snleee commented on a change in pull request #7368:
URL: https://github.com/apache/pinot/pull/7368#discussion_r719048014
##########
File path:
pinot-plugins/pinot-minion-tasks/pinot-minion-builtin-tasks/src/main/java/org/apache/pinot/plugin/minion/tasks/mergerollup/MergeRollupTaskGenerator.java
##########
@@ -339,6 +351,21 @@ public String getTaskType() {
.info("Finished generating task configs for table: {} for task: {},
numTasks: {}", offlineTableName, taskType,
pinotTaskConfigsForTable.size());
}
+
+ // Reset watermarks for invalid tables. This covers the metrics clean up
when the table is removed or the merge
+ // config is added and then removed.
+ LeadControllerManager leadControllerManager =
_clusterInfoAccessor.getLeaderControllerManager();
Review comment:
But, we still need to call `resetWatermark()` for tables that shows up
in the `_mergeRollupWatermarks` but no longer be part of `candidateMergeTables
(merge enabled tables)`.
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