Github user mwws commented on a diff in the pull request:
https://github.com/apache/spark/pull/11249#discussion_r53417927
--- Diff:
streaming/src/main/scala/org/apache/spark/streaming/Checkpoint.scala ---
@@ -41,6 +41,13 @@ class Checkpoint(ssc: StreamingContext, val
checkpointTime: Time)
val checkpointDuration = ssc.checkpointDuration
val pendingTimes = ssc.scheduler.getPendingTimes().toArray
val sparkConfPairs = ssc.conf.getAll
+ @transient val recoverableAccuNameToId = ssc.recoverableAccuNameToId
--- End diff --
I may not describe it clearly, sorry. It used to be inside of `val
trackedAccs = ...`, but it caused serialization issue: it try to serializate
StreamingContext when doing checkpoint. So I move it out of `trackedAccs `
definition explicitly to break the dependency of `ssc`.
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