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  • Bundler doesn't want to install hpricot on Windows XP with Ruby 1.8.7

    - by Nick Gorbikoff
    Hello I develop on a Windows machine but deploy to Debian. Trying to use hpricot with Rails 3 app. I can get the gem to install using : gem install hpricot --platform=mswin32 But when I do this in the bundle file - it keeps throwing an error (I think it's trying to install the wrong version of hpricot (not windows specific) group :production do gem "hpricot", "0.8.3" end group :development, :test do gem "hpricot", "0.8.3", :platforms => [:mswin, :mingw] end This is from another question here on stackoverflow - but it's not working for me. Any ideas? P.S.: Windows XP sp3 with Ruby 1.8.7 with Rails 3.0.3 with bundler 1.0.7 EDIT Forgot to paste my error: bundle install Fetching source index for http://rubygems.org/ which: no sudo in (.;C:\Program Files\ImageMagick-6.6.5-Q16;C:\ruby\Ruby187\bin;C:\Program Files\ActiveState Komodo Edit 6\;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\Program Files\e\cmd;C:\Program Files\MySQL\MySQL Server 5.1\bin;C:\WINDOWS\system32\WindowsPowerShell\v1.0;c:\tools;C:\gnuwin32\bin;C:\tools\wkhtmltopdf;C:\Python31;C:\Program Files\TortoiseHg\;C:\Program Files\TortoiseGit\bin; c:\program files\videolan\vlc;C:\Program Files\SMPlayer\mplayer;C:\Program Files\Git\cmd;C:\Program Files\QuickTime\QTSystem\;C:\Program Files\Calibre2\;c:\ruby\jruby-1.5.5\bin;C:\Program Files\Common Files\Shoes\0.r1514\..) Using rake (0.8.7) Using abstract (1.0.0) Using activesupport (3.0.3) Using builder (2.1.2) Using i18n (0.4.2) Using activemodel (3.0.3) Using erubis (2.6.6) Using rack (1.2.1) Using rack-mount (0.6.13) Using rack-test (0.5.6) Using tzinfo (0.3.23) Using actionpack (3.0.3) Using mime-types (1.16) Using polyglot (0.3.1) Using treetop (1.4.9) Using mail (2.2.10) Using actionmailer (3.0.3) Using arel (2.0.4) Using activerecord (3.0.3) Using activeresource (3.0.3) Using bcrypt-ruby (2.1.4) Using bundler (1.0.7) Using cancan (1.5.0) Using haml (3.0.24) Using compass (0.10.6) Using warden (1.0.3) Using devise (1.1.5) Installing hpricot (0.8.3) Temporarily enhancing PATH to include DevKit... with native extensions C:/ruby/Ruby187/lib/ruby/site_ruby/1.8/rubygems/installer.rb:483:in `build_extensions': ERROR: Failed to build gem native extension. (Gem::Installer::ExtensionBuildError) C:/ruby/Ruby187/bin/ruby.exe extconf.rb checking for stdio.h... no *** extconf.rb failed *** Could not create Makefile due to some reason, probably lack of necessary libraries and/or headers. Check the mkmf.log file for more details. You may need configuration options. Provided configuration options: --with-opt-dir --without-opt-dir --with-opt-include --without-opt-include=${opt-dir}/include --with-opt-lib --without-opt-lib=${opt-dir}/lib --with-make-prog --without-make-prog --srcdir=. --curdir --ruby=C:/ruby/Ruby187/bin/ruby Gem files will remain installed in C:/ruby/Ruby187/lib/ruby/gems/1.8/gems/hpricot-0.8.3 for inspection. Results logged to C:/ruby/Ruby187/lib/ruby/gems/1.8/gems/hpricot-0.8.3/ext/fast_xs/gem_make.out from C:/ruby/Ruby187/lib/ruby/site_ruby/1.8/rubygems/installer.rb:446:in `each' from C:/ruby/Ruby187/lib/ruby/site_ruby/1.8/rubygems/installer.rb:446:in `build_extensions' from C:/ruby/Ruby187/lib/ruby/site_ruby/1.8/rubygems/installer.rb:198:in `install' from C:/ruby/Ruby187/lib/ruby/gems/1.8/gems/bundler-1.0.7/lib/bundler/source.rb:95:in `install' from C:/ruby/Ruby187/lib/ruby/gems/1.8/gems/bundler-1.0.7/lib/bundler/installer.rb:55:in `run' from C:/ruby/Ruby187/lib/ruby/gems/1.8/gems/bundler-1.0.7/lib/bundler/spec_set.rb:12:in `each' from C:/ruby/Ruby187/lib/ruby/gems/1.8/gems/bundler-1.0.7/lib/bundler/spec_set.rb:12:in `each' from C:/ruby/Ruby187/lib/ruby/gems/1.8/gems/bundler-1.0.7/lib/bundler/installer.rb:44:in `run' from C:/ruby/Ruby187/lib/ruby/gems/1.8/gems/bundler-1.0.7/lib/bundler/installer.rb:8:in `install' from C:/ruby/Ruby187/lib/ruby/gems/1.8/gems/bundler-1.0.7/lib/bundler/cli.rb:225:in `install' from C:/ruby/Ruby187/lib/ruby/gems/1.8/gems/bundler-1.0.7/lib/bundler/vendor/thor/task.rb:22:in `send' from C:/ruby/Ruby187/lib/ruby/gems/1.8/gems/bundler-1.0.7/lib/bundler/vendor/thor/task.rb:22:in `run' from C:/ruby/Ruby187/lib/ruby/gems/1.8/gems/bundler-1.0.7/lib/bundler/vendor/thor/invocation.rb:118:in `invoke_task' from C:/ruby/Ruby187/lib/ruby/gems/1.8/gems/bundler-1.0.7/lib/bundler/vendor/thor.rb:246:in `dispatch' from C:/ruby/Ruby187/lib/ruby/gems/1.8/gems/bundler-1.0.7/lib/bundler/vendor/thor/base.rb:389:in `start' from C:/ruby/Ruby187/lib/ruby/gems/1.8/gems/bundler-1.0.7/bin/bundle:13 from C:/ruby/Ruby187/bin/bundle:19:in `load' from C:/ruby/Ruby187/bin/bundle:19

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  • Synchronizing issue: I want the main thread to be run before another thread but it sometimes doesn´t

    - by Rox
    I have done my own small concurrency framework (just for learning purposes) inspired by the java.util.concurrency package. This is about the Callable/Future mechanism. My code below is the whole one and is compilable and very easy to understand. My problem is that sometimes I run into a deadlock where the first thread (the main thread) awaits for a signal from the other thread. But then the other thread has already notified the main thread before the main thread went into waiting state, so the main thread cannot wake up. FutureTask.get() should always be run before FutureTask.run() but sometimes the run() method (which is called by new thread) runs before the get() method (which is called by main thread). I don´t know how I can prevent that. This is a pseudo code of how I want the two threads to be run. //From main thread: Executor.submit().get() (in get() the main thread waits for new thread to notify) ->submit() calls Executor.execute(FutureTask object) -> execute() starts new thread -> new thread shall notify `main thread` I cannot understand how the new thread can start up and run faster than the main thread that actually starts the new thread. Main.java: public class Main { public static void main(String[] args) { new ExecutorServiceExample(); } public Main() { ThreadExecutor executor = new ThreadExecutor(); Integer i = executor.submit(new Callable<Integer>() { @Override public Integer call() { return 10; } }).get(); System.err.println("Value: "+i); } } ThreadExecutor.java: public class ThreadExecutor { public ThreadExecutor() {} protected <V> RunnableFuture<V> newTaskFor(Callable c) { return new FutureTask<V>(c); } public <V> Future<V> submit(Callable<V> task) { if (task == null) throw new NullPointerException(); RunnableFuture<V> ftask = newTaskFor(task); execute(ftask); return ftask; } public void execute(Runnable r) { new Thread(r).start(); } } FutureTask.java: import java.util.concurrent.locks.Condition; import java.util.concurrent.locks.ReentrantLock; import java.util.logging.Level; import java.util.logging.Logger; public class FutureTask<V> implements RunnableFuture<V> { private Callable<V> callable; private volatile V result; private ReentrantLock lock = new ReentrantLock(); private Condition condition = lock.newCondition(); public FutureTask(Callable callable) { if (callable == null) throw new NullPointerException(); this.callable = callable; } @Override public void run() { acquireLock(); System.err.println("RUN"+Thread.currentThread().getName()); V v = this.callable.call(); set(v); condition.signal(); releaseLock(); } @Override public V get() { acquireLock(); System.err.println("GET "+Thread.currentThread().getName()); try { condition.await(); } catch (InterruptedException ex) { Logger.getLogger(FutureTask.class.getName()).log(Level.SEVERE, null, ex); } releaseLock(); return this.result; } public void set(V v) { this.result = v; } private void acquireLock() { lock.lock(); } private void releaseLock() { lock.unlock(); } } And the interfaces: public interface RunnableFuture<V> extends Runnable, Future<V> { @Override void run(); } public interface Future<V> { V get(); } public interface Callable<V> { V call(); }

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  • How to design a data model that deals with (real) contracts?

