Hi
I have just written a little note on how to monitor cassandra...
http://vineetdaniel.me/2011/03/26/monitoring-cassandra-with-jmx/
I hope it helps the community.
Regards
Vineet Daniel
Cell : +918106217121
Websites :
Blog http://vineetdaniel.blogspot.com |
Linkedinhttp
...in process of using nagios to monitor three servers. Will post updates
shortly.
Regards
Vineet Daniel
Cell : +918106217121
Websites :
Blog http://vineetdaniel.blogspot.com |
Linkedinhttp://in.linkedin.com/in/vineetdaniel
| Twitter https://twitter.com/vineetdaniel
On Fri, Mar 25
)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:636)
Regards
Vineet Daniel
Cell : +918106217121
Websites :
Blog http://vinetedaniel.blogspot.com |
Linkedinhttp://in.linkedin.com/in/vineetdaniel
Hi
I was using 'access_logs' as column family name changed it to Accesslogs and
it worked. May be cassandra doesn't like underscores and small letters.
Regards
Vineet Daniel
Cell : +918106217121
Websites :
Blog http://vinetedaniel.blogspot.com |
Linkedinhttp://in.linkedin.com
.
Regards
Vineet Daniel
Cell : +918106217121
Websites :
Blog http://vinetedaniel.blogspot.com |
Linkedinhttp://in.linkedin.com/in/vineetdaniel
| Twitter https://twitter.com/vineetdaniel
On Mon, Sep 20, 2010 at 3:35 PM, aaron morton aa...@thelastpickle.comwrote:
Here is a discussion about
of is that may be
creating processes/threads again will consume more memory than having idle
threads.
Regards
Vineet Daniel
Cell : +918106217121
Websites :
Blog http://vinetedaniel.blogspot.com |
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| Twitter https://twitter.com/vineetdaniel
On Sat
Hi Gurpreet
What is the output of nodetool -h hostname/IP streams --( to see what
is going on between the nodes) . If you dont see anything happening try
switching off firewall or iptables.
Regards
Vineet Daniel
Cell : +918106217121
Websites :
Blog http://vinetedaniel.blogspot.com
Hi
When is this happening I mean is Cassandra idle or application is
inserting/reading values from it .are you running any map/reduce job at
that time.
Regards
Vineet Daniel
Cell : +918106217121
Websites :
Blog http://vinetedaniel.blogspot.com |
Linkedinhttp://in.linkedin.com
not even pay-as-you go types. I'd really appreciate if anybody can share
information on such hosting providers.
Vineet Daniel
Cell : +918106217121
Websites :
Blog http://vinetedaniel.blogspot.com |
Linkedinhttp://in.linkedin.com/in/vineetdaniel
| Twitter https://twitter.com/vineetdaniel
If I am correct than you need to restart cassandra whenever you adding a new
KeySpace. Thats another concern.
Vineet Daniel
Cell : +91-8106217121
Websites :
Blog http://vinetedaniel.blogspot.com |
Linkedinhttp://in.linkedin.com/in/vineetdaniel
| Twitter https://twitter.com
.
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Regards
Vineet Daniel
+918106217121
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On Thu, Sep 2, 2010 at 10:00 PM, Mike Peters cassan...@softwareprojects.com
wrote:
Cassandra doesn't support adhoc queries, like what you're describing
I recommend looking
Query : Why are you sorting AFAIK cassandra sorts the keys by itself if you
are using ordered partitioning. And how do you store data pertaining to
single user but having several GUID's to attach with.
___
Vineet Daniel
Hi
What is the expected release date for 0.7 and what will be the feature
specifications for it ?
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Vineet Daniel
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Thanks David and Peter.
Is there any way to view the content of this file.
___
Vineet Daniel
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On Fri, May 7, 2010 at 4:24 PM, David Strauss da...@fourkitchens.comwrote:
On 2010-05-07 10:51
point, like what are the implications, why do we need to identify etc.
