Ubuntu 10.04で。
まずはインストールから起動まで。
とりあえずお試しでホームディレクトリ下で動かしてみる。
% wget http://www.meisei-u.ac.jp/mirror/apache/dist/cassandra/0.6.1/apache-cassandra-0.6.1-bin.tar.gz % tar xvfz apache-cassandra-0.6.1-bin.tar.gz % cd apache-cassandra-0.6.1 % export CASSANDRA_HOME=`pwd` % cp conf/storage-conf.xml conf/storage-conf.xml~ % diff conf/storage-conf.xml~ conf/storage-conf.xml 193c193 < <CommitLogDirectory>/var/lib/cassandra/commitlog</CommitLogDirectory> --- > <CommitLogDirectory>$CASSANDRA_HOME/commitlog</CommitLogDirectory> 195c195 < <DataFileDirectory>/var/lib/cassandra/data</DataFileDirectory> --- > <DataFileDirectory>$CASSANDRA_HOME/data</DataFileDirectory> % cp conf/log4j.properties conf/log4j.properties~ % diff conf/log4j.properties~ conf/log4j.properties 35c35 < log4j.appender.R.File=/var/log/cassandra/system.log --- > log4j.appender.R.File=$CASSANDRA_HOME/system.log % bin/cassandra INFO 11:38:40,816 Auto DiskAccessMode determined to be standard INFO 11:38:41,282 Saved Token not found. Using 14634285769542601794195837855795427615 INFO 11:38:41,282 Saved ClusterName not found. Using Test Cluster INFO 11:38:41,297 Creating new commitlog segment $CASSANDRA_HOME/commitlog/CommitLog-1274323121297.log INFO 11:38:41,410 Starting up server gossip INFO 11:38:41,543 Binding thrift service to localhost/127.0.0.1:9160
CLIがついてるんでさらっと試してみる。
% bin/cassandra-cli Welcome to cassandra CLI. Type 'help' or '?' for help. Type 'quit' or 'exit' to quit. cassandra> ? List of all CLI commands: ? Same as help. help Display this help. connect <hostname>/<port> Connect to thrift service. describe keyspace <keyspacename> Describe keyspace. exit Exit CLI. quit Exit CLI. show config file Display contents of config file. show cluster name Display cluster name. show keyspaces Show list of keyspaces. show api version Show server API version. get <ksp>.<cf>['<key>'] Get a slice of columns. get <ksp>.<cf>['<key>']['<super>'] Get a slice of sub columns. get <ksp>.<cf>['<key>']['<col>'] Get a column value. get <ksp>.<cf>['<key>']['<super>']['<col>'] Get a sub column value. set <ksp>.<cf>['<key>']['<col>'] = '<value>' Set a column. set <ksp>.<cf>['<key>']['<super>']['<col>'] = '<value>' Set a sub column. del <ksp>.<cf>['<key>'] Delete record. del <ksp>.<cf>['<key>']['<col>'] Delete column. del <ksp>.<cf>['<key>']['<super>']['<col>'] Delete sub column. count <ksp>.<cf>['<key>'] Count columns in record. count <ksp>.<cf>['<key>']['<super>'] Count columns in a super column. cassandra> connect localhost/9160 Connected to: "Test Cluster" on localhost/9160 cassandra> set Keyspace1.Standard1['hoge']['foo']='X' Value inserted. cassandra> set Keyspace1.Standard1['hoge']['bar']='Y'_ Value inserted. cassandra> get Keyspace1.Standard1['hoge'] => (column=bar, value=Y, timestamp=1274323323091000) => (column=foo, value=X, timestamp=1274323304565000) Returned 2 results. cassandra> exit
次回、Rubyでちょす。
