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From Dmitriy Setrakyan <dsetrak...@apache.org>
Subject Re: Semaphore blocking on tryAcquire() while holding a cache-lock
Date Fri, 11 Mar 2016 18:58:53 GMT
On Fri, Mar 11, 2016 at 10:20 AM, Christos Erotocritou <
christos@gridgain.com> wrote:

> We already have a basic FAQ page which I am populating:
> http://apacheignite.gridgain.org/docs/faq <
> http://apacheignite.gridgain.org/docs/faq>
>
> Please feel free to add to it.
>

Thanks Christos! Here is the correct link (your link is just an alias):
https://apacheignite.readme.io/docs/faq

I think we should add a TOC up top as well, whenever you are done.


> Not sure if we want to migrate this to the wiki?
>

I don’t think we need to.


>
> Christos
>
> > On 11 Mar 2016, at 17:35, Dmitriy Setrakyan <dsetrakyan@apache.org>
> wrote:
> >
> > +1 on FAQ
> >
> > Can we just create a page, and start populating it?
> >
> > D.
> >
> > On Fri, Mar 11, 2016 at 3:25 AM, Anton Vinogradov <
> avinogradov@gridgain.com>
> > wrote:
> >
> >> Yakov,
> >>
> >> I've answered.
> >> Seems we have to have special FAQ section at Ignite wiki to publish same
> >> things.
> >>
> >> On Sun, Mar 6, 2016 at 12:21 PM, Yakov Zhdanov <yzhdanov@apache.org>
> >> wrote:
> >>
> >>> Vlad and all (esp Val and Anton V.),
> >>>
> >>> I reviewed the PR. My comments are in the ticket.
> >>>
> >>> Anton V. there is a question regarding optimized-classnames.properties.
> >>> Can you please respond in ticket?
> >>>
> >>>
> >>> --Yakov
> >>>
> >>> 2016-02-29 16:00 GMT+06:00 Yakov Zhdanov <yzhdanov@apache.org>:
> >>>
> >>>> Vlad, that's great! I will take a look this week. Reassigning ticket
> to
> >>>> myself.
> >>>>
> >>>> --Yakov
> >>>>
> >>>> 2016-02-26 18:37 GMT+03:00 Vladisav Jelisavcic <vladisavj@gmail.com>:
> >>>>
> >>>>> Hi,
> >>>>>
> >>>>> i recently implemented distributed ReentrantLock - IGNITE-642,
> >>>>> i made a pull request, so hopefully this could be added to the next
> >>>>> release.
> >>>>>
> >>>>> Best regards,
> >>>>> Vladisav
> >>>>>
> >>>>> On Thu, Feb 18, 2016 at 10:49 AM, Alexey Goncharuk <
> >>>>> alexey.goncharuk@gmail.com> wrote:
> >>>>>
> >>>>>> Folks,
> >>>>>>
> >>>>>> The current implementation of IgniteCache.lock(key).lock() has
the
> >>>>> same
> >>>>>> semantics as the transactional locks - cache topology cannot
be
> >>>>> changed
> >>>>>> while there exists an ongoing transaction or an explicit lock
is
> >>>>> held. The
> >>>>>> restriction for transactions is quite fundamental, the lock()
issue
> >>>>> can be
> >>>>>> fixed if we re-implement locking the same way IgniteSemaphore
> >>>>> currently
> >>>>>> works.
> >>>>>>
> >>>>>> As for the "Failed to find semaphore with the given name" message,
> my
> >>>>> first
> >>>>>> guess is that DataStructures were configured with 1 backups
which
> led
> >>>>> to
> >>>>>> the data loss when two nodes were stopped. Mario, can you please
> >>>>> re-test
> >>>>>> your semaphore scenario with 2 backups configured for data
> structures?
> >>>>>> From my side, I can also take a look at the semaphore issue
when I'm
> >>>>> done
> >>>>>> with IGNITE-2610.
> >>>>>>
> >>>>>
> >>>>
> >>>>
> >>>
> >>
>
>

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