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Subject: HDFS upgrade under HA
From: Azuryy Yu <azuryyyu@gmail.com>
To: user@hadoop.apache.org
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--047d7bdc123821df2804dfa4d815
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Hi,

The layout version is -43 until 2.0.4-alpha, but HDFS-4908 changed layout
version to -45.

so if My test cluster is running hadoop-2.0.4-alpha(-43), which is upgraded
from hadoop-1.0.4, then I want to upgrade using trunk(-45), how to do?

It cannot upgrade under HA, so I can use hadoop-1.0.4 core-site and
hdfs-site, then "start-dfs.sh -upgrade", but standby NN cannot upgrade,

so how to upgrade standby NN under HA?

--047d7bdc123821df2804dfa4d815
Content-Type: text/html; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div><div><div><div>Hi,<br><br></div>The layout version is=
 -43 until 2.0.4-alpha, but HDFS-4908 changed layout version to -45. <br><b=
r></div>so if My test cluster is running hadoop-2.0.4-alpha(-43), which is =
upgraded from hadoop-1.0.4, then I want to upgrade using trunk(-45), how to=
 do?<br>

<br></div>It cannot upgrade under HA, so I can use hadoop-1.0.4 core-site a=
nd hdfs-site, then &quot;start-dfs.sh -upgrade&quot;, but standby NN cannot=
 upgrade, <br><br></div>so how to upgrade standby NN under HA?<br><br>
</div>

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