BTW, here is a screenshot that shows the problem: http://people.apache.org/~veithen/axis2-builds.png
The three Axis2 builds all use the same lock. Andreas On Sat, Jan 7, 2012 at 13:38, Andreas Veithen <andreas.veit...@gmail.com> wrote: > We've seen similar issues with Axis2 builds in the past. I had the > impression that this has something to do with the usage of locks. We > are using a lock for the Axis2 builds (because they use fixed port > numbers in unit tests and therefore can't be executed concurrently). > Interestingly the hbase build also uses a lock. > > Speculating further on the possible cause, what we have seen with > Axis2 was that sometimes two (or more) different builds (for different > branches) where triggered at the same time by the completion of a > common upstream build (Axiom trunk e.g.). Since the Axis2 builds use a > common lock, one would expect that only one starts execution, while > the others remain in the build queue. However, what happened is that > sometimes, two builds started execution in parallel, with one waiting > for the lock (i.e. instead of waiting in the build queue, it was > assigned to an executor and waiting there). I had the impression that > this kind of situation increases the probability of ending up in a > situation where the build is stuck or reported as being assigned to > master. > > I haven't seen this in a while for the Axis2 builds, but this may be > simply because the dependencies between builds have changed in the > meantime. > > Andreas > > On Sat, Jan 7, 2012 at 13:16, sebb <seb...@gmail.com> wrote: >> On 7 January 2012 03:20, Ted Yu <yuzhih...@gmail.com> wrote: >>> Hi, >>> I tried to terminate build 2616 but couldn't: >>> https://builds.apache.org/view/G-L/view/HBase/job/HBase-TRUNK/2616/ >> >> Looks like a Jenkins bug - the summary says >> >> "Started 10 hr ago >> Build is being executed for null on master" >> >> and the tooltip text in build history says: >> >> "Started null ago >> Estimated remaining time: null" >> >>> Please stop this build. >>> >>> Thanks
