Could be related to: https://github.com/akka/akka/issues/19216
On Fri, Mar 4, 2016 at 1:26 PM, Chris Baxter <[email protected]> wrote: > I have noticed a strange issue after we upgraded to akka 2.4.2 that > appears sporadically but once it rears its ugly head it basically causes > the server to consume a ton of CPU and we have to restart. This issue > appears to be with the smallest mailbox pool router. It gets hung up in > peekNode in AbstractNodeQueue, in that do/while loop: > > protected final Node<T> peekNode() { > > final Node<T> tail = ((Node<T>)Unsafe.instance.getObjectVolatile( > this, tailOffset)); > > Node<T> next = tail.next(); > > if (next == null && get() != tail) { > > // if tail != head this is not going to change until producer > makes progress > > // we can avoid reading the head and just spin on next until > it shows up > > do { > > next = tail.next(); > > } while (next == null); > > } > > return next; > > } > > > I have attached a screenshot of the thread dump from jconsole. I'm still > in the early stages of debugging this, but would appreciate any info from > the akka team on this. > > -- > >>>>>>>>>> Read the docs: http://akka.io/docs/ > >>>>>>>>>> Check the FAQ: > http://doc.akka.io/docs/akka/current/additional/faq.html > >>>>>>>>>> Search the archives: https://groups.google.com/group/akka-user > --- > You received this message because you are subscribed to the Google Groups > "Akka User List" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at https://groups.google.com/group/akka-user. > For more options, visit https://groups.google.com/d/optout. > -- Cheers, √ -- >>>>>>>>>> Read the docs: http://akka.io/docs/ >>>>>>>>>> Check the FAQ: >>>>>>>>>> http://doc.akka.io/docs/akka/current/additional/faq.html >>>>>>>>>> Search the archives: https://groups.google.com/group/akka-user --- You received this message because you are subscribed to the Google Groups "Akka User List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/akka-user. For more options, visit https://groups.google.com/d/optout.
