I am running LevelDB on ZFS in Solaris (OmniOS specifically) in Amazon AWS. The iops is very very low. There is no significant progress with tuning too.
Why I chose ZFS is that since LevelDB requires the node to be stopped before taking a backup, I needed a filesystem with snapshot ability. And the most favourable Amazon community AMI seemed to be using OmniOS (fork of Solaris). Everything is fine, except the performance. I did all the AWS tuning proposed by Basho but still Basho Bench gave twice iops on Ubuntu as compared to OmniOS, under same conditions. Also, I am using riak-js client library, and its a 5 node Riak cluster with 8GB ram each. Could not yet figure out what is really causing the congestion in OmniOS. Any pointers will be really helpful. Thanks and regards, Hari John Kuriakose.
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