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Build High Performance
     Weibo System
        @TimYang
•
    • 140
    •
    •
•    QCon 2010

•   WDC 2010
Agenda
3        4




2        1
Part 1
(   )
MySQL


•
•
•   hash

•
•          user_timeline index
•
•
    •
    •   5

•
MySQL + cache
•
•
• cache
  •
  •
NoSQL

“Databases are specializing – the “one
size fits all” approach no longer applies.”


                          MongoDB
NoSQL?
•
    • Redis
    • MongoDB
•
    • Cassandra
• MongoDB
• Redis
• HBase
• Cassandra
Redis -
•
    • snapshot -
    • vm -
    • diskstore -
    • aof -
Redis -

• string: key value redisObject 16 bytes/item
• list:           40 bytes / item

• hash: zipmap(<64)
• set/sorted set
Redis - Replication


•    rdb

•
Redis -
Redis -

•
•                       failover

•   list/set       (optional)
• MySQL
• NoSQL   MySQL   cache
Part 2
(   )
→   →
Web     cache


    cache



•
“Web         json                  cache
                    json
       (              )            2~5K
 ,     xml    10k          ,   protobuf
               500             ”
RDBMS→
Key value (JSON)→
Protocol buffers(binary)
JSON

• DB
• Cache
• Message Queue
• API
PB

• Numeric: varint, from 1 byte
•
•               Java, C++, Python...
•
•      cache



    • “192.168.0.1” → “0xc0a80000” → varint
Benchmark


                        Text
                         Text




(   http://code.google.com/p/thrift-protobuf-compare/wiki/Benchmarking)
“We would like to provide public APIs that
accept protocol buffers as well as XML, both
because it is more efficient and because we're
just going to convert that XML to protocol
buffers on our end anyway.”
                            - Google
•
•

•
“   ”
•   LAMP



•          1ms



•
• MQ stat
• MQ Processor stat
?

“1   ”
• Timeline

•
•
    •    cache
1.

2.

3.

4.   cache             master

5.       replication
•   5
•   5

•
•       5

•
    •
•       5

•
    •
    •
• RAM is the new disk
•
“Percona Server now both SQL and NOSQL
HandlerSocket,
100     rps    12cores/24threads and
380GB of RAM, mysql
Redis                         NoSQL
        ”
@jackbillow “ 1.   PK   lookup 2.      cache
               ”



@kobe    “                  innodb
               ”



@TimYang “
InnoDB             Adaptive Hash Indexes
hash                                       ”
•      NoSQL

    •                       binlog    Redis

    • jbinlog https://github.com/tangfl/jbinlog
Part 3
app
•
    •
    • spam
•
•
Text
•
• GZIP
•
Part 4
“@       Zheng:“


                                       ” //@   :



@bian                  " " http://t.cn/h0k4r
 (49)|             (15)”



                   2   14   10:36    (22) |    (10)
•
•
•
    •
    •
    •
•
    •
    •
    • cache
•
•

•
Timeline




           Memcached   MySQL


            Redis
•
•   RAM

•
Q&A

@TimYang

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High Performance Weibo QCon Beijing 2011

Editor's Notes

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  32. &amp;#x76F8;&amp;#x540C;&amp;#x7A7A;&amp;#x95F4;&amp;#xFF0C;5&amp;#x500D;&amp;#x5BB9;&amp;#x91CF;\n
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