lastcanal · HackerTrans

lastcanal

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SSDB: A fast on-disk NoSQL database that uses the Redis protocol

ideawu.com

10 pointsby lastcanal12 ปีที่แล้ว8 comments

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lastcanal

12 ปีที่แล้วdiscuss

Then they'd need some very powerful mining equipment! Bitcoin uses merkel trees to ensure transactions in blocks never change.

lastcanal

12 ปีที่แล้วdiscuss

OVH has a big datacenter outside Montreal.

http://www.ovh.com/ca/en/vps/

lastcanal

12 ปีที่แล้วdiscuss

It uses LevelDB as the storage engine and lets you configure the cache parameters from the configuration file.

   leveldb:
	# in MB
	cache_size: 500
	# in KB
	block_size: 32
	# in MB
	write_buffer_size: 64
	# in MB
	compaction_speed: 1000
	# yes|no
	compression: no

lastcanal

12 ปีที่แล้วdiscuss

I don't have any production experience with it, but I did load the entire Bitcoin Testnet blockchain into it without issue. In Redis the same dataset required ~6 gigs of RAM.

lastcanal

12 ปีที่แล้วdiscuss

The major advantage (depending on your use case) is that your dataset is not limited to the size of your available memory.

lastcanal

13 ปีที่แล้วdiscuss

Take a look at Lamernews (https://github.com/antirez/lamernews). It is written in Ruby by the author Redis. It uses Redis as the primary database.

Here is it in action: http://lamernews.com/