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From Amrita Jayakumar <amritajayakuma...@gmail.com>
Subject Re: problem in starting the cassandra single node setup
Date Tue, 31 May 2011 06:28:33 GMT
Maki,

        Can you please tell me what is thrift and what is it used for??? I
mean is it necessary to use cassandra? do i have to install it separately???
or does it come along with the cassandra package?

Thanks and reagards
Amrita

On Tue, May 31, 2011 at 11:11 AM, Maki Watanabe <watanabe.maki@gmail.com>wrote:

> 2011/5/31 Amrita Jayakumar <amritajayakumarcp@gmail.com>:
> > Thank You so much Maki :) Its working now... I dont know what went wrong
> > yesterday...
> >
> > BTW bin/cassandra-cli --host localhost is to read and write data using
> the
> > command line client right???
>
> Yes.
>
> > So what if i need to load data from a file into cassandra???
> >
> > i.e.i have a log file with so many lines... lines may be in the format
> > <sessionid> <key> <value>
> >
> > so how can i load data from this log file into cassandra?
> >
> > Thanks and Regards,
> > Amrita
>
> You can write/read on cassandra from misc. programming language.
> - Java
> - Python
> - Ruby
> etc.
> Refer to http://wiki.apache.org/cassandra/ClientOptions for more details.
> Of course you need to design and define your database schema before
> writing code.
> You should better to learn about Cassandra concept and architecture
> including:
>  - Keyspace
>  - Column Family
>  - Replication Factor
>  - Consistency Level
>  - Distributed Delete
>  - Compaction
> before going farther.
>
> maki
>
>
>
> >
> > On Tue, May 31, 2011 at 10:42 AM, Maki Watanabe <watanabe.maki@gmail.com
> >
> > wrote:
> >>
> >> You can just start
> >> bin/cassandra -f
> >> .
> >>
> >> Readme.txt  says:
> >> > Now that we're ready, let's start it up!
> >> >
> >> >   * bin/cassandra -f
> >> >
> >> > Running the startup script with the -f argument will cause Cassandra
> to
> >> > remain in the foreground and log to standard out.
> >>
> >> So, you need another terminal to run cassandra-cli. Open another
> >> terminal window and then:
> >>
> >> Readme.txt says:
> >> > Now let's try to read and write some data using the command line
> client.
> >> >
> >> >  * bin/cassandra-cli --host localhost
> >> >
> >> > The command line client is interactive so if everything worked you
> >> > should
> >> > be sitting in front of a prompt...
> >> >
> >> > Connected to: "Test Cluster" on localhost/9160
> >> > Welcome to cassandra CLI.
> >>
> >> You will see the cassandra-cli pormpt on your terminal like:
> >>
> >>  Type 'help;' or '?' for help. Type 'quit;' or 'exit;' to quit.
> >>  [default@unknown]
> >>
> >>
> >> maki
> >>
> >>
> >>
> >> 2011/5/31 Amrita Jayakumar <amritajayakumarcp@gmail.com>:
> >> > Hi Maki,
> >> >
> >> > I am trying to install apache-cassandra-0.7.6-2.
> >> > Here are the steps i followed as per the readme file.
> >> >
> >> >    tar -zxvf apache-cassandra-0.7.6-2.tar.gz
> >> >    cd apache-cassandra-0.7.6-2
> >> >    sudo mkdir -p /var/log/cassandra
> >> >    sudo chown -R `whoami` /var/log/cassandra
> >> >    sudo mkdir -p /var/lib/cassandra
> >> >    sudo chown -R `whoami` /var/lib/cassandra
> >> >
> >> > Now is there any configuration settings to be made in
> >> > apache-cassandra-0.7.6-2/conf/ before i fire
> >> >
> >> >    bin/cassandra -f ???
> >> >
> >> > If so then which all are the that i should change???
> >> >
