YuweiXiao commented on a change in pull request #4540:
URL: https://github.com/apache/hudi/pull/4540#discussion_r783929268
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File path:
hudi-hadoop-mr/src/main/java/org/apache/hudi/hadoop/utils/HoodieRealtimeInputFormatUtils.java
##########
@@ -94,16 +94,16 @@
HoodieTableMetaClient metaClient =
partitionsToMetaClient.get(partitionPath);
if (!fsCache.containsKey(metaClient)) {
HoodieLocalEngineContext engineContext = new
HoodieLocalEngineContext(conf);
- HoodieTableFileSystemView fsView =
FileSystemViewManager.createInMemoryFileSystemView(engineContext,
- metaClient, HoodieInputFormatUtils.buildMetadataConfig(conf));
+ HoodieTableFileSystemView fsView =
FileSystemViewManager.createInMemoryFileSystemViewWithTimeline(engineContext,
+ metaClient, HoodieInputFormatUtils.buildMetadataConfig(conf),
metaClient.getActiveTimeline());
fsCache.put(metaClient, fsView);
}
HoodieTableFileSystemView fsView = fsCache.get(metaClient);
String relPartitionPath = FSUtils.getRelativePartitionPath(new
Path(metaClient.getBasePath()), partitionPath);
// Both commit and delta-commits are included - pick the latest
completed one
Option<HoodieInstant> latestCompletedInstant =
-
metaClient.getActiveTimeline().getCommitsTimeline().filterCompletedInstants().lastInstant();
+
metaClient.getActiveTimeline().getWriteTimeline().filterCompletedInstants().lastInstant();
Review comment:
> I also don't understand the fix. can you help throw some light. From
the description in this patch, the gap is, when compaction is on-going and a
new write comes in and completes, it may not be visible to queries. But the fix
here, just includes compaction instants to the list of instants to process. Not
sure if the description matches the fix. or am I missing anything here.
Hey! In `fsView::getLatestMergedFileSlicesBeforeOrOn`, there is a logic
where we check if a file group is under compaction (under construction), so
that we could add logs files generated by concurrent writers. And only passing
a timeline including compactions, this logic could work
(`fsView::fetchMergedFileSlice`).
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