>
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>
> I have been unable to post the thread dump because of size no
> matter how much I send under the 1 MB rule. Is there another way I
> can send it to you. Thanks.
>
>
> I do see a lot of Blocked messages, see example. I was not able to
> post the whole dump.
>
>
> "http-nio-9080-exec-305" #3888 daemon prio=5 os_prio=0
> tid=0x1f445000 nid=0x230 waiting for monitor entry
> [0x4341d000] java.lang.Thread.State: BLOCKED (on object
> monitor) at
> com.mincron.api.restlet.dm.ProductDM.getCategoryItemList(Unknown
> Source) - waiting to lock <0x000696269dc0> (a java.lang.Class
> for com.mincron.api.restlet.dm.ProductDM) at
> com.mincron.api.restlet.resource.CategoryItemListResource.retrieve(Unk
nown
> Source)
Your own code is blocking on something -- whatever a ProductDM is. If
you recompile your code with "debug" symbols enabled, you can see line
numbers and you'll be able to find out exactly what's going on.
- -chris
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