logging

问题 In some other technologies we occasionally used a log level below DEBUG that I believe was called "verbose". I realize that the need for such a level is very subjective. But in my mind "just" having INFO and DEBUG isn't really enough. We had times where something very spammy (more spammy than debug) needed to be logged. In practice we'd produce builds without this turned on but in a few occasions we'd enable this level of logging after the product was all installed on some QA setup, while

问题 I noticed that elasticsearch consumed over 30GB of disk space over night. By comparison the total size of all the logs I wanted to index is only 5 GB...Well, not even that really, probably more like 2.5-3GB. Is there any reason for this and is there a way to re-configure it? I'm running the ELK stack. 回答1: There are a number of reasons why the data inside of Elasticsearch would be much larger than the source data. Generally speaking, Logstash and Lucene are both working to add structure to

问题 By default Tomcat appends the date to log files e.g., localhost.2010-12-22.log and same with the catalina log. I don't want the date in the log file and I can't seem to find how to remove it. The logging documentation doesn't say anything about the date pattern. Any ideas are greatly appreciated. http://tomcat.apache.org/tomcat-6.0-doc/logging.html 回答1: None of the other answers helped me much, though Thomas's was closest. The documentation I found was: http://tomcat.apache.org/tomcat-6.0-doc

问题 I'm building an app using the Ionic framework, which I've done in the browser until now. Because I now want to use the cordovaOauth plugin I need to use the emulator. The problem is that I can't see any console.log() in the emulator as I do in the browser, which makes it hard to debug. Does anybody know how in Ionic/Cordova I can make use of console logging in the emulator? All tips are welcome! 回答1: Just enable the console logs in the emulator. Here my example: > ionic emulate ios -

问题 How do you format the ruby logger? 回答1: logger = Logger.new('nice.log') logger.formatter = proc do |severity, datetime, progname, msg| "NICE: #{msg}\n" end logger.info("I like cheese.") # nice.log: NICE: I like cheese. 回答2: If you want to format only the time, you can easily do it with datetime_format and the standard format specification. For example, if you do: # Set the logger: logger = Logger.new($stdout) logger.level = Logger::DEBUG logger.datetime_format = "%Y-%m-%d %H:%M:%S" logger

问题 Suppose I want to include some calls to console.log for some legitimate production reason, say for something like a unit test harness. Obviously I would not want this to throw a premature exception if the browser doesn't have a console , or if no console is present. What's the best way to create a simple log function to log stuff to the console, or silently fail without error if no console is present? The accepted answer to the question linked above: var log = Function.prototype.bind.call

问题 Suppose I want to include some calls to console.log for some legitimate production reason, say for something like a unit test harness. Obviously I would not want this to throw a premature exception if the browser doesn't have a console , or if no console is present. What's the best way to create a simple log function to log stuff to the console, or silently fail without error if no console is present? The accepted answer to the question linked above: var log = Function.prototype.bind.call

问题 I have an Akka Actor that makes a call to MyObject.foo() . MyObject is not an Actor. How do I setup Logging in it? With an Actor it's simple, because I can just mixin ActorLogging. In MyObject, I don't have access to context.system. Do I create an akka.event.Logging with AkkaSystem() and then what for the LogSource implicit? 回答1: Actually I would redirect Akka logging to slf4j and use this API directly in all unrelated classes. First add this to your configuration: akka { event-handlers = [

问题 I have an Akka Actor that makes a call to MyObject.foo() . MyObject is not an Actor. How do I setup Logging in it? With an Actor it's simple, because I can just mixin ActorLogging. In MyObject, I don't have access to context.system. Do I create an akka.event.Logging with AkkaSystem() and then what for the LogSource implicit? 回答1: Actually I would redirect Akka logging to slf4j and use this API directly in all unrelated classes. First add this to your configuration: akka { event-handlers = [

问题 I've created a small C# winforms application, as an added feature I was considering adding some form of error logging into it. Anyone have any suggestions for good ways to go about this? This is a feature I've never looked into adding to previous projects, so I'm open to suggestions from Developers who have more experience. I was considering something along the lines of writing exceptions to a specified text file, or possibly a database table. This is an application that will be in use for a