hey are all needed.
cheers
-----
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 29/01/2013, at 10:41 PM, Rishabh Agrawal
wrote:
> Did u trt accessing this cf from CQL, I think it must work from there, also
> try accessing it
Brian,
Could you raise a ticket at
https://issues.apache.org/jira/browse/CASSANDRA ?
Thanks
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 30/01/2013, at 1:23 AM, Brian Jeltema wrote:
> In hadoop-0.2
ate-value, request-value, "data1") and has the value
of data1.
Hope that helps.
-----
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 30/01/2013, at 3:11 AM, POUGET Laurent
wrote:
> Hi,
>
>
> I have
anserver.PerInterface.invoke(PerInterface.java:138)
> at com.sun.jmx.mbeanserver.MBeanSupport.invoke(MBeanSupport.java:250)
> at
> com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
>
>
>
> On Mon, Jan 28, 20
The looks bug like, can you create a ticket on
https://issues.apache.org/jira/browse/CASSANDRA
Please include the C* version, the table and insert statements, and if you can
repo is using CQL 3.
Thanks
Aaron
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
> I think a row mutation is isolated now, but is it across column families?
Correct they are isolated, but only for an individual CF.
> By the way, the wiki page really needs updating.
You can update if you would like to.
Cheers
-
Aaron Morton
Freelance Cassandra Develop
Out of interest do you have the ticket?
A
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 31/01/2013, at 3:19 AM, Edward Capriolo wrote:
> Fix is simply to switch to random partitioner.
>
> On Wednesday, January
nodes which have a token range that intersect with the
token range you have supplied.
So if your query token range is included in one Node Token Range, the query
will be sent to CL nodes that replicate that token range.
Cheers
-----
Aaron Morton
Freelance Cassandra Developer
Check the JMX port listed in /etc/cassandra/cassandra-env.sh
If it's not default you can pass it to nodetool using the --jmx-port option.
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 31/01/2013, at 3:
+1
Also where can I learn more about pyhtondra ?
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 31/01/2013, at 8:09 AM, Rob Coli wrote:
> On Wed, Jan 30, 2013 at 7:21 AM, Edward Capriolo
> wrote:
>> M
Whats the full error stack on the client ?
Are you using a pre-build thrift client or you own ? If the later try using a
pre built client first, like Hector or pycassa. If it works there look into how
that code works and go from there.
Cheers
-
Aaron Morton
Freelance
For Data Stax Enterprise specific questions try the support forums
http://www.datastax.com/support-forums/
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 31/01/2013, at 8:27 AM, S C wrote:
> I am us
Can you update the ticket with your experiences ?
https://issues.apache.org/jira/browse/CASSANDRA-5152
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 31/01/2013, at 11:13 AM, yen-fen_...@mcafee.com wrote:
> I
primary key) is important and identifies the storage "container" that has the
columns.
Your milage may vary
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 31/01/2013, at 4:43 PM, Edward Capriolo wrote:
>
k the help for the CLI or the CQL docs.
> Any side effect? Since we are using SSD, a bit bigger SSD won't slow down the
> read too much, I suppose that is the main concern for bigger size of SSTable?
Do some experiments to see how it works, and let others know :)
Cheers
-
using the natural column order.
Get the last 10 columns using the reversed order.
Hope that helps.
-----
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 31/01/2013, at 7:20 PM, Takenori Sato wrote:
> Hi all,
>
> We hav
the IRC channel.
Cheers
-----
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 31/01/2013, at 11:47 PM, Manu Zhang wrote:
> On Thu 31 Jan 2013 03:43:32 AM CST, Zhong Li wrote:
>> Are there tickets/documents ex
I think http://code.google.com/a/apache-extras.org/p/cassandra-jdbc/issues/list
is the place to raise the issue.
Can you update the mail thread with the ticket as well?
Thanks
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
The spec for the protocol is here
https://git-wip-us.apache.org/repos/asf?p=cassandra.git;a=blob_plain;f=doc/native_protocol.spec;hb=refs/heads/cassandra-1.2
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 1/02/2013
to not require precise range scans ?
