> On July 25, 2013, 1:53 a.m., Vinod Kone wrote: > > hadoop/mesos/src/java/org/apache/hadoop/mapred/MesosScheduler.java, lines > > 76-79 > > <https://reviews.apache.org/r/11124/diff/8/?file=327717#file327717line76> > > > > Just curious, why the task trackers would never launch? The mesos slave > > kills the executor if it doesn't register within a timeout? Would that not > > be sufficient here? > > Did you see hung task trackers?
It seems to happen occassionaly on slaves that are busy. Sometimes it will get 'stuck' somewhere between grabbing the executor from HDFS, extracting it, and then launching the TaskTracker. - Brenden ----------------------------------------------------------- This is an automatically generated e-mail. To reply, visit: https://reviews.apache.org/r/11124/#review23810 ----------------------------------------------------------- On July 25, 2013, 1:28 a.m., Brenden Matthews wrote: > > ----------------------------------------------------------- > This is an automatically generated e-mail. To reply, visit: > https://reviews.apache.org/r/11124/ > ----------------------------------------------------------- > > (Updated July 25, 2013, 1:28 a.m.) > > > Review request for mesos. > > > Repository: mesos > > > Description > ------- > > Kill tasks that never properly launch. > > After trying to launch a task tracker, we'll wait up to 5 minutes before > giving up and killing the task. > > Review: https://reviews.apache.org/r/11124 > > > Diffs > ----- > > hadoop/mesos/src/java/org/apache/hadoop/mapred/MesosScheduler.java > 279f84e0f0c43ad3cfd9e4442010e706ee3565d9 > > Diff: https://reviews.apache.org/r/11124/diff/ > > > Testing > ------- > > Used in production at airbnb. > > make -j10 check && cd hadoop && make hadoop-2.0.0-mr1-cdh4.2.1 && make > hadoop-0.20.205.0 && make hadoop-0.20.2-cdh3u3 > > > Thanks, > > Brenden Matthews > >
