I don't use php so I don't know the method but
http://wiki.apache.org/cassandra/API
get
ColumnOrSuperColumn get(string keyspace, string key, ColumnPath column_path,
ConsistencyLevel consistency_level)
Get the Column or SuperColumn at the given column_path. If no value is present,
Thanks Justus,
I'll check it
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All,
I was wondering if I could get some information (link / pdf) about the new
[column] indices in Cassandra for version 0.7
Thanks a lot,
Carlos
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Ok I deal with it. There was a bug in phpcassa and now I can make it that
way:
get-('client', UUID::convert('2a3909c0-a612-11df-b27e-346336336631',
UUID::FMT_STRING, UUID::FMT_BINARY))
If someone is using phpcassa and want to make it work, please give me a sign
and I'll post the solution.
--
Jonathan Ellis jbellis at gmail.com writes:
Right, row stats in 0.6 are just what I've seen during the
compactions that happened to run since this node restarted last.
0.7 has persistent (and more fine-grained) statistics.
I'm guessing (haven't read this part of the source) that the
if you turn off framed mode (by setting the the transport size to 0)
then you need to use the unframed option with cli
On Thu, Aug 12, 2010 at 10:20 PM, Mark static.void@gmail.com wrote:
On 8/12/10 9:14 PM, Jonathan Ellis wrote:
Works fine here.
bin/cassandra-cli --host localhost --port
David,
This much like the behavior I saw... I thought that I might be doing something
wrong, but I haven't had the time to check out other clients iteration
implementations. What client are you using?
-Adam
-Original Message-
From: David McIntosh [mailto:da...@radiotime.com]
Sent:
On 8/13/10 7:09 AM, Jonathan Ellis wrote:
if you turn off framed mode (by setting the the transport size to 0)
then you need to use the unframed option with cli
On Thu, Aug 12, 2010 at 10:20 PM, Markstatic.void@gmail.com wrote:
On 8/12/10 9:14 PM, Jonathan Ellis wrote:
Works
Hi all,
I'm trying to get Pig to read data from a Cassandra cluster, which I thought
trivial since Cassandra already provides me with the CassandraStorage class.
Problem is that once I try executing a simple script like this:
register /path/to/pig-0.7.0-core.jar;register
I'm a little confused on when I should be using TimeUUID vs Epoch/Long
when I want columns ordered by time. I know it sounds strange and the
obvious choice should be TimeUUID but I'm not sure why that would be
preferred over just using the Epoch stamp?
The pretty much seem to accomplish the
As long as time sorting is involved, you'll the same ordering if you
use Epoch/Long
or TimeUUID. The difference is between the ties. If when you insert
two values at
the exact same time, you want to have only one stay, then you want LongType.
If however you don't want to merge such inserts, then
Keys are indexed in Cassandra but are they ordered? If so, how?
Do Key Slices work like Range Slices for columns.. ie I can give a start
and end range? It seems like if they are not ordered (which I think is
true) then performing KeyRanges would be somewhat inefficient or at
least not as
Benjamin Black b at b3k.us writes:
3. I waited for the data to replicate, which didn't happen.
Correct, you need to run nodetool repair because the nodes were not
present when the writes came in. You can also use a higher
consistency level to force read repair before returning data, which
On Fri, Aug 13, 2010 at 9:48 AM, Oleg Anastasjev olega...@gmail.com wrote:
Benjamin Black b at b3k.us writes:
3. I waited for the data to replicate, which didn't happen.
Correct, you need to run nodetool repair because the nodes were not
present when the writes came in. You can also use a
!
So long story short you can give a start/end range when using TimeUUID?
For example I am storing a bunch of records keyed by the current date
20100813. Each column is a TimeUUID. If I wanted to get all the
columns that between some arbitrary time.. say 6am - 9am I can get that?
Using Long
That error is coming from the frontend: the jars must also be on the local
classpath. Take a look at how contrib/pig/bin/pig_cassandra sets up
$PIG_CLASSPATH.
-Original Message-
From: Christian Decker decker.christ...@gmail.com
Sent: Friday, August 13, 2010 11:30am
To:
range when using TimeUUID?
For example I am storing a bunch of records keyed by the current date
20100813. Each column is a TimeUUID. If I wanted to get all the columns
that between some arbitrary time.. say 6am - 9am I can get that?
Using Long I can just use a start of 12817044 and a finish
Wow, that was extremely quick, thanks Stu :-)
I'm still a bit unclear on what the pig_cassandra script does. It sets some
variables (PIG_CLASSPATH for one) and then starts the original pig binary
but injects some libraries in it (libthrift and pig-core) but strangely not
the cassandra loadfunc,
Hi,
For those of you using Munin to monitor Cassandra's JMX stats I wondered if
anyone had figured out how to get hourly graphs. By default we are getting
daily, weekly, monthly, yearly but for our performance testing we really
need hourly and looking on the message boards we can't figure out how
I was wondering if there will be a document on how to do it?
