JDK 8 RFR 8010371: getaddrinfo can fail with EAI_SYSTEM/EAGAIN, causes UnknownHostException to be thrown

[Dmitry Samersoff]

Chris,

I'm not sure immediate native retry make sence here because tipically
EAGAIN of getaddrinfo caused by network failure, like unreachable
nameserver. (see my previous letter)

-Dmitry

On 2013-10-02 23:53, Chris Hegarty wrote:
> On 10/02/2013 08:40 PM, Brian Burkhalter wrote:
>> ....
>> So, how about this approach:
>>
>> 1) If the error is EAI_AGAIN / EIA_SYSTEM+EAGAIN / WSATRY_AGAIN then
>> do one immediate native retry.
>> 2) If the retry fails with the same error, then throw a UHE with a
>> specific message or cause.
> 
> Sounds good to me.
> 
>> Questions:
>>
>> A) Would it be better to do the retry in the Java layer, perhaps with
>> a very short wait?
> 
> native, without any wait, should be sufficient.
> 
>> B) Should the message or cause in #2 be explicitly document in the
>> javadoc?
> 
> I don't think it is necessary for this to be documented. It is more
> informational.
> 
> -Chris.


-- 
Dmitry Samersoff
Oracle Java development team, Saint Petersburg, Russia
* I would love to change the world, but they won't give me the sources.