monitoring

问题 As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance. Closed 6 years ago . I'm new to Node.JS, already Googled for aswers but there is a lot of ways of doing this. Do you have some sort of math to know when I

问题 As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance. Closed 6 years ago . I'm new to Node.JS, already Googled for aswers but there is a lot of ways of doing this. Do you have some sort of math to know when I

问题 I would like to set up a SQL Server 2008 Alert to notify me when any procedure executes for 1 second or longer (just an example). Any ideas? EDIT: Okay, it seems this is not possible. But, just to nudge you in another direction, I know that there are statistics tables in the master database which hold compilation counts, number of calls and other various statistics. Could I maybe periodically query them and then report on it, somehow? 回答1: no there are no notifications for this. you'll have

问题 Need to check for tool to monitor Kafka in production. Also tool does not need to have license or heavy hardware. In particular I need a tool to evaluate consumer offset on topic,health of topic. 回答1: Landoop Landoop enhances Kafka with User Interface, streaming SQL engine and cluster monitoring. It enables faster monitoring of Kafka data pipelines. They provide a free all-in-one docker (LENSES Box) which can serve a single broker for up to 25M messages. Note that this is recommended for

问题 I am trying to monitor the java heap size dynamically. Does anybody know how to get the maxmium memory used in the process of running a piece of codes? Does the Runtime.maxMemory() do the trick? Thanks 回答1: maxMemory() returns the maximum amount of memory that java will use. So That will not get you what you want. totalMemory() is what you are looking for though. See The docs 回答2: There are a large number of profiler tools available that should help you with this. A popular commercial tool is

问题 Folks, I have a need to watch a log file for changes. After looking through stackoverflow questions, I see people recommending 'watchdog'. So i'm trying to test, and am not sure where to add the code for when files change: #!/usr/bin/python import time from watchdog.observers import Observer from watchdog.events import LoggingEventHandler if __name__ == "__main__": event_handler = LoggingEventHandler() observer = Observer() observer.schedule(event_handler, path='.', recursive=False) observer

问题 Is there a way to find out when in a LAN anyone plugs in a pendrive to the USB port? Programatically (in C# preferably) or through some tool. Basically I'd imagine a client application sits on each terminal and monitors the USB ports and sends the information to the server. a.) Can I get the details of the file(s) being copied? b.) Is there a way to do this without a client application? EDIT I dont want to disable the USB port entirely. its to be on a need to have basis. Basically just want

问题 I have used watch and tail together like this: watch -n 5 tail -n 15 mylogfile.txt Also I have used tail and ccze for colorizing log file as below: tail -f -n 50 mylogfile.txt | ccze But I dont know how should I use all of these three together in a single command. Does any one have any idea? 回答1: Recent versions of watch has -c | --color option, so perhaps this will work for you: watch -n 5 -c 'tail -f -n 50 mylogfile.txt | ccze' 来源： https://stackoverflow.com/questions/35670204/using-watch

问题 We have a Java application (ESB) that uses quartz 2.2.1 and we use it to schedule hundreds of user jobs. I want to build monitoring page (or scheduler administration page) in my application for our users so that they can see if quartz scheduler is running fine or there is any issue in this component. Does quartz provides any monitoring API for this purpose? Can anyone please tell us what all data points should we show in this monitoring (or administration) page based on your experience? Some

问题 I have a few RDS servers I'd like to monitor for insufficient disk space. For simplicity sake, I prefer using my current monitoring system rather than an AWS solution like cloudwatch. I've been reading the documentation and the nearest solution was describe-db-instances, which gives the allocated storage, but not the space left / amount of storage used: "SecondaryAvailabilityZone": "us-east-1a", "ReadReplicaDBInstanceIdentifiers": [], "AllocatedStorage": 100, ... How do I query a specific RDS