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 1/02/2013, at 1:36 PM, Yuhan Zhang wrote:
> Hi all,
>
> I'm tryinng to use get_range to traverse the rows by page
Can you run the select in cqlsh and enabling tracing (see the cqlsh online
help).
If you can replicate it then place raise a ticket on
https://issues.apache.org/jira/browse/CASSANDRA and update email thread.
Thanks
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
nk to exercise that code is create a CQL 3 table with a
list column, add some elements to it and then delete the column. That should
trigger a multi range read, see the code in DeleteStatement.
Good catch, can you raise a ticket if you find a problem ?
Thanks
-
Aaron Morton
Free
ences, cassandra will always return the values with the
highest sequence as it will also be the cassandra timestamp.
Hope that helps.
---------
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 2/02/2013, at 7:51 AM, Jay Svc wrote:
> H
If you are using Murmur3 partitioner and do not wish to partake in vnodes you
can still calculate inital_tokens.
There is a guide here
http://www.datastax.com/docs/1.2/initialize/token_generation#calculating-tokens-for-the-murmur3partitioner
Cheers
-
Aaron Morton
Freelance
re data on each node.
In 1.2 there are things that make replacing a node faster, but they tend to
kick in at higher node counts.
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 3/02/2013, at 6:45 AM, Kanwar San
-Index.db components only contain the index.
In v1.2+ -Summary.db contains a sampling of the index read at startup.
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 3/02/2013, at 11:03 AM, Kanwar Sangha wrote:
>
(Default: localhost)
-th, --thrift-host Thrift hostname or IP address (Default: JMX host)
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 3/02/2013, at 11:32 PM, Manu Zhang wrote:
> On Sun 03 Feb 2013 05:45
nodetool cfhistorgrams will let you know, run it once to reset the counts ,
then do your test, then run it again.
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 4/02/2013, at 4:13 AM, Edward Capriolo wrote:
&g
Grab 1.2.1, it's fixed there http://cassandra.apache.org/download/
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 5/02/2013, at 4:37 AM, "Kumar, Anjani" wrote:
>
> I am facing problem whil
heers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 5/02/2013, at 7:15 AM, Pradeep Kumar Mantha wrote:
> Hi,
>
> Could some one please let me know any hints, why the pycassa client(attached)
> is much slower than the YCSB?
>
The simple thing to do would be use the multiprocessing package and eliminate
all shared state.
On a multicore box python threads can run on different cores and battle over
obtaining the GIL.
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http
Same as regular CF's.
> How do they effect compaction?
None.
Cheers
-----
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 6/02/2013, at 7:47 AM, Drew Kutcharian wrote:
> Hey Guys,
>
> Are there any specific oper
Use nodetool status with vnodes
http://www.datastax.com/dev/blog/upgrading-an-existing-cluster-to-vnodes
The different load can be caused by rack affinity, are all the nodes in the
same rack ? Another simple check is have you created some very big rows?
Cheers
-
Aaron Morton
y large ranges. Correct?
Even without vnodes there is no guarantee that nodes had contiguous key ranges.
Cheers
-----
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 6/02/2013, at 5:43 AM, Baron Schwartz wrote:
> As I understa
> There is always num_tokens tokens in the ring.
I got this wrong.
Each node *does* have num_tokens tokens.
>> With N nodes, the ring is divided into N*num_tokens. Correct?
Yes
> In other words it is cluster wide parameter. Correct?
Yes.
Cheers
-----
Aaron Mort
I understand.
Cheers
-----
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 6/02/2013, at 11:15 AM, Drew Kutcharian wrote:
> Thanks Aaron, so will there only be one "value" for each counter column per
> sstable just like regular co
) is the partition key, same the thrift row key.
message_sequence, message_id is the grouping columns, all instances will be
grouped / ordered by these columns.
Hope that helps.
-----
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
First check your node for IO errors. You have some bad data there.
When you restart cassandra it may identify which sstables are corrupt. You can
then stop the node and remove them.
