logging

问题 In my node.js application whenever I get request I'd like to "stamp" it with some unique ID and be able to track all the activities (log statements) related to this request by this ID. So when request comes in and I pass its handing to lower application layers (services, database calls etc) I want to be able to collect all logs matching given request ID to rebuild its journey through the app. So having this picture, I use request-local module now, but it does some heavy magic that has just

问题 I want to log the exceptions occurred during execution of my app. Before this I handled it with message box. I am new to VB 6. Please provide some sample code to create log file and to save exception messages. Thanks.. 回答1: You need error handlers, using On Error Goto , so that you can execute your own code when an error occurs. (BTW in VB6 they are called errors not exceptions .) The free tool MZTools is excellent - it can automatically insert the On Error Goto and an error handler which

问题 I am using winston for my NodeJS apps, to have a structured logging format (JSON) that later I will process and send to Logstash via Filebeat. As suggested by PM2 and 12factor.net I'm logging using winston.transports.Console transport and letting PM2 to handle the stdout and stderr in my ecosystem.json . In my logger.js module I have the following: "use strict"; const winston = require("winston"); // Remove logging on console winston.remove(winston.transports.Console); // env const env =

问题 I have to put all the log data (i.e., debug, info, error) into mysql database instead of to file/console. I read the spring boot documentation but I didn't see any configuration related to database for logging. https://docs.spring.io/spring-boot/docs/current/reference/html/howto-logging.html Also tried the following link but its also not working. https://www.tutorialspoint.com/log4j/log4j_logging_database.htm Can anyone help me to do this. Thanks. 回答1: I read the spring boot documentation but

问题 I've been studying the W3C format log files in IIS 7.5 for a while on a server with some performance issues, and it seems to me that, contrary to MSDN documentation, the "time" field is not "the time, in Coordinated Universal Time (UTC), at which the request occurred" ... but rather it is the time at which the response was finished being sent. I say this because when I track the sequence of page request from users in a somewhat controlled environment, they would have to be going back in time

问题 I've been studying the W3C format log files in IIS 7.5 for a while on a server with some performance issues, and it seems to me that, contrary to MSDN documentation, the "time" field is not "the time, in Coordinated Universal Time (UTC), at which the request occurred" ... but rather it is the time at which the response was finished being sent. I say this because when I track the sequence of page request from users in a somewhat controlled environment, they would have to be going back in time

问题 In Linux, I know how to write a simply message to the /var/log/messages file, in a simple shell script I created: #!/bin/bash logger "have fun!" I want to stop throwing messages into the default /var/log/messages file, and create my own. I tried this: #!/bin/bash logger "have more fun" > /var/log/mycustomlog It still logs to /var/log/messages . It did create the /var/log/mycustomlog , but it's empty. Anyone see what I'm missing? 回答1: logger logs to syslog facilities. If you want the message

问题 i use the same class LoggingAspect as in this example tutorial https://www.javaguides.net/2019/05/spring-boot-spring-aop-logging-example-tutorial.html, but when i call a controller methode i get only those messages on console 11-05-2020 13:30:27.742 [http-nio-8080-exec-7] INFO o.a.c.c.C.[.[localhost].[/appged].log - Initializing Spring DispatcherServlet 'dispatcherServlet' 11-05-2020 13:30:27.742 [http-nio-8080-exec-7] INFO o.s.web.servlet.DispatcherServlet.initServletBean - Initializing

问题 I use Jackson to check and databind input JSON for a REST API, and I would like to log the error when the input doesn’t match a @Valid constraint. However, the exceptions are throwned as a Response by the API but do not appear in Quarkus’ logs. How do I log Jackson’s exceptions ? 回答1: One has to create a handler for the Jackson exceptions, e.g. using ExceptionMapper. The following example catches all exceptions of type JsonProcessingException (finer tuning is obviously possible), logs them as

问题 I use Jackson to check and databind input JSON for a REST API, and I would like to log the error when the input doesn’t match a @Valid constraint. However, the exceptions are throwned as a Response by the API but do not appear in Quarkus’ logs. How do I log Jackson’s exceptions ? 回答1: One has to create a handler for the Jackson exceptions, e.g. using ExceptionMapper. The following example catches all exceptions of type JsonProcessingException (finer tuning is obviously possible), logs them as