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https://issues.apache.org/jira/browse/GEODE-8894?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17279513#comment-17279513
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ASF GitHub Bot commented on GEODE-8894:
---------------------------------------
ringles commented on a change in pull request #5978:
URL: https://github.com/apache/geode/pull/5978#discussion_r570404606
##########
File path:
geode-core/src/main/java/org/apache/geode/internal/cache/EntryEventImpl.java
##########
@@ -165,6 +165,9 @@
*/
private byte[] deltaBytes = null;
+ /** If true, causes deltas to trigger recalculation of bucket size **/
+ private boolean forceRecalculateSize = false;
Review comment:
Sorted out; looks like when I attempted this once I grabbed the wrong
delta value at one point. Anyway, it works now without the member variable.
##########
File path:
geode-core/src/distributedTest/java/org/apache/geode/internal/cache/DeltaForceSizingFlagDUnitTest.java
##########
@@ -0,0 +1,995 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
contributor license
+ * agreements. See the NOTICE file distributed with this work for additional
information regarding
+ * copyright ownership. The ASF licenses this file to You under the Apache
License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
License. You may obtain a
+ * copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
distributed under the License
+ * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, either express
+ * or implied. See the License for the specific language governing permissions
and limitations under
+ * the License.
+ */
+package org.apache.geode.internal.cache;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+import java.io.DataInput;
+import java.io.DataOutput;
+import java.io.File;
+import java.io.IOException;
+import java.util.Random;
+import java.util.concurrent.atomic.AtomicInteger;
+
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+
+import org.apache.geode.DataSerializable;
+import org.apache.geode.DataSerializer;
+import org.apache.geode.cache.AttributesFactory;
+import org.apache.geode.cache.Cache;
+import org.apache.geode.cache.DataPolicy;
+import org.apache.geode.cache.EntryEvent;
+import org.apache.geode.cache.EvictionAction;
+import org.apache.geode.cache.EvictionAttributes;
+import org.apache.geode.cache.InterestPolicy;
+import org.apache.geode.cache.PartitionAttributes;
+import org.apache.geode.cache.PartitionAttributesFactory;
+import org.apache.geode.cache.Region;
+import org.apache.geode.cache.Scope;
+import org.apache.geode.cache.SubscriptionAttributes;
+import org.apache.geode.cache.control.ResourceManager;
+import org.apache.geode.cache.partition.PartitionRegionHelper;
+import org.apache.geode.cache.util.CacheListenerAdapter;
+import org.apache.geode.cache.util.ObjectSizer;
+import org.apache.geode.distributed.DistributedMember;
+import org.apache.geode.distributed.internal.InternalDistributedSystem;
+import org.apache.geode.test.dunit.Assert;
+import org.apache.geode.test.dunit.VM;
+import org.apache.geode.test.dunit.rules.ClusterStartupRule;
+import org.apache.geode.test.dunit.rules.MemberVM;
+
+/**
+ * Tests the use of the per-delta "forceRecalculateSize" flag.
+ */
+
+public class DeltaForceSizingFlagDUnitTest {
Review comment:
The parameterization makes it hard to run individual tests, and with the
number of tests significantly reduced, the benefit of this would be marginal.
If we have to add more tests, though, I'll keep it in mind.
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> Allow individual deltas to trigger bucket size recalculation
> ------------------------------------------------------------
>
> Key: GEODE-8894
> URL: https://issues.apache.org/jira/browse/GEODE-8894
> Project: Geode
> Issue Type: New Feature
> Components: core, serialization
> Affects Versions: 1.14.0
> Reporter: Raymond Ingles
> Priority: Major
> Labels: pull-request-available
>
> The Redis subsystem uses Deltas heavily, but by default deltas do not trigger
> an update to the size of their buckets. This leads to incorrect memory usage
> accounting over the long term, especially with the use of Redis commands like
> "APPEND".
> It is possible to set the system property "DELTAS_RECALCULATE_SIZE", but this
> is a global value that would affect the processing of all deltas, including
> non-Redis operations.
> Instead, we will add a new default method to the Delta interface, that can be
> overridden by individual Delta implementations (such as Redis). This will
> trigger the same behavior as DELTAS_RECALCULATE_SIZE, but on a per-delta
> basis. Thus, other Geode operations will not force bucket size recalculations
> unless the global property is set, but Redis statistics will be correct.
> Other types of delta operations may find this useful in the future.
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