to count the keys if I don't
know the actual number of keys in my Cassandra database? Please help me
Prakrati Agrawal | Developer - Big Data(ID)| 9731648376 | www.mu-sigma.com
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information
to
1_2012/05/24, then I got all the keys even which are not in my range like
67_2012/05/23 and 54_2012/05/28. I am using Thrift API.
Please help me as I want only the columns of 1_2012/05/24, 1_2012/05/25 ,
1_2012/05/26 and 1_2012/05/27.
Prakrati Agrawal | Developer - Big Data(ID)| 9731648376
Please could you tell me how to tweak my data model to rely on 2nd index ?
Thank you
Prakrati Agrawal | Developer - Big Data(ID)| 9731648376 | www.mu-sigma.com
From: Pierre Chalamet [mailto:pie...@chalamet.net]
Sent: Monday, May 28, 2012 3:31 PM
To: user@cassandra.apache.org
Subject: Re: Doubt
Dear all
I am trying to add a new node to the Cassandra cluster. In all the
documentations available on net it says to set the auto bootstrap property in
cassandra.yaml to true but I am not finding the property in the file. Please
help me
Thanks and Regards
Prakrati Agrawal | Developer - Big
Prakrati Agrawal | Developer - Big Data(ID)| 9731648376 | www.mu-sigma.com
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Dear all,
I added a new node to my 1 node Cassandra cluster. Now I want to find out
whether it is added successfully or not. Also do I need to restart the already
running node after entering the seed value. Please help me.
Thanks and Regards
Prakrati Agrawal | Developer - Big Data(ID
me
Thanks and Regards
Prakrati Agrawal | Developer - Big Data(ID)| 9731648376 | www.mu-sigma.com
This email message may contain proprietary, private and confidential
information. The information transmitted is intended only for the person(s) or
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Hi,
I am using Thrift API and I am not able to find anything on the internet about
how to configure it for multiple nodes. I am not using any proper client like
Hector.
Prakrati Agrawal | Developer - Big Data(ID)| 9731648376 | www.mu-sigma.com
From: R. Verlangen [mailto:ro...@us2.nl]
Sent
Ye I know I am trying to reinvent the wheel but I have to. The requirement is
such that I have to use Java Thrift API without any client like Hector. Can you
please tell me how do I do it.
Prakrati Agrawal | Developer - Big Data(ID)| 9731648376 | www.mu-sigma.com
From: samal [mailto:samalgo
Dear all,
I am trying to explore Cassandra for real time applications. Can you please
suggest me which client is the best to use ? Is the client choice based on the
user 's comfort level or on use cases.
Thanks and Regards
Prakrati Agrawal | Developer - Big Data(ID)| 9731648376 | www.mu
Dear all,
I am writing a java code using Hector but when I am configuring the already
created key space using HFactory.createKeySpace its giving me the error Null
Point Exception. What am I doing wrong. Please help me.
Thanks and Regards
Prakrati Agrawal | Developer - Big Data(ID)| 9731648376
cluster = HFactory.getCluster(Test Cluster);
keySpace = HFactory.createKeyspace(mstream, cluster);
These are the lines that I am executing and getting an error
Prakrati Agrawal | Developer - Big Data(ID)| 9731648376 | www.mu-sigma.com
From: Harshvardhan Ojha [mailto:harshvardhan.o
Thank you all for the quick response :)
Prakrati Agrawal | Developer - Big Data(ID)| 9731648376 | www.mu-sigma.com
From: MOHD ARSHAD SALEEM [mailto:marshadsal...@tataelxsi.co.in]
Sent: Tuesday, June 05, 2012 3:07 PM
To: user@cassandra.apache.org
Subject: RE: How to configure the Cassandra
Dear all
I am using a two node Cassandra cluster. How do I code in Java using Hector to
get data from both the nodes. Please help
Thanks and Regards
Prakrati Agrawal | Developer - Big Data(ID)| 9731648376 | www.mu-sigma.com
This email message may contain
But the data is distributed on the nodes ( meaning 50% of data is on one node
and 50% of data is on another node) so I need to specify the node ip address
somewhere in the code. But where do I specify that is what I am clueless about.
Please help me
Prakrati Agrawal | Developer - Big Data(ID
Dear all
I am trying to check the performance of Cassandra on adding or removing nodes.
I want to know what happens to my existing data if I remove a node ? Please
help me
Thanks and Regards
Prakrati Agrawal | Developer - Big Data(ID)| 9731648376 | www.mu-sigma.com
Thank you for the reply.
Now I have decommissioned a node but now I don't know how to recommission it
.Please help me
Thanks and Regards
Prakrati Agrawal | Developer - Big Data(ID)| 9731648376 | www.mu-sigma.com
-Original Message-
From: Roshni Rajagopal [mailto:roshni.rajago...@wal
Dear all
I decommissioned a node. Now I want to make that node a part of the ring again.
