We have a Java program run as root on Unix, that therefore can read for example the content of the folders /home/user1 and /home/user2. However, if the Unix user "user1" is ... |
I have an interesting problem and would appreciate your thoughts for the best solution.
I need to parse a set of logs. The logs are produced by a multi-threaded program and a ... |
I want to have a diagnostic log that is produced by several tasks managing data. These tasks may be in multiple threads. Each task needs to write an element (possibly with ... |
In a logging system, every log output is done by a helper class with a method such as this one
public void debug(String message) {
Logger logger = ...
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We have a system that uses threading so that it can concurrently handle different bits of functionality in parallel. We would like to find a way to tie all log ... |
What's the best way and best tool for logging in multi-threaded environment, so that each thread has it's own logger instance and separate file. is this even possible?
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There are huge numbers of threads running in parallel continuously (let's assume this continuous part)). All the threads want to log some application data, basically a set of values.
- What would be ...
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I have an ArrayList called fileList. It contains a list of file names. Through the for loop, I am creating the thread for every file name and monitoring the file by ... |
You can shorten the name of the logger using %logger{x} syntax where x controls shortening procedure. Is there any way to shorten the name of the thread the same way?
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I'm running a java application with the following settings:
-Xms1G -Xmx2G -Xdebug -Xloggc:/usr/local/resin/log/gc.log -XX:+PrintGCDetails -XX:PermSize=150M -XX:+PrintGCTimeStamps -XX:+PrintTenuringDistribution -XX:+PrintGCApplicationStoppedTime -XX:+PrintGCApplicationConcurrentTime -XX:+PrintHeapAtGC -XX:+UseConcMarkSweepGC
I thought turning on -XX:+PrintGCApplicationStoppedTime switch would output how ... |
Is it possible to print thread name in the log statements generated by java.util.logging.Logger?
One alternative is to do something like the following:
logger.info(thread.getName() +" some useful info");
but it's repetitive and the ... |
Hi everyone, this is my first post to JavaRanch! I have been struggling with threading and concurrency and wondered if I could get some advice from you seasoned Java programmers. I have a SimpleLog class that is used to log information to a Notes document. I want a thread to save the Notes document every 5 seconds or so while other ... |
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Hi everyone Is it possible to turn on the logging in this framework to show which thread added logging entry? I believe log4j shows thread number in the log file. What about java.util.logging? Changing property text file to do that would be nice... If not possible is there alternative to do it without changing code (by using commons-logging for example) Cheers ... |
It does have timelines of event. Following is a piece from GC log: |
You will have to repeatedly open the file just long enough to read from it, then close it as soon as possible - you don't want your reads interfering with possible write. You will have to monitor the folder to look for roll-over files. When you read from a file you won't know if you reached the end of the file ... |
Java Code: public class server_log extends Thread { static final String newline = System.getProperty("line.seperator"); final private String LOG_FILENAME = "searchserver.log"; private BlockingQueue log_queue = new ArrayBlockingQueue(50); private PrintWriter log_file = null; public server_log() throws IOException { log_file = new PrintWriter(new FileWriter(LOG_FILENAME, true), true); start(); } public void add_log(String log_data) { try { log_queue.put(log_data); } catch (InterruptedException e) { System.out.format("Problem adding to ... |
I have an application where multiple threads may be running at the same time. Different classes need to update the same error/progress log file. Should I create another class with a static method that takes strings as parameter? And then this static method would write the strings to the log file? What would happen if two threads access the static method ... |
Hi, Is there any way to logging on Thread-Id basis? my requirement is like this: I have few thread e.g, MainThread, ConnectionPollingThread, DataPollingThread, WorkerThread-Type1, WorkerThread-Type2 etc. there is a pool of Objects of few classes from which DataPollingThread will pick up some objects and give to appropriate WorkerThreads. now, i want to keep logging level DEBUG for WorkerThread-Type1 and ERROR for ... |
I am using a laptop to run my application on. It uses windows XP and it is the only application running on that machine. I use TCP and serial port to communicate to other devices. My application is supposed to use up to 300M of memory but apparently it using much more than that. The laptop physical memory size is 512M. ... |
hi, i'm working on a java web application. To log i'm using the java.util.Logging class. I have a server class that listen with a serversocket and start a threads for each client that connect. I have to log from the client threads class. I created another class with static method log(). From the client threads class i call that log() method. ... |