freeze | 易学教程

JVM Freeze under high load in longevity tests

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问题 Running with JVM: java version "1.7.0_79" Java(TM) SE Runtime Environment (build 1.7.0_79-b15) Java HotSpot(TM) 64-Bit Server VM (build 24.79-b02, mixed mode) OS: CentOS release 6.4 (Final) Jvm Options: -Xmx4g -Xms4g -XX:MaxPermSize=4g -XX:+HeapDumpOnOutOfMemoryError -XX:+PrintClassHistogram -XX:+CMSClassUnloadingEnabled -verbose:gc -XX:+UseG1GC -XX:MaxGCPauseMillis=200 -XX:+DisableExplicitGC Running in an OSGI environment, Aerospike DB, NETTY (NIO) for networking. Ran a weekend longevity

JVM Freeze under high load in longevity tests

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JVM Freeze under high load in longevity tests

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Python multiprocessing blocks indefinately in waiter.acquire()

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问题 Can someone explain why this code blocks and cannot complete? I've followed a couple of examples for multiprocessing and I've writting some very similar code that does not get blocked. But, obviously, I cannot see what is the difference between that working code and that below. Everything sets up fine, I think. It gets all the way to .get(), but none of the processes ever finish. The problem is that python3 blocks indefinitely in waiter.acquire(), which you can tell by interrupting it and

Java Swing - GUI freezes when completing calculations after clicking a button

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问题 I have created a scientific calculator program. What my program does is take "label" which is the string inputted by the user using buttons and evaluate the expression. What my program does is, as soon as the equal button (button_eq) is clicked, it calls the splitLabel method which splits the label into an Arraylist of numbers and operators. It then calls brackets which searches for brackets within the ArrayList and completes sub calculations by calling the method calculate. However, before

conda install -c conda-forge python-pdal Solving environment: | hangs when running windows 10

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问题 Trying to install PDAL with conda and it just hangs at the "Solving Environment:" I have not had much luck with PDAL. I am using windows 10 and this is a fresh install of Anaconda / conda. I let it run for about an hour just in case. I was going to test some other "popular" package that may work to troubleshoot the issue. 回答1: Try to use below command to install pdal: conda install -c conda-forge pdal Please refer to: https://anaconda.org/conda-forge/pdal 来源： https://stackoverflow.com

C# process hanging due to StandardOutput.ReadToEnd() and StandardError.ReadToEnd() [duplicate]

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问题 This question already has answers here : ProcessStartInfo hanging on “WaitForExit”? Why? (22 answers) Hanging process when run with .NET Process.Start — what's wrong? (5 answers) Closed 2 years ago . For processes with a lot of output or error, trying to redirect standard output and error with a simple string output = process.StandardOutput.ReadToEnd(); string err = process.StandardError.ReadToEnd(); process.WaitForExit(); will cause the program to hang, and never actually finish. 回答1: As it

Can a java project with a runnable that runs at a fixed rate stop after a while? Mine keeps freezing after about 40 hours

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问题 After learning java on my own, i began a project for getting data from a website through api calls for a game called torn. There were a few little details i fixed thanks to some help, but the main issue i had is still not solved. after a day and a half of running, the program just freezes. i couldn't find anything about it so far. I took heap dumps for a while and i noticed some things. hope someone can help. During the first day or so, all is well (screenshot of heap dump after 3 hours and

Python requirements.txt

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Python requirements.txt 1. Requirements Files Requirements Files are files containing a list of items to be installed using pip install like so: Requirements Files 是包含要使用 pip install 安装的项目列表文件，如下所示： pip install -r requirements.txt pip install -i https://pypi.doubanio.com/simple/ -r requirements.txt pip3 install -r requirements.txt pip3 install -i https://pypi.doubanio.com/simple/ -r requirements.txt Logically, a Requirements File is just a list of pip install arguments placed in a file. Note that you should not rely on the items in the file being installed by pip in any particular order. 从逻辑上讲

C# Program freezes in for loop

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问题 I have this code here that starts a process wait 8 seconds and then kill it and again. for (int i = 0; i < 20; i++) { Process pro = new Process(); pro.StartInfo.FileName = @"C:\Program Files (x86)\Mozilla Firefox\firefox.exe"; pro.StartInfo.WindowStyle = ProcessWindowStyle.Minimized; pro.Start(); Thread.Sleep(8000); try { pro.Kill(); Thread.Sleep(1000); } catch { return; } } As i run the application either on debug mode or direct from the .exe , it successfully starts and kills the process