denis-chudov commented on code in PR #3799:
URL: https://github.com/apache/ignite-3/pull/3799#discussion_r1618785993


##########
modules/transactions/src/main/java/org/apache/ignite/internal/tx/impl/PersistentTxStateVacuumizer.java:
##########
@@ -95,15 +100,29 @@ public CompletableFuture<Set<UUID>> 
vacuumPersistentTxStates(Map<TablePartitionI
                         // timestamp) would be updated there, and then this 
operation would be called from there.
                         // Also, we are going to send the vacuum request only 
to the local node.
                         if (replicaMeta != null && 
localNode.id().equals(replicaMeta.getLeaseholderId())) {
+                            // Filter txns to define those which persistent 
states can be vacuumized.
+                            Set<UUID> filteredTxIds = new HashSet<>();
+
+                            for (VacuumizableTx v : txs) {
+                                if (v.cleanupCompletionTimestamp == null) {

Review Comment:
   This condition and all the checks are located in 
`VolatileTxStateMetaStorage#vacuum` (see 
`persistentVacuumOp.apply(txIds).thenAccept` )
   It removes all tx states successfully processed by persistent vacuumizer, 
taking the cleanup completion timestamp into account.



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