Hmm .. it would be great if the supercolumns API remains. Also I
believe we can replace the full functionality of supercolumns through
composite column names in case this issue (related to reading multiple
column ranges) is
resolved:https://issues.apache.org/jira/browse/CASSANDRA-2710
On Sun, Jan
I am also beginner user in cassandra. Honestly I wonder, if we can download
binary installer from http://cassandra.apache.org/download/ but why we
have to
check out from: svn
http://svn.apache.org/repos/asf/cassandra/trunk/cassandra-trunk ??
What is the deference between them? Can we perform ca
Hi Everybody,
JConsole tells me I've got CompactionReducer threads stacking up, consuming
memory, and never going away. Eventually, my Java process fails because it
can't allocate any more native threads. Here's my setup…
Cassandra 1.0.5 on CentOS 6.0
4 GB of RAM
50 GB SSD HD
Memtable flush t
On Sat, Jan 7, 2012 at 5:42 PM, Rustam Aliyev wrote:
>> My suggestion is simple: don't use any deprecated stuff out there. In
>> practically any case there is a good reason why it's deprecated.
>
>
> SuperColumns are not deprecated.
The supercolumn API will remain:
https://issues.apache.org/jira/
My suggestion is simple: don't use any deprecated stuff out there. In
practically any case there is a good reason why it's deprecated.
SuperColumns are not deprecated.
On Sat Jan 7 19:51:55 2012, R. Verlangen wrote:
My suggestion is simple: don't use any deprecated stuff out there. In
practic
Cassandra would not have access to 'wall' as was is very unix-ish and
Cassandra is written in java so it has to be highly portable across
operating systems.
On Sat, Jan 7, 2012 at 3:01 PM, R. Verlangen wrote:
> " The repair will continue even if you ctrl+c nodetool, it runs on the
> server not
" The repair will continue even if you ctrl+c nodetool, it runs on the
server not the client."
Hmm, didn't know that. Maybe a tweak for the nodetool that just displays a
message after starting: "Started with ..." and some kind of notication
(with "wall") when it's done?
2012/1/7 aaron morton
>
My suggestion is simple: don't use any deprecated stuff out there. In
practically any case there is a good reason why it's deprecated.
I've seen a couple of composite-column vs supercolumn discussions in the
past weeks here: I think a little bit of searching will get you around.
Cheers
2012/1/7
Hi -- Sorry for the delay, and thanks for the response.
Debug didn't print any stack traces and none are in the usual
suspected places...but thanks for that hint. Didn't know that option
existed. The age column is an Integer ... Updating to IntegerType
worked. Thanks.
On Mon, Jan 2, 2012 at
On 01/07/2012 02:38 AM, aaron morton wrote:
Can you provide some context ? e.g. what client are you using ?
Cheers
-
Aaron Morton
Freelance Developer
@aaronmorton
http://www.thelastpickle.com
On 7/01/2012, at 7:29 AM, investtr wrote:
I am trying to understand the composite t
...Don’t waste your money on cigarettes!
http://igaudi.net/new-year.link.php?qugoogleId=62r8
Hello Alexandru,
I just want to have a feel what activity to expect on the cluster.
The load from minor compactions is not overwhelming but it
seems non-negligible.
Maxim
On 1/7/2012 5:12 AM, Alexandru Sicoe wrote:
Hi Maxim,
Why do you need to know this?
Cheers,
Alex
On Sat, Jan 7, 2012 at
Hi,
I have some questions about SSTable compatibility when doing a minor
version upgrade. For example when upgrading from 1.0.3 (Uses version
"hb") to 1.0.6 (uses version "hc").
1. Will I need to upgrade all nodes before performing streaming/repair?
2. Will it be possible to downgrade a node
Hi Maxim,
Why do you need to know this?
Cheers,
Alex
On Sat, Jan 7, 2012 at 10:03 AM, aaron morton wrote:
>
> http://www.datastax.com/docs/1.0/operations/tuning#tuning-compaction
>
>
> -
> Aaron Morton
> Freelance Developer
> @aaronmorton
> http://www.thelastpickle.com
>
> On 7/
http://www.datastax.com/docs/1.0/operations/tuning#tuning-compaction
-
Aaron Morton
Freelance Developer
@aaronmorton
http://www.thelastpickle.com
On 7/01/2012, at 3:17 PM, Maxim Potekhin wrote:
> The subject says it all -- pointers appreciated.
>
> Thanks
>
> Maxim
>
> max memtable size = 128 MB,
This configuration setting is no longer used, see
https://github.com/apache/cassandra/blob/trunk/conf/cassandra.yaml#L203
> I explicitly didn't put JNA on the classpath because I had a hard time
> figuring out how much native memory it would actually need.
Putting
The repair will continue even if you ctrl+c nodetool, it runs on the server
not the client.
Aside from using ops centre you can also look at TP Stats to see when there is
nothing left in the AntiEntropyStage or look for a log messages from the
StorageService that says…
"Repair command #{} co
There is lots of help in the CLI with examples.
help create keyspace;
Cheers
-
Aaron Morton
Freelance Developer
@aaronmorton
http://www.thelastpickle.com
On 7/01/2012, at 11:36 AM, R. Verlangen wrote:
> Try this:
>
> create keyspace testkeyspace;
> update keyspace testkeyspace
>> I am not sure if this is the right place to ask such question.
It is.
>> I read that it is not safe to use Super Column Family.
They are safe to use, but it's good to avoid them if you can.
>> <>Manager_Employee
>> <>#managerID:employeeID
>>
>> And is this the right approach to deal with n
It may be IO, it's a good place to look
http://spyced.blogspot.com/2010/01/linux-performance-basics.html
Look at the logs, when messages are dropped you will see logs from StatusLogger
that include TP stats and some other things.
Cheers
-
Aaron Morton
Freelance Developer
@aaro
Can you provide some context ? e.g. what client are you using ?
Cheers
-
Aaron Morton
Freelance Developer
@aaronmorton
http://www.thelastpickle.com
On 7/01/2012, at 7:29 AM, investtr wrote:
> I am trying to understand the composite type.
> Is this a right way to create a Compo
> It is a sweet documentation but it doesn't help me. I a lower level
> documntation
Read the docs and then read the code to see how it works in pycassa.
Otherwise if you want low level docs the cassandra code is the place to go.
Cheers
-
Aaron Morton
Freelance Developer
@aaron
Hi, I was trying to compile a simple example for connecting to a cassandra
instance using the thrift interface. As a note, I am doing all of this
without access to super user privileges on a linux machine.
I installed thrift and the c++ generator, put the include headers on my
CPLUS_INCLUDE_PATH v
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