mutex007
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9 years ago
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on: Log Structured Merge Trees
I am curious how an inverted index will be implemented efficiently atop an LSM tree. Maybe batch parts of the posting list under a numeric key and when performing an intersection operation between two lists, you interate using a range scan. Could work but i wonder how fast Read operations will be. Anybody attempted yet?
mutex007
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12 years ago
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on: MySQL vs MongoDB vs NuoDB vs Amisa Server features comparison
elastic search will score no more than 7 points on our feature table. We are very aware of their product and currently running benchmarks on it.
If you are interested, i can personally email you the results
mutex007
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12 years ago
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on: MySQL vs MongoDB vs NuoDB vs Amisa Server features comparison
we picked the most popular out of the RDBMS, NOSQL and newSQL world. In the future we will compare against more systems. We are actually in the process of releasing benchmarks as well for each of the above systems. We will be sure to include postgres
mutex007
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12 years ago
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on: MongoDB 2.6 Released
$700 annually. Please read well before you misrepresent us.
By the way Partitioning by Hash and Range as we have stated means "Sharding"
mutex007
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12 years ago
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on: MongoDB 2.6 Released
The price is unbelievably fair. Try deploying mysql in the cloud and while you are at it, you get Redis as well for cache and then you hit the wall you need search in your application, so you deploy elastic search as a service as well. Do the math and compare to ours.
Our pricing starts as low as $15 per month
The cheapest instance of amazon cloudsearch is around $79 monthly, You then have to deploy a transactional DBMS and then most likely S3 for storage as well.
mutex007
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12 years ago
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on: MongoDB 2.6 Released
In the case of MongoDB, dump a blob called BSON which itself can be larger than the JSON itself. Paradoxically this is touted as a space efficient binary serialization you then read it back using an index or something.
mutex007
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12 years ago
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on: MongoDB 2.6 Released
By the way if you are looking for all the above functionality provided by all the DBMS you mentioned in a single DBMS instance, you can check out amisaserver.com. Polygot persistence is just another fad.
mutex007
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12 years ago
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on: Would you use JavaScript compiled to C for your server applications
Sounds good to me. Might try it out.
mutex007
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12 years ago
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on: RethinkDB raises an $8M Series A
Assuming your 70ms in transit is accurate, although you have not provided details on how you measured that. 20ms svr processing time is only 50 inserts per second which is simply untenable in respect to a high performing rethink..
In effect if i wanted to do 10000 single writes per second typical of most interactive systems, i will need 200 nodes to pull that Off.
mutex007
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12 years ago
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on: RethinkDB raises an $8M Series A
Assuming a tcp connection can be established in 15ms worst case and another 10ms for data transmission, 65ms spent by the dbms for a single insert is incredibly slow.
I am very aware of the increase in performance of batch inserts and batched disk writes and so on.. as an individual who has worked on the development of a major DBMS.
mutex007
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12 years ago
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on: RethinkDB raises an $8M Series A
Just curious, how many indexes were on the structure you were inserting? Also, i am assuming 90ms per structure, if that is correct, then that is equal to 11 inserts per second which is unfortunately very slow..
mutex007
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12 years ago
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on: RethinkDB 1.11 is out: query profiler, new streaming algorithm, devops features
Shameful self promotion. However i have to say the SQL and your type system makes me gravitate towards your platform. Can Kill mongoCache for sure
