一、下载安装好JDK
https://blog.csdn.net/huangbaokang/article/details/79487890
二、下载Cassandra
到官网下载http://www.apache.org/dyn/closer.lua/cassandra/3.11.3/apache-cassandra-3.11.3-bin.tar.gz
[root@localhost hbk] wget http://mirrors.hust.edu.cn/apache/cassandra/3.11.3/apache-cassandra-3.11.3-bin.tar.gz
解压
[root@localhost hbk]# tar -zxvf apache-cassandra-3.11.3-bin.tar.gz
[root@localhost hbk]# cd apache-cassandra-3.11.3
[root@localhost apache-cassandra-3.11.3]# ls
bin CASSANDRA-14092.txt CHANGES.txt conf doc interface javadoc lib LICENSE.txt NEWS.txt NOTICE.txt pylib tools
三、启动服务端
[root@localhost apache-cassandra-3.11.3]# cd bin/
[root@localhost bin]# ./cassandra -R
四、启用CQL
[root@localhost bin]# ./cqlsh
Connected to Test Cluster at 127.0.0.1:9042.
[cqlsh 5.0.1 | Cassandra 3.11.3 | CQL spec 3.4.4 | Native protocol v4]
Use HELP for help.
cqlsh> help;
Documented shell commands:
===========================
CAPTURE CLS COPY DESCRIBE EXPAND LOGIN SERIAL SOURCE UNICODE
CLEAR CONSISTENCY DESC EXIT HELP PAGING SHOW TRACING
CQL help topics:
================
AGGREGATES CREATE_KEYSPACE DROP_TRIGGER TEXT
ALTER_KEYSPACE CREATE_MATERIALIZED_VIEW DROP_TYPE TIME
ALTER_MATERIALIZED_VIEW CREATE_ROLE DROP_USER TIMESTAMP
ALTER_TABLE CREATE_TABLE FUNCTIONS TRUNCATE
ALTER_TYPE CREATE_TRIGGER GRANT TYPES
ALTER_USER CREATE_TYPE INSERT UPDATE
APPLY CREATE_USER INSERT_JSON USE
ASCII DATE INT UUID
BATCH DELETE JSON
BEGIN DROP_AGGREGATE KEYWORDS
BLOB DROP_COLUMNFAMILY LIST_PERMISSIONS
BOOLEAN DROP_FUNCTION LIST_ROLES
COUNTER DROP_INDEX LIST_USERS
CREATE_AGGREGATE DROP_KEYSPACE PERMISSIONS
CREATE_COLUMNFAMILY DROP_MATERIALIZED_VIEW REVOKE
CREATE_FUNCTION DROP_ROLE SELECT
CREATE_INDEX DROP_TABLE SELECT_JSON
五、相关操作
1、建立keyspace
cqlsh:hbk_space> CREATE KEYSPACE "hbk_space" WITH replication = {'class': 'SimpleStrategy', 'replication_factor': 3} AND durable_writes = 'true';
cqlsh:hbk_space> DESCRIBE KEYSPACES
system_schema system_auth system system_distributed system_traces hbk_space
cqlsh:hbk_space> USE hbk_space ;
cqlsh:hbk_space> CREATE TABLE hbk_table(id int PRIMARY KEY ,name text ,age int,phone varint );
cqlsh:hbk_space> select * from hbk_table ;
id | age | name | phone
----+-----+------+-------
(0 rows)
cqlsh:hbk_space> ALTER TABLE hbk_table ADD emp_address varchar ;
cqlsh:hbk_space> DESCRIBE TABLE hbk_table ;
CREATE TABLE hbk_space.hbk_table (
id int PRIMARY KEY,
age int,
emp_address text,
name text,
phone varint
) WITH bloom_filter_fp_chance = 0.01
AND caching = {'keys': 'ALL', 'rows_per_partition': 'NONE'}
AND comment = ''
AND compaction = {'class': 'org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy', 'max_threshold': '32', 'min_threshold': '4'}
AND compression = {'chunk_length_in_kb': '64', 'class': 'org.apache.cassandra.io.compress.LZ4Compressor'}
AND crc_check_chance = 1.0
AND dclocal_read_repair_chance = 0.1
AND default_time_to_live = 0
AND gc_grace_seconds = 864000
AND max_index_interval = 2048
AND memtable_flush_period_in_ms = 0
AND min_index_interval = 128
AND read_repair_chance = 0.0
AND speculative_retry = '99PERCENTILE';
cqlsh:hbk_space> insert into hbk_table (id,age, emp_address , name , phone ) values(1,20,'nankang','hbk',18679758769);
cqlsh:hbk_space> select * from hbk_table ;
id | age | emp_address | name | phone
----+-----+-------------+------+-------------
1 | 20 | nankang | hbk | 18679758769
(1 rows)
cqlsh:hbk_space> UPDATE hbk_table set emp_address = 'ganzhou' where id=1;
cqlsh:hbk_space> select * from hbk_table ;
id | age | emp_address | name | phone
----+-----+-------------+------+-------------
1 | 20 | ganzhou | hbk | 18679758769
(1 rows)
cqlsh:hbk_space> DELETE from hbk_table where id=1;
cqlsh:hbk_space> select * from hbk_table ;
id | age | emp_address | name | phone
----+-----+-------------+------+-------
(0 rows)