klsince commented on code in PR #10089:
URL: https://github.com/apache/pinot/pull/10089#discussion_r1082833141
##########
pinot-core/src/main/java/org/apache/pinot/core/data/manager/BaseTableDataManager.java:
##########
@@ -403,6 +417,16 @@ public void reloadSegment(String segmentName,
IndexLoadingConfig indexLoadingCon
}
}
+ public boolean canReuseExistingDirectoryForReload(SegmentZKMetadata
segmentZKMetadata,
+ String currentSegmentTier, SegmentDirectory segmentDirectory,
IndexLoadingConfig indexLoadingConfig,
+ Schema schema)
+ throws Exception {
+ SegmentDirectoryLoader segmentDirectoryLoader =
+
SegmentDirectoryLoaderRegistry.getSegmentDirectoryLoader(indexLoadingConfig.getSegmentDirectoryLoader());
+ return
!segmentDirectoryLoader.needsTierMigration(segmentZKMetadata.getTier(),
currentSegmentTier)
+ && !ImmutableSegmentLoader.needPreprocess(segmentDirectory,
indexLoadingConfig, schema);
Review Comment:
yes, it also depends on if the segdir loader can migrate tier or not, and it
seems more reasonable to have loader to check this, e.g. both
TierBasedSegmentDirectoryLoader and DefaultSegmentDirectoryLoader returns
SegmentLocalFSDirectory and only the former needs to do tier migration.
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