Recently in the use of Elkstack to the System log analysis, on the internet also saw the use of logstash cases, but found that can not be resolved properly, and then re-take the time to do regular calculations, the main code is as follows:input{file{type=> "Mysql-slow" path=> "/var/lib/mysql/slow.log" start_ position=>beginning sincedb_write_interval=>0codec=> multiline{pattern=> "^#[emailprotected]:" negate=>truewhat= > "Previous" }}}filter{if[messa
Use Logstash to collect PHP-related logs. three types of logs are collected here.
PHP error log, PHP-FPM error log and slow query log
Set in php. ini
Error_log =/data/app_data/php/logs/php_errors.log
Set in php-fpm.conf
Error_log =/data/app_data/php/logs/php-fpm_error.log
Slowlogs =/data/app_data/php/logs/php-fpm_slow.log
The PHP error log is as follows:
[29-Jan-2015 07:37:44 UTC] PHP Warning: PHP Startup: Unable to load dynamic libra
Reference: http://kibana.logstash.es/content/elasticsearch/template.htmlThe fields defined in the template are parsed according to the template, and no definitions are resolved according to the default template of ESElasticsearch is a schema-less system, but schema-less does not represent no schema, but ES will try to guess the field type mappings you want based on the underlying type of the JSON source data. If you are not satisfied with this dynamically generated mapping, or want to use some o
1. Boot automatically start Redis1), copy the Redis_init_script file under Redis directory utils to/ETC/INIT.D and rename it to REDISD, then run chmod u+x REDISD2), modify the redis.conf under the Redis root directory, change the daemonize to Yes, and change the pidfile to/var/run/redis_6379.pid3), copy the redis.conf under the Redis root directory to the/etc/redis/directory and rename it to 6379.conf4), in the console input Chkconfig REDISD on, configured for boot start, if the error is in the
Logstash Grok patternusername[a-za-z0-9_-]+user%{username}int (?: [+]? (?: [0-9]+)] base10num (? This article is from the "Wandering Fish" blog, please make sure to keep this source http://faded.blog.51cto.com/6375932/1770752Logstash Grok pattern
Custom Grok formatIn the folder sibling directory of the Conf file, usually under the Patterns folder, create your own pattern file, such as the extra file# contents of./patterns/postfix:Postfix_queueid [0-9a-f]{10,11}
Use example for log format: Jan 1 06:25:43 mailserver14 postfix/cleanup[21403]: Bef25a72965:message-id=Conf configuration:grok{Patterns_dir = "./patterns"Match = = ["Message", "%{syslogbase}%{postfix_queueid:queue_id}:%{greedydata:
Danbo Time: 2016-03-131. Save into ElasticsearchLogstash can try different protocol implementations to complete the work of writing data to Elasticsearch, which describes the HTTP approach in this section.Example configuration:Output {elasticsearch {hosts= ["192.168.0.2:9200"] Index="logstash-%{type}-%{+yyyy. MM.DD}"Document_type="%{type}"Workers=1flush_size=20000Idle_flush_time=TenTemplate_overwrite=true }}Explain:Bulk SendFlush_size and Idle_flus
Collect three kinds of logs here
PHP error log, php-fpm error log and slow query log
Set in php.ini
Error_log =/data/app_data/php/logs/php_errors.log
Set in php-fpm.conf
Error_log =/data/app_data/php/logs/php-fpm_error.log
Slowlog =/data/
Applicable scenario -log time to Unix time sample log:
2017-03-21 00:00:00,291 INFO [dubboserverhandler-10.135.6.53:20885-thread-98] I.w.w.r.m.requirementmanager [ REQUIREMENTMANAGER.JAVA:860] Fetch no data from Oracle 2017-03-21 00:00:00,294
MySQL DatabaseDriver = "Path/to/jdbc-drivers/mysql-connector-java-5.1.35-bin.jar"//DriverClass = "Com.mysql.jdbc.Driver";URL = "Jdbc:mysql://localhost:3306/db_name"; The url,db_name of the connection is the database nameSQL Server DatabaseDriver =
Python decorator use example and actual application example, python example
Test 1
Deco is running, but myfunc is not running
Copy codeThe Code is as follows:Def deco (func ):Print 'before func'Return func
Def myfunc ():Print 'myfunc () called'Myfunc = deco (myfunc)
Test 2
Call myfunc in the required deco to executeCopy codeThe Code is as follows:Def deco (func
/*======================================================================
A Globalmem Driver As an example of char device drivers
There are two same globalmems in this driver
This example was to introduce the function of File->private_data
The initial developer of the original code is Baohua Song
======================================================================*/
#include #include #include #include #in
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