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From Aaron McCurry <amccu...@gmail.com>
Subject Re: tapplicationexception out of sequence response?
Date Tue, 17 Dec 2013 22:37:32 GMT
I'm wondering if I can somehow put some tracking code in the client to
figure out what's going on.  And have it be able to be enabled and disabled
(for when we figure out what's going on).

I will try and write a unit test tonight to reproduce.

Aaron


On Tue, Dec 17, 2013 at 4:19 PM, Tim Williams <williamstw@gmail.com> wrote:

> I think multiple queries does the trick.  Here's an evil scenario that
> can produce it if done a couple times.
>
> 1) Run a cruelly long query (e.g. * )
> 2) Run, several non-trivial, but not evil queries over and over.
> 3) One of the non-trivial queries fails with the "out of sequence" error.
> 4) Then, Mr. Cruel Query fails with a "TTransportException:
> j.n.SocketTimeoutException: Read Timed Out"
>
> I think the corpus has to be reasonably large for it to be slow enough to
> occur.
>
> Thanks,
> --tim
>
> On Tue, Dec 17, 2013 at 3:48 PM, Aaron McCurry <amccurry@gmail.com> wrote:
> > So it's during a query call (+ some other call)?
> >
> >
> > On Tue, Dec 17, 2013 at 3:38 PM, Tim Williams <williamstw@gmail.com>
> wrote:
> >
> >> Appears to be between controller and shards, with the exception on the
> >> controller side...
> >>
> >>
>  BlurResultIterableClient.performSearch(BlurResultIterableClient.java:77)
> >> ...
> >> BlurControllerServer.call(BlurControllerServer.java:396)
> >> ...
> >>
> >> That's where it heads into generated code territory. The whole trace
> >> isn't easily pastable for me so let me know if more context is
> >> necessary...
> >>
> >> Thanks,
> >> --tim
> >>
> >> On Tue, Dec 17, 2013 at 3:08 PM, Aaron McCurry <amccurry@gmail.com>
> wrote:
> >> > Tim you are right this only occurs when a thrift client has more then
> one
> >> > thread using it.  Can you isolate where the error is occurring?
>  Meaning
> >> is
> >> > it between the controller and shard or between your client and the
> >> > controller?  Because if it's between your client and the controller
> it's
> >> > likely something going on in your application logic.  If not, then
> >> there's
> >> > a bug somewhere in the client use/reuse.
> >> >
> >> > Aaron
> >> >
> >> >
> >> > On Tue, Dec 17, 2013 at 2:54 PM, Garrett Barton <
> >> garrett.barton@gmail.com>wrote:
> >> >
> >> >> Used to see that with Blur when I did not set a id on the query.
>  Don't
> >> >> know if Aaron sets some unique identifier on calls like schema
> though...
> >> >>
> >> >>
> >> >> On Tue, Dec 17, 2013 at 2:46 PM, Tim Williams <williamstw@gmail.com>
> >> >> wrote:
> >> >>
> >> >> > I'm periodically seeing this on various calls - both query and
> >> >> > seemingly harmless ones (e.g. schema).  Google hints that it
> happens
> >> >> > when the client is used across threads.  Anyone see it before?
>  Know
> >> >> > how to solve it?
> >> >> >
> >> >> > Thanks,
> >> >> > --tim
> >> >> >
> >> >>
> >>
>

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