How do I do it? Please help me
Thanks and Regards
Prakrati Agrawal | Developer - Big Data(ID)| 9731648376 | www.mu-sigma.com
This email message may contain proprietary
You have to create the keyspace manually first using Cassandra cli
Prakrati Agrawal | Developer - Big Data(ID)| 9731648376 | www.mu-sigma.com
From: MOHD ARSHAD SALEEM [mailto:marshadsal...@tataelxsi.co.in]
Sent: Wednesday, June 06, 2012 2:27 PM
To: user@cassandra.apache.org
Subject: how
is 52793
Time taken to count is 268135
Total number of rows in the database are 396
Total number of columns in the database are 16316426
Please help me. Where is my data going or how should I retrieve it.
Thanks and Regards
Prakrati Agrawal | Developer - Big Data(ID)| 9731648376 | www.mu
? If yes, then why are
we using Hector and not Thrift?
Thanks and Regards
Prakrati Agrawal | Developer - Big Data(ID)| 9731648376 | www.mu-sigma.com
This email message may contain proprietary, private and confidential
information. The information transmitted
Please anyone reply to my query
Prakrati Agrawal | Developer - Big Data(ID)| 9731648376 | www.mu-sigma.com
From: Prakrati Agrawal [mailto:prakrati.agra...@mu-sigma.com]
Sent: Wednesday, June 06, 2012 2:34 PM
To: user@cassandra.apache.org
Subject: Cassandra not retrieving the complete data on 2
I decommission my node and then add it again I get the following
message.
This node will not auto bootstrap because it is configured to be a seed node
Please tell me the meaning of it also
Thanks and Regards
Prakrati
Prakrati Agrawal | Developer - Big Data(ID)| 9731648376 | www.mu-sigma.com
What does repair do?
Prakrati Agrawal | Developer - Big Data(ID)| 9731648376 | www.mu-sigma.com
From: R. Verlangen [mailto:ro...@us2.nl]
Sent: Wednesday, June 06, 2012 3:56 PM
To: user@cassandra.apache.org
Subject: Re: Problem in getting data from a 2 node cluster
Did you run repair on the new
Agrawal | Developer - Big Data(ID)| 9731648376 | www.mu-sigma.com
From: Prakrati Agrawal [mailto:prakrati.agra...@mu-sigma.com]
Sent: Wednesday, June 06, 2012 3:55 PM
To: user@cassandra.apache.org
Subject: RE: Problem in getting data from a 2 node cluster
What does repair do?
Prakrati Agrawal
Yes I ran nodetool repair also. Still the same problem I am getting lesser data
when using my code on a 2 node cluster. Please help me
Prakrati Agrawal | Developer - Big Data(ID)| 9731648376 | www.mu-sigma.com
From: R. Verlangen [mailto:ro...@us2.nl]
Sent: Wednesday, June 06, 2012 4:01 PM
I even used CassandraHostConfigurator and added a string of hosts but still the
same issue. Please someone help me
Thanks and Regards
Prakrati Agrawal | Developer - Big Data(ID)| 9731648376 | www.mu-sigma.com
From: Prakrati Agrawal [mailto:prakrati.agra...@mu-sigma.com]
Sent: Wednesday, June
issue
2. Used nodetool repair on both the nodes - Still same issue
Please help me out. I am badly stuck
Thanks and Regards
Prakrati Agrawal | Developer - Big Data(ID)| 9731648376 | www.mu-sigma.com
From: Prakrati Agrawal [mailto:prakrati.agra...@mu-sigma.com]
Sent: Wednesday, June 06
What is the default replication factor? I did not set any replication factor.
Prakrati Agrawal | Developer - Big Data(ID)| 9731648376 | www.mu-sigma.com
-Original Message-
From: Tim Wintle [mailto:timwin...@gmail.com]
Sent: Wednesday, June 06, 2012 5:42 PM
To: user@cassandra.apache.org
I have specified the consistency level as 1
Prakrati Agrawal | Developer - Big Data(ID)| 9731648376 | www.mu-sigma.com
From: Poziombka, Wade L [mailto:wade.l.poziom...@intel.com]
Sent: Wednesday, June 06, 2012 11:11 PM
To: user@cassandra.apache.org
Subject: RE: Cassandra not retrieving
I was told that the node bootstraps automatically in 1.1.0 version of
Cassandra. Please help me how to rectify the mistake
Prakrati Agrawal | Developer - Big Data(ID)| 9731648376 | www.mu-sigma.com
From: Tyler Hobbs [mailto:ty...@datastax.com]
Sent: Wednesday, June 06, 2012 11:45 PM
To: user
.
