jackjlli commented on a change in pull request #8242:
URL: https://github.com/apache/pinot/pull/8242#discussion_r816178581
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File path:
pinot-controller/src/main/java/org/apache/pinot/controller/helix/core/PinotHelixResourceManager.java
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@@ -2963,6 +2961,25 @@ public String startReplaceSegments(String
tableNameWithType, List<String> segmen
return segmentLineageEntryId;
}
+ // TODO: Add more conflict checks over segmentsTo later. For example, for
APPEND table,
+ // if the new segments from 2 batch jobs are overlapping, we reject
one of job.
+ private static boolean isConflicted(List<String> segmentsFrom, LineageEntry
lineageEntry, TableConfig tableConfig) {
+ if (!segmentsFrom.isEmpty()) {
+ // It's conflicted if there is any overlap between segmentsFrom.
+ return !Collections.disjoint(segmentsFrom,
lineageEntry.getSegmentsFrom());
+ }
+ // For REFRESH table, it's conflicted if both segmentsFrom are empty.
+ if (isRefreshTable(tableConfig)) {
Review comment:
I think we should be okay to just use disjoint() method here since the
purpose is just to find out whether there is some segment names appearing in
multiple segment lineages or not. That doesn't harm to make the logic of the
validation stricter.
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