一)安装配置

环境:
CentOS 6.2

开始安装：
  首先关闭selinux：

#vi /etc/sysconfig/selinux
SELINUX=disabled
setenforce 0

将之前官网下载好的压缩包进行解压，并安装。

#tar -zxvf splunk-6.0.1-189883-Linux-x86_64.tgz
#cd ..
#mv splunk /usr/local
#cd /usr/local/splunk/bin
#./splunk enable boot-start

第一次安装会提示：

This appears to be your first time running this version of Splunk.
Copying ‘/usr/local/splunk/etc/openldap/ldap.conf.default‘ to ‘/usr/local/splunk/etc/openldap/ldap.conf‘
Moving ‘/usr/local/splunk/share/splunk/search_mrsparkle/modules.new‘ to ‘/usr/local/splunk/share/splunk/search_mrsparkle/modules‘.
Init script installed at /etc/init.d/splunk.
Init script is not configured to run at boot.

根据提示进行copy操作，然后进行安装：

#/etc/init.d/splunk start
Starting Splunk...
Splunk> Take the sh out of IT.
Checking prerequisites...
        Checking http port [8000]: open
        Checking mgmt port [8089]: open
        Checking configuration...  Done.
                Creating: /usr/local/splunk/var/lib/splunk
                Creating: /usr/local/splunk/var/run/splunk
                Creating: /usr/local/splunk/var/run/splunk/appserver/i18n
                Creating: /usr/local/splunk/var/run/splunk/appserver/modules/static/css
                Creating: /usr/local/splunk/var/run/splunk/upload
                Creating: /usr/local/splunk/var/spool/splunk
                Creating: /usr/local/splunk/var/spool/dirmoncache
                Creating: /usr/local/splunk/var/lib/splunk/authDb
                Creating: /usr/local/splunk/var/lib/splunk/hashDb
        Checking critical directories...        Done
        Checking indexes...
                Validated: _audit _blocksignature _internal _thefishbucket history main summary
        Done
New certs have been generated in ‘/usr/local/splunk/etc/auth‘.
        Checking filesystem compatibility...  Done
        Checking conf files for typos...        Done
All preliminary checks passed.
Starting splunk server daemon (splunkd)...
Done
                                                           [确定]
Starting splunkweb...  Generating certs for splunkweb server
Generating a 1024 bit RSA private key
.............++++++
.....................................................++++++
writing new private key to ‘privKeySecure.pem‘
-----
Signature ok
subject=/CN=localhost.localdomain/O=SplunkUser
Getting CA Private Key
writing RSA key
                                                           [确定]
Done
If you get stuck, we‘re here to help.
Look for answers here: http://docs.splunk.com
                                                                                                                                                            
The Splunk web interface is at http://127.0.0.1:8000

打开浏览器，进行访问,同时确保防火墙和访问端口:

#service iptables stop

二)常用语法

全文搜索

    搜索框直接输入”搜索词“  

　 purchase

    查找匹配词”purchase“

字段搜索

    字段名=”搜索词“

    source="Sampledata.zip:./apache3.splunk.com/access_combined.log"

    查找数据来源为"Sampledata.zip:./apache3.splunk.com/access_combined.log"

通配符搜索

    source="Sameledata.zip:.apache*"

    查找数据来源为apache开头的所有来源

逻辑组合搜索

source="Sampledata.zip:./apache3.splunk.com/access_combined.log" purchase NOT 200

   查找数据来源为"Sampledata.zip:./apache3.splunk.com/access_combined.log" 并且字符串匹配词 "purchase" 并且字符串中不匹配200

嵌套搜索

   查找错误码

　 error OR failed OR (souretype = access*(404 OR 500 OR 503))

   当然你可以加上status字段

   (sourcetype=access*(status=404 OR status=500 OR status=503)) host="apache3.splunk.com"

使用管理命令

   source="Sampledata.zip:./apache*" | top 10 product_id

   获取最多访问的10个产品id　

   source="Sampledata.zip:./apache*" | top  limit=1 clientip

   获取消费最多的客户端ip

   source="Sampledata.zip:./apache*"  action=purchase clientip=233.77.49.50|stats count, values(product_id) by clientip

   获取指定客户端IP购买的产品,并汇总数量

   source="Sampledata.zip:./apache*" category_id = flowers| statsdc(clientip)

   统计有多少用户购买了鲜花类的产品

　 source="Sampledata.zip:./apache*" category_id=flowers| stats count BY clientip

   每个独立用户购买鲜花的数量

   source="Sampledata.zip:./apache*" category_id=flowers| stats count AS "购买鲜花数量" BY clientip |rename clientip AS 客户

　 我们可以对结果进行重命名

子搜索

   子搜索部分使用[]起来，中括号的部分会先被执行，然后再执行外面搜索部分。

   子搜索命令需用search开头

   子搜索的速度稍微慢一些

   source="Sampledata.zip:./apache*" action=purchase [search sourcetype=access_* action=purchase|top limit=1 clientip|table clientip] | stats count, values(product_id) as product_id by clientip |rename count AS "购买数量",product_id AS "购买产品内容" clientip AS "vip用户"

附：官网文档实验中用到的2个数据文本样例压缩包、及spl_splunk语法对比表。

注：由于博客文件上传容量限制，splunk安装压缩包无法上传，需要的朋友请官网自行下载。

本文出自 “Aaron” 博客，请务必保留此出处http://qishiding.blog.51cto.com/3381613/1355191

SPLUNK 安装配置及常用语法