thread-local

I am getting threadlocal memory leak errors in Tomcat and I am using ThreadPool, but have no implementation of ThreadLocal in my webapp. SEVERE: The web application [/myWebApp] created a ThreadLocal with key of type [org.a pache.http.impl.cookie.DateUtils$DateFormatHolder$1] (value [org.apache.http.imp l.cookie.DateUtils$DateFormatHolder$1@4c2849]) and a value of type [java.lang.re f.SoftReference] (value [java.lang.ref.SoftReference@1e67280]) but failed to rem ove it when the web application was stopped. Threads are going to be renewed ove r time to try and avoid a probable memory leak. What

I'd like for incoming Java servlet web requests to invoke RabbitMQ using the RPC approach as described here . However, I'm not sure how to properly reuse callback queues between requests, as per the RabbitMQ tutorial linked above creating a new callback queue per every request is inefficient (RabbitMQ may not cope even if using the Queue TTL feature ). There would generally be only 1-2 RPC calls per every servlet request, but obviously a lot of servlet requests per second. I don't think I can share the callback queues between threads, so I'd want at least one per each web worker thread. My

I have a requirement in my application that I think can be met by using thread local storage, but I'm wondering if it's one of those things that's best to avoid. I have read a few articles on the subject: http://www.dotnetcoders.com/web/Articles/ShowArticle.aspx?article=58 http://msdn.microsoft.com/en-us/library/system.threadstaticattribute(vs.80).aspx I know how to use it, I'm just wondering if I should use it. Any advice, gotchas to be aware of? [Edit] Here's the use case: I funnel all data access through a few methods that do a lot of logging about each query. One thing I log is a complete

Possible Duplicate: C++11 thread_local in gcc - alternatives Is there any way to fully emulate thread_local using GCC's __thread? I wanted to use the c++11 thread_local to create and use thread_local variable but as it is not yet supported by gcc, I am using gcc specific __thread . The way I declared the variable is myClass { public: static __thread int64_t m_minInt; }; __thread int64_t myClass::m_minInt = 100; When I compile it, I get an error like error: ‘myClass::minInt’ is thread-local and so cannot be dynamically initialized How to properly do it? PS: gcc version: 4.6.3 You need to use

I was going through the concept of ThreadLocals on the below blog : https://www.baeldung.com/java-threadlocal It says that "Do not use ThreadLocal with ExecutorService" It illustrates below example for using ThreadLocals. public class ThreadLocalWithUserContext implements Runnable { private static ThreadLocal<Context> userContext = new ThreadLocal<>(); private Integer userId; private UserRepository userRepository = new UserRepository(); @Override public void run() { String userName = userRepository.getUserNameForUserId(userId); userContext.set(new Context(userName)); System.out.println("thread

I am seeing some dead-instance weirdness running parallelized nested-loop web stress tests using Selenium WebDriver, simple example being, say, hit 300 unique pages with 100 impressions each. I'm "successfully" getting 4 - 8 WebDriver instances going using a ThreadLocal<FirefoxWebDriver> to isolate them per task thread, and MaxDegreeOfParallelism on a ParallelOptions instance to limit the threads. I'm partitioning and parallelizing the outer loop only (the collection of pages), and checking .IsValueCreated on the ThreadLocal<> container inside the beginning of each partition's "long running