traffic server 安装配置

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1. 安装软件

1.1. 依赖系统安装以下软件 必须是32位的

gcc-c++
glibc-devel.i586
db4-devel.i586
openssl-devel.i586
tcl-devel.i586
expat-devel.i586

1.2. 新建代码下载目录

  mkdir /tmp/ts

1.3. checkout 代码

  cd /tmp/ts
  svn checkout   http://svn.apache.org/repos/asf/incubator/trafficserver/traffic/trunk   traffic-trunk.svn

1.4. 生成configure文件,build 代码，安装

  cd /tmp/traffic-trunk.svn;
  autoreconf -i  ;./configure --prefix=/home/ts -;make -j32;make install

1.5. 修正存在问题

由于代码问题，安装好后需要做一些link,才能让软件正常运行（可能是代码从yahoo迁移过来，还有yahoo的痕迹没改彻底）

    mkdir /home/ts/conf ;cd /home/ts/conf ;ln -s /home/ts/etc/trafficserver yts
    mkdir /home/ts/conf/yts/internal/
    代码里有一个相对路径写错了，同样需要做一个link来解决
    mkdir /home/ts/home ;cd /home/ts/home ;ln -s /home/ts ts

至此，安装完成

2. 配置软件，主要配置文件有3个

配置文件都在 /home/ts/etc/trafficserver
主要有3个需要修改

2.1. 主配置文件 records.config

  CONFIG proxy.config.proxy_name STRING cache1 ### 修改成cache的server name即可
  CONFIG proxy.config.cluster.ethernet_interface STRING eth0 ### 修改成需要侦听的interface名称，默认是 null
  CONFIG proxy.config.admin.user_id STRING root ### 用来运行 traffic server 的用户,默认是nobody
  CONFIG proxy.config.http.server_port INT 80 ### traffic server 侦听的端口，默认是8080

其他配置可自习根据情况修改

2.2. proxy 代理配置remap.conf

如果要对 加速
则写为

  map  (或者域名)
       |                             |_____ 代理服务器需要访问的源站点的ip或者域名
       |__用户最终访问的域名

2.3. cache 存储空间配置文件 storage.config

使用raw deivces，将物理磁盘绑定到raw device

2.3.1. 用mknod 创建虚拟raw 设备

   mknod /dev/rawctl c 162 0
    chmod 600 /dev/rawctl  这个很重要，还需要给与运行traffice server的属主，我是用root运行，所有这样就可以了
        mknod /dev/raw_sdb c 162 1
        mknod /dev/raw_sdc c 162 2

