danny0405 commented on code in PR #8782:
URL: https://github.com/apache/hudi/pull/8782#discussion_r1206162895
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hudi-common/src/main/java/org/apache/hudi/common/table/view/HoodieTableFileSystemView.java:
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@@ -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:
The `fgIdToBootstrapBaseFile` is initialized once in
`AbstractTableFileSystemView#addFilesToView` within with we use the Java
`stream#map` for updating, the `stream#map` is executed sequencially in single
thread, so where does the concurrent updating come from?
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