    - by Geoffrey
    I was looking for some advice on designing a data model for contract administration. The general life cycle of a contract is thus: Contract is created and in a "draft" state. It is viewable internally and changes may be made. Contract goes out to vendor, status is set to "pending" Contract is rejected by vendor. At this state, nothing can be done to the contract. No statuses may be added to the collection. Contract is accepted by vendor. At this state, nothing can be done to the contract. No statuses may be added to the collection. I obviously want to avoid a situation where the contract is accepted and, say, the amount is changed. Here are my classes: [EnforceNoChangesAfterDraftState] public class VendorContract { public virtual Vendor Vendor { get; set; } public virtual decimal Amount { get; set; } public virtual VendorContact VendorContact { get; set; } public virtual string CreatedBy { get; set; } public virtual DateTime CreatedOn { get; set; } public virtual FileStore Contract { get; set; } public virtual IList<VendorContractStatus> ContractStatus { get; set; } } [EnforceCorrectWorkflow] public class VendorContractStatus { public virtual VendorContract VendorContract { get; set; } public virtual FileStore ExecutedDocument { get; set; } public virtual string Status { get; set; } public virtual string Reason { get; set; } public virtual string CreatedBy { get; set; } public virtual DateTime CreatedOn { get; set; } } I've omitted the filestore class, which is basically a key/value lookup to find the document based on its guid. The VendorContractStatus is mapped as a many-to-one in Nhibernate. I then use a custom validator as described here. If anything but draft is returned in the VendorContractStatus collection, no changes are allowed. Furthermore the VendorContractStatus must follow the correct workflow (you can add a rejected after a pending, but you can't add anything else to the collection if a reject or accepted exists, etc.). All sounds alright? Well a colleague has argued that we should simply add an "IsDraft" bool property to VendorContract and not accept updates if IsDraft is false. Then we should setup a method inside of VendorContractStatus for updating the status, if something gets added after a draft, it sets the IsDraft property of VendorContract to false. I do not like this as it feels like I'm dirtying up the POCOs and adding logic that should persist in the validation area, that no rules should really exist in these classes and they shouldn't be aware of their states. Any thoughts on this and what is the better practice from a DDD perspective? From my view, if in the future we want more complex rules, my way will be more maintainable over the long run. Say we have contracts over a certain amount to be approved by a manager. I would think it would be better to have a one-to-one mapping with a VendorContractApproval class, rather than adding IsApproved properties, but that's just speculation. This might be splitting hairs, but this is the first real gritty enterprise software project we've done. Any advice would be appreciated!

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  • Does my GetEnumerator cause a deadlock?

    - by Scott Chamberlain
    I am starting to write my first parallel applications. This partitioner will enumerate over a IDataReader pulling chunkSize records at a time from the data-source. TLDR; version private object _Lock = new object(); public IEnumerator GetEnumerator() { var infoSource = myInforSource.GetEnumerator(); //Will this cause a deadlock if two threads lock (_Lock) //use the enumator at the same time? { while (infoSource.MoveNext()) { yield return infoSource.Current; } } } full code protected class DataSourcePartitioner<object[]> : System.Collections.Concurrent.Partitioner<object[]> { private readonly System.Data.IDataReader _Input; private readonly int _ChunkSize; public DataSourcePartitioner(System.Data.IDataReader input, int chunkSize = 10000) : base() { if (chunkSize < 1) throw new ArgumentOutOfRangeException("chunkSize"); _Input = input; _ChunkSize = chunkSize; } public override bool SupportsDynamicPartitions { get { return true; } } public override IList<IEnumerator<object[]>> GetPartitions(int partitionCount) { var dynamicPartitions = GetDynamicPartitions(); var partitions = new IEnumerator<object[]>[partitionCount]; for (int i = 0; i < partitionCount; i++) { partitions[i] = dynamicPartitions.GetEnumerator(); } return partitions; } public override IEnumerable<object[]> GetDynamicPartitions() { return new ListDynamicPartitions(_Input, _ChunkSize); } private class ListDynamicPartitions : IEnumerable<object[]> { private System.Data.IDataReader _Input; int _ChunkSize; private object _ChunkLock = new object(); public ListDynamicPartitions(System.Data.IDataReader input, int chunkSize) { _Input = input; _ChunkSize = chunkSize; } public IEnumerator<object[]> GetEnumerator() { while (true) { List<object[]> chunk = new List<object[]>(_ChunkSize); lock(_Input) { for (int i = 0; i < _ChunkSize; ++i) { if (!_Input.Read()) break; var values = new object[_Input.FieldCount]; _Input.GetValues(values); chunk.Add(values); } if (chunk.Count == 0) yield break; } var chunkEnumerator = chunk.GetEnumerator(); lock(_ChunkLock) //Will this cause a deadlock? { while (chunkEnumerator.MoveNext()) { yield return chunkEnumerator.Current; } } } } IEnumerator IEnumerable.GetEnumerator() { return ((IEnumerable<object[]>)this).GetEnumerator(); } } } I wanted IEnumerable object it passed back to be thread safe (the MSDN example was so I am assuming PLINQ and TPL could need it) will the lock on _ChunkLock near the bottom help provide thread safety or will it cause a deadlock? From the documentation I could not tell if the lock would be released on the yeld return. Also if there is built in functionality to .net that will do what I am trying to do I would much rather use that. And if you find any other problems with the code I would appreciate it.

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  • Query on simple C++ threadpool implementation

