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Date: Fri, 21 Jun 2013 11:53:58 -0700
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 <CADdVdVF78PyD9yyDJzzo5nzYsUdPj-4EyNoH+PPKESs1DHw=Sg@mail.gmail.com>
Subject: Re: HDFS upgrade under HA
From: Suresh Srinivas <suresh@hortonworks.com>
To: "hdfs-user@hadoop.apache.org" <user@hadoop.apache.org>
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I have hard time understanding your question.


On Fri, Jun 21, 2013 at 12:16 AM, Azuryy Yu <azuryyyu@gmail.com> wrote:

> 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?
>

Layout version can increase (or decrease given it is negative number) by
more than 1, when you upgrade to a new release. So 2.0.4-alpha(-43) can
upgrade to trunk(-45) version.


>
> 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,
>

What is preventing you from upgrading? Please add details on what you are
doing and what issue you are seeing.

Regards,
Suresh

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<div dir=3D"ltr">I have hard time understanding your question.<div><br></di=
v><div class=3D"gmail_extra"><br><br><div class=3D"gmail_quote">On Fri, Jun=
 21, 2013 at 12:16 AM, Azuryy Yu <span dir=3D"ltr">&lt;<a href=3D"mailto:az=
uryyyu@gmail.com" target=3D"_blank">azuryyyu@gmail.com</a>&gt;</span> wrote=
:<br>

<blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-=
left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;p=
adding-left:1ex"><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 versi=
on to -45. <br>

<br></div>so if My test cluster is running hadoop-2.0.4-alpha(-43), which i=
s upgraded from hadoop-1.0.4, then I want to upgrade using trunk(-45), how =
to do?<br></div></div></div></blockquote><br class=3D""><div>Layout version=
 can increase (or decrease given it is negative number) by more than 1, whe=
n you upgrade to a new release. So 2.0.4-alpha(-43) can upgrade to trunk(-4=
5) version.</div>
<div>=A0</div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px=
 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left=
-style:solid;padding-left:1ex"><div dir=3D"ltr"><div><div>

<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></div></div></blockquote><div><br></div><div style>What is pr=
eventing you from upgrading? Please add details on what you are doing and w=
hat issue you are seeing.</div>
<div style><br></div><div style>Regards,</div><div style>Suresh</div><div s=
tyle><br></div></div>
</div></div>

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