2.3.2. 绑定物理磁盘到raw 设备

    /usr/bin/raw /dev/raw_sdb /dev/sdb
    /usr/bin/raw /dev/raw_sdc /dev/sdc

2.3.3. 查询设备绑定情况

    /usr/bin/raw -q /dev/raw/raw_sdb
   或者
   /usr/bin/raw -a

2.3.4. 计算raw空间

    blockdev --getsize /dev/raw_sdb
    blockdev --getss /dev/raw_sdb

让后将这2个值相乘得到 raw最终值 即下面的 300000000000

2.3.5. 修改 storage.config 输入

  /dev/raw_sdb   300000000000
  /dev/raw_sdc   300000000000

3. 管理软件

3.1. 启动manager

  nohup  /home/ts/bin/traffic_manager  >../var/log/trafficserver/ts.log  2>&1 &

查看进程情况

  ps -ef

应该能看到

  bin/traffic_server -M -A8:X ##server 服务进程

  #netstat -npa |grep traff
  tcp        0      0 0.0.0.0:20098               0.0.0.0:*                   LISTEN      18117/traffic_manag
  tcp        0      0 0.0.0.0:9898                0.0.0.0:*                   LISTEN      18117/traffic_manag
  tcp        0      0 0.0.0.0:80                  0.0.0.0:*                   LISTEN      18117/traffic_manag
  tcp        0      0 0.0.0.0:8083                0.0.0.0:*                   LISTEN      18117/traffic_manag
  tcp        0      0 0.0.0.0:8084                0.0.0.0:*                   LISTEN      18148/traffic_serve
  tcp        0      0 0.0.0.0:8088                0.0.0.0:*                   LISTEN      18117/traffic_manag
  udp        0      0 172.22.26.91:29611          172.22.5.128:53             ESTABLISHED 18148/traffic_serve
  unix  2      [ ACC ]     STREAM     LISTENING     738846890 18117/traffic_manag ./conf/yts//process_server
  unix  2      [ ACC ]     STREAM     LISTENING     738846893 18117/traffic_manag /home/ts/etc/trafficserver/mgmtapisocket
  unix  2      [ ACC ]     STREAM     LISTENING     738846895 18117/traffic_manag /home/ts/etc/trafficserver/eventapisocket
  unix  2      [ ACC ]     STREAM     LISTENING     738847082 18117/traffic_manag /home/ts/etc/trafficserver/cli
  unix  2      [ ]         DGRAM                    738846975 18148/traffic_serve
  unix  3      [ ]         STREAM     CONNECTED     738846917 18117/traffic_manag ./conf/yts//process_server
  unix  3      [ ]         STREAM     CONNECTED     738846916 18148/traffic_serve
  unix  2      [ ]         DGRAM                    738846880 18117/traffic_manag

3.2. 管理

3.2.1. traffic_line

- /home/ts/bin/traffic_line -x 生效，不需要重启应用

3.2.2. start_traffic_shell

• /home/ts/bin/start_traffic_shell

  %提示符
  %show
  % show:cache  ###cache 基本配置
  FTP Caching ---------------------------- off
  NNTP Caching --------------------------- on
  Ignore User Requests To Bypass Cache --- on
  Maximum HTTP/FTP Object Size ----------- 1024000
  Freshness
    Verify Freshness By Checking --------- When The Object Has Expired
    Minimum Information to be Cacheable -- A Last Modified Time
    If Object has no Expiration Date:
      Leave it in Cache for at least ----- 86400 s
      but no more than ------------------- 86400 s
    FTP Cached Objects Expire After ------ 259200 s
  Variable Content
    Cache Responses to URLs that contain
      "?",";","cgi" or end in ".asp" ----- on
    Alternates Enabled ------------------- off
    Vary on HTTP Header Fields:
      Text ------------------------------- NULL
      Images ----------------------------- NULL
      Other ------------------------------ NULL
    Cache responses to requests containing cookies for:
      All Content-types

  % show:cache-stats

  Bytes Used --- 74 GB
  Cache Size --- 1395 GB
  --RAM Cache--
  Total Bytes -- 1497216000
  Bytes Used --- 950272
  Hits --------- 34
  Misses ------- 88

  % show:proxy-stats

  Document Hit Rate -------- 58.490568 %   *
  Bandwidth Saving --------- 10.361657 %   *
  Cache Percent Free ------- 94.634068 %
  Open Server Connections -- 0
  Open Client Connections -- 0
  Open Cache Connections --- 0
  Client Throughput -------- 0.000000 MBit/Sec
  Transaction Per Second --- 0.000000

  * Value represents 10 second average.

其他请大家参考帮助或者自己测试使用

3.2.3. logstats

• /home/ts/bin/logstats –help

  Usage: logstats [-l logfile] [-o origin[,...]] [-O originfile] [-m minhits] [-inshv]
    switch__________________type__default___description
    -h, --help              tog   true      Give this help
    -f, --log_file          str   (null)    Specific logfile to parse
    -o, --origin_list       str   (null)    Only show stats for listed Origins
    -O, --origin_file       str   (null)    File listing Origins to show
    -i, --incremental       tog   false     Incremental log parsing
    -S, --statetag          str   (null)    Name of the state file to use
    -t, --tail              int   0         Parse the last  seconds of log
    -s, --summary           tog   false     Only produce the summary
    -y, --ymon              tog   false     Output is formatted for YMon/Nagios
    -Y, --ysar              tog   false     Output is formatted for YSAR
    -m, --min_hits          i64   0         Minimum total hits for an Origin
    -a, --max_age           int   0         Max age for log entries to be considered
    -l, --line_len          int   78        Output line length
    -T, --debug_tags        str   (null)    Colon-Separated Debug Tags
    -V, --version           tog   false     Print Version Id

例如

  logstats -i 

会根据日志分析cache的命中等情况

3.2.4. traffic_server

如果服务器down掉，默认会生成core文件，在/home/ts
使用

  /home/ts/bin/traffic_server -c core.1234

来阅读coredump文件

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