You will then need to run repair to replace the missing data.
Hope that helps.
-
Aaron
the -old.json is an artefact of Levelled Compaction.
You should see a non -old file in the current CF folder.
I'm not sure what would have created the -old CF dir. Does the timestamp
indicate it was created the time the server first started as a 1.2 node?
Cheers
-
Double check the truncate worked, all nodes must be available for it execute.
If you can provide the output from the cqlsh from truncating and selecting that
would be helpful.
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http
ort of token that includes the last time stamp seen by
the client. Then make as many queries as necessary to get the missing data.
> > I guess this makes the data model span across many CFs ?
Yes.
Sorry I have not considered conversations.
Cheers
-----
Aaron Morton
Freelance
I'm going to guess Netflix are running Astynax in production with Cassandra
1.1.
cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 8/02/2013, at 6:50 AM, Cassa L wrote:
> Thank you all for the responses
t;N (e.g. QUORUM + QUROUM ) will be consistent.
Can you drill down into the consistency problem?
Cheers
---------
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 8/02/2013, at 7:01 AM, Brian Jeltema wrote:
> I'm confused about
the validation compaction used
for the repair. Which may in turn add additional IO load, CPU load and GC
pressure. You probably do not want to do this.
Try reducing the compaction throughput to say 12 normally and see the effect.
Cheers
-
Aaron Morton
Freelance Cassa
successfully",
getName()));
Or this on failure
logger.error(String.format("[repair #%s] session completed with the following
error", getName()), exception);
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
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 M
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 wrote:
> Th
check the JVM and yaml settings are as expected.
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 10/02/2013, at 6:29 AM, Mike wrote:
> Hello,
>
> We just hit a very odd issue in our Cassandra cluster. We ar
rue is only limited to changes to
> seed/listen_address ?
it's used when a node somehow as a bad view of the ring, and you want it to
forget things.
Cheers
-----
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 10/02/2013, at
ion or repair try reducing
the throughput.
I would attribute most of the problems you have described to using m1.large.
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 11/02/2013, at 9:16 AM, Tamar Fraenkel wrote:
That sounds like a bug, or something that is still under work. Sylvain has his
finger on all things CQL.
Can you raise a ticket on https://issues.apache.org/jira/browse/CASSANDRA
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http
en 5 data centres,
>>> I’ve had some intermittent issues with a new data centre (3 nodes, RF=2) I
Do all DC's have the same number of nodes ?
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 11/02/2013, at 9:13 PM
crazy. I then upgrade
all the nodes and run through the upgrade table. You can stagger upgrade table
to be every RF'th node in the cluster to reduce the impact.
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 11/02
each node the initial_token yaml setting is commented out, and
that num_tokens is set to 256.
If you can reproduce this fault with a clean setup please raise a ticket at
https://issues.apache.org/jira/browse/CASSANDRA
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New
Are you using counters? They require a read before write.
Also secondary index CF's require a read before write.
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 8/02/2013, at 1:26 PM, Daning Wang wrote:
>
I suggest trying Int32Type and Double
http://www.datastax.com/docs/datastax_enterprise2.1/analytics/about_hive#mapping-hive-external-tables-to-cassandra-column-families
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On
I think it's a little more subtle that that
https://issues.apache.org/jira/browse/CASSANDRA-5242
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 8/02/2013, at 10:21 PM, "Desimpel, Ignace"
wrote:
&
t is different to the CMS occupancy setting.
If you have a lot of rows, 100's of millions, consider reducing the bloom
filter false positive ratio.
Or just upgrade to 1.2 which uses less JVM memory.
Cheers
-----
Aaron Morton
Freelance Cassandra Developer
New Zealand
Just checking if this sorted it's self out?
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 10/02/2013, at 1:15 AM, Jouni Hartikainen
wrote:
> Hello all,
>
> I have a cluster of three nodes running
der reducing the
min_compaction_level_threshold on the CF to 2
Cheers
---------
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 12/02/2013, at 4:21 AM, Alain RODRIGUEZ wrote:
> Hi,
>
> I would like to know if there is a way
n the logs.
