http://wiki.apache.org/cassandra/DistributedDeletes
On Thu, Jun 17, 2010 at 9:10 AM, Amir amir7...@yahoo.com wrote:
Hi All,
I'm running a benchmark on Cassandra while using a benchmark client which I've
written myself.
I'm running the following scenario:
One Cassandra node on the same
I just increased my cluster from 2 to 4 nodes, and RF=2 to RF=3, using RP.
The tokens seem pretty even on the ring, but two of the nodes are far more
heavily loaded than the others. I understand that there are a variety of
possible reasons for this, but I'm wondering whether anybody has
Hi,
Have you tried nodetool repair (or cleanup) on your nodes ?
On Sun, Jun 20, 2010 at 4:16 PM, James Golick jamesgol...@gmail.com wrote:
I just increased my cluster from 2 to 4 nodes, and RF=2 to RF=3, using RP.
The tokens seem pretty even on the ring, but two of the nodes are far more
I ran cleanup on all of them and the distribution looked roughly even after
that, but a couple of days later, it's looking pretty uneven.
On Sun, Jun 20, 2010 at 10:21 AM, Jordan Pittier - Rezel
jor...@rezel.netwrote:
Hi,
Have you tried nodetool repair (or cleanup) on your nodes ?
On Sun,
Node 1 should have token 42535295865117307932921825928971026432 and node
3 127605887595351923798765477786913079296 according to the formula i *
(2**127 / 4) for i=1..4
On Sun, Jun 20, 2010 at 4:31 PM, James Golick jamesgol...@gmail.com wrote:
I ran cleanup on all of them and the distribution
I know, but that's not a big enough difference to warrant the huge amount of
difference in load.
On Sun, Jun 20, 2010 at 10:53 AM, Jordan Pittier - Rezel
jor...@rezel.netwrote:
Node 1 should have token 42535295865117307932921825928971026432 and node
3 127605887595351923798765477786913079296
As I alluded to in another post, we just moved from 2-4 nodes. Since then,
the cluster has been incredibly
The memory problems I've posted about before have gotten much worse and our
nodes are becoming incredibly slow/unusable every 24 hours or so. Basically,
the JVM reports that only 14GB is
I don't have the answer but if you provide jmap output, cfstats output that
may help.
Are you using mmap files?
Do you see swap? Gc in the logs?
On Jun 20, 2010 7:25 PM, James Golick jamesgol...@gmail.com wrote:
As I alluded to in another post, we just moved from 2-4 nodes. Since then,
the
unsubscribe
I am trying to get the bulk loading example to work for simple CF.
ListColumnFamily columnFamilies = new LinkedListColumnFamily();
while(...) {
String[] fields = ...
ColumnFamily columnFamily = ColumnFamily.create(keyspace, family);
long now =
Only one: don't use it if you want performance.
On Sun, Jun 20, 2010 at 11:11 AM, Christian van der Leeden
christian.vanderlee...@googlemail.com wrote:
Hi,
I'm just experimenting and benchmarking cassandra for my use case.
I'm using the fauna/cassandra and fauna/thrift_client. Is there
Thanks for your thoughts. Answers below:
On Sun, Jun 20, 2010 at 2:21 PM, Peter Schuller peter.schul...@infidyne.com
wrote:
The memory problems I've posted about before have gotten much worse and
our
nodes are becoming incredibly slow/unusable every 24 hours or so.
Basically,
the JVM
uh. wow. I just read up on all this again, and read the code, and I'm a
little surprised, to be honest.
There's no attempt to manage the total size of the mmap()'d IO, and the
default buffer allocation is quite sizeable. So, basically, if you have any
data, over time, you will run out of memory,
Jake,
I will be interested in this functionality
Carlos
From: Jake Luciani [jak...@gmail.com]
Sent: Friday, June 18, 2010 10:57 PM
To: user@cassandra.apache.org
Subject: Re: Lucandra issues
Hi Maxim,
Lucandra doesn't support numeric queries quite yet. A
Seeing as I will be using a different ORM, would it make more sense to use
pylons over django?
From what I understand, pylons assumes less as compared to django.
I opened #1214 about this. I hope people will take a look and provide their
feedback.
https://issues.apache.org/jira/browse/CASSANDRA-1214
Thanks.
On Sun, Jun 20, 2010 at 3:58 PM, James Golick jamesgol...@gmail.com wrote:
uh. wow. I just read up on all this again, and read the code, and I'm a
Hi
I was wondering if Cassandra has any plans for supporting atomic compare and
swap operation on a column value? Compare could be on timestamp for the column
or the column value itself and the write of course is on the column value + a
new timestamp. If there are no plans on supporting such
No.
On Sun, Jun 20, 2010 at 2:42 PM, Rishi Bhardwaj khichri...@yahoo.com wrote:
Hi
I was wondering if Cassandra has any plans for supporting atomic compare and
swap operation on a column value? Compare could be on timestamp for the
column or the column value itself and the write of course is
I recently looked into this and came to the same conclusion, but I'm not an
expert in either Django or Pylons so I'd also be interested in hearing what
someone with more Python experience would say.
On Sun, Jun 20, 2010 at 1:42 PM, S Ahmed sahmed1...@gmail.com wrote:
Seeing as I will be using a
A lot of the magic that Django brings to the table is derived from the ORM. If
you're skipping that then Pylons likely makes more sense.
--Joe
On Jun 20, 2010, at 5:08 PM, Charles Woerner charleswoer...@gmail.com wrote:
I recently looked into this and came to the same conclusion, but I'm not
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