Prakrati Agrawal | Developer - Big Data(ID)| 9731648376 | www.mu-sigma.com
This email message may contain proprietary, private and confidential
information. The information transmitted is intended only for the person(s) or
entities to which it is addressed. Any
Dear all
I am using Cassandra to retrieve a number of rows and columns stored in it.
Initially I had a 1 node cluster and I flooded it with data. I ran a Hector
code to retrieve data from it I got the following output:
Total number of rows in the database are 396
Total number of columns in the
Dear all,
I had a 1 node cluster of Cassandra. Then I added one more node to it and
started Cassandra on it. I got the following error:
INFO 12:44:49,588 Loading persisted ring state
ERROR 12:44:49,613 Exception in thread Thread[COMMIT-LOG-ALLOCATOR,5,main]
java.io.IOError: java.io.IOException:
in that (cassandra.yaml file)give the ip address of
1st node in seeds option.
Regards
Arshad
From: Prakrati Agrawal [prakrati.agra...@mu-sigma.com]
Sent: Friday, June 08, 2012 12:44 PM
To: user@cassandra.apache.org
Subject: Problem in adding a new node
Dear all,
I
Dear all,
When I try to list the entire data in my column family I get the following
error:
Using default limit of 100
Exception in thread main java.lang.OutOfMemoryError: Java heap space
at
org.apache.thrift.transport.TFramedTransport.readFrame(TFramedTransport.java:140)
Dear all
Initially I had a one node cluster and I flooded my data into it. I then ran my
Hector code to get some rows and columns. It took around 52.793 seconds.
Then I added one more node to the cluster. I again ran the same code and it
took around 112.065 seconds.
Cassandra should perform
, but should not be
slow (unless u also doubled the data)...
On Fri, Jun 8, 2012 at 2:41 PM, Prakrati Agrawal
prakrati.agra...@mu-sigma.com wrote:
Dear all
Initially I had a one node cluster and I flooded my data into it. I then ran
my Hector code to get some rows and columns. It took around
On 8/06/2012, at 9:04 PM, Prakrati Agrawal wrote:
Dear all,
When I try to list the entire data in my column family I get the following
error:
Using default limit of 100
Exception in thread main java.lang.OutOfMemoryError: Java heap space
The version is 1.1.0
Prakrati Agrawal | Developer - Big Data(ID)| 9731648376 | www.mu-sigma.com
From: Dave Brosius [mailto:dbros...@mebigfatguy.com]
Sent: Monday, June 11, 2012 10:07 AM
To: user@cassandra.apache.org
Subject: Re: Out of memory error
What version of Cassandra?
might be related
Dear all
I have a Cassandra cluster with 2 nodes.
I was trying to increase the replication factor of keyspace in Cassandra to 2.
I did the following steps:
UPDATE KEYSPACE demo WITH strategy_options = {DC1:2,DC2:2}; on both the nodes
Then I ran the nodetool repair on both the nodes
Then I ran my
Dear all
I have a Cassandra cluster with 2 nodes. I am using NetworkTopologyStrategy.
I was trying to increase the replication factor of keyspace in Cassandra to 2.
I did the following steps:
UPDATE KEYSPACE demo WITH strategy_options = {DC1:2,DC2:2}; on both the nodes
Then I ran the nodetool
Dear all
I had a 2 node cluster with replication factor set to 1. Then I changed the
replication factor to 2 and brought down one node so that only 1 node was up
and running. Then I ran my Hector code on the running node. But it gave me
Unavailable Exception. I also had a Thrift code which ran
and replication factor were you using ?
UnavailableException is thrown when less the consistency level nodes are UP.
Cheers
-
Aaron Morton
Freelance Developer
@aaronmorton
http://www.thelastpickle.com
On 11/06/2012, at 10:19 PM, Prakrati Agrawal wrote:
Dear all
I had a 2 node
stack you got ?
What does node tool ring look look from the node you connected to?
Did you notice any errors in the logs on the machine you connected to ?
Cheers
-
Aaron Morton
Freelance Developer
@aaronmorton
http://www.thelastpickle.com
On 12/06/2012, at 8:41 PM, Prakrati
How do I verify that I am using a wrong consistency level?
Thanks and Regards
Prakrati Agrawal | Developer - Big Data(ID)| 9731648376 | www.mu-sigma.com
From: aaron morton [mailto:aa...@thelastpickle.com]
Sent: Wednesday, June 13, 2012 2:38 PM
To: user@cassandra.apache.org
Subject: Re: Hector
Dear all,
I am trying to understand whether I can fasten the retrieval process using
cache. Please can you help me write the code for setting the cache properties
in Cassandra.
Please help
Thanks and Regards
Prakrati
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