Cheers
---------
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 12/02/2013, at 6:13 AM, Andre Sprenger wrote:
> Hi,
>
> I'm running a 6 node Cassandra 1.1.5 cluster on EC2. We have switched to
> lev
> I see the same keys in both nodes. Replication is not enabled.
Why do you say that ?
Check the schema for Keyspace1 using the cassandra-cli.
Cheers
-----
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 12/02/2013, at 9
Cassandra handles nodes changing IP. The import thing to Cassandra is the
token, not the IP.
In your case did the replacement node have the same token as the failed one?
You can normally work around these issues using commands like nodetool
removetoken.
Cheers
-
Aaron
You have linked to the 1.2 news file, which branched from 1.1 at some point.
Look at the news file in the distribution you are installing or here
https://github.com/apache/cassandra/blob/cassandra-1.1/NEWS.txt
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
> Can anyone know the impact of not running upgrade sstables? Or possible not
> running it for several days?
nodetool repair will not work.
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 12/02/2013, at 11
things are stable.
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 12/02/2013, at 2:55 PM, Daning Wang wrote:
> Thanks Aaron.
>
> I tried to migrate existing cluster(ver 1.1.0) to 1.2.1 but failed.
>
&g
This looks like a bug in 1.2 beta
https://issues.apache.org/jira/browse/CASSANDRA-4553
Can you confirm you are running 1.2.1 and if you can re-create this with a
clean install please create a ticket on
https://issues.apache.org/jira/browse/CASSANDRA
Thanks
-
Aaron Morton
Restore the settings for num_tokens and intial_token to what they were before
you upgraded.
They should not be changed just because you are upgrading to 1.2, they are used
to enable virtual nodes. Which are not necessary to run 1.2.
Cheers
-
Aaron Morton
Freelance Cassandra
compactions are not running they should
start again.
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 13/02/2013, at 8:11 PM, Andre Sprenger wrote:
>
> Aaron,
>
> thanks for your help.
>
> I ran &#
e may be some confusion about the location of the settings in CLI vs CQL.
Can you point to the docs.
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 13/02/2013, at 10:14 PM, Alain RODRIGUEZ wrote:
> Hi Aaron, on
That's what the TTL does.
Manually delete all the older data now, then start using TTL.
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 13/02/2013, at 11:08 PM, Ilya Grebnov wrote:
> Hi,
>
>
heers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 15/02/2013, at 9:42 AM, Kanwar Sangha wrote:
> Hi – Is there a parameter which can be tuned to prevent the mutations from
> being dropped ? Is this logic correct ?
>
> Node A and B
command has been running for almost 24hours and I can’t see
> any activity from the logs or JMX.
Grep for "session completed"
Cheers
-----
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 15/02/2013, at 11:38 PM, H
ily/snapshots/-ColumnFamily/
> what are these directories?
Probably automatic snapshot from dropping KS or CF's
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 16/02/2013, at 4:41 AM, S C wrote:
> I
There is always this old chestnut
http://wiki.apache.org/cassandra/FAQ#ubuntu_hangs
A
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 16/02/2013, at 8:22 AM, Edward Capriolo wrote:
> With hyper threading a core can show
replace a node, the memory considerations for 100's of millions of rows. If you
the performance of those operations is acceptable to you, then go crazy.
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 16/02/2013,
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 16/02/2013, at 9:35 AM, "Hiller, Dean" wrote:
>
> Thanks,
> Dean
I'll email the docs people.
I believe they are saying "use compaction throttling rather than this" not
"this does nothing"
Although I used this in the last month on a machine with very little ram to
limit compaction memory use.
Cheers
-
Aaron M
If you want the underlying ideas try the Dynamo paper, the Big Table paper and
the original Cassandra paper from facebook.
Start here http://www.allthingsdistributed.com/2007/10/amazons_dynamo.html
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
ges with "session completed" in the log from the
AntiEntropyService
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 18/02/2013, at 12:51 AM, Marco Matarazzo wrote:
> Greetings.