    - by ticketman
    Stackoverflow has been a tremendous help to me and I'd to give something back to the community. I have been implementing a simple threadpool using the tinythread C++ portable thread library, using what I have learnt from Stackoverflow. I am new to thread programming, so not that comfortable with mutexes, etc. I have a question best asked after presenting the code (which runs quite well under Linux): // ThreadPool.h class ThreadPool { public: ThreadPool(); ~ThreadPool(); // Creates a pool of threads and gets them ready to be used void CreateThreads(int numOfThreads); // Assigns a job to a thread in the pool, but doesn't start the job // Each SubmitJob call will use up one thread of the pool. // This operation can only be undone by calling StartJobs and // then waiting for the jobs to complete. On completion, // new jobs may be submitted. void SubmitJob( void (*workFunc)(void *), void *workData ); // Begins execution of all the jobs in the pool. void StartJobs(); // Waits until all jobs have completed. // The wait will block the caller. // On completion, new jobs may be submitted. void WaitForJobsToComplete(); private: enum typeOfWorkEnum { e_work, e_quit }; class ThreadData { public: bool ready; // thread has been created and is ready for work bool haveWorkToDo; typeOfWorkEnum typeOfWork; // Pointer to the work function each thread has to call. void (*workFunc)(void *); // Pointer to work data void *workData; ThreadData() : ready(false), haveWorkToDo(false) { }; }; struct ThreadArgStruct { ThreadPool *threadPoolInstance; int threadId; }; // Data for each thread ThreadData *m_ThreadData; ThreadPool(ThreadPool const&); // copy ctor hidden ThreadPool& operator=(ThreadPool const&); // assign op. hidden // Static function that provides the function pointer that a thread can call // By including the ThreadPool instance in the void * parameter, // we can use it to access other data and methods in the ThreadPool instance. static void ThreadFuncWrapper(void *arg) { ThreadArgStruct *threadArg = static_cast<ThreadArgStruct *>(arg); threadArg->threadPoolInstance->ThreadFunc(threadArg->threadId); } // The function each thread calls void ThreadFunc( int threadId ); // Called by the thread pool destructor void DestroyThreadPool(); // Total number of threads available // (fixed on creation of thread pool) int m_numOfThreads; int m_NumOfThreadsDoingWork; int m_NumOfThreadsGivenJobs; // List of threads std::vector<tthread::thread *> m_ThreadList; // Condition variable to signal each thread has been created and executing tthread::mutex m_ThreadReady_mutex; tthread::condition_variable m_ThreadReady_condvar; // Condition variable to signal each thread to start work tthread::mutex m_WorkToDo_mutex; tthread::condition_variable m_WorkToDo_condvar; // Condition variable to signal the main thread that // all threads in the pool have completed their work tthread::mutex m_WorkCompleted_mutex; tthread::condition_variable m_WorkCompleted_condvar; }; cpp file: // // ThreadPool.cpp // #include "ThreadPool.h" // This is the thread function for each thread. // All threads remain in this function until // they are asked to quit, which only happens // when terminating the thread pool. void ThreadPool::ThreadFunc( int threadId ) { ThreadData *myThreadData = &m_ThreadData[threadId]; std::cout << "Hello world: Thread " << threadId << std::endl; // Signal that this thread is ready m_ThreadReady_mutex.lock(); myThreadData->ready = true; m_ThreadReady_condvar.notify_one(); // notify the main thread m_ThreadReady_mutex.unlock(); while(true) { //tthread::lock_guard<tthread::mutex> guard(m); m_WorkToDo_mutex.lock(); while(!myThreadData->haveWorkToDo) // check for work to do m_WorkToDo_condvar.wait(m_WorkToDo_mutex); // if no work, wait here myThreadData->haveWorkToDo = false; // need to do this before unlocking the mutex m_WorkToDo_mutex.unlock(); // Do the work switch(myThreadData->typeOfWork) { case e_work: std::cout << "Thread " << threadId << ": Woken with work to do\n"; // Do work myThreadData->workFunc(myThreadData->workData); std::cout << "#Thread " << threadId << ": Work is completed\n"; break; case e_quit: std::cout << "Thread " << threadId << ": Asked to quit\n"; return; // ends the thread } // Now to signal the main thread that my work is completed m_WorkCompleted_mutex.lock(); m_NumOfThreadsDoingWork--; // Unsure if this 'if' would make the program more efficient // if(NumOfThreadsDoingWork == 0) m_WorkCompleted_condvar.notify_one(); // notify the main thread m_WorkCompleted_mutex.unlock(); } } ThreadPool::ThreadPool() { m_numOfThreads = 0; m_NumOfThreadsDoingWork = 0; m_NumOfThreadsGivenJobs = 0; } ThreadPool::~ThreadPool() { if(m_numOfThreads) { DestroyThreadPool(); delete [] m_ThreadData; } } void ThreadPool::CreateThreads(int numOfThreads) { // Check a thread pool has already been created if(m_numOfThreads > 0) return; m_NumOfThreadsGivenJobs = 0; m_NumOfThreadsDoingWork = 0; m_numOfThreads = numOfThreads; m_ThreadData = new ThreadData[m_numOfThreads]; ThreadArgStruct threadArg; for(int i=0; i<m_numOfThreads; ++i) { threadArg.threadId = i; threadArg.threadPoolInstance = this; // Creates the thread and save in a list so we can destroy it later m_ThreadList.push_back( new tthread::thread( ThreadFuncWrapper, (void *)&threadArg ) ); // It takes a little time for a thread to get established. // Best wait until it gets established before creating the next thread. m_ThreadReady_mutex.lock(); while(!m_ThreadData[i].ready) // Check if thread is ready m_ThreadReady_condvar.wait(m_ThreadReady_mutex); // If not, wait here m_ThreadReady_mutex.unlock(); } } // Adds a job to the batch, but doesn't start the job void ThreadPool::SubmitJob(void (*workFunc)(void *), void *workData) { // Check that the thread pool has been created if(!m_numOfThreads) return; if(m_NumOfThreadsGivenJobs >= m_numOfThreads) return; m_ThreadData[m_NumOfThreadsGivenJobs].workFunc = workFunc; m_ThreadData[m_NumOfThreadsGivenJobs].workData = workData; std::cout << "Submitted job " << m_NumOfThreadsGivenJobs << std::endl; m_NumOfThreadsGivenJobs++; } void ThreadPool::StartJobs() { // Check that the thread pool has been created // and some jobs have been assigned if(!m_numOfThreads || !m_NumOfThreadsGivenJobs) return; // Set 'haveworkToDo' flag for all threads m_WorkToDo_mutex.lock(); for(int i=0; i<m_NumOfThreadsGivenJobs; ++i) m_ThreadData[i].haveWorkToDo = true; m_NumOfThreadsDoingWork = m_NumOfThreadsGivenJobs; // Reset this counter so we can resubmit jobs later m_NumOfThreadsGivenJobs = 0; // Notify all threads they have work to do m_WorkToDo_condvar.notify_all(); m_WorkToDo_mutex.unlock(); } void ThreadPool::WaitForJobsToComplete() { // Check that a thread pool has been created if(!m_numOfThreads) return; m_WorkCompleted_mutex.lock(); while(m_NumOfThreadsDoingWork > 0) // Check if all threads have completed their work m_WorkCompleted_condvar.wait(m_WorkCompleted_mutex); // If not, wait here m_WorkCompleted_mutex.unlock(); } void ThreadPool::DestroyThreadPool() { std::cout << "Ask threads to quit\n"; m_WorkToDo_mutex.lock(); for(int i=0; i<m_numOfThreads; ++i) { m_ThreadData[i].haveWorkToDo = true; m_ThreadData[i].typeOfWork = e_quit; } m_WorkToDo_condvar.notify_all(); m_WorkToDo_mutex.unlock(); // As each thread terminates, catch them here for(int i=0; i<m_numOfThreads; ++i) { tthread::thread *t = m_ThreadList[i]; // Wait for thread to complete t->join(); } m_numOfThreads = 0; } Example of usage: (this calculates pi-squared/6) struct CalculationDataStruct { int inputVal; double outputVal; }; void LongCalculation( void *theSums ) { CalculationDataStruct *sums = (CalculationDataStruct *)theSums; int terms = sums->inputVal; double sum; for(int i=1; i<terms; i++) sum += 1.0/( double(i)*double(i) ); sums->outputVal = sum; } int main(int argc, char** argv) { int numThreads = 10; // Create pool ThreadPool threadPool; threadPool.CreateThreads(numThreads); // Create thread workspace CalculationDataStruct sums[numThreads]; // Set up jobs for(int i=0; i<numThreads; i++) { sums[i].inputVal = 3000*(i+1); threadPool.SubmitJob(LongCalculation, &sums[i]); } // Run the jobs threadPool.StartJobs(); threadPool.WaitForJobsToComplete(); // Print results for(int i=0; i<numThreads; i++) std::cout << "Sum of " << sums[i].inputVal << " terms is " << sums[i].outputVal << std::endl; return 0; } Question: In the ThreadPool::ThreadFunc method, would better performance be obtained if the following if statement if(NumOfThreadsDoingWork == 0) was included? Also, I'd be grateful of criticisms and ways to improve the code. At the same time, I hope the code is of use to others.

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  • Nginx http_mp4_module seam installed but dont work

    - by Tahola
    I try to use the http_mp4_module on my Ubuntu server but that didnt seem to work at all. When i check nginx -V i get : nginx version: nginx/1.1.19 TLS SNI support enabled configure arguments: --prefix=/etc/nginx --conf-path=/etc/nginx/nginx.conf --error-log-path=/var/log/nginx/error.log --http-client-body-temp-path=/var/lib/nginx/body --http-fastcgi-temp-path=/var/lib/nginx/fastcgi --http-log-path=/var/log/nginx/access.log --http-proxy-temp-path=/var/lib/nginx/proxy --http-scgi-temp-path=/var/lib/nginx/scgi --http-uwsgi-temp-path=/var/lib/nginx/uwsgi --lock-path=/var/lock/nginx.lock --pid-path=/var/run/nginx.pid --with-debug --with-http_addition_module --with-http_dav_module --with-http_flv_module --with-http_geoip_module --with-http_gzip_static_module --with-http_image_filter_module --with-http_mp4_module --with-http_perl_module --with-http_random_index_module --with-http_realip_module --with-http_secure_link_module --with-http_stub_status_module --with-http_ssl_module --with-http_sub_module --with-http_xslt_module --with-ipv6 --with-sha1=/usr/include/openssl --with-md5=/usr/include/openssl --with-mail --with-mail_ssl_module --add-module=/build/buildd/nginx-1.1.19/debian/modules/nginx-auth-pam --add-module=/build/buildd/nginx-1.1.19/debian/modules/chunkin-nginx-module --add-module=/build/buildd/nginx-1.1.19/debian/modules/headers-more-nginx-module --add-module=/build/buildd/nginx-1.1.19/debian/modules/nginx-development-kit --add-module=/build/buildd/nginx-1.1.19/debian/modules/nginx-echo --add-module=/build/buildd/nginx-1.1.19/debian/modules/nginx-http-push --add-module=/build/buildd/nginx-1.1.19/debian/modules/nginx-lua --add-module=/build/buildd/nginx-1.1.19/debian/modules/nginx-upload-module --add-module=/build/buildd/nginx-1.1.19/debian/modules/nginx-upload-progress --add-module=/build/buildd/nginx-1.1.19/debian/modules/nginx-upstream-fair --add-module=/build/buildd/nginx-1.1.19/debian/modules/nginx-dav-ext-module --with-http_mp4_module and --with-http_flv_module are there, I also add on sites-available/domaine.conf location ~ .mp4$ { mp4; mp4_buffer_size 4M; mp4_max_buffer_size 10M; } location ~ .flv$ { flv; } and Nginx restarted witout error, everything seem ok but when i check my urls myvideo.mp4?start=60 return a 404 error (what i think is normal) and video.mp4?starttime=60 return the video but whatever the starttime number is i get the full video from the begining, did i miss something ?

