Hello!
we are looking into concurent schema updates (when multiple instances of
application create CFs at once.
at the http://wiki.apache.org/cassandra/MultiTenant there's open ticket
1391, it is said it is still open.
however, in jura is said "1.1.0 is fixed"
can schema be updated asynchrously
Hello
looks like http://www.apache.org/dist/cassandra/debian is missing
(HTTP 404), may be cassandra moved to other debian repository?
Hi,
The url you mentioned is OK: e.g.
http://www.apache.org/dist/cassandra/debian/dists/11x/
ruslan usifov a écrit sur 24/08/2012 11:26:11 :
> Hello
>
> looks like http://www.apache.org/dist/cassandra/debian is missing
> (HTTP 404), may be cassandra moved to other debian repository?
no, i got 404 error.
2012/8/24 Romain HARDOUIN :
>
> Hi,
> The url you mentioned is OK: e.g.
> http://www.apache.org/dist/cassandra/debian/dists/11x/
>
>
> ruslan usifov a écrit sur 24/08/2012 11:26:11 :
>
>> Hello
>>
>> looks like http://www.apache.org/dist/cassandra/debian is missing
>> (HTTP 4
Well, "Works for me".
W dniu 24.08.2012 11:43, ruslan usifov pisze:
no, i got 404 error.
2012/8/24 Romain HARDOUIN :
Hi,
The url you mentioned is OK: e.g.
http://www.apache.org/dist/cassandra/debian/dists/11x/
ruslan usifov a écrit sur 24/08/2012 11:26:11 :
Hello
looks like http://www.a
Hm, from erope servere cassandra packages prestn, but from russian
servers absent.
2012/8/24 Michal Michalski :
> Well, "Works for me".
>
> W dniu 24.08.2012 11:43, ruslan usifov pisze:
>
>> no, i got 404 error.
>>
>> 2012/8/24 Romain HARDOUIN :
>>>
>>>
>>> Hi,
>>> The url you mentioned is OK: e.
Hi,
I have upgraded cassandra on ring and one node successfully upgraded
first node. On second node I got following error. Please help me to
resolve this issue.
[root@X]# /u/cassandra/apache-cassandra-1.1.4/bin/cassandra -f
xss = -ea
-javaagent:/u/cassandra/apache-cassandra-1.1.4/bin/..
> - we are running on production linux VMs (not ideal but this is out of our
> hands)
Is the VM doing anything wacky with the IO ?
> As part of a DR exercise, we killed all 6 nodes in DC1,
Nice disaster. Out of interest, what was the shutdown process ?
> We noticed that data that was written an
Hi, I have an application that will be very dormant most of the time
but will need high-bursting a few days out of the month. Since we are
deploying on EC2 I would like to keep only one Cassandra server up
most of the time and then on burst days I want to bring one more
server up (with more RAM and
> I was trying to find hector examples where we search for second column in a
> composite column, but I couldn't find any good one. Im not sure if its
> possible.…if you have any do have any example please share.
It's not. When slicing columns you can only return one contiguous range.
> Anyway
If this is still a test environment can you try to reproduce the fault ? Or
provide some more details on the sequence of events?
If you still have the logs around can you see if any ERROR level messages were
logged?
Cheers
-
Aaron Morton
Freelance Developer
@aaronmorton
http://
Hi,
AbstractHashedPartitioner defines a maximum of 2**127 hence an order of
(2**127)+1.
I'd say that tokens of such partitioners are intented to be distributed in
Z/(127), hence a maximum of (2**127)-1.
Could there be a mix up between maximum and order?
This is a detail but could someone confirm
Hi !
I'm preparing the test below. I've found a lot of information about
deadnode replacements and adding extra nodes to increase capacity, but
didn't find anything about this segementation issue. Anyone that can
share experience/ideas ?
Setup:
Cluster with 6 nodes {A,B,C,D,E,F}, RF=6, using
Thank you Aaron & Guillermo,
I find composite columns very confusing :(
To reconfirm ,
1. we can only search for columns range with the first component on the
composite column.
2. After specifying a range for the first component, we cannot further filter
for the second component. I found
hi,
kindly help in resolving the following problem with respect to super column
family.
i am using cassandra version 1.1.3
i created two super families namely "UserMovies" and "movieSimilarity" in
cassandra using cassandra-cli:
*create column family movieSimilarity with column_type = 'Super'
and ke
Hi,
Suppose I have a column family to associate a user to a dynamic list of items.
I want to store 5-10 key information about the item, & no specific sorting
requirements are there.
I have two options
A) use composite columns
UserId1 : {
: = Betty Crocker,
: = Cake
: = 5
: = Nutella,
: = C
First is better choice, each filed can be updated separately(write only).
Second you have to take care json yourself (read first-modify-then write).
