https://mesosphere.github.io/mesos-dns/docs/naming.html

  

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**Rodrick Brown** / Systems Engineer 

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On Apr 14 2016, at 3:33 am, Stefano Bianchi <[email protected]>
wrote:  

> Im correctly running mesos-dns from marathon and it seems to work.  
But when i launch:

>

> <http://test.marathon.mesos>

>

> (where test is a funning task on marathon)

>

> I get:

>

> curl: (7) Failed connect to test.marathon.mesos:80; Connection refused

>

> Where am i wrong?

>

> Il 13/apr/2016 17:46, "June Taylor"
&lt;[[email protected]](mailto:[email protected])&gt; ha scritto:  

>

>> We are running pyspark against our cluster in coarse-grained mode by
specifying the \--master mesos://host:5050 flag, which properly creates one
task on each node.

>>

>>  

>>

>> However, if the driver is shut down, it appears that these executors become
orphaned_tasks, still consuming resources on the slave, but no longer being
represented in the master's understanding of available resources.

>>

>>  

>>

>> Examining the stdout/stderr shows it exited:

>>

>>  

>>

>> Registered executor on node4

>>

>> Starting task 0

>>

>> sh -c 'cd spark-1*;  ./bin/spark-class
org.apache.spark.executor.CoarseGrainedExecutorBackend --driver-url spark://[C
[email protected]:41563](http://CoarseGrainedScheduler@128
.101.163.200:41563) \--executor-id aa1337b6-43b0-4236-b445-c8ccbfb60506-S2/0
--hostname node4 --cores 31 --app-id
aa1337b6-43b0-4236-b445-c8ccbfb60506-0097'

>>

>> Forked command at 117620

>>

>> Command exited with status 1 (pid: 117620)

>>

>>  

>>

>> But, these executors are remaining on all the slaves.

>>

>>  

>>

>> What can we do to clear them out? Stopping mesos-slave and removing the
full work-dir is successful, but also destroys our other tasks.

>>

>>  

>>

>> Thanks,

>>

>> June Taylor

>>

>> System Administrator, Minnesota Population Center

>>

>> University of Minnesota


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