我使用winston和winston-elasticsearch登录Elastic Search。我没有问题设置传输,一切正常工作。
无论如何,如果ES服务器无法访问,在停机期间发送的日志似乎永远丢失。
当Elastic-Search传输失败时,是否有办法告诉Winston登录文件?
答案 0 :(得分:2)
我也试图处理这种情况(即当一个传输无法记录消息时(在我的情况下是一个文件记录器,如果有人在配置中提到了错误的文件路径,它可能会失败))通过订阅“错误”记录器的事件。但我无法让它发挥作用。
我尝试的是实例化2个不同的Logger One和File Transport,另一个使用Mail Transport然后订阅了第一个记录器的“error”事件,并在错误事件中使用Logger with Mail传输发送邮件,但错误事件是如果我指定了错误的文件路径并且Node进程崩溃,则不会被触发。
var config = require('config');
var smtpConfig = config.get('serving.smtp');
var adClickLogConfig = config.get('adClick.logging');
var adClickMailConfig = config.get('adClick.mail');
var winston = require('winston');
require('winston-mail').Mail;
function AdClickLoggingService (staticFunctions){
this.staticFunctions = staticFunctions;
var fileName = adClickLogConfig.filePath + "/" + adClickLogConfig.fileName;
this.fileLogger = new (winston.Logger)({
transports: [
new (winston.transports.File)({
filename: fileName,
level: adClickLogConfig.level,
timestamp : adClickLogConfig.timeStamp,
maxsize : adClickLogConfig.maxSize,
maxFiles : adClickLogConfig.maxFiles,
json : adClickLogConfig.json
})
]
});
this.fileLogger.on('error', function (err) {
this.emailLogger.info(err);
});
this.fileLogger.on('logging', function (transport, level, msg, meta) {
console.log('Message logged' + msg);
// [msg] and [meta] have now been logged at [level] to [transport]
});
this.emailLogger = new (winston.Logger)({
transports: [
new (winston.transports.Mail)({
host: smtpConfig.host,
tls: smtpConfig.tls,
to : adClickMailConfig.toAddress.join(),
from : adClickMailConfig.fromAddress,
subject : adClickMailConfig.subject
})
]
});
this.fileLogger.on('error', function (err) {
console.log(err);
});
};
AdClickLoggingService.prototype = {
logAdClick:function(id, msg){
msg.adClickId = id;
msg = this.staticFunctions.convertToString(msg);
return this.fileLogger.info(msg);
}
};