2011/3/6 aaron morton aa...@thelastpickle.com
Your node is under memory pressure, after the GC there is still 5.7GB in
use. In fact it looks like memory usage went up during the GC process.
Can you reduce the memtable size, caches or the number of CF's or increase
the JVM size? Also is this
Hi Roshan,
could you please post a small sample from your yaml file?
As documentation of indexes is quite sparse, we're grateful for any
working example.
Cheers
Jürgen
Am 04.03.2011 19:27, schrieb Roshan Dawrani:
On Fri, Mar 4, 2011 at 11:52 PM, Jürgen Link
juergen.l...@googlemail.com
Hi,
Sure. Here is a sample of how we define it at the end of cassandra.yaml.
In the keyspace MyApp, it defines a column family MyUser, that has secondary
indexes on 2 String columns - firstname, and lastname.
Does it help?
On Sun, Mar 6, 2011 at 4:54 PM, Roshan Dawrani roshandawr...@gmail.comwrote:
--
keyspaces:
- name: firstname
validator_class: UTF8Type
On 03/06/2011 08:08 AM, user-h...@cassandra.apache.org wrote:
Hi! This is the ezmlm program. I'm managing the
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To confirm that you would like
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Do you have row cache enabled? Disable it. If it fixes it and you want
it, re-enable but consider row sizes and the cap on the cache size..
--
/ Peter Schuller
If its determined that this is due to a very large row, what are my options?
Thanks
On 3/5/11 7:11 PM, aaron morton wrote:
First question is which version are you running ? Am guessing 0.6
something
If you have OOM in the compaction thread it may be because of a very
large row. The CF
What would be a good strategy to store large text content/(blog posts
of around 1500-3000 characters) in cassandra? I need to store these
blog posts along with their metadata like bloggerId, blogTags. I am
looking forward to store this data in a single row giving each
attribute a single column.
Hi,
Please, can you help with the following? it will lead us in some design
decisions.
Are you familiar with Cassandra cluster that is installed in datacenters
that are spread across the WAN? can you comment on the perfromance of such
installation?
What is the largest size of of such a cluster
Hi Roshan,
thanks for your post. I quickly ran over it, and the only difference I
can actually see is the compare_with type (we use TimeUUIDType).
Any other suggestions, anyone?
Am 06.03.2011 12:24, schrieb Roshan Dawrani:
Hi,
Sure. Here is a sample of how we define it at the end of
Under 0.6 am not sure off the top of my head. Would need to dig into it, its
probably been discussed here though.
Check the row size and let us know what version you are using first.
Aaron
On 7/03/2011, at 5:50 AM, Mark static.void@gmail.com wrote:
If its determined that this is due to a
Sounds reasonable, one CF for the blog post one CF for the comments. You could
also use a single CF if you will often read the blog and the comments at the
same time. The best design is the one that suits how your app works, try one
and be prepared to change.
Note that counters are only in the
Sorry, I forgot to mention. I am running 0.6.6
On 3/6/11 3:27 PM, Aaron Morton wrote:
Under 0.6 am not sure off the top of my head. Would need to dig into
it, its probably been discussed here though.
Check the row size and let us know what version you are using first.
Aaron
On 7/03/2011, at
On Sun, Mar 6, 2011 at 4:49 PM, Jürgen Link juergen.l...@googlemail.comwrote:
Hi Roshan,
thanks for your post. I quickly ran over it, and the only difference I can
actually see is the compare_with type (we use TimeUUIDType).
Any other suggestions, anyone?
You want to add an index on a CF
We're in a bit of a predicament, we have an e-music store currently built in
PHP using codeigniter/mysql...
The current system has 100+K users and a decent song collection. Over the last
few months I've been playing with
Cassandra... needless to say I'm impressed but I have a few questions.
Regarding PHP performance with Cassandra,
THRIFT-638https://issues.apache.org/jira/browse/THRIFT-638was
recently resolved and it shows some big performance improvements.
I'll
be upgrading the Thrift package that ships with phpcassa soon to include
this fix, so you may want to compare performance
Thanks for the answers, Dan, Aaron.
...
Ok, so one question is, if I haven't made any writes at all, can I decommission
without delay? (Is there a force drop option or something, or will the
cluster recognize the lack of writes)?
I may be able to segregate writes to the reference collection
Info on secondary indexes
http://www.datastax.com/dev/blog/whats-new-cassandra-07-secondary-indexes
Some answers to your other questions are also in there as well as a discussion
about the limitations.
Hope that helps.
Aaron
On 7/03/2011, at 3:54 PM, Mark wrote:
I haven't looked at
Thanks Aaron!!
I didnt knew about the upcoming facility for inbuilt counters. This
sounds really great for my use-case!! Could you let me know where can
I read more about this, if this had been blogged about, somewhere ?
I'll go forward with the one (entire)blog per column design.
Thanks
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