TsukiokaKogane commented on code in PR #63850:
URL: https://github.com/apache/doris/pull/63850#discussion_r3361730861


##########
fe/fe-core/src/main/java/org/apache/doris/catalog/stream/TableStreamManager.java:
##########
@@ -97,7 +128,129 @@ public Set<Long> getTableStreamIds(DatabaseIf db) {
         return result;
     }
 
-    public void fillTableStreamValuesMetadataResult(List<TRow> dataBatch) {
+    public void cleanupStalePartitionOffsets() {
+        List<Long> staleDbIds = new ArrayList<>();
+        List<Pair<Long, Long>> staleStreamIds = new ArrayList<>();
+        List<PruneTableStreamPartitionOffsetInfo.Entry> pruneEntries = new 
ArrayList<>();
+        for (Map.Entry<Long, Set<Long>> entry : copyDbStreamMap().entrySet()) {
+            Optional<Database> db = 
Env.getCurrentInternalCatalog().getDb(entry.getKey());
+            if (!db.isPresent()) {
+                staleDbIds.add(entry.getKey());
+                continue;
+            }
+            for (Long tableId : entry.getValue()) {
+                Optional<Table> table = db.get().getTable(tableId);
+                if (!table.isPresent()) {
+                    staleStreamIds.add(Pair.of(db.get().getId(), tableId));
+                    continue;
+                }
+                if (!(table.get() instanceof OlapTableStream)) {
+                    staleStreamIds.add(Pair.of(db.get().getId(), tableId));
+                    continue;
+                }
+                cleanupStalePartitionOffsets((OlapTableStream) 
table.get()).ifPresent(pruneEntries::add);
+            }
+        }
+        removeStaleDbAndStream(staleDbIds, staleStreamIds);
+        if (!pruneEntries.isEmpty()) {
+            
Env.getCurrentEnv().getEditLog().logPruneTableStreamPartitionOffsets(
+                    new PruneTableStreamPartitionOffsetInfo(pruneEntries));
+        }
+    }
+
+    private Optional<PruneTableStreamPartitionOffsetInfo.Entry> 
cleanupStalePartitionOffsets(OlapTableStream stream) {
+        if (stream.isDisabled() || stream.isStale()) {
+            return Optional.empty();
+        }
+        OlapTable baseTable = stream.getBaseTableNullable();
+        if (baseTable == null) {
+            return Optional.empty();
+        }
+        Set<Long> validPartitionIds;
+        if (!baseTable.tryReadLock(Table.TRY_LOCK_TIMEOUT_MS, 
TimeUnit.MILLISECONDS)) {
+            if (LOG.isDebugEnabled()) {
+                LOG.debug("skip cleaning stream {} because base table {} read 
lock is busy",
+                        stream.getName(), baseTable.getName());
+            }
+            return Optional.empty();
+        }
+        try {
+            if (baseTable.isDropped) {
+                return Optional.empty();
+            }
+            validPartitionIds = new HashSet<>(baseTable.getPartitionIds());

Review Comment:
   当前不考虑临时分区 只考虑正式分区



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