danny0405 commented on code in PR #19023:
URL: https://github.com/apache/hudi/pull/19023#discussion_r3426407133
##########
hudi-client/hudi-client-common/src/main/java/org/apache/hudi/client/utils/TransactionUtils.java:
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@@ -141,6 +144,28 @@ public static Option<Pair<HoodieInstant, Map<String,
String>>> getLastCompletedT
return getHoodieInstantAndMetaDataPair(metaClient, hoodieInstantOption);
}
+ /**
+ * Get the last completed transaction hoodie instant before the given
instant time.
+ * The returned instant has both requested time and completion time less
than the given instant time,
+ * ensuring it was fully completed before the given instant was created.
+ *
+ * @param metaClient table meta client
+ * @param currentInstantTime the requested time of the current inflight
instant
+ * @return the last completed instant before the given instant, with its
extra metadata
+ */
+ public static Option<Pair<HoodieInstant, Map<String, String>>>
getLastCompletedTxnInstantAndMetadata(
+ HoodieTableMetaClient metaClient, String currentInstantTime) {
+ Option<HoodieInstant> hoodieInstantOption = Option.fromJavaOptional(
+ metaClient.getActiveTimeline().getCommitsTimeline()
+ .filterCompletedInstants()
+ .findInstantsBefore(currentInstantTime)
+ .getInstantsAsStream()
+ .filter(instant -> instant.getCompletionTime() != null
+ && compareTimestamps(instant.getCompletionTime(), LESSER_THAN,
currentInstantTime))
+ .max(Comparator.comparing(HoodieInstant::getCompletionTime)));
Review Comment:
looks fine, let's give it a try.
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