Would need the task logs from the slave which the TaskTracker was launched on, to debug this further.
On Wed, Jan 14, 2015 at 1:28 PM, Dan Dong <[email protected]> wrote: > Checked /etc/hosts is correct, master and slave can ssh login each other > by hostname without password, and hadoop runs well without mesos, but it > stucks when running on mesos. > > Cheers, > Dan > > 2015-01-14 15:02 GMT-06:00 Brenden Matthews <[email protected]>: > > At a first glance, it looks like `/etc/hosts` might be set incorrectly and >> it cannot resolve the hostname of the worker. >> >> See here for more: https://wiki.apache.org/hadoop/UnknownHost >> >> On Wed, Jan 14, 2015 at 12:32 PM, Vinod Kone <[email protected]> >> wrote: >> >>> What do the master logs say? >>> >>> On Wed, Jan 14, 2015 at 12:21 PM, Dan Dong <[email protected]> wrote: >>> >>>> Hi, >>>> When I run hadoop jobs on Mesos(0.21.0), the jobs are stuck for ever: >>>> 15/01/14 13:59:30 INFO mapred.FileInputFormat: Total input paths to >>>> process : 8 >>>> 15/01/14 13:59:30 INFO mapred.JobClient: Running job: >>>> job_201501141358_0001 >>>> 15/01/14 13:59:31 INFO mapred.JobClient: map 0% reduce 0% >>>> >>>> From jobtracker log I see: >>>> 2015-01-14 13:59:35,542 INFO org.apache.hadoop.mapred.ResourcePolicy: >>>> Launching task Task_Tracker_0 on http://centos-2.local:31911 with >>>> mapSlots=1 reduceSlots=0 >>>> 2015-01-14 14:04:35,552 WARN org.apache.hadoop.mapred.MesosScheduler: >>>> Tracker http://centos-2.local:31911 failed to launch within 300 >>>> seconds, killing it >>>> >>>> I started manually namenode and jobtracker on master node and datanode >>>> on slave, but I could not see tasktracker started by mesos on slave. Note >>>> that if I ran hadoop directly without Mesos( of course the conf files are >>>> different and tasktracker will be started manually on slave), everything >>>> works fine. Any hints? >>>> >>>> Cheers, >>>> Dan >>>> >>> >>> >> >
