[SPARK-21928][CORE] Set classloader on SerializerManager's private kryo #19313
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We have to make sure that SerializerManager's private instance of kryo also uses the right classloader, regardless of the current thread classloader. In particular, this fixes serde during remote cache fetches, as those occur in netty threads. Manual tests & existing suite via jenkins. I haven't been able to reproduce this is in a unit test, because when a remote RDD partition can be fetched, there is a warning message and then the partition is just recomputed locally. I manually verified the warning message is no longer present. Author: Imran Rashid <[email protected]> Closes apache#19280 from squito/SPARK-21928_ser_classloader. (cherry picked from commit b75bd17)
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Test build #82049 has finished for PR 19313 at commit
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Merging to 2.1. |
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(Please close the PR manually.) |
asfgit
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Sep 21, 2017
## What changes were proposed in this pull request? We have to make sure that SerializerManager's private instance of kryo also uses the right classloader, regardless of the current thread classloader. In particular, this fixes serde during remote cache fetches, as those occur in netty threads. ## How was this patch tested? Manual tests & existing suite via jenkins. I haven't been able to reproduce this is in a unit test, because when a remote RDD partition can be fetched, there is a warning message and then the partition is just recomputed locally. I manually verified the warning message is no longer present. (cherry picked from commit b75bd17) Author: Imran Rashid <[email protected]> Closes #19313 from squito/SPARK-21928_2.1.
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thanks @vanzin |
jzhuge
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to jzhuge/spark
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Aug 20, 2018
We have to make sure that SerializerManager's private instance of kryo also uses the right classloader, regardless of the current thread classloader. In particular, this fixes serde during remote cache fetches, as those occur in netty threads. Manual tests & existing suite via jenkins. I haven't been able to reproduce this is in a unit test, because when a remote RDD partition can be fetched, there is a warning message and then the partition is just recomputed locally. I manually verified the warning message is no longer present. (cherry picked from commit b75bd17) Author: Imran Rashid <[email protected]> Closes apache#19313 from squito/SPARK-21928_2.1.
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What changes were proposed in this pull request?
We have to make sure that SerializerManager's private instance of
kryo also uses the right classloader, regardless of the current thread
classloader. In particular, this fixes serde during remote cache
fetches, as those occur in netty threads.
How was this patch tested?
Manual tests & existing suite via jenkins. I haven't been able to reproduce this is in a unit test, because when a remote RDD partition can be fetched, there is a warning message and then the partition is just recomputed locally. I manually verified the warning message is no longer present.
(cherry picked from commit b75bd17)