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From: John Vines <vines@apache.org>
Date: Tue, 25 Feb 2014 10:53:05 -0500
Message-ID: 
 <CADczPYSdRMNQfqOirrkunkAfH8mWf8ttFsodjYBRYrVNGike2A@mail.gmail.com>
Subject: Re: HDFS caching w/ Accumulo?
To: "user@accumulo.apache.org" <user@accumulo.apache.org>
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I could see it being used for the metadata and root table files, at a
minimum. Also useful for other reused information in HDFS- tableId for
HdfsZooInstance, KeyEncryptionKey if that's being used. Maybe root/metadata
WALogs as well.


On Tue, Feb 25, 2014 at 10:49 AM, Donald Miner <dminer@clearedgeit.com>wrote:

> HDFS caching is part of the new Hadoop 2.3 release. From what I
> understand, it allows you to mark specific files to be held in memory for
> faster reads.
>
> Has anyone thought about how Accumulo could leverage this?
>

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<div dir=3D"ltr">I could see it being used for the metadata and root table =
files, at a minimum. Also useful for other reused information in HDFS- tabl=
eId for HdfsZooInstance, KeyEncryptionKey if that&#39;s being used. Maybe r=
oot/metadata WALogs as well.</div>

<div class=3D"gmail_extra"><br><br><div class=3D"gmail_quote">On Tue, Feb 2=
5, 2014 at 10:49 AM, Donald Miner <span dir=3D"ltr">&lt;<a href=3D"mailto:d=
miner@clearedgeit.com" target=3D"_blank">dminer@clearedgeit.com</a>&gt;</sp=
an> wrote:<br>

<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex"><div dir=3D"ltr"><div>HDFS caching is part o=
f the new Hadoop 2.3 release. From what I understand, it allows you to mark=
 specific files to be held in memory for faster reads.<br>

<br></div>Has anyone thought about how Accumulo could leverage this?<br>

</div>
</blockquote></div><br></div>

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