Welcome to cssdbpy’s documentation! — cssdbpy 0.1 documentation (original) (raw)

What is SSDB?¶

SSDB is a high performance key-value(key-string, key-zset, key-hashmap) NoSQL database, an alternative to Redis. SSDB is stable, production-ready and is widely used by many Internet companies including QIHU 360. Its repository is https://github.com/ideawu/ssdb

Features¶

• LevelDB client-server support, written in C/C++
• Designed to store collection data
• Persistent key-value, key-zset, key-map(‘hashmap’) storage
• Redis clients are supported
• Client API supports including C++, PHP, Python, Cpy, Java, nodejs, Ruby, Go
• Persistent queue service
• Replication(master-slave), load balance
• GUI administration tool(phpssdbadmin)
• Built-in CLI nagios self-checks

Install¶

or

pip install https://github.com/deslum/cssdbpy/archive/master.zip

Connection¶

from cssdbpy import Connection ssdb = Connection('127.0.0.1', 8888)

hset¶

Set the string value in argument as value of the key of a hashmap.

ssdb.execute('hset', 'test', 'hash', '1') '1'

hget¶

Get the value related to the specified key of a hashmap.

ssdb.execute('hget', 'test', 'hash') '1'

hdel¶

Delete specified key of a hashmap.

ssdb.execute('hdel', 'test', 'hash') '1'

hincr¶

Increment the number stored at key in a hashmap by num. The num argument could be a negative integer. The old number is first converted to an integer before increment, assuming it was stored as literal integer.

ssdb.execute('hincr', 'test', 'hash', 1) '1'

hscan¶

List key-value pairs of a hashmap with keys in range (key_start, key_end].

ssdb.execute('hscan', 'test', '', '', '-1') ['hash', '1']

hkeys¶

List keys of a hashmap in range (key_start, key_end].

ssdb.execute('hkeys', 'test', '', '', '-1') ['hash']

hsize¶

Return the number of key-value pairs in the hashmap.

ssdb.execute('hsize', 'test') 3

hlist¶

List hashmap names in range (name_start, name_end].

ssdb.execute('hlist', '', '') 3

hgetall¶

Returns the whole hash, as an array of strings indexed by strings.

ssdb.execute('hgetall', 'test') 3

hclear¶

Delete all keys in a hashmap.

ssdb.execute('hgetall', 'test') 3

multi_hset¶

Set multiple key-value pairs(kvs) of a hashmap in one method call.

ssdb.execute('hgetall', 'test') 3

multi_hget¶

Get the values related to the specified multiple keys of a hashmap.

ssdb.execute('hgetall', 'test') 3

multi_hdel¶

Delete specified multiple keys in a hashmap.

ssdb.execute('hgetall', 'test') 3