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  • Invoking 'Hotkey Mode' in IO Gear's GCS632U KVM Switch

    - by Tim Visher
    Awhile ago I changed the switch port key to left control on my IO Gear USB Switch and I'd like to change it back to Scroll Lock. When I did this, I have some memory of believing that I had found an error in the documentation for the switch regarding how to enter Hotkey Mode. Per the instructions in the manual(PDF), I'm supposed to be able to enter Hotkey Mode by Holding Scroll Lock for 2 seconds, adding Minus on the keypad for one second, and then release Minus first and within a second release Scroll lock. Ignoring the strangeness and fragility of this process, I'm looking for confirmation that this indeed works for anyone else. I can't remember why I thought it was wrong but I clearly remember that I did (I even had a blog post that I was going to write about but it got lost in the sands of time). As an aside, I'd be interested in seeing if there is any way to force a reset for the switch without entering Hotkey Mode as that would do exactly what I'm trying to do and I wouldn't have to mess with Hotkey Mode. Thanks in advance!

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  • MultiPath configuration on RHEL5 and Clariion CX-300

    - by Kamil Z
    I have problem with discovering my FC-connected CX-300 storage. Frankly speaking I'm complete novice in FibreChannel, so step by step explanation would be appreciated. My configuration consist of two IBM HS20 blades with RHEL5.4 on board and 2x Qlogic ISP2422-based 4Gb Fibre Channel HBAs on each blade. As a FC switch there are two Brocades built in BladeCenter Chassis, and finally there is EMC Clariion CX-300. CX300, and Brocade switches should be configured properly, because they were working fine with previous configuration, which main defference was RHEL3 instead RHEL5.4 Below there is my output from several usefull commands: #lspci | grep Fibre 06:01.0 FibreChannle: Qlogic Corp. ISP2422-based 4Gb Fibre Channel to PCI-X HBA (rev 02) 06:01.1 FibreChannle: Qlogic Corp. ISP2422-based 4Gb Fibre Channel to PCI-X HBA (rev 02) #lsmod | grep qla qla2xxx 1084741 0 scsi_transport_fc 37577 1 qla2xxx scsi_mod 141717 10 scsi_dh,qla2xxx,sg,scsi_transport_fc,usb_storage,libata,mptspi,mptscsih,scsi_transport_spi,sd_mod #cat /proc/scsi/scsi Attached Devices: Host: scsi0 Channel: 00 Id: 00 Lun: 00 Vendor: LSILOGIC Model: 1030 IM IM Rev: 1000 Type: Direct-Access ANSI SCSI revision: 02 Host: scsi0 Channel: 01 Id: 00 Lun: 00 Vendor: IBM-ESXS Model: ST936701LC FN Rev: B418 Type: Direct-Access ANSI SCSI revision: 04 Host: scsi0 Channel: 01 Id: 00 Lun: 00 Vendor: IBM-ESXS Model: ST936701LC FN Rev: B418 Type: Direct-Access ANSI SCSI revision: 04 I'd followed instructions from this site (editing /etc/multipath.conf), but i failed after multipath -ll - the output was empty. Do you have any suggestions about discovering FC Connected LUNs in such configuration?

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  • Tomcat 7 taking ages to start up after upgrade

