Hello
I have follow question, if we Read and write to cassandra claster with
QUORUM consistency level, does this allow to us do not call nodetool repair
regular? (i.e. every GCGraceSeconds)
Yes, I personally have configured it to perform a repair once a week, as
the GCGraceSeconds is at 10 days.
This is also what's in the manual
http://wiki.apache.org/cassandra/Operations#Repairing_missing_or_inconsistent_data
(point
2)
2012/4/11 ruslan usifov ruslan.usi...@gmail.com
Hello
I
Sorry fo my bad english, so QUORUM allow doesn't make repair regularity?
But form your anser it does not follow
2012/4/11 R. Verlangen ro...@us2.nl
Yes, I personally have configured it to perform a repair once a week, as
the GCGraceSeconds is at 10 days.
This is also what's in the manual
Well, if everything works 100% at any time there should be nothing to
repair, however with a distributed cluster it would be pretty rare for that
to occur. At least that is how I interpret this.
2012/4/11 Igor i...@4friends.od.ua
BTW, I heard that we don't need to run repair if all your data
On 04/11/2012 11:49 AM, R. Verlangen wrote:
Not everything, just HH :)
I hope this works for me for the next reasons: I have quite large RF (6
datacenters, each carry one replica of all dataset), read and write at
CL ONE, relatively small TTL - 10 days, I have no deletes, servers
almost
HH - this is hinted handoff?
2012/4/11 Igor i...@4friends.od.ua
On 04/11/2012 11:49 AM, R. Verlangen wrote:
Not everything, just HH :)
I hope this works for me for the next reasons: I have quite large RF (6
datacenters, each carry one replica of all dataset), read and write at CL
ONE,
On 04/11/2012 12:04 PM, ruslan usifov wrote:
HH - this is hinted handoff?
Yes
2012/4/11 Igor i...@4friends.od.ua mailto:i...@4friends.od.ua
On 04/11/2012 11:49 AM, R. Verlangen wrote:
Not everything, just HH :)
I hope this works for me for the next reasons: I have quite large
HH in 1.X+ is very good, but it is still an optimisation for achieving
consistency.
So I expect that even if I loose some HH then some other replica will reply
with data. Is it correct?
Run a repair and see.
Cheers
-
Aaron Morton
Freelance Developer
@aaronmorton