> >> > Thanks and Regards,
> >> > Amrita
> >> >
> >> >
> >> > On Tue, May 31, 2011 at 10:00 AM, Maki Watanabe
> >> > <watanabe.maki@gmail.com>
> >> > wrote:
> >> >>
> >> >> Did you read Jonathan's reply?
> >> >> If you can't understand what README says, please let us know where
> you
> >> >> are stack on.
> >> >>
> >> >> maki
> >> >>
> >> >>
> >> >> 2011/5/31 Amrita Jayakumar <amritajayakumarcp@gmail.com>:
> >> >> > can anyone help me how to start with cassandra??? starting from
the
> >> >> > basics???
> >> >> >
> >> >> > Thanks and Regards,
> >> >> > Amrita
> >> >> >
> >> >> > On Mon, May 30, 2011 at 6:41 PM, Jonathan Ellis <jbellis@gmail.com
> >
> >> >> > wrote:
> >> >> >>
> >> >> >> Here's what README says:
> >> >> >>
> >> >> >>  * bin/cassandra -f
> >> >> >>
> >> >> >> Running the startup script with the -f argument will cause
> Cassandra
> >> >> >> to
> >> >> >> remain in the foreground and log to standard out.
> >> >> >>
> >> >> >> Now let's try to read and write some data using the command
line
> >> >> >> client.
> >> >> >>
> >> >> >>  * bin/cassandra-cli --host localhost
> >> >> >>
> >> >> >> The command line client is interactive so if everything worked
you
> >> >> >> should
> >> >> >> be sitting in front of a prompt...
> >> >> >>
> >> >> >>  Connected to: "Test Cluster" on localhost/9160
> >> >> >>  Welcome to cassandra CLI.
> >> >> >>
> >> >> >>  Type 'help;' or '?' for help. Type 'quit;' or 'exit;' to
quit.
> >> >> >>  [default@unknown]
> >> >> >>
> >> >> >>
> >> >> >> On Mon, May 30, 2011 at 4:09 AM, Amrita Jayakumar
> >> >> >> <amritajayakumarcp@gmail.com> wrote:
> >> >> >> > Marcus,
> >> >> >> >             Can u please tell me how to do that??? I
was just
> >> >> >> > following
> >> >> >> > the
> >> >> >> > instructions in the README file that came with the package.
> >> >> >> >
> >> >> >> > Thanks and Regards,
> >> >> >> > Amrita
> >> >> >> >
> >> >> >> > On Mon, May 30, 2011 at 2:36 PM, Marcus Bointon
> >> >> >> > <marcus@synchromedia.co.uk>
> >> >> >> > wrote:
> >> >> >> >>
> >> >> >> >> On 30 May 2011, at 10:59, Amrita Jayakumar wrote:
> >> >> >> >>
> >> >> >> >> > I am new to cassandra. I am trying to start
the Cassandra
> >> >> >> >> > single
> >> >> >> >> > node
> >> >> >> >> > setup using the command
> >> >> >> >> > bin/cassandra -f. But there is no response from
the prompt..
> >> >> >> >> > this
> >> >> >> >> > is
> >> >> >> >> > what it shows
> >> >> >> >>
> >> >> >> >> I'm new to this too, but I think you're looking at
the wrong
> >> >> >> >> thing.
> >> >> >> >> cassandra -f is not an interactive mode, it just
runs the
> server
> >> >> >> >> in
> >> >> >> >> the
> >> >> >> >> foreground and shows you log output, which is useful
for
> >> >> >> >> debugging
> >> >> >> >> server
> >> >> >> >> config. The output you have looks like it's working
fine. You
> >> >> >> >> need
> >> >> >> >> to
> >> >> >> >> start
> >> >> >> >> another terminal and connect to it from a cassandra
client.
> >> >> >> >>
> >> >> >> >> Marcus
> >> >> >> >
> >> >> >>
> >> >> >>
> >> >> >>
> >> >> >> --
> >> >> >> Jonathan Ellis
> >> >> >> Project Chair, Apache Cassandra
> >> >> >> co-founder of DataStax, the source for professional Cassandra
> >> >> >> support
> >> >> >> http://www.datastax.com
> >> >> >
> >> >> >
> >> >>
> >> >>
> >> >>
> >> >> --
> >> >> w3m
> >> >
> >> >
> >>
> >>
> >>
> >> --
> >> w3m
> >
> >
>
>
>
> --
> w3m
>

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