Mailing-List: contact dev-help@htrace.incubator.apache.org; run by ezmlm
Precedence: bulk
Reply-To: dev@htrace.incubator.apache.org
Received-SPF: pass (nike.apache.org: domain of rarecactus@gmail.com designates
 74.125.82.51 as permitted sender)
MIME-Version: 1.0
Sender: rarecactus@gmail.com
In-Reply-To: 
 <30481_1433446589_t54JaRb2034378_----To------C.CTo$f3419a38-8d3c-43eb-b24f-b5d49e3ad8ac@alibaba-inc.com>
References: 
 <30481_1433446589_t54JaRb2034378_----To------C.CTo$f3419a38-8d3c-43eb-b24f-b5d49e3ad8ac@alibaba-inc.com>
Date: Mon, 8 Jun 2015 19:25:06 -0700
Message-ID: 
 <CA+qbEUPoCj0CNzqU_aZG-Rtdpk+Lr_ZUP9=Xg1c-vEY=oL-bYg@mail.gmail.com>
Subject: Re: How to deal with "batch" trace?
From: Colin McCabe <cmccabe@alumni.cmu.edu>
To: dev@htrace.incubator.apache.org,
	=?UTF-8?B?5p2o5YWL54m5KOmygeWwvCk=?= <kete.yangkt@alibaba-inc.com>
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

Hi Kete,

Thanks for looking at HTrace!

I'm not sure I understand the question completely.  What information
would you like to trace?

HTrace maintains parent/child relationships, but a child can have
multiple parents.  This may be helpful in the case where you have a
span (like flushing a batch) that is logically the child of multiple
other spans.

best,
Colin


On Thu, Jun 4, 2015 at 2:10 AM, =E6=9D=A8=E5=85=8B=E7=89=B9(=E9=B2=81=E5=B0=
=BC) <kete.yangkt@alibaba-inc.com> wrote:
> Hi, all:   I have a situation when tring to use htrace. Say I have 2 thre=
ads, thread-1 takes data and put it into a queue one by one. Since I want t=
o trace all these data so i create a Trace&Span for each data and put it in=
to queue alone with the data. Thread-2 will cosume the queue periodically, =
each time it will take a small batch data from the queue, and process these=
 data together. How do htrace treat this situation if I want all the data w=
ill have a span representing the "process time" even if this "process time"=
 is a span for the batch. Any idea? Thanks a lot.
> YoursKete Yang