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The following commit(s) were added to refs/heads/4.0 by this push:
new 52a5b88512e KAFKA-19411: Fix deleteAcls bug which allows more
deletions than max records per user op (#19974)
52a5b88512e is described below
commit 52a5b88512ec652f592bca286bd13982b83e3334
Author: Alyssa Huang <[email protected]>
AuthorDate: Tue Jun 24 11:24:50 2025 -0700
KAFKA-19411: Fix deleteAcls bug which allows more deletions than max
records per user op (#19974)
If there are more deletion filters after we initially hit the
`MAX_RECORDS_PER_USER_OP` bound, we will add an additional deletion
record ontop of that for each additional filter.
The current error message returned to the client is not useful either,
adding logic so client doesn't just get `UNKNOWN_SERVER_EXCEPTION` with
no details returned.
---
.../apache/kafka/controller/AclControlManager.java | 13 +++--
.../kafka/controller/AclControlManagerTest.java | 58 ++++++++++++++++++++++
2 files changed, 67 insertions(+), 4 deletions(-)
diff --git
a/metadata/src/main/java/org/apache/kafka/controller/AclControlManager.java
b/metadata/src/main/java/org/apache/kafka/controller/AclControlManager.java
index ca324ab5788..47719734287 100644
--- a/metadata/src/main/java/org/apache/kafka/controller/AclControlManager.java
+++ b/metadata/src/main/java/org/apache/kafka/controller/AclControlManager.java
@@ -176,6 +176,10 @@ public class AclControlManager {
validateFilter(filter);
AclDeleteResult result = deleteAclsForFilter(filter, records);
results.add(result);
+ } catch (BoundedListTooLongException e) {
+ // we do not return partial results here because the fact that
only a portion of the deletions
+ // succeeded can be easily missed due to response size.
instead fail the entire response
+ throw new InvalidRequestException(e.getMessage(), e);
} catch (Throwable e) {
results.add(new
AclDeleteResult(ApiError.fromThrowable(e).exception()));
}
@@ -191,13 +195,14 @@ public class AclControlManager {
StandardAcl acl = entry.getValue();
AclBinding binding = acl.toBinding();
if (filter.matches(binding)) {
- deleted.add(new AclBindingDeleteResult(binding));
- records.add(new ApiMessageAndVersion(
- new RemoveAccessControlEntryRecord().setId(id), (short)
0));
- if (records.size() > MAX_RECORDS_PER_USER_OP) {
+ // check size limitation first before adding additional records
+ if (records.size() >= MAX_RECORDS_PER_USER_OP) {
throw new BoundedListTooLongException("Cannot remove more
than " +
MAX_RECORDS_PER_USER_OP + " acls in a single delete
operation.");
}
+ deleted.add(new AclBindingDeleteResult(binding));
+ records.add(new ApiMessageAndVersion(
+ new RemoveAccessControlEntryRecord().setId(id), (short)
0));
}
}
return new AclDeleteResult(deleted);
diff --git
a/metadata/src/test/java/org/apache/kafka/controller/AclControlManagerTest.java
b/metadata/src/test/java/org/apache/kafka/controller/AclControlManagerTest.java
index 30210fe0157..e93dd9ad1e7 100644
---
a/metadata/src/test/java/org/apache/kafka/controller/AclControlManagerTest.java
+++
b/metadata/src/test/java/org/apache/kafka/controller/AclControlManagerTest.java
@@ -48,6 +48,7 @@ import
org.apache.kafka.server.authorizer.AuthorizableRequestContext;
import org.apache.kafka.server.authorizer.AuthorizationResult;
import org.apache.kafka.server.authorizer.AuthorizerServerInfo;
import org.apache.kafka.server.common.ApiMessageAndVersion;
+import org.apache.kafka.server.mutable.BoundedListTooLongException;
import org.apache.kafka.timeline.SnapshotRegistry;
import org.junit.jupiter.api.Test;
@@ -71,6 +72,7 @@ import static
org.apache.kafka.common.acl.AclPermissionType.ALLOW;
import static org.apache.kafka.common.resource.PatternType.LITERAL;
import static org.apache.kafka.common.resource.PatternType.MATCH;
import static org.apache.kafka.common.resource.ResourceType.TOPIC;
+import static
org.apache.kafka.controller.QuorumController.MAX_RECORDS_PER_USER_OP;
import static
org.apache.kafka.metadata.authorizer.StandardAclWithIdTest.TEST_ACLS;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertFalse;
@@ -366,4 +368,60 @@ public class AclControlManagerTest {
assertEquals(id, ((RemoveAccessControlEntryRecord)
deleteAclResultsBothFilters.records().get(0).message()).id());
assertEquals(2, deleteAclResultsBothFilters.response().size());
}
+
+ @Test
+ public void testDeleteExceedsMaxRecords() {
+ AclControlManager manager = new AclControlManager.Builder().build();
+ MockClusterMetadataAuthorizer authorizer = new
MockClusterMetadataAuthorizer();
+ authorizer.loadSnapshot(manager.idToAcl());
+
+ List<AclBinding> firstCreate = new ArrayList<>();
+ List<AclBinding> secondCreate = new ArrayList<>();
+
+ // create MAX_RECORDS_PER_USER_OP + 2 ACLs
+ for (int i = 0; i < MAX_RECORDS_PER_USER_OP + 2; i++) {
+ StandardAclWithId acl = new StandardAclWithId(Uuid.randomUuid(),
+ new StandardAcl(
+ ResourceType.TOPIC,
+ "mytopic_" + i,
+ PatternType.LITERAL,
+ "User:alice",
+ "127.0.0.1",
+ AclOperation.READ,
+ AclPermissionType.ALLOW));
+
+ // split acl creations between two create requests
+ if (i % 2 == 0) {
+ firstCreate.add(acl.toBinding());
+ } else {
+ secondCreate.add(acl.toBinding());
+ }
+ }
+ ControllerResult<List<AclCreateResult>> firstCreateResult =
manager.createAcls(firstCreate);
+ assertEquals((MAX_RECORDS_PER_USER_OP / 2) + 1,
firstCreateResult.response().size());
+ for (AclCreateResult result : firstCreateResult.response()) {
+ assertTrue(result.exception().isEmpty());
+ }
+
+ ControllerResult<List<AclCreateResult>> secondCreateResult =
manager.createAcls(secondCreate);
+ assertEquals((MAX_RECORDS_PER_USER_OP / 2) + 1,
secondCreateResult.response().size());
+ for (AclCreateResult result : secondCreateResult.response()) {
+ assertTrue(result.exception().isEmpty());
+ }
+
+ RecordTestUtils.replayAll(manager, firstCreateResult.records());
+ RecordTestUtils.replayAll(manager, secondCreateResult.records());
+ assertFalse(manager.idToAcl().isEmpty());
+
+ ArrayList<AclBindingFilter> filters = new ArrayList<>();
+ for (int i = 0; i < MAX_RECORDS_PER_USER_OP + 2; i++) {
+ filters.add(new AclBindingFilter(
+ new ResourcePatternFilter(ResourceType.TOPIC, "mytopic_" + i,
PatternType.LITERAL),
+ AccessControlEntryFilter.ANY));
+ }
+
+ Exception exception = assertThrows(InvalidRequestException.class, ()
-> manager.deleteAcls(filters));
+ assertEquals(BoundedListTooLongException.class,
exception.getCause().getClass());
+ assertEquals("Cannot remove more than " + MAX_RECORDS_PER_USER_OP + "
acls in a single delete operation.", exception.getCause().getMessage());
+ }
}
