yihua commented on code in PR #8782:
URL: https://github.com/apache/hudi/pull/8782#discussion_r1204568318
##########
hudi-common/src/main/java/org/apache/hudi/common/table/view/HoodieTableFileSystemView.java:
##########
@@ -199,7 +201,7 @@ protected boolean
isPendingCompactionScheduledForFileId(HoodieFileGroupId fgId)
protected void resetPendingCompactionOperations(Stream<Pair<String,
CompactionOperation>> operations) {
// Build fileId to Pending Compaction Instants
this.fgIdToPendingCompaction =
createFileIdToPendingCompactionMap(operations.map(entry ->
- Pair.of(entry.getValue().getFileGroupId(), Pair.of(entry.getKey(),
entry.getValue()))).collect(Collectors.toMap(Pair::getKey, Pair::getValue)));
+ Pair.of(entry.getValue().getFileGroupId(), Pair.of(entry.getKey(),
entry.getValue()))).collect(Collectors.toConcurrentMap(Pair::getKey,
Pair::getValue)));
}
Review Comment:
@danny0405 "Java stream executes the tasks with single thread by default."
--> This is true.
However, concurrent requests to the timeline server from multiple Spark
executors can trigger concurrent execution of
`ensurePartitionLoadedCorrectly(partitionPath)`, which can cause the bootstrap
index mapping to be concurrently updated.
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