ascherbakoff commented on code in PR #7799:
URL: https://github.com/apache/ignite-3/pull/7799#discussion_r3071213889
##########
modules/transactions/src/main/java/org/apache/ignite/internal/tx/impl/HeapLockManager.java:
##########
@@ -630,7 +625,7 @@ public CompletableFuture<Lock> acquire(UUID txId, LockMode
lockMode) {
// Prevent deadlocks by allowing only younger
transactions to wait.
for (Lock lock : ixlockOwners.values()) {
- if
(deadlockPreventionPolicy.txIdComparator().compare(txId, lock.txId()) < 0) {
+ if (TransactionIds.compare(txId, lock.txId())
< 0) {
Review Comment:
This implementation is correct.
A reversed wait-die policy is currently always used for coarse locks to
avoid deadlocks.
This may be changed in the future.
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