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A comment on On moving from CouchDB to Riak.

Re:On moving from CouchDB to Riak by electrum on Monday March 07, 2011 @01:01PM (#2298012)
> We rolled out a cluster of 5 nodes and 1024 partitions. Each node has 8gig of memories, 3x1Tb disk in RAID5.

This hardware configuration doesn't make sense. 8 gigabytes of memory is pathetically small today. 32 gigs is basically standard, with 64 gigs costing little extra. RAID 5 with only three disks will have horrible performance. A single machine with 32/64 gigs and 12-16 disks in a better RAID configuration should perform better at a lower operational cost.

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Re:On moving from CouchDB to Riak by timanglade on Monday March 07, 2011 @01:37PM (#2298165)
Don’t forget what node separation gets you in terms of availability and partition-tolerance. But I do agree that the 8gig, RAID5 and 3-disk specs seem odd. It'd be useful to get some additional details from Franck or the Basho folks as to why they chose those.
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