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Vineet Daniel
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On Fri, May 7, 2010 at 4:28 PM, David Strauss da...@fourkitchens.comwrote:
On 2010-05-07 10:55
For more details have a look here :
http://wiki.apache.org/cassandra/Streaming
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Vineet Daniel
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On Wed, May 5, 2010 at 9:34 PM, Weijun Li weiju...@gmail.com wrote:
Thank you Jonathan
Hi
Just out of curiosity want to know why streaming is done with 32MB chunks
and not with 16 or 64 MB chunks. Any specific reasons behind 32 MB or its
just like that ?
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Vineet Daniel
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Only major compactions can clean out obsolete tombstones.
On Tue, May 4, 2010 at 9:59 AM, Jonathan Ellis jbel...@gmail.com wrote:
On Mon, May 3, 2010 at 8:45 PM, Kauzki Aranami kazuki.aran...@gmail.com
wrote:
Let me rephrase my question.
How does Cassandra deal with bloom filter's false
As you havent specified all the details pertaining to filters and your data
layout (structure) at a very high level what i can suggest is that you need
to create a seperate CF for each filter.
On Sat, May 1, 2010 at 5:04 PM, Rakesh Rajan rakes...@gmail.com wrote:
I am evaluating cassandra to
is more irrelevant.
Regards
Vineet Daniel
If R + W N, where R, W, and N are respectively the read replica count, the
write replica count, and the replication factor, all client reads will see
the most recent write.
On Tue, May 4, 2010 at 4:39 PM, vineet daniel vineetdan...@gmail.comwrote:
Hi
In a cluster of cassandra if we
Hi
Can anyone please tell me if we can have duplicate keys in Super Column
Family, if now how can we represent this : -
Article and Category Mapping
clientOne.insert(:ArticleCategory, 12, {ArticleID = 123})
12, {ArticleID =
124})
can you please share or tell whether
this can be improved or not. I am using default configuration of cassandra
and its a single node setup.
Thanks
Vineet Daniel
and not by Canssandra.
I recommend using 2 boxes if possible, one for running the benchmark tool
against the other which will run Cassandra (both boxes have to be in the
same LAN).
On Mon, Apr 12, 2010 at 1:55 PM, vineet daniel vineetdan...@gmail.comwrote:
Hi
A little while ago I tried cassandra's read n
is caused by
Cassandra or Pandra if you do not have raw Cassandra performance
numbers for your setup?
On Mon, Apr 12, 2010 at 5:51 AM, vineet daniel vineetdan...@gmail.com
wrote:
I dont think it would be a good idea not to use pandra for benchmarks as
we
are going to use pandra for our
How to handle same usernames. Otherwise seems fine to me.
On Sun, Apr 11, 2010 at 6:17 PM, Dop Sun su...@dopsun.com wrote:
Hi,
As far as I can see it, the Cassandra API currently supports criterias on:
Token – Key – Super Column Name (if applicable) - Column Names
I guess Token is
problem.
On Sun, Apr 11, 2010 at 6:12 AM, vineet daniel vineetdan...@gmail.com
wrote:
How to handle same usernames. Otherwise seems fine to me.
On Sun, Apr 11, 2010 at 6:17 PM, Dop Sun su...@dopsun.com wrote:
Hi,
As far as I can see it, the Cassandra API currently supports criterias
of actually unique identifiers for users.
On Sun, Apr 11, 2010 at 11:12 AM, vineet daniel vineetdan...@gmail.com
wrote:
its not a problem its a scenario, which we need to handle. And all I am
trying to do is to achieve what is not there with API i.e a workaroud.
On Sun, Apr 11, 2010 at 11:06 PM
model and
about how we are explaining it is best used.
On Sun, Apr 11, 2010 at 11:37 AM, vineet daniel vineetdan...@gmail.com
wrote:
Well my initial idea is to use value as column name, keeping key as an
incremental integer. The discussion after each mail has drifted from this
point which I
and the index data. To perform your query on username
'usr2', you get 'usr2' from UsernameIndex CF, which gives you a set of
ids, and you then get those ids (1 and 2) from the Users CF.
b
On Sun, Apr 11, 2010 at 11:37 AM, vineet daniel vineetdan...@gmail.com
wrote:
Well my initial idea
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