On Fri, Aug 24, 2012 at 5:45 PM, Roshni Rajagopal <
roshni.rajago...@wal-mart.com> wrote:
> Hi,
>
> Suppose I have a column family to associate a us
It looks like the /cassandra directory is missing from most of the
mirrors right now. The only mirror that I've found to work is
http://www.eu.apache.org
On Fri, Aug 24, 2012 at 2:53 AM, ruslan usifov wrote:
> Hm, from erope servere cassandra packages prestn, but from russian
> servers absent.
>
On Fri, Aug 24, 2012 at 5:00 AM, Adeel Akbar
wrote:
> I have upgraded cassandra on ring and one node successfully upgraded first
> node. On second node I got following error. Please help me to resolve this
> issue.
>
> [root@X]# /u/cassandra/apache-cassandra-1.1.4/bin/cassandra -f
> xss = -ea
On Thu, Aug 23, 2012 at 6:54 PM, Richard Crowley wrote:
> I have a three-node cluster running Cassandra 1.0.10. In this cluster
> is a keyspace with RF=3. I *updated* a column family via Astyanax to
> add a column definition with an index on that column. Then I ran a
> backfill to populate the
What does List my_column_family in CLI show on all the nodes?
Perhaps the syntax u're using isn't correct? You should be getting the
same data on all the nodes irrespective of which node's CLI you use.
The replication factor is for redundancy to have copies of the data on
different nodes to help i
Sadly, I don't think we can get much.
All I know about the repro is that it was around a node restart. I've
just tried that and everything's fine. I see now ERROR level messages in
the logs.
Clearly, some other conditions are required but we don't know them as yet.
Many thanks,
Edward
On 1
So I'm at the point of updating the keyspaces from Simple to NetworkTopology
and I'm not sure if the changes are being accepted using Cassandra-cli.
I issue the change:
[default@EBonding] update keyspace EBonding
... with placement_strategy =
'org.apache.cassandra.locator.NetworkTopologyStr
Hi Amit,
> 1) how to manually add data into it using cassandra-cli. i tried this
> type, but got the error:
> set UserMovies['user1']['userid'] = 'USER-1';
> but got error message: *Column family movieconsumed may only contain
> SuperColumns*
>
I can't really see why you need a SC here
That's interesting can you do describe cluster?
On Fri, Aug 24, 2012 at 12:11 PM, Bryce Godfrey
wrote:
> So I’m at the point of updating the keyspaces from Simple to
> NetworkTopology and I’m not sure if the changes are being accepted using
> Cassandra-cli.
>
> ** **
>
> I issue the change:*
On Fri, Aug 24, 2012 at 4:33 AM, Amit Handa wrote:
> kindly help in resolving the following problem with respect to super column
> family.
> i am using cassandra version 1.1.3
Well, THERE's your problem... ;D
But seriously.. as I understand project intent, super columns will
ultimately be a weir
If you are starting out new use composite column names/values or you could
also use JSON style doc as a column value.
On Fri, Aug 24, 2012 at 2:31 PM, Rob Coli wrote:
> On Fri, Aug 24, 2012 at 4:33 AM, Amit Handa wrote:
> > kindly help in resolving the following problem with respect to super
>
Thanks, Aaron, for your reply - please see the inline.
On 24 Aug 2012, at 11:04, aaron morton wrote:
>> - we are running on production linux VMs (not ideal but this is out of our
>> hands)
> Is the VM doing anything wacky with the IO ?
Could be. But I thought we would ask here first. This is
So I've read: http://www.datastax.com/dev/blog/bulk-loading
Are there any tips for using sstableloader /
SSTableSimpleUnsortedWriter to migrate time series data from a our old
datastore (PostgreSQL) to Cassandra? After thinking about how
sstables are done on disk, it seems best (required??) to wr
Hello -- perhaps someone could provide me some clarification about this.
From:
http://www.datastax.com/docs/1.1/dml/data_consistency#data-consistency
"If consistency is top priority, you can ensure that a read will always reflect
the most recent write by using the following formula:
(nodes
On Fri, Aug 24, 2012 at 10:55 PM, Philip O'Toole wrote:
> But consider this. Say I have a replication factor of 3. I request a
> QUORUM write, and it fails because the write only reaches 1 node. Perhaps
> there is a temporary partition in my cluster. Now, asynchronously, a
> different reader perf
Hi Derek -- thanks. More inline.
On Fri, Aug 24, 2012 at 11:52:49PM -0600, Derek Williams wrote:
> On Fri, Aug 24, 2012 at 10:55 PM, Philip O'Toole wrote:
>
> > But consider this. Say I have a replication factor of 3. I request a
> > QUORUM write, and it fails because the write only reaches 1 no
Yes
[default@unknown] describe cluster;
Cluster Information:
Snitch: org.apache.cassandra.locator.PropertyFileSnitch
Partitioner: org.apache.cassandra.dht.RandomPartitioner
Schema versions:
9511e292-f1b6-3f78-b781-4c90aeb6b0f6: [10.20.8.4, 10.20.8.5, 10.20.8.1,
10.20.8.2, 10.20.8
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