Golang--gopher Beijing Congress (2)

This is a creation in Article, where the information may have evolved or changed.

Three or seven Bull CEO

Qlang:github Qiniu/qlang

Microservice architecture:http://martinfowler.com/articles/microservices.html

Service governance

• Authorization
• Logging
• Change Management
• Central configuration
• Scale in and scale out
• Overload Protection
• Service degradation
• Monitor Performance and Health
• Manage how and by whom services is used
• Topology Discovery and failure recovery

Overload Protection

• N = Alert threshold
• Important Things
• Keep Limit to N*2,not N
• Kill slow Requests (SLA)

Dave Cheney Head of the Australian Golang Community

http://dave.cheney.net/

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V. Late debate

rust-lang.org

Goerr: = f (x) if err! = Nil {    Retrun err;} rusttry! (f (x)); F (x)?

Six, the original shooter CEO

Use of gomobile and dynamic libraries

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Seven, Mitja

Github.com/mijia

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Viii. Marcel van Lohuizen--Google Go Team

Golang.org/x/text implementation

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Nine, Mao Jian--bilibili

BFS Distributed Small file storage: GITHUB.COM/TERRY-MAO/BFS

Based on Facebook Haystack Paper

• Core: Proxy, directory, Pitchfork, store
• Operations: Ops
• Dependency: HBase user data zookeeper meta data
• Flow Trend Proxy->directory->store

Ten, Li Bingyi--Baidu

If r<= 0x7F {    switch case     ' 0 ' <= r && R <= ' 9 ':        return false Case    ' a ' <= R && R <= ' z ':        return false case    ' A ' <= r && r <= ' z ':        return false case    = =        return false
  return true}if Unicode. Isletter (r) | | Unicode. IsDigit (r) {    return False  }

Xi. founder of Tidb Pingcap

1.interface Performance Issues

var val interface{}val = Int64 (10)

Assigning a shape to a interface will touch the memory allocation once and there will be an order of magnitude overhead

var d datumd.setint64 (10)

10 times times more than a struct.

2.PROTOBUF Go default implementation performance is low, recommended Gogo replacement

3. Across data center replication, Raft (Port from ETCD) author Diego Ongaro. Relatively multi-paxos simple mature stable

12. Chen Hui-ai start-up company

1. Goku Search: Github.com/huichen/wukong

Master process for sending and receiving user requests. The word breaker is responsible for participle. The indexer Association, which is responsible for locating the index. Sequencer.

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Computational technology Aha:ad HOC Analytics engine based on Goku search

Github.com/huichen/aha

2.sego participle: huichen/sego

Double-array trie realization is twice times efficiency of general trie

Github.com/adamzy/cedar-go

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3. Maitreya Buddha machine Learning: HUICHEN/MLF

Supervised learning: Maximum entropy classification model, decision tree model

Non-supervised learning: clustering problems

Online learning: Online gradient degradation model

Neural network: Restricted Boltzmann Machine

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