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Posted to notifications@skywalking.apache.org by GitBox <gi...@apache.org> on 2018/04/24 07:35:37 UTC
[GitHub] nikitap492 closed pull request #1099: Reduced amount of the guava
cache services code
nikitap492 closed pull request #1099: Reduced amount of the guava cache services code
URL: https://github.com/apache/incubator-skywalking/pull/1099
This is a PR merged from a forked repository.
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diff --git a/apm-collector/apm-collector-cache/collector-cache-guava-provider/src/main/java/org/apache/skywalking/apm/collector/cache/guava/CacheUtils.java b/apm-collector/apm-collector-cache/collector-cache-guava-provider/src/main/java/org/apache/skywalking/apm/collector/cache/guava/CacheUtils.java
new file mode 100644
index 000000000..3a5a714d5
--- /dev/null
+++ b/apm-collector/apm-collector-cache/collector-cache-guava-provider/src/main/java/org/apache/skywalking/apm/collector/cache/guava/CacheUtils.java
@@ -0,0 +1,59 @@
+/*
+ * 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.skywalking.apm.collector.cache.guava;
+
+
+import com.google.common.cache.Cache;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.Optional;
+import java.util.function.Supplier;
+
+import static java.util.Objects.isNull;
+import static java.util.Objects.nonNull;
+
+/**
+ * @author nikitap492
+ */
+public class CacheUtils {
+ private static final Logger logger = LoggerFactory.getLogger(CacheUtils.class);
+
+ public static <K, V> V retrieve(Cache<K, V> cache, K key, Supplier<V> supplier) {
+ V value = null;
+ try {
+ value = cache.get(key, supplier::get);
+ } catch (Throwable e) {
+ logger.error(e.getMessage(), e);
+ }
+
+ if (isNull(value)) {
+ value = supplier.get();
+ if (nonNull(value)) {
+ cache.put(key, value);
+ }
+ }
+
+ return value;
+ }
+
+ public static <K, V> V retrieveOrElse(Cache<K, V> cache, K key, Supplier<V> supplier, V defaultValue) {
+ return Optional.ofNullable(retrieve(cache, key, supplier)).orElse(defaultValue);
+ }
+}
diff --git a/apm-collector/apm-collector-cache/collector-cache-guava-provider/src/main/java/org/apache/skywalking/apm/collector/cache/guava/service/ApplicationCacheGuavaService.java b/apm-collector/apm-collector-cache/collector-cache-guava-provider/src/main/java/org/apache/skywalking/apm/collector/cache/guava/service/ApplicationCacheGuavaService.java
index 0de697b79..28ea49d1e 100644
--- a/apm-collector/apm-collector-cache/collector-cache-guava-provider/src/main/java/org/apache/skywalking/apm/collector/cache/guava/service/ApplicationCacheGuavaService.java
+++ b/apm-collector/apm-collector-cache/collector-cache-guava-provider/src/main/java/org/apache/skywalking/apm/collector/cache/guava/service/ApplicationCacheGuavaService.java
@@ -20,25 +20,23 @@
import com.google.common.cache.Cache;
import com.google.common.cache.CacheBuilder;
+import org.apache.skywalking.apm.collector.cache.guava.CacheUtils;
import org.apache.skywalking.apm.collector.cache.service.ApplicationCacheService;
import org.apache.skywalking.apm.collector.core.module.ModuleManager;
import org.apache.skywalking.apm.collector.storage.StorageModule;
import org.apache.skywalking.apm.collector.storage.dao.cache.IApplicationCacheDAO;
import org.apache.skywalking.apm.collector.storage.table.register.Application;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
import static java.util.Objects.isNull;
-import static java.util.Objects.nonNull;
/**
* @author peng-yongsheng
*/
public class ApplicationCacheGuavaService implements ApplicationCacheService {
- private final Logger logger = LoggerFactory.getLogger(ApplicationCacheGuavaService.class);
-
private final Cache<String, Integer> codeCache = CacheBuilder.newBuilder().initialCapacity(100).maximumSize(1000).build();
+ private final Cache<Integer, Application> applicationCache = CacheBuilder.newBuilder().maximumSize(1000).build();
