javac server: No port file values materialized. on AIX

[Thomas Stüfe]

Hi Andreas,

thanks! I will use this patch on my AIX builds. I will come back to you if
the error resurfaces.

Kind Regards, Thoams

On Sun, Jan 24, 2016 at 12:33 PM, Andreas Lundblad <
andreas.lundblad at oracle.com> wrote:

> On Mon, Jan 18, 2016 at 03:39:39PM +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.
> > >
> > >
> > >> What about putting another loop around this loop which prints a
> > >> warning to stdout (e.g. "..trying to connect to sjavac server since X
> > >> seconds") for another five or so times. We could also print the system
> > >> load [1] although I'm not sure it's worth it. On our AIX machines it
> > >> is often a network/NFS problem which causes long startup times of new
> > >> executables and this won't be observable by looking at the system load
> > >> (but it may at least give a hint').
> > >>
> > >> [1]
> http://docs.oracle.com/javase/6/docs/api/java/lang/management/OperatingSystemMXBean.html#getSystemLoadAverage%28%29
> > >
> > > I don't think a loop around the loop is necessary. The actual code
> (which is slightly different from the snippet I posted above) already
> prints a message between each attempt.
> > >
> > > I was thinking of just bumping the timeout from 5 seconds to, say, 60
> seconds. If it's a load issue, we should se something like "Port file
> values found after 9000 ms", in which case we know for sure that it was a
> premature timeout issue. If no port files materialize after >60 seconds, we
> can probably safely assume that the issue is due to something else.
> > >
> >
> > Sounds good. Let's try it.
>
> Patch has now been pushed [1].
>
> Please let me know if any of you still experience the "No portfile values
> materialized" problem.
>
> -- Andreas
>
> [1] http://hg.openjdk.java.net/jdk9/dev/langtools/rev/3e4edb085bf0
>