mongodb internals

First, the index introductionIn MongoDB, indexes are used to support efficient queries. If there is no index, MONGODB must scan each document in the entire collection to find a matching document. However, if an appropriate index is established,

C language programming example of MongoDB in Linux The following describes the C language programming example of MongoDB on the Linux platform. Assume that MongoDB has been installed. 1. download and install the MongoDB C language driver Here the

Yesterday, search MongoDB data, introduction of the application of more, the principle of the introduction of not much. Rough to look at, overall, the design of the two ideas are similar, mainly through the range to distribute data, background

OverviewMongoDB provides clients the ability to perform write operations in bulk. Bulk write operations affect a single collection. MongoDB allows applications to determine the acceptable level of acknowledgement required for bulk write

DiscussonHackerNewsMongoDB2.5.0 (anunstabledevbuild) hasa? Newimplementationofthe "Matcher". theoldmatcheristhebitofcodein=thattakesaqueryanddecidesifadocumentmatchesaqueryexpression. Italsohasto Discuss on Hacker News MongoDB 2.5.0 (an unstable dev

Synchronization processSelect the node from which to pull the oplog1. Applies the op executes this op log2. Writes the op to its own oplog (also local. oplog. rs) write this op log to your oplog3. Requests the next op request to which the next op

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  Phase 1: Basic stage (basic PHP programmer)   Focus    LNMP (core is installation configuration basic operation)   target   1. Able to complete basic LNMP system installation, simple configuration maintenance;   2. Be able to do basic simple

Original: Http://stackoverflow.com/questions/7888880/what-is-redis-and-what-do-i-use-it-forRedis = Remote Dictionary ServiceTl;dr:if you can map a use case to Redis and discover you aren ' t @ risk of running out of RAM by using Redis there is a

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