FastDHT－高效分布式Hash系統(tǒng)

aobai

同問

happy_fish100

原帖由 flat_peach 于 2009-6-19 10:04 發(fā)表
請問LZ這個與 FastDFS 是什么關系 ？

FastDHT是分布式Hash存儲系統(tǒng)，F(xiàn)astDFS是分布式文件存儲系統(tǒng)。
如果你需要相同文件內容的文件只保存一份時，F(xiàn)astDFS使用FastDHT來存儲文件的簽名（類似MD5）等信息。

honstman

原帖由 flat_peach 于 2009-6-19 10:04 發(fā)表
請問LZ這個與 FastDFS 是什么關系 ？

我也有相同的疑問啊

happy_fish100

Version 1.09  2009-07-01
* correct php extension error info
* fdht_compress.c: make sure syncing is done
* add shell script: stop.sh, restart.sh modified
* add fdhtd as service in Linux platform
* correct get local ip addresses
* common files do not use global vars like g_network_timeout and g_base_path
* fdht_compress.c: use {base_path}/tmp as sort temporary path instead of /tmp
* sync.c: check binlog file format when reading
* client can use proxy for FastDHT
* cache size not division by g_db_count
* protocol add stat cmd
* client retry connect when connection is not connected and keep_alive is true
* multi db use only one env
* support MPOOL (memory only cache as memcached)
* when max_threads set 1, use process instead of thread
* client use non-block socket to increase performance
* hash.c use chain impl by self
* bugfix: never expired / persistent keys not be cleared when clear expired keys
* inc use thread lock for atomicity
* mpool use rwlock, support multi-threads
* change work thread mode
* stat cmd add more info

hnzzqhjgy

學習學習，呵呵。

happy_fish100

Version 1.10  2009-07-19
* ini reader support HTTP protocol, conf file can be an url
* hash does not use macro: HASH_MALLOC_VALUE, add member is_malloc_value
* sockopt.c sendfile and recvfile support non-block socket
* sync.c call tcpsetnonblock after connect
* bug fix: sockopt.c do not set non-block in function tcpsetserveropt
* fdht_compress.c: change global static variable names to avoid conflict

sopato

想問問快樂魚是否做過FASTDHT的壓力測試，對于一套TPS超過12000的集群系統(tǒng)來說，F(xiàn)ASTDHT合適和勝任嗎？

happy_fish100

原帖由 sopato 于 2009-8-10 01:03 發(fā)表
想問問快樂魚是否做過FASTDHT的壓力測試，對于一套TPS超過12000的集群系統(tǒng)來說，F(xiàn)ASTDHT合適和勝任嗎？

做過壓力測試的，MPOOL（純緩存方式）下和memcached做過對比測試，性能不比memcached差。單機QPS是10K級的。

[ 本帖最后由 happy_fish100 于 2009-8-10 09:00 編輯 ]

airzhutao

請問put的速度能有多少？樓主用過BAMBOO DHT嗎？

happy_fish100

原帖由 airzhutao 于 2009-8-11 10:12 發(fā)表
請問put的速度能有多少？樓主用過BAMBOO DHT嗎？

MPOOL方式不比memcached慢吧，BDB方式稍稍慢一些。
對BAMBOO DHT沒有研究過。今天看了一下BAMBOO DHT，用java寫的吧。性能上應該比不過FastDHT。