>
> I'm trying to run &quo
e to purge
from disk, depending on the workload.
Cheers
-----
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 18/02/2013, at 10:43 AM, Ilya Grebnov wrote:
> According to https://issues.apache.org/jira/browse/CASSANDRA-210
ir with
-pr on one of nodes not already repaired.
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 18/02/2013, at 11:12 AM, Marco Matarazzo wrote:
>>> So, to me, it's like the "nodetool repair" co
Nothing jumps out.
Check /var/log/cassandra/output.log , that's where stdout and std err are
directed.
Check file permissions.
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 18/02/2013, at 9:08 PM, a
An you can never go wrong relying on the documentation for the python pycassa
library, it has some handy tutorials for getting started.
http://pycassa.github.com/pycassa/
cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
number of
cases where people had 1 TB on a single node and they were surprised it took
days to repair or replace. If you know how long things may take, and that fits
in your operations then go with it.
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
You may be interested in something like this for connecting to flume
https://github.com/thobbs/flume-cassandra-plugin
There is probably something similar for kafka out there.
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http
Nice.
Can you please raise a ticket at
https://issues.apache.org/jira/browse/CASSANDRA an include the version you were
using.
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 19/02/2013, at 1:44 AM, "Des
quest complete.
Cheers
-----
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 19/02/2013, at 1:48 AM, Kanwar Sangha wrote:
> Thanks Aaron.
>
> Does the rpc_timeout not control the client timeout ? Is there any param
>
You'll need to use two CF's to achieve that. Denormalising to support a
workload like that is not a terrible idea.
Depending on how big the 7 days hot set is you may get benefit from using a
large row cache with one CF. Maybe worth doing some testing.
CHeers
-----
Aa
kind.
While it may be more work I personally would use one node in write survey to
test LCS
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 20/02/2013, at 6:28 AM, Henrik Schröder wrote:
> Well, that answer did
eup.
Hope that helps.
-----
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 20/02/2013, at 1:44 PM, Brandon Walsh wrote:
> I have a 5 node cluster and currently running ver 1.2. Prior to full scale
> deployment, I'm ru
CQL does not support offset but does have limit.
See
http://www.datastax.com/docs/1.2/cql_cli/cql/SELECT#specifying-rows-returned-using-limit
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 20/02/2013, at 1:47 PM
My first guess would be the bloom filter and index sampling from lots-o-rows
Check the row count in cfstats
Check the bloom filter size in cfstats.
Background on memory requirements
http://www.mail-archive.com/user@cassandra.apache.org/msg25762.html
Cheers
-
Aaron Morton
ll the sstable compaction continue and eventually we will have 1 file ?
No.
The default size tiered strategy compacts files what are roughly the same size,
and only when there are more than 4 (default) of them.
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaron
ature tenuring cause issues with wide rows
/ long reads.
Hope that helps.
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 21/02/2013, at 4:35 AM, "Hiller, Dean" wrote:
> Oh, and my startup command that cassandra
o get a better idea of how long a request
takes in your system.
Cheers
-----
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 21/02/2013, at 6:56 AM, Wei Zhu wrote:
> What does rpc_timeout control? Only the reads/writes? How
y having different CF's allows you to use different cache settings,
compactions settings and even storage mediums.
Cheers
-----
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 21/02/2013, at 7:43 AM, Adam Venturella wrote:
&g
answer.
Cheers
---------
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 21/02/2013, at 7:49 AM, "Hiller, Dean" wrote:
> I took this jmap dump of cassandra(in production). Before I restarted the
> whole production cluster, I had some
?)
Potentially yes.
The simple thing would be to wait until a full repair cycle (on all nodes) to
complete.
Cheers
-----
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 22/02/2013, at 3:44 AM, Jean-Armel Luce wrote:
> Hel
If you are lazy like me wolfram alpha can help
http://www.wolframalpha.com/input/?i=transfer+42TB+at+10GbE&a=UnitClash_*TB.*Tebibytes--
10 hours 15 minutes 43.59 seconds
Cheers
-----
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle
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