Hi!
On the
http://wiki.apache.org/cassandra/Operations#Dealing_with_the_consequences_of_nodetool_repair_not_running_within_GCGraceSeconds
you can read:
"To minimize the amount of forgotten deletes, first increase
GCGraceSeconds across the cluster (rolling restart required)"
Rolling restart
Thanks, good work.
Cheers
-
Aaron Morton
Freelance Developer
@aaronmorton
http://www.thelastpickle.com
On 9/01/2012, at 1:25 PM, Caleb Rackliffe wrote:
> After some searching, I think I may have found something in the code itself,
> and so I've filed a big report -
> https://
Check the logs on .17 for errors. Also see what the most recent messages are.
There should be messages about streams completing and messages about compaction
running.
The bootstrapping node needs to build the tables for the data it has received.
This is done in the compaction manager, but 836
Nah, thats old style.
gc_grace_seconds is a CF level setting now. Make the change with update column
family in the CLI or your favorite client.
Cheers
-
Aaron Morton
Freelance Developer
@aaronmorton
http://www.thelastpickle.com
On 9/01/2012, at 9:33 PM, Igor wrote:
> Hi!
>
Hi,
I have create a new dev-cluster with cassandra 1.0 -- I would like to have the
same CFs that I have in the 0.7 one but I don't need data to be there, just the
schema. Which is the fastest way to do it without making 30 "create column
family ..."
Best regards,
Carlo
Try show schema in the CLI.
Cheers
-
Aaron Morton
Freelance Developer
@aaronmorton
http://www.thelastpickle.com
On 9/01/2012, at 11:12 PM, cbert...@libero.it wrote:
> Hi,
> I have create a new dev-cluster with cassandra 1.0 -- I would like to have
> the
> same CFs that I have
ah, sorry brain not good work.
It's only in 0.8.
You could either:
* write the CLI script by hand
or
* Grab the system sstables from one of the 0.7 nodes and spin up a temp 1.0
machine them, then use the command.
or
* See if your cassandra client software can help.
Hope that helps.
---
I was just trying it but ... in 0.7 CLI there is no show schema command.When I
connect with 1.0 CLI to my 0.7 cluster ...
[default@social] show schema;null
I always get a "null" as answer! :-|Any tip for this?
ty, Cheers
Carlo
Messaggio originale
Da: aa...@thelastpickle.com
Data: 09
A "null" response is most of the times an exception, try to take a look at
the Cassandra logs to find out what causes the problem.
2012/1/9 cbert...@libero.it
> I was just trying it but ... in 0.7 CLI there is no show schema command.
>
> When I connect with 1.0 CLI to my 0.7 cluster ...
>
>
> [d
On Mon, Jan 9, 2012 at 1:18 AM, Erik Forsberg wrote:
> Hi!
>
> Can the new BulkOutputFormat
> (https://issues.apache.org/jira/browse/CASSANDRA-3045) be used to load data
> to servers running cassandra 0.8.7 and/or Cassandra 1.0.6?
>
> I'm thinking of using jar files from the development version to
Hi,
I am currently running 4 cassandra nodes with the following hardware
- AMD Athlon 64 X2 6000+
- 8G RAM
- 750G hard disk
It shows not such a good writing performance and a really bad read
performance with sometimes also timeouts. I was wondering if it makes
sense to add 2 nodes with a differe
What is the fastest way to copy a column family?
We were headed down the map/reduce path, but that seems silly.
Any file level mechanisms for this?
-brian
--
Brian ONeill
Lead Architect, Health Market Science (http://healthmarketscience.com)
mobile:215.588.6024
blog: http://weblogs.java.net/blog
On Mon, Jan 9, 2012 at 9:14 AM, Brian O'Neill wrote:
>
> What is the fastest way to copy a column family?
> We were headed down the map/reduce path, but that seems silly.
> Any file level mechanisms for this?
Copy all the sstables 1:1 renaming them to the new CF name. Then
create the schema for
Excellent. We'll give it a try.
Thanks Brandon.
-brian
Brian O'Neill
Lead Architect, Software Development
Health Market Science | 2700 Horizon Drive | King of Prussia, PA 19406
p: 215.588.6024blog: http://weblogs.java.net/blog/boneill42/
blog: http://brianoneill.blogspot.com/
On 1/9
Would this apply to copying data from one cluster to another, assuming I do
a rolling drain and shutdown ?
Thanks
Le 9 janv. 2012 16:32, "Brandon Williams" a écrit :
> On Mon, Jan 9, 2012 at 9:14 AM, Brian O'Neill
> wrote:
> >
> > What is the fastest way to copy a column family?
> > We were head
On Mon, Jan 9, 2012 at 11:34 AM, Philippe wrote:
> Would this apply to copying data from one cluster to another, assuming I do
> a rolling drain and shutdown ?
> Thanks
Only if the tokens also match 1:1 and you copy to the same tokens. If
they don't match, the easiest thing to do is use the bulk
> Or does a cassandra cluster works best with the same
> hardware in every node?
Things work best if the nodes all have the same HW. If you mix HW then you need
to capacity plan against a machine made up of all of the lowest performing
parts.
What's happening with the poor performance ?
Poke
On Monday 09 of January 2012, aaron morton wrote:
> (...) Is there a reason you are not adding 0.8.9 ?
Only my mistake, I repeated procedure with 0.8.9 node joining and now, after
finishing net transfers, node was busy compacting, finally switching to
"Normal" state.
> Check the logs on .17 fo
On 01/08/2012 03:43 PM, aaron morton wrote:
The reason I asked was because I could not understand
<>Follower_For_Users
<>#{"userID",n}:"followerID"
I found about Composite Types and I am trying to solve a situation
like using composite. Also I read that Cassandra columns can save
upto 2 bil
Binary package doesn't include source code, which you need to run
cassandra in Eclipse.
If you want to run cassandra in Eclipse, you need to download Source package OR
git repository, and then integrate it with Eclipse.
If you just want to run cassandra, you don't need to checkout source.
To clone
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