    - by Lawrence
    I recently updated my server installation from Tomcat 6 to Tomcat 7, in order to take advantage of better connection pooling. My project uses Hibernate, for object persistance, a Mysql 5.5.20 database, and memcached for caching. When I was using Tomcat 6, Tomcat would start in about 8 seconds. After moving to Tomcat 7, it now takes between 75 - 80 seconds to start (this is on a Macbook pro 15", core i7 2Ghz, 8Gb of RAM). The only thing that has really changed between during the move from Tomcat 6 to 7 has been my context.xml file, which controls the connection pooling information: <Context antiJARLocking="true" reloadable="true" path=""> <Resource name="jdbc/test-db" auth="Container" type="javax.sql.DataSource" factory="org.apache.tomcat.jdbc.pool.DataSourceFactory" testOnBorrow="true" testOnReturn="false" testWhileIdle="true" validationQuery="SELECT 1" validationQueryTimeout="20000" validationInterval="30000" timeBetweenEvictionRunsMillis="60000" logValidationErrors="true" autoReconnect="true" username="webuser" password="xxxxxxx" driverClassName="com.mysql.jdbc.Driver" url="jdbc:mysql://databasename.us-east-1.rds.amazonaws.com:3306/test-db" maxActive="15" minIdle="2" maxIdle="10" maxWait="10000" maxAge="7200000"/> </Context> Now, as you can see, the database is running on Amazon RDS (where our live servers are), and thus is about 200ms round trip time away from my machine. I have already checked that I have security permissions to that database from my machine, (and anyway, it connects after 75 secs, so it cant be that). My initial thought was that Tomcat 7 and hibernate are doing something weird (like pre-instantiating a bunch of connections or something), and the latency to the database is amplifying the effects. While trying to diagnose the problem, I used jstack to get a stack trace of the Tomcat 7 server while its doing its startup thing. Here is the stack trace... Full thread dump Java HotSpot(TM) 64-Bit Server VM (20.12-b01-434 mixed mode): "Attach Listener" daemon prio=9 tid=7fa4c0038800 nid=0x10c39a000 waiting on condition [00000000] java.lang.Thread.State: RUNNABLE "Abandoned connection cleanup thread" daemon prio=5 tid=7fa4bb810000 nid=0x10f3ba000 in Object.wait() [10f3b9000] java.lang.Thread.State: WAITING (on object monitor) at java.lang.Object.wait(Native Method) - waiting on <7f40a0070> (a java.lang.ref.ReferenceQueue$Lock) at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:118) - locked <7f40a0070> (a java.lang.ref.ReferenceQueue$Lock) at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:134) at com.mysql.jdbc.NonRegisteringDriver$1.run(NonRegisteringDriver.java:93) "PoolCleaner[545768040:1352724902327]" daemon prio=5 tid=7fa4be852800 nid=0x10e772000 in Object.wait() [10e771000] java.lang.Thread.State: TIMED_WAITING (on object monitor) at java.lang.Object.wait(Native Method) - waiting on <7f40c7c90> (a java.util.TaskQueue) at java.util.TimerThread.mainLoop(Timer.java:509) - locked <7f40c7c90> (a java.util.TaskQueue) at java.util.TimerThread.run(Timer.java:462) "localhost-startStop-1" daemon prio=5 tid=7fa4bd034800 nid=0x10d66b000 runnable [10d668000] java.lang.Thread.State: RUNNABLE at java.net.SocketInputStream.socketRead0(Native Method) at java.net.SocketInputStream.read(SocketInputStream.java:129) at com.mysql.jdbc.util.ReadAheadInputStream.fill(ReadAheadInputStream.java:114) at com.mysql.jdbc.util.ReadAheadInputStream.readFromUnderlyingStreamIfNecessary(ReadAheadInputStream.java:161) at com.mysql.jdbc.util.ReadAheadInputStream.read(ReadAheadInputStream.java:189) - locked <7f3673be0> (a com.mysql.jdbc.util.ReadAheadInputStream) at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:3014) at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3467) at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3456) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3997) at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2468) at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2629) at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2713) - locked <7f366a1c0> (a com.mysql.jdbc.JDBC4Connection) at com.mysql.jdbc.ConnectionImpl.configureClientCharacterSet(ConnectionImpl.java:1930) at com.mysql.jdbc.ConnectionImpl.initializePropsFromServer(ConnectionImpl.java:3571) at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2445) at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2215) - locked <7f366a1c0> (a com.mysql.jdbc.JDBC4Connection) at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:813) at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47) at sun.reflect.GeneratedConstructorAccessor10.newInstance(Unknown Source) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Constructor.java:513) at com.mysql.jdbc.Util.handleNewInstance(Util.java:411) at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:399) at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:334) at org.apache.tomcat.jdbc.pool.PooledConnection.connectUsingDriver(PooledConnection.java:278) at org.apache.tomcat.jdbc.pool.PooledConnection.connect(PooledConnection.java:182) at org.apache.tomcat.jdbc.pool.ConnectionPool.createConnection(ConnectionPool.java:699) at org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:631) at org.apache.tomcat.jdbc.pool.ConnectionPool.init(ConnectionPool.java:485) at org.apache.tomcat.jdbc.pool.ConnectionPool.<init>(ConnectionPool.java:143) at org.apache.tomcat.jdbc.pool.DataSourceProxy.pCreatePool(DataSourceProxy.java:116) - locked <7f34f0dc8> (a org.apache.tomcat.jdbc.pool.DataSource) at org.apache.tomcat.jdbc.pool.DataSourceProxy.createPool(DataSourceProxy.java:103) at org.apache.tomcat.jdbc.pool.DataSourceFactory.createDataSource(DataSourceFactory.java:539) at org.apache.tomcat.jdbc.pool.DataSourceFactory.getObjectInstance(DataSourceFactory.java:237) at org.apache.naming.factory.ResourceFactory.getObjectInstance(ResourceFactory.java:143) at javax.naming.spi.NamingManager.getObjectInstance(NamingManager.java:304) at org.apache.naming.NamingContext.lookup(NamingContext.java:843) at org.apache.naming.NamingContext.lookup(NamingContext.java:154) at org.apache.naming.NamingContext.lookup(NamingContext.java:831) at org.apache.naming.NamingContext.lookup(NamingContext.java:168) at org.apache.catalina.core.NamingContextListener.addResource(NamingContextListener.java:1061) at org.apache.catalina.core.NamingContextListener.createNamingContext(NamingContextListener.java:671) at org.apache.catalina.core.NamingContextListener.lifecycleEvent(NamingContextListener.java:270) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119) at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5173) - locked <7f46b07f0> (a org.apache.catalina.core.StandardContext) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) - locked <7f46b07f0> (a org.apache.catalina.core.StandardContext) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) at java.util.concurrent.FutureTask.run(FutureTask.java:138) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:680) "Catalina-startStop-1" daemon prio=5 tid=7fa4b7a5e800 nid=0x10d568000 waiting on condition [10d567000] java.lang.Thread.State: WAITING (parking) at sun.misc.Unsafe.park(Native Method) - parking to wait for <7f480e970> (a java.util.concurrent.FutureTask$Sync) at java.util.concurrent.locks.LockSupport.park(LockSupport.java:156) at java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:811) at java.util.concurrent.locks.AbstractQueuedSynchronizer.doAcquireSharedInterruptibly(AbstractQueuedSynchronizer.java:969) at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireSharedInterruptibly(AbstractQueuedSynchronizer.java:1281) at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:218) at java.util.concurrent.FutureTask.get(FutureTask.java:83) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1123) - locked <7f453c630> (a org.apache.catalina.core.StandardHost) at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:800) - locked <7f453c630> (a org.apache.catalina.core.StandardHost) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) - locked <7f453c630> (a org.apache.catalina.core.StandardHost) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) at java.util.concurrent.FutureTask.run(FutureTask.java:138) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:680) "GC Daemon" daemon prio=2 tid=7fa4b9912800 nid=0x10d465000 in Object.wait() [10d464000] java.lang.Thread.State: TIMED_WAITING (on object monitor) at java.lang.Object.wait(Native Method) - waiting on <7f4506d28> (a sun.misc.GC$LatencyLock) at sun.misc.GC$Daemon.run(GC.java:100) - locked <7f4506d28> (a sun.misc.GC$LatencyLock) "Low Memory Detector" daemon prio=5 tid=7fa4b480b800 nid=0x10c8ae000 runnable [00000000] java.lang.Thread.State: RUNNABLE "C2 CompilerThread1" daemon prio=9 tid=7fa4b480b000 nid=0x10c7ab000 waiting on condition [00000000] java.lang.Thread.State: RUNNABLE "C2 CompilerThread0" daemon prio=9 tid=7fa4b480a000 nid=0x10c6a8000 waiting on condition [00000000] java.lang.Thread.State: RUNNABLE "Signal Dispatcher" daemon prio=9 tid=7fa4b4809800 nid=0x10c5a5000 runnable [00000000] java.lang.Thread.State: RUNNABLE "Surrogate Locker Thread (Concurrent GC)" daemon prio=5 tid=7fa4b4808800 nid=0x10c4a2000 waiting on condition [00000000] java.lang.Thread.State: RUNNABLE "Finalizer" daemon prio=8 tid=7fa4b793f000 nid=0x10c297000 in Object.wait() [10c296000] java.lang.Thread.State: WAITING (on object monitor) at java.lang.Object.wait(Native Method) - waiting on <7f451c8f0> (a java.lang.ref.ReferenceQueue$Lock) at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:118) - locked <7f451c8f0> (a java.lang.ref.ReferenceQueue$Lock) at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:134) at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:159) "Reference Handler" daemon prio=10 tid=7fa4b793e000 nid=0x10c194000 in Object.wait() [10c193000] java.lang.Thread.State: WAITING (on object monitor) at java.lang.Object.wait(Native Method) - waiting on <7f452e168> (a java.lang.ref.Reference$Lock) at java.lang.Object.wait(Object.java:485) at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:116) - locked <7f452e168> (a java.lang.ref.Reference$Lock) "main" prio=5 tid=7fa4b7800800 nid=0x104329000 waiting on condition [104327000] java.lang.Thread.State: WAITING (parking) at sun.misc.Unsafe.park(Native Method) - parking to wait for <7f480e9a0> (a java.util.concurrent.FutureTask$Sync) at java.util.concurrent.locks.LockSupport.park(LockSupport.java:156) at java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:811) at java.util.concurrent.locks.AbstractQueuedSynchronizer.doAcquireSharedInterruptibly(AbstractQueuedSynchronizer.java:969) at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireSharedInterruptibly(AbstractQueuedSynchronizer.java:1281) at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:218) at java.util.concurrent.FutureTask.get(FutureTask.java:83) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1123) - locked <7f451fd90> (a org.apache.catalina.core.StandardEngine) at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:302) - locked <7f451fd90> (a org.apache.catalina.core.StandardEngine) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) - locked <7f451fd90> (a org.apache.catalina.core.StandardEngine) at org.apache.catalina.core.StandardService.startInternal(StandardService.java:443) - locked <7f451fd90> (a org.apache.catalina.core.StandardEngine) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) - locked <7f453e810> (a org.apache.catalina.core.StandardService) at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:732) - locked <7f4506d58> (a [Lorg.apache.catalina.Service;) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) - locked <7f44f7ba0> (a org.apache.catalina.core.StandardServer) at org.apache.catalina.startup.Catalina.start(Catalina.java:684) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:322) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:451) "VM Thread" prio=9 tid=7fa4b7939800 nid=0x10c091000 runnable "Gang worker#0 (Parallel GC Threads)" prio=9 tid=7fa4b7802000 nid=0x10772b000 runnable "Gang worker#1 (Parallel GC Threads)" prio=9 tid=7fa4b7802800 nid=0x10782e000 runnable "Gang worker#2 (Parallel GC Threads)" prio=9 tid=7fa4b7803000 nid=0x107931000 runnable "Gang worker#3 (Parallel GC Threads)" prio=9 tid=7fa4b7804000 nid=0x107a34000 runnable "Gang worker#4 (Parallel GC Threads)" prio=9 tid=7fa4b7804800 nid=0x107b37000 runnable "Gang worker#5 (Parallel GC Threads)" prio=9 tid=7fa4b7805000 nid=0x107c3a000 runnable "Gang worker#6 (Parallel GC Threads)" prio=9 tid=7fa4b7805800 nid=0x107d3d000 runnable "Gang worker#7 (Parallel GC Threads)" prio=9 tid=7fa4b7806800 nid=0x107e40000 runnable "Concurrent Mark-Sweep GC Thread" prio=9 tid=7fa4b78e3800 nid=0x10bd0b000 runnable "Gang worker#0 (Parallel CMS Threads)" prio=9 tid=7fa4b78e2800 nid=0x10b305000 runnable "Gang worker#1 (Parallel CMS Threads)" prio=9 tid=7fa4b78e3000 nid=0x10b408000 runnable "VM Periodic Task Thread" prio=10 tid=7fa4b4815800 nid=0x10c9b1000 waiting on condition "Exception Catcher Thread" prio=10 tid=7fa4b7801800 nid=0x104554000 runnable JNI global references: 919 The only thing I can figure out from this is that it looks like the mysql jdbc drivers might have something to do with the long start up (the various stack traces I took during the start up process all pretty much look the same as this). Could anyone shed some light on what might be causing this? Have I done something dense in my context.xml? Is hibernate perhaps to blame?

