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https://issues.apache.org/jira/browse/GEODE-8965?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17298929#comment-17298929
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ASF GitHub Bot commented on GEODE-8965:
---------------------------------------
ringles commented on a change in pull request #6085:
URL: https://github.com/apache/geode/pull/6085#discussion_r591654899
##########
File path:
geode-redis/src/distributedTest/java/org/apache/geode/redis/OutOfMemoryDUnitTest.java
##########
@@ -0,0 +1,225 @@
+/*
+ * 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.redis;
+
+import static org.apache.geode.test.awaitility.GeodeAwaitility.await;
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatNoException;
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
+import static org.assertj.core.api.AssertionsForClassTypes.catchThrowable;
+
+import java.util.Arrays;
+import java.util.Properties;
+import java.util.concurrent.atomic.AtomicInteger;
+
+import org.junit.AfterClass;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.ClassRule;
+import org.junit.Rule;
+import org.junit.Test;
+import redis.clients.jedis.Jedis;
+import redis.clients.jedis.exceptions.JedisException;
+
+import org.apache.geode.test.awaitility.GeodeAwaitility;
+import org.apache.geode.test.dunit.IgnoredException;
+import org.apache.geode.test.dunit.rules.MemberVM;
+import org.apache.geode.test.dunit.rules.RedisClusterStartupRule;
+import org.apache.geode.test.junit.rules.ExecutorServiceRule;
+
+public class OutOfMemoryDUnitTest {
+
+ @ClassRule
+ public static RedisClusterStartupRule clusterStartUp = new
RedisClusterStartupRule(4);
+
+ @Rule
+ public ExecutorServiceRule executor = new ExecutorServiceRule();
+
+ private static final String expectedEx = "Member: .*? above .*? critical
threshold";
+ private static final String FILLER_KEY = "fillerKey-";
+ private static final String PRESSURE_KEY = "pressureKey-";
+ private static final String LOCAL_HOST = "127.0.0.1";
+ private static final int KEY_TTL_SECONDS = 10;
+ private static final int MAX_ITERATION_COUNT = 4000;
+ private static final int LARGE_VALUE_SIZE = 128 * 1024;
+ private static final int PRESSURE_VALUE_SIZE = 4 * 1024;
+ private static final int JEDIS_TIMEOUT =
+ Math.toIntExact(GeodeAwaitility.getTimeout().toMillis());
+ private static Jedis jedis1;
+ private static Jedis jedis2;
+
+ private static MemberVM server1;
+ private static MemberVM server2;
+
+ private static Thread memoryPressureThread;
+
+ @BeforeClass
+ public static void classSetup() {
+ IgnoredException.addIgnoredException(expectedEx);
+
+ MemberVM locator = clusterStartUp.startLocatorVM(0);
+
+ Properties serverProperties = new Properties();
+ server1 = clusterStartUp.startRedisVM(1, serverProperties,
locator.getPort());
+ server2 = clusterStartUp.startRedisVM(2, serverProperties,
locator.getPort());
+
+ server1.getVM().invoke(() ->
RedisClusterStartupRule.getCache().getResourceManager()
+ .setCriticalHeapPercentage(5.0F));
+ server2.getVM().invoke(() ->
RedisClusterStartupRule.getCache().getResourceManager()
+ .setCriticalHeapPercentage(5.0F));
+
+ int redisServerPort1 = clusterStartUp.getRedisPort(1);
+ int redisServerPort2 = clusterStartUp.getRedisPort(2);
+
+ jedis1 = new Jedis(LOCAL_HOST, redisServerPort1, JEDIS_TIMEOUT);
+ jedis2 = new Jedis(LOCAL_HOST, redisServerPort2, JEDIS_TIMEOUT);
+ }
+
+ @Before
+ public void testSetup() {
+ jedis1.flushAll();
+ }
+
+ @AfterClass
+ public static void tearDown() {
+ jedis1.disconnect();
+ jedis2.disconnect();
+
+ server1.stop();
+ server2.stop();
+ }
+
+ @Test
+ public void shouldReturnOOMError_forWriteOperations_whenThresholdReached()
+ throws InterruptedException {
+ IgnoredException.addIgnoredException(expectedEx);
+ IgnoredException.addIgnoredException("LowMemoryException");
+
+ memoryPressureThread = new Thread(makeMemoryPressureRunnable());
+ memoryPressureThread.start();
+
+ fillMemory(jedis2, false);
+
+ assertThatThrownBy(() -> jedis2.set("oneMoreKey", makeLongStringValue(2 *
LARGE_VALUE_SIZE)))
+ .hasMessageContaining("OOM");
+
+ memoryPressureThread.interrupt();
+ memoryPressureThread.join();
+ }
+
+ @Test
+ public void shouldAllowDeleteOperations_afterThresholdReached() throws
InterruptedException {
+ IgnoredException.addIgnoredException(expectedEx);
+ IgnoredException.addIgnoredException("LowMemoryException");
+
+ fillMemory(jedis2, false);
+
+ assertThatNoException().isThrownBy(() -> jedis2.del(FILLER_KEY + 1));
+ }
+
+ @Test
+ public void shouldAllowExpiration_afterThresholdReached() {
+ IgnoredException.addIgnoredException(expectedEx);
+ IgnoredException.addIgnoredException("LowMemoryException");
+
+ fillMemory(jedis2, true);
+
+ await().untilAsserted(() -> {
+ assertThat(jedis2.ttl(FILLER_KEY + 1)).isEqualTo(-2);
+ });
+ }
Review comment:
Technically for those tests, we mostly care that we get to a state we
can execute such commands after the first OOM. But it certainly can't hurt, so
I've add the memory-pressure thread to the other tests, too.
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> Implement Redis "noevict" policy for Geode Redis
> ------------------------------------------------
>
> Key: GEODE-8965
> URL: https://issues.apache.org/jira/browse/GEODE-8965
> Project: Geode
> Issue Type: New Feature
> Components: redis
> Reporter: Raymond Ingles
> Assignee: Raymond Ingles
> Priority: Major
> Labels: blocks-1.14.0, pull-request-available
>
> Redis supports the "noevict" eviction policy. When this is selected, Redis
> returns an OOM error when commands that consume new memory are attempted. New
> data cannot be written to the cache until either TTL expiration or explicit
> deletion of keys has freed enough memory to allow write operations again.
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