PostgreSQL rsyslog的使用

一、服务端

1. 安装syslog包

$ sudo yum install -y rsyslog

2. 创建目录

sudo mkdir -p /export/postgreslog/

3. 配置

$ sudo vim /etc/rsyslog.conf
	# Provides TCP syslog reception
	$ModLoad imtcp.so
	$InputTCPServerRun 514
 
	#### GLOBAL DIRECTIVES ####
	$MainMsgQueueSize 500000
	$MainMsgQueueDequeueBatchSize 128
	$MainMsgQueueDiscardMark 20000
	$MainMsgQueueHighWaterMark 16000
	$MainMsgQueueLowWaterMark 4000
 
	$EscapeControlCharactersOnReceive off
	
	# Use default timestamp format
	$ActionFileDefaultTemplate RSYSLOG_TraditionalFileFormat
	# log format
	$template pgFormat,"%msg:R,ERE,2,DFLT:^ \[[0-9]+-[0-9]+\] (#011)?(.*)--end%\n"
	# logfile name
	$template PostgresLogFile,"/export/postgreslog/%hostname%_%programname%/%$year%-%$month%-%$day%/postgresql-%$year%-%$month%-%$day%-%$hour%.log"
 
	# collect log of local0
	local0.* ?PostgresLogFile;pgFormat

4. 启动

$ sudo /etc/init.d/rsyslog restart

二、客户端

1. 安装syslog包

$ sudo yum install -y rsyslog

2. 配置rsyslog

sudo vim /etc/rsyslog.conf
	EscapeControlCharactersOnReceive off 
	local0.* @@rsyslog_server:514

3. 启动rsyslog

$ sudo /etc/init.d/rsyslog restart

4. 配置 postgresql.conf

$ vim postgresql.conf
	log_destination = 'syslog'
	syslog_facility = 'LOCAL0'
	syslog_ident = 'pg-test'

5. reload配置

# select pg_reload_conf();