Sergio Ayestarán

Sergio Ayestarán has asked 32 questions and find answers to 34 problems.

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About

Distributed systems
- Cassandra/Redis/PostgreSQL/Custom NoSQL databases
- Custom map/reduce algorithms
- Web crawlers
- Design and setup of fault tolerant platforms for distributed systems

Sergio Ayestarán questions

How to prevent traffic to/from a slow Cassandra node using Python
Is there a pymongo (or another Python library) bulk-save?
Query to get subnets using IPs on PostgreSQL
Which NoSQL databases support text array columns (and indexes on this columns) like the postgreSQL text[] type?
Serialize a Python dict into a Cassandra 1.2 column
moving Cassandra snapshots to a different disk/server/datacenter
Redis script to return an average
Error with time-consuming REST service in Python
Cassandra 1.2 inserting/updating a blob column type using Python and the cql library
Cassandra: how to get total table size / estimate row count

Sergio Ayestarán answers

Cassandra - search by primary key using an arbitrary subset of the primary key columns
Autocomplete getting data from a huge table
Cassandra Replicas Down during nodetool repair?
Serialize a Python dict into a Cassandra 1.2 column
Redis script to return an average
How can I email myself an error log from Flask?
how to determine a balanced or perfectly balanced Binary search tree ( just from the picture )
How to compute a double precision float score from the first 8 bytes of a string in Python?
Oracle 11g - why is SELECT COUNT(*) infinitely slower than SELECT *?
Converting lat-long to PostGIS geometry without querying the database