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  • Get details / solve issue with a kernel panic?

    - by Joseph
    I have a Lenovo T430 running Linux Mint 13 (MATE): joseph:~$ uname -a Linux joseph-T430-LM 3.2.0-23-generic #36-Ubuntu SMP Tue Apr 10 20:39:51 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux I installed Mint immediately after getting the laptop about two weeks ago, and have noticed that about once a day, the computer will completely freeze up- I can't use Ctrl+Alt+Backspace to restart X, I can't use Ctrl+Alt+F1 to get a text only terminal, can't move mouse, can't type, and if any music was playing it just gets stuck in about a 1-second loop. There is a Windows partition, but I haven't had any issues in Windows. I couldn't find a common thread between the freezes, they were seemingly random (sometimes right after I clicked the mouse, sometimes not; sometimes with Pandora/flash being used, sometimes not, etc). I assume they're kernel panics since it completely locks up, but the laptop doesn't have a capslock or scroll lock LED. It is on a dock and I do have a USB keyboard, but the scroll lock/capslock lights do not flash when it happens (not sure if this is indicating its not a kernel panic, or if the kernel panic just wouldn't illuminate the LEDs on a usb keyboard attached to a laptop dock). This was annoying but not terrible. However, I've found a way to reproduce it. I have a particular CSV file that when I open up in LibreOffice Calc and scroll around, the same thing happens- complete lock up. I really need to use this file, so I'd like to fix the issue, but at the least it's given me a test case to work with. So, having a case where I can cause this issue, what can I do to better find out what's going on? I've looked in /var/log/syslog but haven't found anything seemingly useful. Any thoughts?

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  • How to prevent nginx from locking files on mounted samba partition in Centos 6

    - by Bruce Kirkpatrick
    I'm using nginx 1.3.8 inside a centos 6.3 virtualbox 4.2.4 virtual machine. The system is running the latest software available via yum update. The host OS is windows 7. The site files nginx is serving are on mounted samba partition, which is a folder on the host Windows system. I.e., inside linux, nginx paths are referring to /home/vhosts and this is mounted from D:\vhosts\ on windows. The samba partition is mounted as root with 777 privileges. /etc/fstab looks like this, but with real ip, username, password: //hostip/vhosts /home/vhosts cifs username=username,password=SECRETPASSWORD,uid=root,gid=root,file_mode=0777,dir_mode=0777,rw,_netdev 0 0 I.e. linux/nginx reads from the windows share, and not the opposite. in /etc/samba/smb.conf, I have tried to disable all samba locking features, but it seems to have no effect even after rebooting the virtual machine. locking=no share modes=no oplocks = no level2 oplocks = no kernel oplocks =no I'm receiving "Access is denied" errors in Windows or linux when attempting to overwrite the javascript file in windows that has been accessed at least once with nginx. If I run "service nginx reload", the lock is removed and I'm able to save the file. That's why I think it is nginx causing the lock. The same problem occurs with directories. However, that may be a different issue not related to the use of samba. I'm using samba so that I can manage the source code outside of the virtual machine. Also note that after I run "service nginx reload", the file I'm editing is actually automatically deleted from the windows host. SOLVED: I just reviewed my nginx.conf file. It appears the "open_file_cache" feature is what is causing the lock and deleted files. When I set this option to open_file_cache off;, My problem is resolved. I will repost as the answer when it allows me to do so.

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  • Wireless USB keyboard and mouse can wake system, but then receiver is inactive

    - by BlueMonkMN
    I have a Microsoft brand USB device that acts as a receiver for a wireless Microsoft Keyboard and a wireless Mouse. When it's operating normally, there are LEDs on the device indicating Caps Lock, Num Lock and Function Lock, of which the latter 2 are usually lit. It is plugged into a Dell Isnpiron 531 with Windows 7 32-bit running on an AMD Athlon 64 X2 Dual Core processor 5000+. When the computer goes to sleep (the power indicator on the main box is flashing), I can wake it by moving the mouse. So far all is good. However, something changed in, I think, the past couple weeks (I suspect due to a Microsoft driver update problem). Before the change, after waking the computer, everything would operate normally as far as I could tell, but now after waking the computer, the receiver has no lights on, and the keyboard and mouse are completely unresponsive (which is odd, considering the mouse woke up the computer). There is a button on the receiver that's supposed to reset the wireless connection and flash the lights while it does so, but it has no effect in this state. It's like the receiver doesn't have power (but how would the system know I moved the mouse, unless the power was on until it woke up?). I have checked the BIOS/CMOS settings or whatever you call them, and did not see anything related to USB in the power management section. I have checked Windows 7 device manager and ensured that all the USB Root Hub devices have the setting unchecked for allowing the USB power to be turned off. Like I said, this was working before, and the only thing I can think of that's changed is applying Windows Updates.

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  • sysctl.conf not running on boot

    - by Brian
    At what point is sysctl.conf supposed to be read during boot, and why might it not be running? I have the following settings which are not being applied when I reboot: net.bridge.bridge-nf-call-arptables = 0 net.bridge.bridge-nf-call-ip6tables = 0 net.bridge.bridge-nf-call-iptables = 0 net.bridge.bridge-nf-filter-pppoe-tagged = 0 net.bridge.bridge-nf-filter-vlan-tagged = 0 fs.nfs.nlm_udpport = 32768 fs.nfs.nlm_tcpport = 32768 The first section is needed for KVM bridging, and the second is to run the NFS lock manager on a known port. However, after booting, these values have not taken effect. If I run sysctl -p, then they do. This wouldn't be a huge issue, except that I can't figure out how to restart the lock manager without rebooting. I would really like to know why sysctl.conf isn't working at boot, but I'd settle for just being able to restart the lock manager. This is on Ubuntu server 10.04.2, kernel 2.6.32-31-server. I know some daemons check the permissions on their config files and refuse to work if they're too permissive, but sysctl.conf is 644 root:root, which I'm pretty sure is the default.

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  • Unable to use OpenGL or install nVidia driver on openSUSE 12.2

    - by djechelon
    I have an ASUS N76VZ laptop with 12.2 openSUSE and GeForce GT650M card. I found that KDE doesn't allow me to use OpenGL rendering. I tried to install nVidia's driver from script but once it writes the xorg.conf file I'm unable to boot desktop. I have the following errors in system log Oct 30 08:28:13 RAYNOR kdm[2727]: X server died during startup Oct 30 08:28:13 RAYNOR kdm[2727]: X server for display :0 cannot be started, session disabled I noticed that the /etc/X11/xorg.conf backup file was empty, so I renamed the new xorg.conf and left none: the desktop booted!!! How can I fix OpenGL rendering with or without driver installation? [Update]: Xorg.0.log says [ 1434.207] compiled for 4.0.2, module version = 1.0.0 [ 1434.207] Module class: X.Org Server Extension [ 1434.207] (II) NVIDIA GLX Module 304.60 Sun Oct 14 20:44:54 PDT 2012 [ 1434.207] (II) Loading extension GLX [ 1434.207] (II) LoadModule: "record" [ 1434.207] (II) Loading /usr/lib64/xorg/modules/extensions/librecord.so [ 1434.207] (II) Module record: vendor="X.Org Foundation" [ 1434.207] compiled for 1.12.3, module version = 1.13.0 [ 1434.207] Module class: X.Org Server Extension [ 1434.207] ABI class: X.Org Server Extension, version 6.0 [ 1434.207] (II) Loading extension RECORD [ 1434.207] (II) LoadModule: "dri" [ 1434.207] (II) Loading /usr/lib64/xorg/modules/extensions/libdri.so [ 1434.207] (II) Module dri: vendor="X.Org Foundation" [ 1434.207] compiled for 1.12.3, module version = 1.0.0 [ 1434.207] ABI class: X.Org Server Extension, version 6.0 [ 1434.207] (II) Loading extension XFree86-DRI [ 1434.207] (II) LoadModule: "nvidia" [ 1434.208] (II) Loading /usr/lib64/xorg/modules/drivers/nvidia_drv.so [ 1434.208] (II) Module nvidia: vendor="NVIDIA Corporation" [ 1434.208] compiled for 4.0.2, module version = 1.0.0 [ 1434.208] Module class: X.Org Video Driver [ 1434.208] (II) NVIDIA dlloader X Driver 304.60 Sun Oct 14 20:24:42 PDT 2012 [ 1434.208] (II) NVIDIA Unified Driver for all Supported NVIDIA GPUs [ 1434.208] (++) using VT number 8 [ 1434.320] (EE) No devices detected. [ 1434.320] Fatal server error: [ 1434.320] no screens found [ 1434.320] Please consult the The X.Org Foundation support at http://wiki.x.org for help.