+ private final Cache<Integer, Integer> addressIdCache = CacheBuilder.newBuilder().maximumSize(1000).build();
private final ModuleManager moduleManager;
private IApplicationCacheDAO applicationCacheDAO;
@@ -55,57 +53,19 @@ private IApplicationCacheDAO getApplicationCacheDAO() {
}
@Override public int getApplicationIdByCode(String applicationCode) {
- int applicationId = 0;
- try {
- applicationId = codeCache.get(applicationCode, () -> getApplicationCacheDAO().getApplicationIdByCode(applicationCode));
- } catch (Throwable e) {
- logger.error(e.getMessage(), e);
- }
-
- if (applicationId == 0) {
- applicationId = getApplicationCacheDAO().getApplicationIdByCode(applicationCode);
- if (applicationId != 0) {
- codeCache.put(applicationCode, applicationId);
- }
- }
- return applicationId;
+ return CacheUtils.retrieveOrElse(codeCache, applicationCode,
+ () -> getApplicationCacheDAO().getApplicationIdByCode(applicationCode), 0);
}
- private final Cache<Integer, Application> applicationCache = CacheBuilder.newBuilder().maximumSize(1000).build();
-
@Override public Application getApplicationById(int applicationId) {
- Application application = null;
- try {
- application = applicationCache.get(applicationId, () -> getApplicationCacheDAO().getApplication(applicationId));
- } catch (Throwable e) {
- logger.error(e.getMessage(), e);
- }
-
- if (isNull(application)) {
- application = getApplicationCacheDAO().getApplication(applicationId);
- if (nonNull(application)) {
- applicationCache.put(applicationId, application);
- }
- }
- return application;
+ return CacheUtils.retrieve(applicationCache, applicationId,
+ () -> getApplicationCacheDAO().getApplication(applicationId));
}
- private final Cache<Integer, Integer> addressIdCache = CacheBuilder.newBuilder().maximumSize(1000).build();
- @Override public int getApplicationIdByAddressId(int addressId) {
- int applicationId = 0;
- try {
- applicationId = addressIdCache.get(addressId, () -> getApplicationCacheDAO().getApplicationIdByAddressId(addressId));
- } catch (Throwable e) {
- logger.error(e.getMessage(), e);
- }
- if (applicationId == 0) {
- applicationId = getApplicationCacheDAO().getApplicationIdByAddressId(addressId);
- if (applicationId != 0) {
- addressIdCache.put(addressId, applicationId);
- }
- }
- return applicationId;
+ @Override public int getApplicationIdByAddressId(int addressId) {
+ return CacheUtils.retrieveOrElse(addressIdCache, addressId,
+ () -> getApplicationCacheDAO().getApplicationIdByAddressId(addressId), 0);
}
}
diff --git a/apm-collector/apm-collector-cache/collector-cache-guava-provider/src/main/java/org/apache/skywalking/apm/collector/cache/guava/service/InstanceCacheGuavaService.java b/apm-collector/apm-collector-cache/collector-cache-guava-provider/src/main/java/org/apache/skywalking/apm/collector/cache/guava/service/InstanceCacheGuavaService.java
index 8d87a4a4a..a8984352e 100644
--- a/apm-collector/apm-collector-cache/collector-cache-guava-provider/src/main/java/org/apache/skywalking/apm/collector/cache/guava/service/InstanceCacheGuavaService.java
+++ b/apm-collector/apm-collector-cache/collector-cache-guava-provider/src/main/java/org/apache/skywalking/apm/collector/cache/guava/service/InstanceCacheGuavaService.java
@@ -20,13 +20,12 @@
import com.google.common.cache.Cache;
import com.google.common.cache.CacheBuilder;
+import org.apache.skywalking.apm.collector.cache.guava.CacheUtils;
import org.apache.skywalking.apm.collector.cache.service.InstanceCacheService;
import org.apache.skywalking.apm.collector.core.module.ModuleManager;
import org.apache.skywalking.apm.collector.core.util.Const;
import org.apache.skywalking.apm.collector.storage.StorageModule;
import org.apache.skywalking.apm.collector.storage.dao.cache.IInstanceCacheDAO;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
import static java.util.Objects.isNull;
@@ -35,8 +34,6 @@
*/
