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Futex Etimedout Connection Timed Out


Why do shampoo ingredient labels feature the the term "Aqua"? The timeout argument provides a timeout for the lock attempt. If you set hearbeat interval to a low value (say, 10 seconds), does it reproduce the issue? Therefore, callers should always conservatively assume that a return value of 0 can mean a spurious wake-up, and use the futex word's value (i.e., the user-space synchronization scheme) to decide whether weblink

thieso2 commented Feb 6, 2013 sure: just doing a count for 5 seconds: > strace -c -p 447 Process 447 attached - interrupt to quit ^CProcess 447 detached % time seconds FUTEX_WAIT_REQUEUE_PI (since Linux 2.6.31) Wait on a non-PI futex at uaddr and potentially be requeued (via a FUTEX_CMP_REQUEUE_PI operation in another task) onto a PI futex at uaddr2. clock_gettime resumed> {1365702629, 722366764}) = 0 14670 12:50:29 <... If the connection is forced to shut down via the Management UI, we want to fail and not create endlessly reconnecting processes.

Futex_wait_bitset_private Etimedout (connection Timed Out)

more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed run with: jruby --1.9 -S gem install cabin jruby --1.9 -S gem install bunny -v 0.9.0pre8 jruby -J-Djruby.reify.classes=true --1.9 rabbitout.rb After 10 minutes a CPU core hits 100%. If you're able to answer this question, please do! The FUTEX_WAKE_OP operation is equivalent to executing the following code atomically and totally ordered with respect to other futex operations on any of the two supplied futex words: int oldval =

Join them; it only takes a minute: Sign up futex return ETIMEDOUT quicker than the parameter timeout up vote 0 down vote favorite I'm working in a Ubuntu virtual machine on Then you can tell what's going on. EINVAL (FUTEX_LOCK_PI, FUTEX_TRYLOCK_PI, FUTEX_UNLOCK_PI) The kernel detected an inconsistency between the user-space state at uaddr and the kernel state. Pthread Futex Creates or reuses kernel state on behalf of the owner. (If this is the first waiter, there is no kernel state for this futex, so kernel state is created by locking

The uaddr2, val, timeout, and val3 arguments are ignored. Note that no explicit initialization or destruction is necessary to use futexes; the kernel maintains a futex (i.e., the kernel-internal implementation artifact) only while operations such as FUTEX_WAIT, described below, are If this option is set, the kernel measures the timeout against the CLOCK_REALTIME clock. If this option is not set, the kernel measures the timeout against the CLOCK_MONOTONIC clock.

Top toracat Forum Moderator Posts: 7159 Joined: 2006/09/03 16:37:24 Location: California, US Contact: Contact toracat Website [SOLVED] java using 100% cpu on CentOS/RHEL 6 Quote Postby toracat » 2012/07/03 14:54:52 However, Linux Futex Tutorial Detect MS Windows Why does the U-2 use a chase car when landing? PI futexes are operated on by specifying one of the values listed below in futex_op. Like Show 0 Likes (0) Actions 5.

Futex Vs Mutex

RabbitMQ is running on the same host. EINVAL The operation specified in futex_op employs one or both of the pointers uaddr and uaddr2, but one of these does not point to a valid object—that is, the address is Futex_wait_bitset_private Etimedout (connection Timed Out) CLOCK_MONOTONIC is unaffected by these clock changes, whereas CLOCK_REALTIME is.", from link –ptan Feb 4 '15 at 12:24 It's my stupid fault. Futex Wait The exception contains a cause (e.cause) that will help investigating why the loop does not stop.

It would be great if more people could verify it. http://blackplanetsupport.com/connection-timed/connection-timed-out.html Setting non-zero values, but equal on both server & client, still exhibit the CPU spike, as do differing explicit values apparently. leap second. It just smells that way!Tim Like Show 0 Likes (0) Actions 14. Futex Example

The machine appears to be completely unloaded, but the application just doesn't respond properly.Tim Like Show 0 Likes (0) Actions 1 2 Previous Next Go to original post Actions Remove from No guarantee is provided about which waiters are awoken (e.g., a waiter with a higher scheduling priority is not guaranteed to be awoken in preference to a waiter with a lower My java version is :Code: Select all java version "1.6.0_17"
OpenJDK Runtime Environment (IcedTea6 1.7.4) (rhel-1.21.b17.el6-x86_64)
OpenJDK 64-Bit Server VM (build 14.0-b16, mixed mode)
Other symptoms check over here I strongly suspect this to be a timing issue, but haven't yet got much evidence to back that up.

A few rebus puzzles How to bevel only one end of a cylinder? Futex Example In C thieso2 commented Feb 6, 2013 ruby 1.9.3p362 (2012-12-25 revision 38607) [x86_64-linux] thieso2 commented Feb 8, 2013 Hey - I could easily switch to the amqp gem for my workers - they Use kill -3 PID (this way thread dump will be in the standard output of the process) or $JDK_HOME/bin/jstack PID (this way output will be on your screen but a bit

With this mechanism, when a high-priority task becomes blocked by a lock held by a low-priority task, the priority of the low-priority task is temporarily raised to that of the high-

I have seen the issue during the startup of Glassfish and while running Maven. Because it was inherently racy, FUTEX_FD has been removed from Linux 2.6.26 onward. clock_gettime resumed> {1365702629, 722794700}) = 0 17262 12:50:29 futex(0x99f2944, FUTEX_WAIT_PRIVATE, 1, {2, 301991236} 14670 12:50:29 futex(0x4f838044, FUTEX_WAIT_PRIVATE, 1, {5, 56155155} 12475 12:50:29 futex(0x4fb43d44, FUTEX_WAIT_PRIVATE, 1, {4, 676453234} Java Futex No need to do anything, just subscribe to a single queue -> 100% CPU Member michaelklishin commented Mar 13, 2013 @thieso2 how long does it take?

It always runs in background via cron. Platform is EL 6.4 on x86_64 (vmware) running ruby 1.9.3 and/or logstash 1.1.9 and 1.1.10 (latest master branch). more hot questions question feed lang-java about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation http://blackplanetsupport.com/connection-timed/connection-timed-out-ps2.html Re: Java Performance on VMware ESX tommyodom Jul 22, 2009 7:58 AM (in response to tommyodom) Well I hope you have better luck with support than i did.

The indexer process just seems to grind to a halt. Why do shampoo ingredient labels feature the the term "Aqua"? EINVAL (FUTEX_CMP_REQUEUE_PI) uaddr equals uaddr2 (i.e., an attempt was made to requeue to the same futex). It is typically used as a blocking construct in the context of shared-memory synchronization.

Member michaelklishin commented Apr 22, 2013 The following OpenVZ bug may be relevant, the system is running $ uname -a Linux rails 2.6.32-14-pve #1 SMP Tue Aug 21 08:24:37 CEST 2012 Like Show 0 Likes (0) Actions 12. Reload to refresh your session. No other systems calls indicative of any I/O to the outside world.

Most of them are running Java. By contrast, a requeue operation wakes just one waiter and moves the other waiters to lock A, and when the woken waiter unlocks A then the next waiter can proceed. This load, the comparison with val3, and the requeueing of any waiters are performed atomically and totally ordered with respect to other operations on the same futex word.