klsince commented on a change in pull request #8242:
URL: https://github.com/apache/pinot/pull/8242#discussion_r815229036
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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:
cc @snleee to help chime in, in case there are any corner cases for
REFRESH table. Otherwise, I'll cool with just using disjoint()
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