[Bugfix] [0.5.0] Fix spark2 executor stop NPE problem #187
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jerqi
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Later we will add Yarn MiniCluster UT. |
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backport 0.5.0
What changes were proposed in this pull request?
We need to judge heartbeatExecutorService whether is null when we will stop it.
Why are the changes needed?
#177 pr introduce this problem, when we run Spark applications on our cluster, the executor will throw NPE when method
stopis called.Does this PR introduce any user-facing change?
No
How was this patch tested?
Manual test