public class InstanceCacheGuavaService implements InstanceCacheService {
- private final Logger logger = LoggerFactory.getLogger(InstanceCacheGuavaService.class);
-
private final Cache<Integer, Integer> applicationIdCache = CacheBuilder.newBuilder().initialCapacity(100).maximumSize(5000).build();
private final Cache<String, Integer> agentUUIDCache = CacheBuilder.newBuilder().initialCapacity(100).maximumSize(5000).build();
@@ -58,57 +55,19 @@ private IInstanceCacheDAO getInstanceCacheDAO() {
}
@Override public int getApplicationId(int instanceId) {
- int applicationId = 0;
- try {
- applicationId = applicationIdCache.get(instanceId, () -> getInstanceCacheDAO().getApplicationId(instanceId));
- } catch (Throwable e) {
- logger.error(e.getMessage(), e);
- }
-
- if (applicationId == 0) {
- applicationId = getInstanceCacheDAO().getApplicationId(instanceId);
- if (applicationId != 0) {
- applicationIdCache.put(instanceId, applicationId);
- }
- }
- return applicationId;
+ return CacheUtils.retrieveOrElse(applicationIdCache, instanceId,
+ () -> getInstanceCacheDAO().getApplicationId(instanceId), 0);
}
@Override public int getInstanceIdByAgentUUID(int applicationId, String agentUUID) {
String key = applicationId + Const.ID_SPLIT + agentUUID;
-
- int instanceId = 0;
- try {
- instanceId = agentUUIDCache.get(key, () -> getInstanceCacheDAO().getInstanceIdByAgentUUID(applicationId, agentUUID));
- } catch (Throwable e) {
- logger.error(e.getMessage(), e);
- }
-
- if (instanceId == 0) {
- instanceId = getInstanceCacheDAO().getInstanceIdByAgentUUID(applicationId, agentUUID);
- if (applicationId != 0) {
- agentUUIDCache.put(key, instanceId);
- }
- }
- return instanceId;
+ return CacheUtils.retrieveOrElse(agentUUIDCache, key,
+ () -> getInstanceCacheDAO().getInstanceIdByAgentUUID(applicationId, agentUUID), 0);
}
@Override public int getInstanceIdByAddressId(int applicationId, int addressId) {
String key = applicationId + Const.ID_SPLIT + addressId;
-
- int instanceId = 0;
- try {
- instanceId = addressIdCache.get(key, () -> getInstanceCacheDAO().getInstanceIdByAddressId(applicationId, addressId));
- } catch (Throwable e) {
- logger.error(e.getMessage(), e);
- }
-
- if (instanceId == 0) {
- instanceId = getInstanceCacheDAO().getInstanceIdByAddressId(applicationId, addressId);
- if (applicationId != 0) {
- addressIdCache.put(key, instanceId);
- }
- }
- return instanceId;
+ return CacheUtils.retrieveOrElse(addressIdCache, key,
+ () -> getInstanceCacheDAO().getInstanceIdByAddressId(applicationId, addressId), 0);
}
}
diff --git a/apm-collector/apm-collector-cache/collector-cache-guava-provider/src/main/java/org/apache/skywalking/apm/collector/cache/guava/service/NetworkAddressCacheGuavaService.java b/apm-collector/apm-collector-cache/collector-cache-guava-provider/src/main/java/org/apache/skywalking/apm/collector/cache/guava/service/NetworkAddressCacheGuavaService.java
index 3fe79d718..75a957573 100644
--- a/apm-collector/apm-collector-cache/collector-cache-guava-provider/src/main/java/org/apache/skywalking/apm/collector/cache/guava/service/NetworkAddressCacheGuavaService.java
+++ b/apm-collector/apm-collector-cache/collector-cache-guava-provider/src/main/java/org/apache/skywalking/apm/collector/cache/guava/service/NetworkAddressCacheGuavaService.java
@@ -20,14 +20,12 @@
import com.google.common.cache.Cache;
import com.google.common.cache.CacheBuilder;
+import org.apache.skywalking.apm.collector.cache.guava.CacheUtils;
import org.apache.skywalking.apm.collector.cache.service.NetworkAddressCacheService;
import org.apache.skywalking.apm.collector.core.module.ModuleManager;
-import org.apache.skywalking.apm.collector.core.util.StringUtils;
import org.apache.skywalking.apm.collector.storage.StorageModule;
import org.apache.skywalking.apm.collector.storage.dao.cache.INetworkAddressCacheDAO;
import org.apache.skywalking.apm.collector.storage.table.register.NetworkAddress;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
