I have tried twice to remove myself from this listserv by following the
directions I received when I signed up. Can anyone help me?
Marie-Anne
From: Phil Stanhope [mailto:stanh...@gmail.com]
Sent: Wednesday, September 15, 2010 12:43 PM
To: user@cassandra.apache.org
Subject: Re: OrderPreservi
Hello,
I am going to build an index to join two CFs.
First, we see this index as a CF/SCF. The difference is I don't materialise
it.
Assume we have two tables:
ID_Address(*Id*, address) , Name_ID(*name*, id)
Then,the index is: Name_Address(*name*, address)
When the application tries to query on
My experience for the last question is ... it depends. If you have NO
changes to the store (which I would argue could be abnormal, it's not in a
production environment allowing writes) ... then I you can do a full
range/key scan and get no repeats. Factors that will impact scanning all
keys includ
And what about uniqueness? Can we be sure that we get each row just once?
Thanks.
2010/9/15 Janne Jalkanen
>
> Correct. You can use get_range_slices with RandomPartitioner too, BUT the
> iteration order is non-predictable, that is, you will not know in which
> order you get the rows (RandomPart
Ok, thanks. I'm going with Option 1, and try to steer away from
SuperColumns. That also gives me the option to tweak the caches
depending on the use pattern (User CF will be accessed in a lot of
different ways, not just with relation to Objects).
/Janne
On Sep 14, 2010, at 23:46 , Aaron
Correct. You can use get_range_slices with RandomPartitioner too, BUT
the iteration order is non-predictable, that is, you will not know in
which order you get the rows (RandomPartitioner would probably better
be called ObscurePartitioner - it ain't random, but it's as good as if
it were
This problem still stays unresolved despite numerous restarts to the
cluster. I cant seem to find a way out of this one, and I am not really
looking for a workaround, kinda need this to work if i need to go to
production.
Turned on the ALL logging in log4j, and now I see the following exception
(E
Hi All,
I was under the impression that in order to query with get_range_slices one
has to have a OrderPreservingPartitioner.
Can we do get_range_slices with RandomPartitioner also? I can distinctly
remember I read that(OrderPreservingPartitioner for get_range_slices) in
Cassnadra WIKI but now so
Jonathan,
So it is "safe" to use a column to hold the entire data file assuming there
is enough heap space? Or are there other considerations of which I should
be concerned?
As thrift is used and all data must be loaded into memory (see Wiki), I
should still expect to benefit from breaking the d
If MySQL is faster then use it. I struggled to do side by side comparisons
with Mysql for months until finally realizing they are too different to do
side by side comparisons. Mysql is always faster out of the gate when you
come at the problem thinking in terms of relational databases. Add in
repli
the row-in-memory-during-compaction was fixed some time ago for 0.7
(CASSANDRA-16).
On Wed, Sep 15, 2010 at 10:03 AM, Lucas Nodine wrote:
> Hello Users,
>
> I am planning a system where both metadata and data will be stored. Usually
> it will be small file such as word documents along with some
On Wed, Sep 15, 2010 at 10:10 AM, Matthias L. Jugel wrote:
> Strange, it needed a few attempts before they actuallyfound each other with
> several UP and downs
> Now the node started bootstrapping, finally. It should be noted in the docs
> that this is a blocker. One expects that they pick up af
On Wed, Sep 15, 2010 at 09:17, Sandor Molnar wrote:
> Hello guys!
>
> I just started researching today whether we can use Cassandra in our software
> or not and I need to know if it is possible to use embedded Cassandra in
> Jboss somehow. I googled it and I found several pages like
> http://wik
Strange, it needed a few attempts before they actuallyfound each other with
several UP and downs
Now the node started bootstrapping, finally. It should be noted in the docs
that this is a blocker. One expects that they pick up after finding each other
again as the docs say be patient.
Leo.
On
Hello Users,
I am planning a system where both metadata and data will be stored. Usually
it will be small file such as word documents along with some specific data
about the file. Sometimes, there will be a large file, possibly a few
hundred meg - a gig such as video. I have read a lot about su
Hello guys!
I just started researching today whether we can use Cassandra in our software
or not and I need to know if it is possible to use embedded Cassandra in Jboss
somehow. I googled it and I found several pages like
http://wiki.apache.org/cassandra/StorageProxy
http://wiki.apache.org/cassa
The source node going down (whether it was really down/unavailable or
a FD false positive doesn't matter) will prevent bootstrap from
completing. You'll have to restart the new node.
On Wed, Sep 15, 2010 at 5:09 AM, Matthias L. Jugel wrote:
> Hi,
>
> I would like to extend our cassandra system by
2 billion.
In 0.6 (but not 0.7) there is also a 2GB row size limitation.
On Wed, Sep 15, 2010 at 1:43 AM, Mark Zitnik wrote:
> HI
>
> What is the max columns number in a key that cassandra supports.
>
> Thanks
> -Mark Zitnik
>
--
Jonathan Ellis
Project Chair, Apache Cassandra
co-founder of R
Hi,
I would like to extend our cassandra system by another node. It contains about
800GB data right now. I have set up another host and installed cassandra (both
0.6.3). The new cassandra node starts up and contacts the first to receive
"load info" and then tries to receive the bootstrap token:
> But to be honest I'm pretty disappointed that Cassandra doesn't really
> scale linearly (or "semi-linearly" :)) when adding new machines. I
It really should scale linearly for this workload unless I have missed
something important (in which case I hope someone will chime in). But
note that you a
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