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 <CAG1CohRq90_d0OmUUnvyJLESY=TcVSr8D9cMHxwYi0MTEgT-QA@mail.gmail.com>
Subject: One NameNode keeps Rolling Edit Log on HDFS Federation
From: YouPeng Yang <yypvsxf19870706@gmail.com>
To: user@hadoop.apache.org
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--047d7b6dc3bc560b1104d679cf63
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Hi All

 I'm testing the HDFS Federation.I have 2 namenodes in  my cluster.
 I find that it is  Rolling Edit Log continuously on one   namenode,however
the other one  changes nothing.

 My question :
 1. Is it the right situation.
 2. I have thought that the two namenodes shoud keep concurrency.
why they get differences.
 3. is there any advanced docs about HDFS Federation.

thanks.

Regards.

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<div dir=3D"ltr">Hi All<div>=A0 =A0</div><div>=A0I&#39;m testing the=A0<spa=
n style=3D"color:rgb(51,51,51);font-family:Verdana,Helvetica,Arial,sans-ser=
if;font-size:x-small">HDFS Federation.I have 2 namenodes in =A0my cluster.<=
/span><br></div>
<div style><span style=3D"color:rgb(51,51,51);font-family:Verdana,Helvetica=
,Arial,sans-serif;font-size:x-small">=A0I find that it is =A0R</span><font =
color=3D"#333333" face=3D"Verdana, Helvetica, Arial, sans-serif" size=3D"1"=
>olling Edit Log=A0continuously on one =A0 namenode,however the other one =
=A0changes nothing.</font></div>
<div style><font color=3D"#333333" face=3D"Verdana, Helvetica, Arial, sans-=
serif" size=3D"1"><br></font></div><div style><font color=3D"#333333" face=
=3D"Verdana, Helvetica, Arial, sans-serif" size=3D"1">=A0My question :</fon=
t></div><div style>
<font color=3D"#333333" face=3D"Verdana, Helvetica, Arial, sans-serif" size=
=3D"1">=A01. Is it the right=A0situation.</font></div><div style><font colo=
r=3D"#333333" face=3D"Verdana, Helvetica, Arial, sans-serif" size=3D"1">=A0=
2. I have thought that the two namenodes shoud keep=A0</font>concurrency.</=
div>
<div style>why they get differences.</div><div style>=A03. is there any adv=
anced docs about=A0<span style=3D"color:rgb(51,51,51);font-family:Verdana,H=
elvetica,Arial,sans-serif;font-size:x-small">HDFS Federation.</span></div><=
div style>
<span style=3D"color:rgb(51,51,51);font-family:Verdana,Helvetica,Arial,sans=
-serif;font-size:x-small"><br></span></div><div style><span style=3D"color:=
rgb(51,51,51);font-family:Verdana,Helvetica,Arial,sans-serif;font-size:x-sm=
all">thanks.</span></div>
<div style><span style=3D"color:rgb(51,51,51);font-family:Verdana,Helvetica=
,Arial,sans-serif;font-size:x-small"><br></span></div><div style><span styl=
e=3D"color:rgb(51,51,51);font-family:Verdana,Helvetica,Arial,sans-serif;fon=
t-size:x-small">Regards.</span></div>
<div style><br></div><div style><br></div><div style><font color=3D"#333333=
" face=3D"Verdana, Helvetica, Arial, sans-serif" size=3D"1">=A0</font></div=
></div>

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