vinodkc commented on code in PR #38781:
URL: https://github.com/apache/spark/pull/38781#discussion_r1032856365
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core/src/main/scala/org/apache/spark/SparkContext.scala:
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@@ -2570,10 +2570,23 @@ class SparkContext(config: SparkConf) extends Logging {
private[spark] def newShuffleId(): Int = nextShuffleId.getAndIncrement()
- private val nextRddId = new AtomicInteger(0)
+ private var nextRddId = new AtomicInteger(0)
/** Register a new RDD, returning its RDD ID */
- private[spark] def newRddId(): Int = nextRddId.getAndIncrement()
+ private[spark] def newRddId(): Int = {
+ var id = nextRddId.getAndIncrement()
+ if (id >= 0) {
+ return id
+ }
+ this.synchronized {
+ id = nextRddId.getAndIncrement()
+ if (id < 0) {
+ nextRddId = new AtomicInteger(0)
+ id = nextRddId.getAndIncrement()
Review Comment:
Can you try this ?
```
nextRddId = new AtomicInteger(1)
id = nextRddId
```
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