Sergey created SPARK-19900:
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Summary: [Standalone] Master registers application again when
driver relaunched
Key: SPARK-19900
URL: https://issues.apache.org/jira/browse/SPARK-19900
Project: Spark
Issue Type: Bug
Components: Deploy, Spark Core
Affects Versions: 1.6.2
Environment: Centos 6.5, spark standalone
Reporter: Sergey
I've found some problems when node, where driver is running, has unstable
network. A situation is possible when two identical applications are running on
a cluster.
*Steps to Reproduce:*
# prepare 3 node. One for the spark master and two for the spark workers.
# submit an application with parameter spark.driver.supervise = true
# go to the node where driver is running (for example spark-worker-1) and close
7077 port
{code}
# iptables -A OUTPUT -p tcp --dport 7077 -j DROP
{code}
# wait more 60 seconds
# look at the spark master UI
There are two spark applications and one driver. The new application has
WAITING state and the second application has RUNNING state. Driver has RUNNING
or RELAUNCHING state (It depends on the resources available, as I understand
it) and it launched on other node (for example spark-worker-2)
# open the port
{code}
# iptables -D OUTPUT -p tcp --dport 7077 -j DROP
{code}
# look an the spark UI again
There are no changes
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