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Date: Sun, 24 Jun 2012 19:06:52 -0500
Message-ID: 
 <CAJ=yfkNZmFz9h4HZEEc7u7vWK5EFfpwwmBd0c7rS6NXnXH0VFg@mail.gmail.com>
Subject: Re: Starting cassandra with -D option
From: Greg Fausak <greg@named.com>
To: user@cassandra.apache.org
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I did something similar for my installation, but I used ENV variables:
I created a directory on a machine (call this the master) with directories
for all of the distributions (call them slaves).  So, consider:

/master/slave1
/master/slave2
...
/master/slaven

then i rdist this to all of my slaves.

In the /master directory all of the standard cassandra distribution.

In the /master/slave* directory all of the machine dependent stuff.

Also in /master I have a .profile with:

-bash-4.1$ cat /master/.profile
#
export CASSANDRA_HOME=3D$HOME/run
SHOST=3D`hostname | sed s'/\..*//'`
export CASSANDRA_CONF=3D$CASSANDRA_HOME/conf/$SHOST
export CASSANDRA_INCLUDE=3D$CASSANDRA_HOME/conf/$SHOST/cassandra.in.sh
. $CASSANDRA_HOME/conf/cassandra-env.sh
PATH=3D$HOME/run/bin:$PATH
echo 'to start cassandra type cassandra'


this leaves me with this environment on each slave (slave1 example):
-bash-4.1$ env | grep CAS
CASSANDRA_HOME=3D/usr/share/cassandra/run
CASSANDRA_CONF=3D/usr/share/cassandra/run/conf/slave1
CASSANDRA_INCLUDE=3D/usr/share/cassandra/run/conf/slave1/cassandra.in.sh

Using this technique I maintain my Cassandra cluster on 1 machine and
rdist to the
participants.    Rdist makes each node independent.....

-greg


On Sun, Jun 24, 2012 at 1:11 PM, aaron morton <aaron@thelastpickle.com> wro=
te:
> =A0Idea is to avoid having the copies of cassandra code in each node,
>
> If you run cassandra from the NAS you are adding a single point of failur=
e
> into the system.
>
> Better to use some form of deployment automation and install all the
> requirement components onto each node.
>
> Cheers
>
> -----------------
> Aaron Morton
> Freelance Developer
> @aaronmorton
> http://www.thelastpickle.com
>
> On 22/06/2012, at 12:29 AM, Flavio Baronti wrote:
>
> The option must actually include also the name of the yaml file:
>
> Dcassandra.config=3Dfile:///Users/walmart/Downloads/Cassandra/Node2-Cassa=
ndra1.1.0/conf/cassandra.yaml
>
>
> Flavio
>
>
> Il 6/21/2012 13:16 PM, Roshni Rajagopal ha scritto:
>
> Hi Folks,
>
>
> =A0=A0We wanted to have a single cassandra installation, and use it to st=
art
> cassandra in other nodes by passing it the cassandra configuration
> directories as a parameter. Idea is to avoid having the copies of cassand=
ra
> code in each node, and starting each node by getting into bin/cassandra o=
f
> that node.
>
>
>
> As per http://www.datastax.com/docs/1.0/references/cassandra,
>
> We have an option =96D where we can supply some parameters to cassandra.
>
> Has anyone tried this?
>
> Im getting an error as below.
>
>
> walmarts-MacBook-Pro-2:Node1-Cassandra1.1.0 walmart$ =A0bin/cassandra
> =A0-Dcassandra.config=3Dfile:///Users/walmart/Downloads/Cassandra/Node2-C=
assandra1.1.0/conf
>
> walmarts-MacBook-Pro-2:Node1-Cassandra1.1.0 walmart$ =A0INFO 15:38:01,763
> Logging initialized
>
> =A0INFO 15:38:01,766 JVM vendor/version: Java HotSpot(TM) 64-Bit Server
> VM/1.6.0_31
>
> =A0INFO 15:38:01,766 Heap size: 1052770304/1052770304
>
> =A0INFO 15:38:01,766 Classpath:
> bin/../conf:bin/../build/classes/main:bin/../build/classes/thrift:bin/../=
lib/antlr-3.2.jar:bin/../lib/apache-cassandra-1.1.0.jar:bin/../lib/apache-c=
assandra-clientutil-1.1.0.jar:bin/../lib/apache-cassandra-thrift-1.1.0.jar:=
bin/../lib/avro-1.4.0-fixes.jar:bin/../lib/avro-1.4.0-sources-fixes.jar:bin=
/../lib/commons-cli-1.1.jar:bin/../lib/commons-codec-1.2.jar:bin/../lib/com=
mons-lang-2.4.jar:bin/../lib/compress-lzf-0.8.4.jar:bin/../lib/concurrentli=
nkedhashmap-lru-1.2.jar:bin/../lib/guava-r08.jar:bin/../lib/high-scale-lib-=
1.1.2.jar:bin/../lib/jackson-core-asl-1.9.2.jar:bin/../lib/jackson-mapper-a=
sl-1.9.2.jar:bin/../lib/jamm-0.2.5.jar:bin/../lib/jline-0.9.94.jar:bin/../l=
ib/json-simple-1.1.jar:bin/../lib/libthrift-0.7.0.jar:bin/../lib/log4j-1.2.=
16.jar:bin/../lib/metrics-core-2.0.3.jar:bin/../lib/mx4j-tools-3.0.1.jar:bi=
n/../lib/servlet-api-2.5-20081211.jar:bin/../lib/slf4j-api-1.6.1.jar:bin/..=
/lib/slf4j-log4j12-1.6.1.jar:bin/../lib/snakeyaml-1.6.jar:bin/../lib/snappy=
-java-1.0.4.1.jar:bin/../lib/snaptree-0.1.jar:bin/../lib/jamm-0.2.5.jar
>
> =A0INFO 15:38:01,768 JNA not found. Native methods will be disabled.
>
> =A0INFO 15:38:01,826 Loading settings from
> file:/Users/walmart/Downloads/Cassandra/Node2-Cassandra1.1.0/conf
>
> ERROR 15:38:01,873 Fatal configuration error error
>
> Can't construct a java object for
> tag:yaml.org,2002:org.apache.cassandra.config.Config; exception=3DNo sing=
le
> argument constructor found for class org.apache.cassandra.config.Config
>
> =A0in "<reader>", line 1, column 1:
>
> =A0=A0=A0=A0cassandra.yaml
>
>
> The other option would be to modify cassandra.in.sh.
>
> Has anyone tried this??
>
>
> Regards,
>
> Roshni
>
>
> This email and any files transmitted with it are confidential and intende=
d
> solely for the individual or entity to whom they are addressed. If you ha=
ve
> received this email in error destroy it immediately. *** Walmart
> Confidential ***
>
>
>
>
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