Fix ReclaimedSpaceViaDeletes stats incorrect problem. (apache#3906)

Descriptions of the changes in this PR: https://github.com/apache/bookkeeper/blob/a6387d191f28a59af72f6613b633d6898980a0b0/bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/GarbageCollectorThread.java#L487-L517 At line 501, increases getReclaimedSpaceViaDeletes stats. https://github.com/apache/bookkeeper/blob/a6387d191f28a59af72f6613b633d6898980a0b0/bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/GarbageCollectorThread.java#L734-L767 But at line 755, it didn't increase getReclaimedSpaceViaDeletes stats.
hangc0276 · Apr 22, 2023 · cad1436 · cad1436
1 parent ca33b31
commit cad1436
Showing 1 changed file with 6 additions and 5 deletions.
diff --git a/bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/GarbageCollectorThread.java b/bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/GarbageCollectorThread.java
@@ -751,11 +751,12 @@ protected void extractMetaFromEntryLogs() throws EntryLogMetadataMapException {
                 EntryLogMetadata entryLogMeta = entryLogger.getEntryLogMetadata(entryLogId, throttler);
                 removeIfLedgerNotExists(entryLogMeta);
                 if (entryLogMeta.isEmpty()) {
-                    LOG.info("Entry log file {} is empty, delete it from disk.", Long.toHexString(entryLogId));
-                    entryLogger.removeEntryLog(entryLogId);
-                    // remove it from entrylogmetadata-map if it is present in
-                    // the map
-                    entryLogMetaMap.remove(entryLogId);
+                    // This means the entry log is not associated with any active
+                    // ledgers anymore.
+                    // We can remove this entry log file now.
+                    LOG.info("Deleting entryLogId {} as it has no active ledgers!", entryLogId);
+                    removeEntryLog(entryLogId);
+                    gcStats.getReclaimedSpaceViaDeletes().addCount(entryLogMeta.getTotalSize());
                 } else {
                     entryLogMetaMap.put(entryLogId, entryLogMeta);
                 }