Mailing-List: contact user-help@hive.apache.org; run by ezmlm
Precedence: bulk
Reply-To: user@hive.apache.org
Date: Mon, 5 Dec 2016 00:13:20 +0000 (UTC)
From: Robert Grandl <rgrandl@yahoo.com>
Reply-To: Robert Grandl <rgrandl@yahoo.com>
To: User <user@hive.apache.org>, "user@tez.apache.org" <user@tez.apache.org>
Message-ID: <334899319.6347127.1480896800761@mail.yahoo.com>
Subject: Trace Key-Value pairs
MIME-Version: 1.0
Content-Type: multipart/alternative;
	boundary="----=_Part_6347126_1067634847.1480896800759"
References: <334899319.6347127.1480896800761.ref@mail.yahoo.com>
archived-at: Mon, 05 Dec 2016 00:14:32 -0000

------=_Part_6347126_1067634847.1480896800759
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

Hi guys,
I am running Hive atop Tez and run several TPC-DS / TPC-H queries. I am try=
ing to print the Key/Value pairs received as input by each vertex and gener=
ated as output accordingly.=20

However, looking at Hive / Tez code, it seems they are converted to Object =
type and use their serialized forms along. I would like to print the origin=
al content in <Key, Value> pairs both when generated and received by a vert=
ex (just for the purpose of=C2=A0 understanding).

Could you please give me some hints on how I can do that?
Thank you,Robert


------=_Part_6347126_1067634847.1480896800759
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

<html><head></head><body><div style=3D"color:#000; background-color:#fff; f=
ont-family:times new roman, new york, times, serif;font-size:13px"><div id=
=3D"yui_3_16_0_ym19_1_1480895367421_9105">Hi guys,</div><div><br></div><div=
 id=3D"yui_3_16_0_ym19_1_1480895367421_9106" dir=3D"ltr">I am running Hive =
atop Tez and run several TPC-DS / TPC-H queries. I am trying to print the K=
ey/Value pairs received as input by each vertex and generated as output acc=
ordingly. <br></div><div id=3D"yui_3_16_0_ym19_1_1480895367421_9107" dir=3D=
"ltr"><br></div><div id=3D"yui_3_16_0_ym19_1_1480895367421_9113" dir=3D"ltr=
">However, looking at Hive / Tez code, it seems they are converted to Objec=
t type and use their serialized forms along. I would like to print the orig=
inal content in &lt;Key, Value&gt; pairs both when generated and received b=
y a vertex (just for the purpose of&nbsp; understanding).<br></div><div id=
=3D"yui_3_16_0_ym19_1_1480895367421_9108" dir=3D"ltr"><br></div><div id=3D"=
yui_3_16_0_ym19_1_1480895367421_9109" dir=3D"ltr">Could you please give me =
some hints on how I can do that?</div><div id=3D"yui_3_16_0_ym19_1_14808953=
67421_9110" dir=3D"ltr"><br></div><div id=3D"yui_3_16_0_ym19_1_148089536742=
1_9111" dir=3D"ltr">Thank you,</div><div id=3D"yui_3_16_0_ym19_1_1480895367=
421_9112" dir=3D"ltr">Robert<br></div><div id=3D"yui_3_16_0_ym19_1_14808953=
67421_7314"><br></div></div></body></html>
------=_Part_6347126_1067634847.1480896800759--