At 600 CF's I would expect to see very frequent flushing to disk, as the
algorithm that drives this from a memory standpoint is sensitive to the number
of CF's.
Additionally, and from experience on earlier versions, you can expect it to
take over half an hour to make schema changes to over
Thanks for the reply. Isn't the addColumn(IColumn col) method in the writer
private though?
Yes but I thought you had it in your examples, was included for completeness.
use the official overloads.
Cheers
-
Aaron Morton
New Zealand
@aaronmorton
Co-Founder Principal
See the comments for rpc_address and listen_address in the yaml file. These
control which interfaces the server binds to.
If you leave them as blank and DNS is correctly setup they will bind to the
correct address.
If you set them to 0.0.0.0 they will bind to all interfaces, you should not
ERROR [ReplicateOnWriteStage:19] 2013-09-27 10:17:14,778 CassandraDaemon.java
(line 185) Exception in thread Thread[ReplicateOnWriteStage:19,5,main]
java.lang.AssertionError: DecoratedKey(-1754949563326053382,
a414b0c07f0547f8a75410555716ced6) != DecoratedKey(-1754949563326053382,
I am not sure if I should use datastax's DSC or official Debian packages from
Cassandra. How do I choose between them for a production server ?
They are technically the same.
The DSC update will come out a little after the Apache release, and I _think_
they release for every Apache release.
What can be the reason for the handoff process not to finish?
Check for other errors about timing out during hint reply.
What would be the best way to recover from this situation?
If they are really causing trouble drop the hints via HintedHandoffManager JMX
MBean or stopping the node and
It's an error in the antlr compilation, check the antlr versions.
Cheers
-
Aaron Morton
New Zealand
@aaronmorton
Co-Founder Principal Consultant
Apache Cassandra Consulting
http://www.thelastpickle.com
On 27/09/2013, at 11:53 PM, Miguel Angel Martin junquera
Thanks...
On Sep 30, 2013 12:35 PM, Aaron Morton aa...@thelastpickle.com wrote:
See the comments for rpc_address and listen_address in the yaml file.
These control which interfaces the server binds to.
If you leave them as blank and DNS is correctly setup they will bind to
the correct
Thanks Aaron!
Does DSC include other things like Opscenter by default ? I installed DSC
on linux, but Opscenter wasn't installed there but when tried on Windows it
was installed along with JRE python, using the windows installer.
Would it be possible to remove any of these installations but
Thanks Aaron, I've added to the ticket. We were not running on TRACE
logging.
From: Aaron Morton [mailto:aa...@thelastpickle.com]
Sent: 30 September 2013 08:37
To: user@cassandra.apache.org
Subject: Re: 2.0.1 counter replicate on write error
ERROR [ReplicateOnWriteStage:19] 2013-09-27
hi:
is that mean that antlr-3.2.jar is not the correct version?
what is the correct version?
In the build file, I see that cassandra uses the jar lib at the *
${build.lib}* folder, in this case antlr-3.2.jar
...
target name=gen-cql2-grammar depends=check-gen-cql2-grammar
OpsCenter should be a separate package as you would only install it on a
single node, not necessarily even one that is running Cassandra.
On Sat, Sep 28, 2013 at 2:12 PM, Ertio Lew ertio...@gmail.com wrote:
I think both provide the same thing except Datastax Community also
provides some
For those in the Europe area, there will be a Cassandra Summit EU 2013 in
London in the month of October. On 17 October, there will be the main
conference sessions and the 16th and 18th there will be Cassandra workshops.
http://www.datastax.com/cassandraeurope2013
The speakers have been
hi:
I try to test cassandra 2.0.1 and pig 0.11.1
but always when i try to load any keyspacei have this error:
Example creating a test keyspace and data:
I have this error:
*grunt define CqlStorage org.apache.cassandra.hadoop.pig.CqlStorage();*
*grunt rows = LOAD 'cql://keyspace0/test'
I have the same issue using cassandraStorage() and other dataset for this
*note*:
the example cql3 datatest are
CREATE TABLE test (
id text PRIMARY KEY,
title text,
age int
);
and insert some dummy data
insert into test (id, title, age) values('1', 'child', 21);
insert into test (id,
Solr's data is stored on the file system as a set of index files[
http://stackoverflow.com/a/7685579/530153]. Then why do we need anything
like Solandra or DataStax Enterprise Search? Isn't Solr complete solution
in itself ? What do we need to integrate with Cassandra ?
the main reason is scalability and performance.
If your Solr indexes fit fine on a single system and doesn't need to scale
out, Cassandra/HDFS isn't necessary.
On Mon, Sep 30, 2013 at 11:50 AM, Ertio Lew ertio...@gmail.com wrote:
Solr's data is stored on the file system as a set of index
On Mon, Sep 30, 2013 at 8:50 AM, Ertio Lew ertio...@gmail.com wrote:
Solr's data is stored on the file system as a set of index files[
http://stackoverflow.com/a/7685579/530153]. Then why do we need anything
like Solandra or DataStax Enterprise Search? Isn't Solr complete solution
in itself ?
To clarify, solr indexes are not distributed in the same way that Cassandra
data is stored.
With Cassandra, each node receives a fraction of the keyspace (based on
your replication factor and token assignment). With DSE Search, writes to
Cassandra are hooked and each node independently indexes
Also, be aware that while Cassandra has knobs to allow you to get
consistent read results (CL=QUORUM), DSE Search does not. If a node drops
messages for whatever reason, outtage, mutation, etc. its solr indexes will
be inconsistent with other nodes in its replication group.
Will repair fix
Yes.
On Mon, Sep 30, 2013 at 1:57 PM, Andrey Ilinykh ailin...@gmail.com wrote:
Also, be aware that while Cassandra has knobs to allow you to get
consistent read results (CL=QUORUM), DSE Search does not. If a node drops
messages for whatever reason, outtage, mutation, etc. its solr indexes
Hi all,
In cassandra cluster, once a write/update is successful to the particular
instance locally, i want to log the data that is updated and its timestamps
separately in a file.. In which class it will be more appropriate to do this..
To the extent i explored the codebase, it's possible to
Solr's index sitting on a single machine, even if that single machine can
vertically scale, is a single point of failure.
And about Cloud Solr?
2013/9/30 Ken Hancock ken.hanc...@schange.com
Yes.
On Mon, Sep 30, 2013 at 1:57 PM, Andrey Ilinykh ailin...@gmail.comwrote:
Also, be aware
Hello,
I modified a network probe which collects network packets to
store them into cassandra. So there are many packets that are coming in, I
capture the packets in the program and store them into cassandra. I am
using libQtCassandra library. The program is crashing with segmentation
Java version issue?
Using sun jdk or open jdk?
-Vivek
On Tue, Oct 1, 2013 at 6:16 AM, Krishna Chaitanya bnsk1990r...@gmail.comwrote:
Hello,
I modified a network probe which collects network packets to
store them into cassandra. So there are many packets that are coming in, I
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