postgresql 日志分析工具 pgFounie

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

[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。