SugarCRM6.5支持使用Elasticsearch记录日志

作者：James Zhu ([e-mail])

创建日期：2018-09-03

修改步骤

1. 在composer.json文件中引入 elasticsearch-php：

   {
       "require": {
           "elasticsearch/elasticsearch": "~6.0"
       }
   }

   注意：elasticsearch v6 要求 PHP7及以上 版本，如若不是请自行修改成合适的版本。

2. 使用 composer 安装 elasticsearch-php

   curl -s http://getcomposer.org/installer | php
   php composer.phar install --no-dev

3. 修改config_override.php文件，加入ESLogger相关配置：

   $sugar_config['logger']['es']['enable'] = true;
   $sugar_config['logger']['es']['host'] = 'localhost:9200';
   // $sugar_config['logger']['es']['index'] = 'sugarcrm';
   $sugar_config['logger']['es']['suffix'] = '%Y%m%d';

4. 新建custom/include/SugarLogger/ESLogger.php文件：

   require_once('include/SugarLogger/LoggerTemplate.php');
   require_once('vendor/autoload.php');
   
   class ESLogger implements LoggerTemplate {
   
       private $client;
       private $index;
       private $data;
   
       /**
        * Constructor
        *
        * Reads the config file for logger settings
        */
       public function __construct() {
           // load configuration
           $config = SugarConfig::getInstance();
           // if ESLogger enabled
           if(!$config->get('logger.es.enable')) {
               return false;
           }
           // get es host
           $eshost = $config->get('logger.es.host');
           if(empty($eshost)) {
               throw new InvalidArgumentException('[logger.es.host] not defined', 1);
           }
           // init es client
           $this->client = Elasticsearch\ClientBuilder::create()
               ->setHosts([$eshost])
               ->setRetries(0)
               ->build();
           // get index from config
           $this->index = $config->get('logger.es.index');
           // default index
           !empty($this->index) || $this->index = 'sugarcrm';
           // get suffix from config
           $suffix = $config->get('logger.es.suffix');
           if($suffix) {
               $this->index .= '-'.date(str_replace('%', '', $suffix));
           }
           // set ESLogger as default logger
           LoggerManager::setLogger('default', __CLASS__);
           unset($config);
       }
   
       /**
        * @see LoggerTemplate::log()
        */
       public function log($level, $message) {
           global $current_user;
           // change to a string if there is just one entry
           if(is_array($message) && count($message) == 1) {
               $message = array_shift($message);
           }
           // change to a human-readable array output if it's any other array
           if(is_array($message)) {
               $message = print_r($message, true);
           }
           list($msec, $sec) = explode(' ', microtime());
           $this->data[] = array(
               'level' => $level,
               'timestamp' => gmdate('Y-m-d\TH:i:s.'.round($msec * 1000).'\Z', $sec),
               'message' => $message,
               'user' => ($current_user->id ? $current_user->id : 0),
           );
           // bulk indexing every hundred logs
           if(count($this->data) >= 100) {
               $this->bulk();
           }
       }
   
       /**
        * @internal bulk indexing
        */
       private function bulk() {
           if(count($this->data) == 0) return false;
           $params = array();
           foreach($this->data as $data) {
               $params['body'][] = [
                   'index' => [
                       '_index' => $this->index,
                       '_type' => $data['level'],
                   ]
               ];
               $params['body'][] = [
                   'timestamp' => $data['timestamp'],
                   'message' => $data['message'],
                   'user' => $data['user'],
               ];
           }
           $responses = $this->client->bulk($params);
           $this->data = array();
       }
   
       /**
        * Destructor
        *
        * bulk indexing when script exited
        */
       public function __destruct() {
           $this->bulk();
           unset($this->client);
       }
   
   }

5. 至此ESLogger就已经配置完成了。

注解

因为ESLogger在SugarLogger之后加载，因此无需改动其它代码，ESLogger就已经作为默认日志处理类。

这个类会暂存100条日志记录后集中发送，或者在程序结束后集中发送。

相比文件日志的存储方式，ES在搜索、分类查找方面有着天生的优势，非常适合作为日志收集。配合Kibana使用起来非常方便。

kibana