Konstantin Kolinko wrote:
> 2012/3/29 Osipov, Michael <[email protected]>:
>> Hi folks,
>>
>> I am trying to narrow down an exception which is happening
>> occasionally in certain spots of your code:
>>
>> SCHWERWIEGEND: Servlet.service() for servlet default threw exception
>> Java.net.SocketTimeoutException
>> at
>> org.apache.coyote.http11.InternalAprInputBuffer.fill(InternalAprInputBuffer.java:796)
>> ...
>>
>> The problematic spot in that file is:
>> if ((-nRead) == Status.ETIMEDOUT || (-nRead) == Status.TIMEUP) {
>> throw new
>> SocketTimeoutException(sm.getString("iib.failedread"))
>>
>> Not to mention that 'iib.failedread' does not exists in the
>> properties file, I cannot localize the failing point whether it's
>> the client who's resetting/closing the connection or is it
>> libtcnative?
>
>
> It says "timeout" and it occurs while reading, so I would say that the
> client is slow at delivering data (disappeared without closing the
> connection), so read operation times out.
>
> The native side (network.c in native/branches/1.1.x/native/src) just
> calls (tcn_nlayer_t)->recv, which has two different implementations,
> depending on whether ssl is used or not used (network.c vs
> sslnetwork.c).
>
>
> The timeout on the socket should be configurable (probably see
> AprEndpoint#setSocketOptions(..)), but I do not see specific mention
> of that option in the documentation.
>
> It is a bit strange that soTimeout in setSocketOptions() is multiplied
> by 1000. I'd expect the option to be in milliseconds, like documented
> options. I cannot say without digging further into the code -- maybe
> it is divided by 1000 somewhere else.
According to Http11AprProtocol.java#L68 the default socket timeout is set to 60
000 milliseconds.
The reson for x1000 is:
/**
* Setup socket timeout for the specified socket
* @param sock The socket to set up.
* @param t Value for the timeout in microseconds.
So 60 seconds of timeout should be enough?
Mike
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