Sent from my iPhone
yes. NEWS.txt
On Fri, Aug 13, 2010 at 10:31 AM, Claire Chang
cla...@merchantcircle.com wrote:
I was wondering if there will be a document on how to do it?
Sent from my iPhone
--
Jonathan Ellis
Project Chair, Apache Cassandra
co-founder of Riptano, the source for professional Cassandra
Is there some way I can count the number of rows in a CF.. CLI, MBean?
Gracias
added key to in_memory_compaction_limit threshold log:
logger.info(String.format(Compacting large row %s (%d
bytes) incrementally,
FBUtilities.bytesToHex(rows.get(0).getKey().key), rowSize));
On Wed, Aug 11, 2010 at 4:11 PM, Edward Capriolo edlinuxg...@gmail.com wrote:
Hello all,
not without fetching all of them with get_range_slices
On Fri, Aug 13, 2010 at 10:37 AM, Mark static.void@gmail.com wrote:
Is there some way I can count the number of rows in a CF.. CLI, MBean?
Gracias
--
Jonathan Ellis
Project Chair, Apache Cassandra
co-founder of Riptano, the source
On 8/13/10 10:44 AM, Jonathan Ellis wrote:
not without fetching all of them with get_range_slices
On Fri, Aug 13, 2010 at 10:37 AM, Markstatic.void@gmail.com wrote:
Is there some way I can count the number of rows in a CF.. CLI, MBean?
Gracias
Im guessing you would
because it would work amazingly poorly w/ billions of rows. it's an
antipattern.
On Fri, Aug 13, 2010 at 10:50 AM, Mark static.void@gmail.com wrote:
On 8/13/10 10:44 AM, Jonathan Ellis wrote:
not without fetching all of them with get_range_slices
On Fri, Aug 13, 2010 at 10:37 AM,
On 8/13/10 10:52 AM, Jonathan Ellis wrote:
because it would work amazingly poorly w/ billions of rows. it's an
antipattern.
On Fri, Aug 13, 2010 at 10:50 AM, Markstatic.void@gmail.com wrote:
On 8/13/10 10:44 AM, Jonathan Ellis wrote:
not without fetching all of them with
Hmm, the example code there may not have been run in distributed mode recently,
or perhaps Pig performs some magic to automatically register Jars containing
classes directly referenced as UDFs.
-Original Message-
From: Christian Decker decker.christ...@gmail.com
Sent: Friday, August 13,
Still I get an exception which I cannot explain where it comes
from (http://pastebin.com/JYfSSfny)
Which version of Cassandra are you using? The 0.6 series requires that a valid
storage-conf.xml is distributed with the job to specify
connection/partitioner/etc information, but trunk/0.7-beta2
Should we close https://issues.apache.org/jira/browse/CASSANDRA-653
then? Fetching a count of all rows is just a specific instance of
fetching the count of a range or rows.
I spoke to a programmer at the summit who was working on this ticket
mainly as a way of getting familiar with the codebase.
Happy Friday the 13th. Are you feeling lucky? I know I am.
Ok, first off, a disclaimer.
As the suffix on the version indicates this is *beta* software. If you
run off and upgrade a production server with this there is a very good
chance that you are going to be
On Fri, 2010-08-13 at 09:51 -0700, Benjamin Black wrote:
My recommendation is to leave Autobootstrap disabled, copy the
datafiles over, and then run cleanup. It is faster and more reliable
than streaming, in my experience.
What is less reliable about streaming?
Bill
Adam,
I'm using my own code to iterate that is similar to what Dave Viner posted
except in C#. Given that it works in 0.6.3 I'd like to think that the code
is ok unless this type of iteration isn't supported. I was going to try
iterating using tokens today but it turns out it's not so easy to
Well, it's a bad idea, except when it isn't. I think I'm okay with
our api evolving to handle more corner cases.
It's true that it runs the risk of encouraging bad design from new users though.
On Fri, Aug 13, 2010 at 1:07 PM, Gary Dusbabek gdusba...@gmail.com wrote:
Should we close
Number of bugs I've hit doing this with scp: 0
Number of bugs I've hit with streaming: 2 (and others found more)
Also easier to monitor progress, manage bandwidth, etc. I just prefer
using specialized tools that are really good at specific things. This
is such a case.
b
On Fri, Aug 13, 2010
My recommendation is to leave Autobootstrap disabled, copy the
datafiles over, and then run cleanup. It is faster and more reliable
than streaming, in my experience.
I thought about copying da Data manually. However if I have a running
environment
and add a node (or replace a broken one), how
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