On 01/15/2010 02:46 PM, Oleksiy Stashok wrote:
>> no, even don't know about them. Is there a documentation available
>> (except source code)?
> It's one of the approaches to process I/O events on NIO Connection. By
> default it's disabled, but from exception stacktrace you sent - it
> looks like it's enabled in your testcase.
> You can check it by calling controller.useLeaderFollowerStrategy().
> How often do you this exception? Is it reproducible?
Since restart haven't seen it yet ( > 24h ). Unfortunately, I cant say
how many requsts
was processed (probably have to build a JMX bean). But it's a NFS server
mounted on
~1000 clients.
Tigran.
>
> Alexey.
>
>>
>> On 01/15/2010 01:15 PM, Oleksiy Stashok wrote:
>>> Tigran,
>>>
>>> have you configured controller to use Leader/Follower feature?
>>>
>>> Alexey.
>>>
>>> On Jan 15, 2010, at 13:00 , Tigran Mkrtchyan wrote:
>>>
>>>> Hi Alexey,
>>>>
>>>> On 01/15/2010 12:04 PM, Oleksiy Stashok wrote:
>>>>> Hi Tigran,
>>>>>
>>>>> I'd probably need more details on that.
>>>>> Do you know what was the reason of OOM?
>>>>
>>>> I hope wrong config option. It looks like we need 3 GB of memory
>>>> while only 1GB was configured.
>>>> Since config change looks more stable.
>>>>
>>>>> ConcurrentModificationException exception occurred after you got
>>>>> OOM during server stopping?
>>>> ConcurrentModificationException occurred after OOM. There was some
>>>> others as well. In addition
>>>> UDP listener was gone and probably clients as well:
>>>>
>>>> java.nio.channels.ClosedChannelException
>>>> at
>>>> sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:107)
>>>> at
>>>> sun.nio.ch.DatagramChannelImpl.send(DatagramChannelImpl.java:216)
>>>> at
>>>> com.sun.grizzly.util.OutputWriter.flushChannel(OutputWriter.java:295)
>>>> at
>>>> com.sun.grizzly.util.OutputWriter.flushChannel(OutputWriter.java:256)
>>>>
>>>> But OOM was the first one.
>>>>
>>>> Regards,
>>>> Tigran.
>>>>
>>>>>
>>>>> Thanks.
>>>>>
>>>>> WBR,
>>>>> Alexey.
>>>>>
>>>>> On Jan 15, 2010, at 9:17 , Tigran Mkrtchyan wrote:
>>>>>
>>>>>>
>>>>>> Hi,
>>>>>>
>>>>>>
>>>>>> java.util.ConcurrentModificationException
>>>>>> at java.util.HashMap$HashIterator.nextEntry(HashMap.java:793)
>>>>>> at java.util.HashMap$KeyIterator.next(HashMap.java:828)
>>>>>> at
>>>>>> com.sun.grizzly.SelectorHandlerRunner.handleSelectedKeys(SelectorHandlerRunner.java:255)
>>>>>>
>>>>>> at
>>>>>> com.sun.grizzly.SelectorHandlerRunner.continueSelect(SelectorHandlerRunner.java:154)
>>>>>>
>>>>>> at
>>>>>> com.sun.grizzly.SelectorHandlerRunner.run(SelectorHandlerRunner.java:114)
>>>>>>
>>>>>> at
>>>>>> com.sun.grizzly.util.FixedThreadPool$BasicWorker.dowork(FixedThreadPool.java:379)
>>>>>>
>>>>>> at
>>>>>> com.sun.grizzly.util.FixedThreadPool$BasicWorker.run(FixedThreadPool.java:360)
>>>>>>
>>>>>> at java.lang.Thread.run(Thread.java:619)
>>>>>>
>>>>>>
>>>>>> This is grizzly 1.9.19-SNAPSHOT. The exception popup after we got
>>>>>> out of memory exception.
>>>>>>
>>>>>> Regards,
>>>>>> Tigran.
>>>>>>
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>