import static java.util.Objects.isNull;
@@ -36,9 +34,8 @@
*/
public class NetworkAddressCacheGuavaService implements NetworkAddressCacheService {
- private final Logger logger = LoggerFactory.getLogger(NetworkAddressCacheGuavaService.class);
-
private final Cache<String, Integer> addressCache = CacheBuilder.newBuilder().initialCapacity(1000).maximumSize(5000).build();
+ private final Cache<Integer, NetworkAddress> idCache = CacheBuilder.newBuilder().initialCapacity(1000).maximumSize(5000).build();
private final ModuleManager moduleManager;
private INetworkAddressCacheDAO networkAddressCacheDAO;
@@ -55,39 +52,12 @@ private INetworkAddressCacheDAO getNetworkAddressCacheDAO() {
}
public int getAddressId(String networkAddress) {
- int addressId = 0;
- try {
- addressId = addressCache.get(networkAddress, () -> getNetworkAddressCacheDAO().getAddressId(networkAddress));
-
- if (addressId == 0) {
- addressId = getNetworkAddressCacheDAO().getAddressId(networkAddress);
- if (addressId != 0) {
- addressCache.put(networkAddress, addressId);
- }
- }
- } catch (Throwable e) {
- logger.error(e.getMessage(), e);
- }
-
- return addressId;
+ return CacheUtils.retrieveOrElse(addressCache, networkAddress,
+ () -> getNetworkAddressCacheDAO().getAddressId(networkAddress), 0);
}
- private final Cache<Integer, NetworkAddress> idCache = CacheBuilder.newBuilder().initialCapacity(1000).maximumSize(5000).build();
public NetworkAddress getAddress(int addressId) {
- NetworkAddress networkAddress = null;
- try {
- networkAddress = idCache.get(addressId, () -> getNetworkAddressCacheDAO().getAddressById(addressId));
- } catch (Throwable e) {
- logger.error(e.getMessage(), e);
- }
-
- if (isNull(networkAddress)) {
- networkAddress = getNetworkAddressCacheDAO().getAddressById(addressId);
- if (StringUtils.isNotEmpty(networkAddress)) {
- idCache.put(addressId, networkAddress);
- }
- }
- return networkAddress;
+ return CacheUtils.retrieve(idCache, addressId, () -> getNetworkAddressCacheDAO().getAddressById(addressId));
}
}
diff --git a/apm-collector/apm-collector-cache/collector-cache-guava-provider/src/main/java/org/apache/skywalking/apm/collector/cache/guava/service/ServiceIdCacheGuavaService.java b/apm-collector/apm-collector-cache/collector-cache-guava-provider/src/main/java/org/apache/skywalking/apm/collector/cache/guava/service/ServiceIdCacheGuavaService.java
index 3cae23466..f1639d158 100644
--- a/apm-collector/apm-collector-cache/collector-cache-guava-provider/src/main/java/org/apache/skywalking/apm/collector/cache/guava/service/ServiceIdCacheGuavaService.java
+++ b/apm-collector/apm-collector-cache/collector-cache-guava-provider/src/main/java/org/apache/skywalking/apm/collector/cache/guava/service/ServiceIdCacheGuavaService.java
@@ -20,13 +20,12 @@
import com.google.common.cache.Cache;
import com.google.common.cache.CacheBuilder;
+import org.apache.skywalking.apm.collector.cache.guava.CacheUtils;
import org.apache.skywalking.apm.collector.cache.service.ServiceIdCacheService;
import org.apache.skywalking.apm.collector.core.module.ModuleManager;
import org.apache.skywalking.apm.collector.core.util.Const;
import org.apache.skywalking.apm.collector.storage.StorageModule;
import org.apache.skywalking.apm.collector.storage.dao.cache.IServiceNameCacheDAO;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
import static java.util.Objects.isNull;
@@ -35,8 +34,6 @@
*/
public class ServiceIdCacheGuavaService implements ServiceIdCacheService {
- private final Logger logger = LoggerFactory.getLogger(ServiceIdCacheGuavaService.class);
-
private final Cache<String, Integer> serviceIdCache = CacheBuilder.newBuilder().maximumSize(10000).build();
private final ModuleManager moduleManager;
@@ -54,20 +51,8 @@ private IServiceNameCacheDAO getServiceNameCacheDAO() {
}
@Override public int get(int applicationId, int srcSpanType, String serviceName) {
- int serviceId = 0;
