javac server: No port file values materialized. on AIX

[David Holmes]

On 20/01/2016 7:43 PM, Severin Gehwolf wrote:
> Hi,
>
> I'm doubtful this is an issue specific to AIX since I'm seing this now
> on a Linux box. See below.

It isn't specific to AIX. As Erik said earlier in the thread we see this 
occasionally on Solaris too.

David

>
> On Mon, 2016-01-18 at 15:39 +0100, Volker Simonis wrote:
>> On Mon, Jan 18, 2016 at 3:34 PM, Andreas Lundblad
>> <andreas.lundblad at oracle.com> wrote:
>>>>>> Interesting observation. The code for waiting for valid port file values
>>>>>> basically looks like
>>>>>>
>>>>>>       for (int i = 0; i < 10; i++) {
>>>>>>           checkPortFile();
>>>>>>           if (successful)
>>>>>>               break;
>>>>>>           sleep(500);
>>>>>>       }
>>>>>>
>>>>>> so the fact that it even reaches 6676 ms looks suspicious when it comes to
>>>>>> load.
>>>>>
>>>>>
>>>>> Why? Under load those sleep(500)'s might not return for much longer; and the
>>>>> whole things might be time preempted at any point for an extended period of
>>>>> time.
>>>
>>> What I meant was that the fact that the code takes 6676 ms to complete increases my suspicion about it being due to a load issue.
>
> FWIW, I'm seeing this issue now on the Zero builder:
> http://builder.classpath.org/jenkins/job/OpenJDK9_hs_rt_Zero/203/console
>
> The builder might be under load which could cause this, but
> nevertheless it's the first time I'm seeing this. Has the above code
> been introduced recently?
>
> Is there a bug I can CC myself to?
>
> Thanks,
> Severin
>