Re: How many nodes do we require

2016-03-31 Thread Jack Krupansky
nhaddad.com] > *Sent:* jeudi 31 mars 2016 17:48 > > *To:* user@cassandra.apache.org > *Subject:* Re: How many nodes do we require > > > > Losing a write is very different from having a fragile cluster. A fragile > cluster implies that whole thing will fall apart,

RE: How many nodes do we require

2016-03-31 Thread Jacques-Henri Berthemet
You’re right. I meant about data integrity, I understand it’s not everybody’s priority! -- Jacques-Henri Berthemet From: Jonathan Haddad [mailto:j...@jonhaddad.com] Sent: jeudi 31 mars 2016 17:48 To: user@cassandra.apache.org Subject: Re: How many nodes do we require Losing a write is very

Re: How many nodes do we require

2016-03-31 Thread Jonathan Haddad
if > it was not yet replicated. > > > > *--* > > *Jacques-Henri Berthemet* > > > > *From:* Jonathan Haddad [mailto:j...@jonhaddad.com] > *Sent:* vendredi 25 mars 2016 19:37 > > > *To:* user@cassandra.apache.org > *Subject:* Re: How many nodes do we req

Re: How many nodes do we require

2016-03-31 Thread Alain RODRIGUEZ
gt; Because if you lose a node you have chances to lose some data forever if >> it was not yet replicated. >> >> >> >> *--* >> >> *Jacques-Henri Berthemet* >> >> >> >> *From:* Jonathan Haddad [mailto:j...@jonhaddad.com] >> *Sent:* v

Re: How many nodes do we require

2016-03-31 Thread Alain RODRIGUEZ
> > > *From:* Jonathan Haddad [mailto:j...@jonhaddad.com] > *Sent:* vendredi 25 mars 2016 19:37 > > *To:* user@cassandra.apache.org > *Subject:* Re: How many nodes do we require > > > > Why would using CL-ONE make your cluster fragile? This isn't obvious to > me. It's

RE: How many nodes do we require

2016-03-29 Thread Jacques-Henri Berthemet
Because if you lose a node you have chances to lose some data forever if it was not yet replicated. -- Jacques-Henri Berthemet From: Jonathan Haddad [mailto:j...@jonhaddad.com] Sent: vendredi 25 mars 2016 19:37 To: user@cassandra.apache.org Subject: Re: How many nodes do we require Why would

Re: How many nodes do we require

2016-03-25 Thread Jonathan Haddad
; Jacques-Henri Berthemet > > > -Original Message- > From: Rakesh Kumar [mailto:rakeshkumar46...@gmail.com] > Sent: vendredi 25 mars 2016 18:14 > To: user@cassandra.apache.org > Subject: Re: How many nodes do we require > > On Fri, Mar 25, 2016 at 11:45 AM, Jack Krupansky &

RE: How many nodes do we require

2016-03-25 Thread Jacques-Henri Berthemet
Message- From: Rakesh Kumar [mailto:rakeshkumar46...@gmail.com] Sent: vendredi 25 mars 2016 18:14 To: user@cassandra.apache.org Subject: Re: How many nodes do we require On Fri, Mar 25, 2016 at 11:45 AM, Jack Krupansky wrote: > It depends on how much data you have. A single node can store a lot

Re: How many nodes do we require

2016-03-25 Thread Rakesh Kumar
On Fri, Mar 25, 2016 at 11:45 AM, Jack Krupansky wrote: > It depends on how much data you have. A single node can store a lot of data, > but the more data you have the longer a repair or node replacement will > take. How long can you tolerate for a full repair or node replacement? At this time, f

Re: How many nodes do we require

2016-03-25 Thread Jack Krupansky
It depends on how much data you have. A single node can store a lot of data, but the more data you have the longer a repair or node replacement will take. How long can you tolerate for a full repair or node replacement? Generally, RF=3 is both sufficient and recommended. -- Jack Krupansky On Fri