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HDDS-13428. Recon - Retrigger of build whole NSSummary tree task submission inconsistency. #8793

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Merged
sumitagrawl merged 1 commit into from
Jul 14, 2025
Merged

HDDS-13428. Recon - Retrigger of build whole NSSummary tree task submission inconsistency. #8793

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19 changes: 10 additions & 9 deletions hadoop-ozone/recon/src/main/java/org/apache/hadoop/ozone/recon/ReconUtils.java
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Original file line number Diff line number Diff line change
Expand Up @@ -100,6 +100,13 @@ public class ReconUtils {
ReconUtils.class);

private static AtomicBoolean rebuildTriggered = new AtomicBoolean(false);
private static final ExecutorService NSSUMMARY_REBUILD_EXECUTOR =
Executors.newSingleThreadExecutor(r -> {
Thread t = new Thread(r);
t.setName("RebuildNSSummaryThread");
t.setDaemon(true); // Optional: allows JVM to exit without waiting
return t;
});

public ReconUtils() {
}
Expand Down Expand Up @@ -395,23 +402,17 @@ public static String convertToObjectPathForOpenKeySearch(String prevKeyPrefix,

private static void triggerRebuild(ReconNamespaceSummaryManager reconNamespaceSummaryManager,
ReconOMMetadataManager omMetadataManager) {
ExecutorService executor = Executors.newSingleThreadExecutor(r -> {
Thread t = new Thread(r);
t.setName("RebuildNSSummaryThread");
return t;
});

executor.submit(() -> {
NSSUMMARY_REBUILD_EXECUTOR.submit(() -> {
long startTime = Time.monotonicNow();
log.info("Rebuilding NSSummary tree...");
try {
reconNamespaceSummaryManager.rebuildNSSummaryTree(omMetadataManager);
} finally {
long endTime = Time.monotonicNow();
log.info("NSSummary tree rebuild completed in {} ms.", endTime - startTime);
} catch (Throwable t) {
log.error("NSSummary tree rebuild failed.", t);
}
});
executor.shutdown();
}

/**
Expand Down