Hello! I set up hadoop-1.2.1 on FreeBSD-10/stable with openjdk version 1.7.0_60.
On the first glance it is doing well except one annoying thing: after executing some tasks, tasktracker process starts to eat CPU when idle. Sometimes it is 10-20% (numbers from top(1) output), sometimes it is 100-150%. In tasktrackers's log I see numerious records like this: 2014-06-09 13:08:29,858 INFO org.mortbay.log: org.mortbay.io.nio.SelectorManager$SelectSet@abdcc1c JVM BUG(s) - injecting delay59 times 2014-06-09 13:08:29,859 INFO org.mortbay.log: org.mortbay.io.nio.SelectorManager$SelectSet@abdcc1c JVM BUG(s) - recreating selector 59 times, canceled keys 944 times 2014-06-09 13:09:29,862 INFO org.mortbay.log: org.mortbay.io.nio.SelectorManager$SelectSet@abdcc1c JVM BUG(s) - injecting delay58 times 2014-06-09 13:09:29,862 INFO org.mortbay.log: org.mortbay.io.nio.SelectorManager$SelectSet@abdcc1c JVM BUG(s) - recreating selector 58 times, canceled keys 928 times 2014-06-09 13:10:29,901 INFO org.mortbay.log: org.mortbay.io.nio.SelectorManager$SelectSet@abdcc1c JVM BUG(s) - injecting delay58 times 2014-06-09 13:10:29,901 INFO org.mortbay.log: org.mortbay.io.nio.SelectorManager$SelectSet@abdcc1c JVM BUG(s) - recreating selector 58 times, canceled keys 928 times Is it a known thing? Is there any workaround available? Thanks in advance.
