I use ElasticSearch myself. Which is a distributed Lucene.
http://www.elasticsearch.org
On Sat, Jun 4, 2011 at 1:56 AM, Mark Kerzner wrote:
> Hi,
>
> I need to store, say, 10M-100M documents, with each document having say 100
> fields, like author, creation date, access date, etc., and then I w
Hi,
In Cassandra 0.8, CQL become the primary client interface, but I don't know how
to use it in a non-command line env. I could not find out any how-to do docs in
Wiki or DataStax's website.
Thanks
Thanks you very much.
but I'm afraid it's not a graceful means if there are billion columns in a row.
>
>发件人： Michal Augustýn
>收件人： user@cassandra.apache.org; Yonder
>发送日期： 2011年6月2日, 星期四, 下午 9:25
>主题: Re: how to know there are some columns in a row
>
>Hi,
>
Hi,
I am planning to use Cassandra to store my users passwords and at the same
time data for my website that need to be accessible via search. My Question
is should I use two DB: Cassandra (for users passwords) and Solandra (for
the websites data) or can I put everything in Solandra?
Is there a w
Hello there!
I have ran into a strange problem several times now and I wonder if someone
here has an solution for me:
For some of my data I want to keep track all the ID's I have used. To do
that, I am putting the ID's as column into rows.
At first I wanted to put all ID's into one row (because
Why do you need Solandra for storing data ? If you want to retrieve data
simply use Cassandra. Solandra is for research and indexing it is a search
engine. I do not recommand you to store data uniquely in a search engine.
Use the following desgin :
*Store ALL data in Cassandra then extract from C
Are you sure you really need cassandra for this ? For me it sounds
like mysql or other databases would be a better fit for you (if you
don't need to store a very hugh amount of data...)
Bye,
Norman
2011/6/4 Jean-Nicolas Boulay Desjardins :
> Hi,
> I am planning to use Cassandra to store my users
It sounds like you're trying to read entire rows at once. Past a
certain point (depending on your heap size) you won't be able to do
that, you need to "page" through them N columns at a time.
On Sat, Jun 4, 2011 at 12:27 PM, Mario Micklisch
wrote:
> Hello there!
> I have ran into a strange proble
Thank you for the reply! I am not trying to read a row with too many columns
into memory, the lock I am experiencing is write-related only and happening
for everything added prior to an unknown event.
I just ran into the same thing again and the column count is maybe not the
real issue here (as I
Did you check the server log for errors?
See if the problem persists after running nodetool compact. If it
does, use sstable2json to export the row in question.
On Sat, Jun 4, 2011 at 3:21 PM, Mario Micklisch
wrote:
> Thank you for the reply! I am not trying to read a row with too many columns
>
I think the OP was asking if you can use the same Cassandra cluster
that Solandra
is integrated with to store non-Solandra in a different keyspace. This would
remove the need to run two Cassandra clusters, one for storing his Solandra
index, and another for his other data.
I'm not sure if Solandra
Yes, checked the log file, no errors there.
With debug logging it confirms to receive the write too and it is also in
the commitlog.
DEBUG 22:00:14,057 insert writing local RowMutation(keyspace='TestKS',
key='44656661756c747c6532356231342d373937392d313165302d613663382d31323331336330616334
Hello,
I am evaluating using cassandra and I'm running into some strange IO
behavior that I can't explain, I'd like some help/ideas to troubleshoot it.
I am running a 1 node cluster with a keyspace consisting of two columns
families, one of which has dozens of supercolumns itself containing dozens
On Saturday, June 4, 2011, Kirk Peterson wrote:
> I think the OP was asking if you can use the same Cassandra cluster
> that Solandra is integrated with to store non-Solandra in a different
> keyspace. This would remove the need to run two Cassandra clusters, one for
> storing his Solandra inde
Currently I'm using a client (Pelops) to insert UUIDs (both lexical and
time) in to Cassandra. I haven't yet implemented a facility to remove them
with Pelops; i'm testing and refining the insertion mechanism.
As such, I would like to use the CLI to delete test UUID values. It seems,
however, t
Hi everyone,
Is it possible to have direct control over where objects are stored in
Cassandra? For example, I have a Cassandra cluster of 4 machines and 4
objects A, B, C, D; I want to store A at machine 1, B at machine 2, C
at machine 3 and D at machine 4. My guess is that I need to intervene
the
Hi,
So if I understand Solandra.
All the data are in Solandra and you can query them like you would normaly
with a normal Cassandra setup and search through them.
The data from the indexing of Solr is stored in Cassandra column family...
Second, question. I have Thrift already install will it a
It's a maven task that is failing, check which version you have (no idea if
it's automatically packaged with ant). Works for me with these...
$ ant -version
Apache Ant(TM) version 1.8.2 compiled on February 28 2011
$ /usr/bin/mvn -V
Apache Maven 3.0.2 (r1056850; 2011-01-09 13:58:10+1300)
Hope
May be wrong but as far as I know thrift is still the official API, for now.
CQL is in it's first release and still has a few things to be added to it
https://issues.apache.org/jira/browse/CASSANDRA-2472 . That said, jump in and
try it out :)
The best documentation I can point you to is
https
You can also use slice a range of columns for a row , e.g. first 100 columns
after column "".
What client are you using ?
Cheers
-
Aaron Morton
Freelance Cassandra Developer
@aaronmorton
http://www.thelastpickle.com
On 5 Jun 2011, at 04:19, Yonder wrote:
>
> Thanks you
You may be able to do it with the Order Preserving Partitioner with
making key to node mapping before storing data, or you may need your
custom Partitioner. Please note that you are responsible to distribute
load between nodes in this case.
>From application design perspective, it is not clear for
It is rarely a good idea to let the data disk get to far over 50% utilisation.
With so little free space the compaction process will have trouble running
http://wiki.apache.org/cassandra/MemtableSSTable
As you are on the RC1 I would just drop the data and start again. If you need
to keep it you
Is CQL really the path for the future for Cassandra?
It seems to me by introducing a textual language that has to be parsed
and understood, you are adding back in some of the inefficiency of
SQl...
2011/6/4 aaron morton :
> May be wrong but as far as I know thrift is still the official API, for n
Sounds like Khanh thinks he can do joins... :-)
User oriented data is easy, key by facebook id, let cassandra handle
location. Set replication factor=3 so you don't lose data and can do
consistent but slower read after write when you need to using quorum.
If you are running on AWS you should distr
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