**
Hi,
** **
I have a 20 node cluster running v1.0.7 split between 5 data centres, each
with an RF of 2, containing a ~1TB unique dataset/~10TB of total data.
** **
I’ve had some intermittent issues with a new data centre (3 nodes, RF=2) I
brought online late last year with data
Hi!
I run repair weekly, using a scheduled cron job.
During repair I see high CPU consumption, and messages in the log file
INFO [ScheduledTasks:1] 2013-02-10 11:48:06,396 GCInspector.java (line
122) GC for ParNew: 208 ms for 1 collections, 1704786200 used; max is
3894411264
From time to time,
Sorry to hijack into this email thread, but what are the use
cases/benefits of using the new binary protocol? and why doesn't
Cassandra offer a drive as a project driver?
Renato M.
2013/2/8 aaron morton aa...@thelastpickle.com:
I'm going to guess Netflix are running Astynax in production with
During repair I see high CPU consumption,
Repair reads the data and computes a hash, this is a CPU intensive operation.
Is the CPU over loaded or is just under load?
I run Cassandra version 1.0.11, on 3 node setup on EC2 instances.
What machine size?
there are compactions waiting.
That's
I’d request data, nothing would be returned, I would then re-request the data
and it would correctly be returned:
What CL are you using for reads and writes?
I see a number of dropped ‘MUTATION’ operations : just under 5% of the total
‘MutationStage’ count.
Dropped mutations in a multi
Hi!
Thanks for the response.
See my answers and questions below.
Thanks!
Tamar
*Tamar Fraenkel *
Senior Software Engineer, TOK Media
[image: Inline image 1]
ta...@tok-media.com
Tel: +972 2 6409736
Mob: +972 54 8356490
Fax: +972 2 5612956
On Sun, Feb 10, 2013 at 10:04 PM, aaron morton
Don't use the variable length Cassandra integer, use the Int32Type. It also
sounds like you want to use a DoubleType rather than FloatType.
http://www.datastax.com/docs/datastax_enterprise2.2/solutions/about_hive#hive-to-cassandra-table-mapping
Cheers
-
Aaron Morton
I would do #1.
You can play with nodetool setcompactionthroughput to speed things up, but
beware nothing comes for free.
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 10/02/2013, at 6:40 AM, Mike
Sounds like flushing due to memory consumption.
The flush log messages include the number of ops, so you can see if this node
was processing more mutations that the others. Try to see if there was more
(serialised) data being written or more operations being processed.
Also just for fun
Is that the right way to do?
No.
If you want to change the token for a node use nodetool move.
Changing it like this will not make the node change it's token. Because after
startup the token is stored in the System.LocationInfo CF.
or -Dcassandra.load_ring_state=false|true is only limited
Hi Aaron,
Thanks for the reply.. I ll try out your suggestion.
Regards,
Dinusha.
On Mon, Feb 11, 2013 at 1:55 AM, aaron morton aa...@thelastpickle.comwrote:
Don't use the variable length Cassandra integer, use the Int32Type. It
also sounds like you want to use a DoubleType rather than
Hello
I have key and columns defined in following fashion:
HotelName1:RoomNum1
HotelName2:RoomNum2
HotelName3:RoomNum3
Key1:TimeStamp:VersionNum
Is there a way that I can query this schema by only 'key' or 'HotelName' i.e.
querying using a part of composite key and not the full
You can query over composite columns as:
1) Partition key
2) First part of clustered key(using EQ ops).
Secondary indexes over non composite columns are not possible.
-Vivek
On Mon, Feb 11, 2013 at 12:06 PM, Rishabh Agrawal
rishabh.agra...@impetus.co.in wrote:
Hello
I have key and
2) Upgrade one node at a time, running the clustered in a mixed
1.1.2-1.1.9 configuration for a number of days.
I'm about to upgrade my 1.1.0 cluster and
http://www.datastax.com/docs/1.1/install/upgrading#info says:
If you are upgrading to Cassandra 1.1.9 from a version earlier than
1.1.7,
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