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Questions tagged [cassandra-0.7]

Cassandra is a highly scalable, eventually consistent, distributed, structured key-value store.

Version 0.7 of Cassandra: a highly scalable, eventually consistent, distributed, structured key-value store.

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Cassandra starting issue

I have problems starting Cassandra. The follow is my terminal output when I try to issue a start command: root@gestion:~# cassandra -f Exception in thread "main" java.lang.ExceptionInInitializerError Caused by: java.lang.RuntimeException:…
ssich
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Cassandra clustername mismatch

I'm trying to add a single node to an already existing cluster called ClusterA. Prior to bootstrapping this node, it was running a single node cassandra cluster called "Test" with an older version 0.7.4. ClusterA is running 0.7.5 and I've upgraded…
suhprano
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Is there any performance overhead when cassandra caching the keys when key cache is enable?

1) We are querying Cassandra with around 8000 row-keys and for each row there are 5 subcolumns for the requested supercolumn. 2) We have key cache enabled with caching= KEYS_ONLY with 2 MB of key cache. 3) We are having 10 nodes of cassandra running…
samarth
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While Cassandra compaction Fatal exception in thread CompactionExecutor

I am having cassandra cluster of 12 nodes on EC2 running cassandra-0.8.2. While compaction I got the following exception which caused Seed node to get down. Below is the exception stack trace. ERROR [CompactionExecutor:31] 2011-12-16 08:06:02,308…
samarth
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Brisk for small files

I am a newbie to Cassandra and Hadoop. While looking for integration of the two products i came across Brisk. From the description i understand that Brisk replaces HDFS for CassandraFS. So this replacement is a solution for small file problem of…
fgakk
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Cassandra getting back a whole row

I'm trying Cassandra with a very simple example. I have a column family stored in the cassandra database: [default@Hotelier] list Hotel; Using default limit of 100 ------------------- RowKey: AZS_011 => (column=name,…
Lucas
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Hector test example not working on Cassandra 0.7.4

I have set up my single node Cassandra 0.7.4 and started the service with bin/cassandra -f. Now I am trying to use the Hector API (v. 0.7.0) to manage the DB. The Cassandra CLI works fine and I can create keyspaces and so on. I tried to run the…
AndaP
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Batch insertion Cassandra

How could i realize batch insertion in Cassandra to populate with data?
walves
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how to connect to cassandra on a cloud server

I have been trying to connect to a cassandra database on a Rackspace cloud server with no success. Can anyone shed any light on the last paragraph of this comment from http://wiki.apache.org/cassandra/StorageConfiguration listen_address Commenting…
Rujero Domenichini
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How can I create & import a keyspace on Cassandra database 0.7rc2 , on a windows machine?

How can I create & import a keyspace on Cassandra database 0.7rc2 , on a windows machine?
Rajat Gupta
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Connecting to Cassandra 0.7 in .NET

I am having a lot of trouble trying to upgrade my existing library from Cassandra 0.6 to 0.7 beta1. I had originally thought it was a order of operations issue, so I decided to break it down to the basics. Here is the basic setup that I will be…
Nick Berardi
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Apache thrift can not make

When I'm trying to configure and make thrift 0.9.1 it gives some errors. Can anyone tell me the reason for that and what should I do to overcome this issue. Errors are shown in below. user@linux-yyzo:~/WorkDir/thrift-0.9.1> make make …
Sameera
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Where is cassandra backup stored on windows

I am using Cassandra 1.2 db on windows 7. I want to take the back up of a keyspace. I am doing as following: C:\Workspace\apache-cassandra-1.2.4-bin\bin> nodetool -h localhost -p 7199 snaps hot myDb Starting NodeTool Requested snapshot for:…
Ryan Malhotra
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Cassandra composite columns structure and insert

I want to insert data in a composite column family through CQL 3. create column family marks with comparator = 'CompositeType(DateType,UTF8Type,UTF8Type)' AND key_validation_class=UTF8Type AND default_validation_class=UTF8Type; The structure…
Shalu
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Cassandra JMX MBin to monitor number of active/idle connection from tomcat

I am using Tomcat and Cassandra. I am trying to write JMX shell script to find out following 05/12/2013 13:37:16 -0400 org.archive.jmx.Client numActive: 0 05/12/2013 13:37:16 -0400 org.archive.jmx.Client numIdle: 4 Please note: I used this…
joy
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