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From Stack <st...@duboce.net>
Subject Re: data loss after killing RS
Date Wed, 01 Jun 2011 17:40:23 GMT
On Wed, Jun 1, 2011 at 7:00 AM, Qing Yan <qingyan@gmail.com> wrote:
> Hello Stack,
>
> That parameter is for WAL right? I am trying to find a way to achieve
> reliable persistency in HBase without the WAL slowness, but it looks like
> impossible ..
>

You specify it when you set the schema for your table.  Try it.

Yes, syncing each write is expensive.  There is a grouping effect
going on in the dfsclient which makes it so we are not sync'ing each
write but it could be the case if for example your edits are large?
What size are they?

St.Ack

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