postgresql 日志分析工具 pgFounie

时间：2010-09-03 来源：大肚熊

pgFounie是一款专门为postgresql设计的日志分析工具。通过对postgresql的log进行分析，生成详细的报告。

三大功能：
* 分析postgresql日志，确认查询语句的执行时间，辅助优化。
* 分析VACUUM命令日志，有助于分析数据库的写活动，辅助制定更好的VACUUM策略。
* 结合Tsung压力测试工具，分析压力测试日志，辅助系统性能测试。

pgFounie特点：

代码

    * pgFouine is written in PHP, is object oriented and easily extensible if you need specific reports.
    * pgFouine is free software and is distributed under the GNU General Public License.
    * pgFouine is designed to parse huge log files with a low memory footprint.
    * You can visit the pgFouine project site hosted by pgFoundry.

pgFounie安装：

[root@daduxiong software]# yum install php
[root@daduxiong software]# rpm -ivh pgfouine-1.2-1.noarch.rpm

pgFounie命令参考：

代码

[postgre@daduxiong ~]$ pgfouine.php --help
Usage: /usr/bin/pgfouine.php -file <file> [-top <n>] [-format <format>] [-logtype <logtype>] [-report [outputfile=]<block1,block2>]
  -file <file>                           log file to analyze
  -                                      read the log from stdin instead of -file
  -top <n>                               number of queries in lists. Default is 20.
  -format <format>                       output format: html, html-with-graphs or text. Default is html.
  -logtype <logtype>                     log type: syslog, stderr or csvlog. Default is syslog.
                                          for stderr, you have to use the following log_line_prefix: '%t [%p]: [%l-1] '
  -report [outputfile=]<block1,block2>   list of report blocks separated by a comma
                                         report blocks can be: overall, hourly, bytype, slowest, n-mosttime,
                                          n-mostfrequent, n-slowestaverage, history, n-mostfrequenterrors,
                                          tsung, csv-query
                                         you can add several -report options if you want to generate several reports at once
  -examples <n>                          maximum number of examples for a normalized query
  -onlyselect                            ignore all queries but SELECT
  -from "<date>"                         ignore lines logged before this date (uses strtotime)
  -to "<date>"                           ignore lines logged after this date (uses strtotime)
  -database <database>                   consider only queries on this database
                                         (supports db1,db2 and /regexp/)
  -user <user>                           consider only queries executed by this user
                                         (supports user1,user2 and /regexp/)
  -keepformatting                        keep the formatting of the query
  -maxquerylength <length>               maximum length of a query: we cut it if it exceeds this length
  -durationunit <s|ms>                   unit used to display the durations. Default is s(econds).
  -title <title>                         define the title of the reports
  -syslogident <ident>                   PostgreSQL syslog identity. Default is postgres.
  -memorylimit <n>                       PHP memory limit in MB. Default is 512.
  -quiet                                 quiet mode
  -debug                                 debug mode
  -profile                               profile mode
  -help                                  this help

事例：
postgresql日志事例：http://pgfouine.projects.postgresql.org/reports/sample_default.html#overallstatsreport
VACUUM日志分析事例：http://pgfouine.projects.postgresql.org/vacuum.html
Tsung支持事例：http://pgfouine.projects.postgresql.org/tsung.html

说明：
pgFounie工具是由PHP语言编写的，在安装时需要先安装php软件包。