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From Padmanabhan, Mahesh (contractor) <>
Subject Spark Mesos integration bug?
Date Wed, 26 Nov 2014 15:36:35 GMT

We have been running Spark 1.0.2 with Mesos 0.20.1 in fine grained mode and for the most part
it has been working well.

We have been using mesos://zk://server1:2181,server2:2181,server3:2181/mesos as the spark
master URL and this works great to get the Mesos leader.

Unfortunately, this leader can change while our Spark process is running and Spark seems to
still want to use the old leader instead of querying Mesos for the current leader periodically.
This results in Spark not getting resources from Mesos to launch executors and the driver
just hanging.

I checked the code (link below) and it seems like it simply gets the leader initially and
doesn’t do that periodic check to get the most current leader (it is possible I misread
the code).

Anyone else encounter this issue or know how to resolve it?


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