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  • RAM being displayed is lesser than the actual in my Windows 7

    - by Prateek Somani
    I am using Windows 7 and Ubuntu on the same machine. Earlier I had 3 GB of RAM,but now the Windows is displaying just 1 GB of RAM. Please also find the output of the free command in my Ubuntu : total used free shared buffers cached Mem: 1008208 904808 103400 5736 13516 239596 -/+ buffers/cache: 651696 356512 Swap: 3127292 10252 3117040 Has the swap memory consumed my 2 GB of RAM? Will I be able to use the whole of 3GB of the RAM in my Windows? Regards, Prateek Update : I tried to run the lshw command and I got the following output : *-memory description: System Memory physical id: 1b slot: System board or motherboard size: 1GiB *-bank:0 description: SODIMM DDR3 Synchronous 1067 MHz (0.9 ns) product: HMT112S6BFR6C-H9 vendor: Hynix physical id: 0 serial: 2C71D069 slot: Bottom - Slot 1 size: 1GiB width: 64 bits clock: 1067MHz (0.9ns) *-bank:1 description: SODIMM DDR3 Synchronous 1067 MHz (0.9 ns) [empty] product: 16JSF25664HZ-1G4F1 vendor: Micron physical id: 1 serial: FD421821 slot: Bottom - Slot 2 width: 64 bits clock: 1067MHz (0.9ns) Why it is able to detect the vendor/product name of the bank-1 RAM, why can't it detect the RAM size and other details ? Has my RAM got faulty?

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  • What does this diagnostic output mean?

    - by ChrisF
    I recently had a fault with my broadband connection. It turned out to be a fault with the ISP's or teleco's equipment. My ISP posted this diagnostic, but while I understand it in general, I'd like to to know more about the details. I'm assuming that ATM means Asynchronous Transfer Mode and PPP means Point to Point Protocol. It was this that my router was indicating as the fault. xDSL Status Test Summary Sync Status: Circuit In Sync General Information NTE Status: NTE Power Status: Unknown Bypass Status: Upstream DSL Link Information Downstream DSL Link Information Loop Loss: 9.0 17.0 SNR Margin: 25 15 Errored Seconds: 0 0 HEC Errors: 0 Cell Count: 0 0 Speed: 448 8128 TAM Status: Successfully executed operation Network Test: Sub-Test Results Layer Name Value Status Modem pass Transmitter Power (Upstream) 12.4 dBm Transmitter Power (Downstream) 8.8 dBm Upstream psd -38 dBm/Hz Downstream psd -51 dBm/Hz DSL pass Equipment Vendor Name TSTC Equipment Vendor Id n/a Equipment Vendor Revision n/a Training Time 8 s Num Syncs 1 Upstream bit rate 448 kbps Downstream bit rate 8128 kbps Upstream maximum bit rate 1108 kbps Downstream maximum bit rate 11744 kbps Upstream Attenuation 3.5 dB Downstream Attenuation 0.0 dB Upstream Noise Margin 20.0 dB Downstream Noise Margin 19.0 dB Local CRC Errors 0 Remote CRC Errors 0 Up Data Path interleaved Down Data Path interleaved Standard Used G_DMT INP INP Upstream Symbols n/a INP Upstream Delay 4 ms INP Upstream Depth 4 INP Downstream Symbols n/a INP Downstream Delay 5 ms INP Downstream Depth 32 ATM Reason: No ATM cells received fail Number of cells transmitted 30 Number of cells received 0 number of Near end HEC errors 0 number of Far end HEC errors n/a PPP Reason: No response from peer fail PAP authentication nottested CHAP authentication nottested (I'm not sure that Super User is the best place to ask this, but two people have suggested I ask it here so here I am).

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  • RTL8192SU + RTL8191E Linux Issue Installing Driver

    - by s32ialx
    OK I've read tons of fourms of people getting the onboard RTL8191E working and the RTL8192SU working dif is U = USB they are both N and i have both Toshiba L500D-00T pre-installed Win Vistax64-HP and i have obtained the free Win7x64-HP upgrade the onboard wificard sucks and can't hold a stable connection for more then 20minutes in windows but the usb is amazing. Now problem is i tried both Ubuntu and Mandriva with no resolve the issue is the onboard drive detects and actually SHOWS that it's there but no wireless networks detect so it's saying no SSID's are broadcasting which i know is a lie since I'm running a 2wire bell dsl modem with built in wifi and a Linksys wrt54g w/ DD-WRT firmware and both are broadcasting fine. Why don't i use the USB? new in Mandriva Linux Control Center 2010.0 it shows up in Other/Unknown as RTL8191S WLAN Adapter and on the right pane this shows up Identification Vendor: ?Manufacturer Realtek Description: ?RTL8191S WLAN Adapter Media class: ? Connection Bus: ?USB Bus PCI #: ?1 PCI device #: ?5 Vendor ID: ?0x0bda Device ID: ?0x8172 Sub vendor ID: ?0x0000 Sub device ID: ?0x0000 Misc Module: ?rtl819xU In the hardware device manager in mandriva it shows up as unknown but shows that it's realtek and that it's a 8192 chipset. but no option to for a driver install and when i do a make in terminal i get this error and no clue what it means [root@John-PC rtl8192se_linux_2.6.0010.1020.2009_64bit]# make make: *** /lib/modules/2.6.31.12-desktop-3mnb/build: No such file or directory. Stop. make: *** [all] Error 2 [root@John-PC rtl8192se_linux_2.6.0010.1020.2009_64bit]# any help appreciated. and just encase I'm running currently Mandriva Spring 2010 Free

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  • Sonicwall NSA 240, Configured for LAN and DMZ, X0 and X2 on same switch - ping issues

    - by Klaptrap
    Our Sonicwall vendor supplied and networked the NSA240 when we required a DMZ in our infrastructure. This was configured and appeared correct although VPN users periodically dropped DNS and Terminal Services. The vendor could not resolve and so the call was escalated to Sonicwall. The Sonicwall support engineer took a look and concluded that the X0 (LAN) and X2 (DMZ) intefaces were cabled to the same switch and so this is the issue. What he observed is a ping request to the LAN Domain Controller, from a connected VPN user, is forwarded (x0) from the VPN client IP to the DC IP but the ping response from the DC IP to the VPN client IP is on X2, a copy of the log is detailed below:- 02/02/2011 10:47:49.272 X1*(hc) X0 192.168.1.245 192.168.1.8 IP ICMP -- FORWARDED 02/02/2011 10:47:49.272 -- X0* 192.168.1.245 192.168.1.8 IP ICMP -- FORWARDED 02/02/2011 10:47:49.272 X2*(i) -- 192.168.1.8 192.168.1.245 IP ICMP -- Received X0 - LAN X1 - WAN X2 - DMZ The Sonicwall engineer concluded that we either need a seperate switch for X2 or we use a VLAN switch for both. I am the companies software engineer and we have yet to have heard back from the vendor, so I am lost at sea at the moment. Do we need to buy this additional equipment or is there another configuration on the NSA240 we can use?

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  • How do I create a read only MySQL user for backup purposes with mysqldump?

