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[pinpoint-apm#10640] Add node limit in ServerMap to prevent OOM
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99 changes: 99 additions & 0 deletions
99
.../com/navercorp/pinpoint/web/applicationmap/map/processor/ApplicationLimiterProcessor.java
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/* | ||
* Copyright 2023 NAVER Corp. | ||
* | ||
* Licensed 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. | ||
* | ||
*/ | ||
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package com.navercorp.pinpoint.web.applicationmap.map.processor; | ||
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import com.navercorp.pinpoint.common.server.util.time.Range; | ||
import com.navercorp.pinpoint.web.applicationmap.link.LinkDirection; | ||
import com.navercorp.pinpoint.web.applicationmap.rawdata.LinkData; | ||
import com.navercorp.pinpoint.web.applicationmap.rawdata.LinkDataMap; | ||
import org.apache.logging.log4j.LogManager; | ||
import org.apache.logging.log4j.Logger; | ||
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import javax.annotation.concurrent.GuardedBy; | ||
import java.util.Collection; | ||
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/** | ||
* @author HyunGil Jeong | ||
*/ | ||
public class ApplicationLimiterProcessor implements LinkDataMapProcessor { | ||
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private final Logger logger = LogManager.getLogger(this.getClass()); | ||
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private static final int BYPASS = Integer.MAX_VALUE; | ||
private static final int EMPTY = 0; | ||
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private final int maxLinkSize; | ||
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@GuardedBy("this") | ||
private volatile int counter = 0; | ||
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public ApplicationLimiterProcessor(int maxLinkSize) { | ||
this.maxLinkSize = maxLinkSize; | ||
} | ||
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boolean limitReached() { | ||
return maxLinkSize < counter; | ||
} | ||
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@Override | ||
public LinkDataMap processLinkDataMap(LinkDirection direction, LinkDataMap linkDataMap, Range range) { | ||
final int remain = remain(linkDataMap); | ||
if (remain == BYPASS) { | ||
return linkDataMap; | ||
} | ||
if (remain == EMPTY) { | ||
return new LinkDataMap(); | ||
} | ||
logger.debug("{} Remain {}-->{}, link count {}", direction, linkDataMap, linkDataMap.size(), remain); | ||
Collection<LinkData> linkDataList = linkDataMap.getLinkDataList(); | ||
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LinkDataMap copy = new LinkDataMap(linkDataMap.getTimeWindow()); | ||
int i = 0; | ||
for (LinkData linkData : linkDataList) { | ||
logger.debug("add link {}", linkData); | ||
copy.addLinkData(linkData); | ||
if (++i >= remain) { | ||
logger.debug("break {}/{}", i, remain); | ||
break; | ||
} | ||
} | ||
return copy; | ||
} | ||
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private int remain(LinkDataMap linkDataMap) { | ||
final int size = linkDataMap.size(); | ||
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synchronized (this) { | ||
final int counter = this.counter; | ||
final int current = counter + size; | ||
this.counter += size; | ||
if (this.maxLinkSize >= current) { | ||
return BYPASS; | ||
} | ||
final int remain = this.maxLinkSize - counter; | ||
if (remain > 0) { | ||
return remain; | ||
} | ||
// empty; | ||
return EMPTY; | ||
} | ||
} | ||
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} |
37 changes: 37 additions & 0 deletions
37
...vercorp/pinpoint/web/applicationmap/map/processor/ApplicationLimiterProcessorFactory.java
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/* | ||
* Copyright 2024 NAVER Corp. | ||
* | ||
* Licensed 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. | ||
* | ||
*/ | ||
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package com.navercorp.pinpoint.web.applicationmap.map.processor; | ||
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import java.util.function.Supplier; | ||
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public class ApplicationLimiterProcessorFactory implements Supplier<LinkDataMapProcessor> { | ||
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private final int limit; | ||
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public ApplicationLimiterProcessorFactory(int limit) { | ||
this.limit = limit; | ||
} | ||
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@Override | ||
public LinkDataMapProcessor get() { | ||
if (limit == -1) { | ||
return LinkDataMapProcessor.NO_OP; | ||
} | ||
return new ApplicationLimiterProcessor(limit); | ||
} | ||
} |
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74 changes: 74 additions & 0 deletions
74
.../navercorp/pinpoint/web/applicationmap/map/processor/ApplicationLimiterProcessorTest.java
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/* | ||
* Copyright 2023 NAVER Corp. | ||
* | ||
* Licensed 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. | ||
* | ||
*/ | ||
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package com.navercorp.pinpoint.web.applicationmap.map.processor; | ||
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import com.navercorp.pinpoint.common.server.util.time.Range; | ||
import com.navercorp.pinpoint.common.trace.ServiceType; | ||
import com.navercorp.pinpoint.web.applicationmap.link.LinkDirection; | ||
import com.navercorp.pinpoint.web.applicationmap.rawdata.LinkData; | ||
import com.navercorp.pinpoint.web.applicationmap.rawdata.LinkDataMap; | ||
import com.navercorp.pinpoint.web.vo.Application; | ||
import org.junit.jupiter.api.Assertions; | ||
import org.junit.jupiter.api.Test; | ||
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class ApplicationLimiterProcessorTest { | ||
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Application application1 = new Application("test1", ServiceType.TEST); | ||
Application application2 = new Application("test2", ServiceType.TEST); | ||
Range between = Range.between(10, 100); | ||
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@Test | ||
void limitReached() { | ||
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ApplicationLimiterProcessor processor = new ApplicationLimiterProcessor(2); | ||
LinkDataMap linkDataMap = new LinkDataMap(); | ||
linkDataMap.addLinkData(new LinkData(application1, application1)); | ||
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processor.processLinkDataMap(LinkDirection.IN_LINK, linkDataMap, between); | ||
Assertions.assertFalse(processor.limitReached()); | ||
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processor.processLinkDataMap(LinkDirection.IN_LINK, linkDataMap, between); | ||
Assertions.assertFalse(processor.limitReached()); | ||
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processor.processLinkDataMap(LinkDirection.IN_LINK, linkDataMap, between); | ||
Assertions.assertTrue(processor.limitReached()); | ||
} | ||
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@Test | ||
void limitReached_2() { | ||
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ApplicationLimiterProcessor processor = new ApplicationLimiterProcessor(2); | ||
LinkDataMap linkDataMap = new LinkDataMap(); | ||
linkDataMap.addLinkData(new LinkData(application1, application1)); | ||
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processor.processLinkDataMap(LinkDirection.IN_LINK, linkDataMap, between); | ||
Assertions.assertFalse(processor.limitReached()); | ||
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LinkDataMap linkDataMap2 = new LinkDataMap(); | ||
linkDataMap2.addLinkData(new LinkData(application1, application1)); | ||
linkDataMap2.addLinkData(new LinkData(application2, application2)); | ||
LinkDataMap replaceLink = processor.processLinkDataMap(LinkDirection.IN_LINK, linkDataMap2, between); | ||
Assertions.assertTrue(processor.limitReached()); | ||
Assertions.assertEquals(1, replaceLink.size()); | ||
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processor.processLinkDataMap(LinkDirection.IN_LINK, linkDataMap, between); | ||
Assertions.assertTrue(processor.limitReached()); | ||
} | ||
} |