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How to force a mongod to become primary in a replica set?
1) I have 3 mongodbs running in a replica set mongod --fork --logpath a.log --smallfiles --oplogSize 50 --port 27001 --dbpath data/z1 --replSet z mongod --fork --logpath b.log --smallfiles --oplogSize 50 --port 27002 --dbpath data/z2 --replSet z mongod --fork --logpath c.log --smallfiles --oplogSize 50 --port 27003 --dbpath data/z3 --replSet z 2) Now 27001 and 27002 are down. What do I need to do
redis-faina: a query analysis tool for Redis
Welcome to the Instagram Engineering Blog, where we share insights on building and scaling our service. As we mentioned in our previous blog, we’re big fans of tools and techniques for introspecting our live traffic to see what exactly is going on. One tool we use frequently is PGFouine, a query traffic analyzer for PostgreSQL. We recently found that we also needed a similar tool for Redis, our sw
Hstore development for 9.4 release: part 3
I returned back home from PGCon.EU-2013 conference, Dublin, Ireland, where we gave two talks - Next Generation of GIN and Binary storage for nested data structures and application to hstore data type. These projects as well as visiting the conference (I, Teodor Sigaev and Alexander Korotkov) were sponsored by EngineYard company and we hope it will supports us in other projects. I already wrote abo
F.18. hstore — hstore key/value datatype
This module implements the hstore data type for storing sets of key/value pairs within a single PostgreSQL value. This can be useful in various scenarios, such as rows with many attributes that are rarely examined, or semi-structured data. Keys and values are simply text strings. This module is considered “trusted”, that is, it can be installed by non-superusers who have CREATE privilege on the cu
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Instagram/redis-faina · GitHub - A query analyzer that parses Redis' MONITOR command for counter/timing stats about query patterns
How Can I Browse/View The Values Stored in Redis
pgdev
texture.io / alphabetum: PostgreSQL (incl. hstore and JSON) vs MongoDB