    - by stickmangumby
    I'm using the automysqlbackup script to dump my mysql databases, but I want to have a read-only user to do this with so that I'm not storing my root database password in a plaintext file. I've created a user like so: grant select, lock tables on *.* to 'username'@'localhost' identified by 'password'; When I run mysqldump (either through automysqlbackup or directly) I get the following warning: mysqldump: Got error: 1044: Access denied for user 'username'@'localhost' to database 'information_schema' when using LOCK TABLES Am I doing it wrong? Do I need additional grants for my readonly user? Or can only root lock the information_schema table? What's going on? Edit: GAH and now it works. I may not have run FLUSH PRIVILEGES previously. As an aside, how often does this occur automatically? Edit: No, it doesn't work. Running mysqldump -u username -p --all-databases > dump.sql manually doesn't generate an error, but doesn't dump information_schema. automysqlbackup does raise an error.

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  • Running python script in incrontab in Debian

    - by WilliamMayor
    I have a user, dropbox, that runs the Dropbox daemon, I want to monitor the directories in the Dropbox directory for new files and run a python script when they appear. I have the python script that I know works: $ /home/dropbox/monitor.py Trying to get lock Got lock, waiting for Dropbox to be idle Dropbox idle Finding instructions Done, releasing lock I have an incrontab entry: $ incrontab -l /home/dropbox/Dropbox IN_CREATE /home/dropbox/monitor.py | logger /home/dropbox/test IN_CREATE logger "$$ $@ $# $% $&" When I add a file to the test directory I see the output in /var/log/syslog: $ touch /home/dropbox/test/a $ tail /var/log/syslog ... Nov 9 10:18:27 vps incrond[1354]: (dropbox) CMD (logger "$ /home/dropbox/test a IN_CREATE 256") Nov 9 10:18:27 vps logger: "$ /home/dropbox/test a IN_CREATE 256" ... However, when I add a file to the Dropbox directory the command doesn't seem to run: $ touch /home/dropbox/Dropbox/a $ tail /var/log/syslog ... Nov 9 10:24:16 vps incrond[1354]: (dropbox) CMD (/home/dropbox/monitor.py | logger) ... So the incron daemon notices the new file and the correct command is found to be executed but it never actually gets executed. Nor are there any error messages. It kind of seems like incrontab can only be used to run the most simple of commands. This might be a similar question to: Incrond running but not executing commands CentOS 6.4 but I think that I don't have env problems, every path is absolute. I tried changing .../monitor.py to /usr/bin/python2.7 .../monitor.py just in case but it didn't make any difference.

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  • What is the best way to recover from a mysql replication fail?

    - by Itai Ganot
    Today, the replication between our master mysql db server and the two replication servers dropped. I have a procedure here which was written a long time ago and i'm not sure it's the fastest method to recover for this issue. I'd like to share with you the procedure and I'd appreciate if you could give your thoughts about it and maybe even tell me how it can be done quicker. At the master: RESET MASTER; FLUSH TABLES WITH READ LOCK; SHOW MASTER STATUS; And copy the values of the result of the last command somewhere. Wihtout closing the connection to the client (because it would release the read lock) issue the command to get a dump of the master: mysqldump mysq Now you can release the lock, even if the dump hasn't end. To do it perform the following command in the mysql client: UNLOCK TABLES; Now copy the dump file to the slave using scp or your preferred tool. At the slave: Open a connection to mysql and type: STOP SLAVE; Load master's data dump with this console command: mysql -uroot -p < mysqldump.sql Sync slave and master logs: RESET SLAVE; CHANGE MASTER TO MASTER_LOG_FILE='mysql-bin.000001', MASTER_LOG_POS=98; Where the values of the above fields are the ones you copied before. Finally type START SLAVE; And to check that everything is working again, if you type SHOW SLAVE STATUS; you should see: Slave_IO_Running: Yes Slave_SQL_Running: Yes That's it! At the moment i'm in the stage of copying the db from the master to the other two replication servers and it takes more than 6 hours to that point, isn't it too slow? The servers are connected through a 1gb switch.

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  • Clarification for setting up SSH terminal access on Cisco IOS

    - by Matt Malesky
    I'm attempting to set up SSH on a Cisco 2811 and having some difficulties. The first step to this should be running crypto key generate rsa I seem to be missing this though: better#crypto key generate rsa ^ % Invalid input detected at '^' marker. better# Furthermore, the only available commands I have in the crypto key namespace are lock and unlock, which seem to indicate a locked keypair (for which I don't know the password): better#crypto key ? lock Lock a keypair. unlock Unlock a keypair. better#crypto key unlock ? rsa RSA keys better#crypto key unlock rsa %% Please enter the passphrase: %% Unlocking failed. . better# More or less, I'm asking what exactly this might mean, and if I actually do have certificates already here (used router)? Otherwise, how can I solve this? It's my first time configuring this feature, but I definitely believe it's part of my IOS. Speaking of my IOS, I'm running the image c2800nm-advsecurityk9-mz.124-24.T6.bin I'll also note that I have my hostname and ip domain-name configured. I'll also give you a dir flash: below if it's at all of use: better#dir flash: Directory of flash:/ 2 -rw- 2748 Jul 27 2009 14:03:52 +00:00 sdmconfig-2811.cfg 3 -rw- 931840 Jul 27 2009 14:04:10 +00:00 es.tar 4 -rw- 1505280 Jul 27 2009 14:04:32 +00:00 common.tar 5 -rw- 1038 Jul 27 2009 14:04:46 +00:00 home.shtml 6 -rw- 112640 Jul 27 2009 14:05:00 +00:00 home.tar 7 -rw- 1697952 Jul 27 2009 14:05:26 +00:00 securedesktop-ios-3.1.1.45-k9.pkg 8 -rw- 415956 Jul 27 2009 14:05:46 +00:00 sslclient-win-1.1.4.176.pkg 9 -rw- 38732900 Dec 8 2011 06:28:56 +00:00 c2800nm-advsecurityk9-mz.124-24.T6.bin 64016384 bytes total (20598784 bytes free) better#

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  • Relaying to tech "support" that computer is actually broken.

    - by Sion
    First some background: I have a Dell Inspiron 15R M050, it is still under the Dell limited warranty and the Best Buy Extended warranty. I am currently dual booting Debian Squeeze and Windows 7, the only reason I go into Windows is to play video games specifically steam games. Issue: When I play my games in Windows I am capable of playing for anywhere from 5 minutes to 2 hours before I suffer a hard-lock. I cannot alt-tab, ctrl-alt-delete, ctrl-shift-escape do anything for 2-3 minutes. After this hard-lock period everything runs fine, I can continue the game for probably another hour at least before I suffer another lock. Games: Borderlands, Splinter Cell: Chaos Theory, Starcraft 2, Garrys Mod What I have tried: Running the diagnostic suite in the dell bios, restoring the OEM Windows recovery partition on the HD, fresh installing Windows 7 Professional, updating BIOS, Calling tech support and having them run a software Hardware Diagnostics suite. The question: I think from the research that I have performed that it might be a lack of thermal paste on the CPU, would I be able to go to Best Buy and have them do a hardware diagnostic from the hardware level then have them be able to tell Dell that there is a hardware issue? Or would there be a different problem?

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  • 3 simple questions about file permissions

    - by Camran
    1- Wonder, is this a good setup of permissions in the /var directory? drwxr-xr-x 2 root root 4096 2010-05-30 03:34 backups drwxr-xr-x 7 root root 4096 2010-05-29 17:55 cache drwxr-xr-x 29 root root 4096 2010-05-29 17:55 lib drwxrwsr-x 2 root staff 4096 2009-07-14 04:36 local drwxrwxrwt 3 root root 60 2010-06-02 03:34 lock drwxr-xr-x 9 root root 4096 2010-06-02 03:34 log drwxrwsr-x 2 root man 4096 2009-09-20 20:36 mail drwxr-xr-x 2 root root 4096 2009-09-20 20:36 opt drwxrwxrwt 12 root root 420 2010-06-02 12:12 run drwxr-xr-x 4 root root 4096 2009-09-20 20:37 spool drwxrwxrwt 2 root root 4096 2009-07-14 04:36 tmp drwxr-xr-x 14 user root 4096 2010-05-30 22:21 www 2- Could you give me a brief explanation of the columns above? First one is which permissions they have. Second is a nr. Third and fourth says "root root" for example. fifth is another nr (4096 for example). and the others are obvious. 3- Could you give me a brief explanation of the folders above? Especially the "lock" and "tmp" folders. Lock contains an apache2 folder which seems empty. Thanks

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