String id = applicationId + Const.ID_SPLIT + srcSpanType + Const.ID_SPLIT + serviceName;
- try {
- serviceId = serviceIdCache.get(id, () -> getServiceNameCacheDAO().getServiceId(applicationId, srcSpanType, serviceName));
- } catch (Throwable e) {
- logger.error(e.getMessage(), e);
- }
-
- if (serviceId == 0) {
- serviceId = getServiceNameCacheDAO().getServiceId(applicationId, srcSpanType, serviceName);
- if (serviceId != 0) {
- serviceIdCache.put(id, serviceId);
- }
- }
- return serviceId;
+ return CacheUtils.retrieveOrElse(serviceIdCache, id,
+ () -> getServiceNameCacheDAO().getServiceId(applicationId, srcSpanType, serviceName), 0);
}
}
diff --git a/apm-collector/apm-collector-cache/collector-cache-guava-provider/src/main/java/org/apache/skywalking/apm/collector/cache/guava/service/ServiceNameCacheGuavaService.java b/apm-collector/apm-collector-cache/collector-cache-guava-provider/src/main/java/org/apache/skywalking/apm/collector/cache/guava/service/ServiceNameCacheGuavaService.java
index c58781558..e6a1a2d2c 100644
--- a/apm-collector/apm-collector-cache/collector-cache-guava-provider/src/main/java/org/apache/skywalking/apm/collector/cache/guava/service/ServiceNameCacheGuavaService.java
+++ b/apm-collector/apm-collector-cache/collector-cache-guava-provider/src/main/java/org/apache/skywalking/apm/collector/cache/guava/service/ServiceNameCacheGuavaService.java
@@ -20,24 +20,20 @@
import com.google.common.cache.Cache;
import com.google.common.cache.CacheBuilder;
+import org.apache.skywalking.apm.collector.cache.guava.CacheUtils;
import org.apache.skywalking.apm.collector.cache.service.ServiceNameCacheService;
import org.apache.skywalking.apm.collector.core.module.ModuleManager;
import org.apache.skywalking.apm.collector.storage.StorageModule;
import org.apache.skywalking.apm.collector.storage.dao.cache.IServiceNameCacheDAO;
import org.apache.skywalking.apm.collector.storage.table.register.ServiceName;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
import static java.util.Objects.isNull;
-import static java.util.Objects.nonNull;
/**
* @author peng-yongsheng
*/
public class ServiceNameCacheGuavaService implements ServiceNameCacheService {
- private final Logger logger = LoggerFactory.getLogger(ServiceNameCacheGuavaService.class);
-
private final Cache<Integer, ServiceName> serviceCache = CacheBuilder.newBuilder().maximumSize(10000).build();
private final ModuleManager moduleManager;
@@ -55,20 +51,6 @@ private IServiceNameCacheDAO getServiceNameCacheDAO() {
}
public ServiceName get(int serviceId) {
- ServiceName serviceName = null;
- try {
- serviceName = serviceCache.get(serviceId, () -> getServiceNameCacheDAO().get(serviceId));
- } catch (Throwable e) {
- logger.error(e.getMessage(), e);
- }
-
- if (isNull(serviceName)) {
- serviceName = getServiceNameCacheDAO().get(serviceId);
- if (nonNull(serviceName)) {
- serviceCache.put(serviceId, serviceName);
- }
- }
-
- return serviceName;
+ return CacheUtils.retrieve(serviceCache, serviceId, () -> getServiceNameCacheDAO().get(serviceId));
}
}
diff --git a/apm-collector/apm-collector-cache/collector-cache-guava-provider/src/test/java/org/apache/skywalking/apm/collector/cache/guava/CacheUtilsUnitTest.java b/apm-collector/apm-collector-cache/collector-cache-guava-provider/src/test/java/org/apache/skywalking/apm/collector/cache/guava/CacheUtilsUnitTest.java
new file mode 100644
index 000000000..b4337595f
--- /dev/null
+++ b/apm-collector/apm-collector-cache/collector-cache-guava-provider/src/test/java/org/apache/skywalking/apm/collector/cache/guava/CacheUtilsUnitTest.java
@@ -0,0 +1,81 @@
+/*
+ * 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.skywalking.apm.collector.cache.guava;
+
+import com.google.common.cache.Cache;
+import com.google.common.cache.CacheBuilder;
+import org.junit.Before;
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+
+
+/**
+ * @author nikitap492
+ */
+public class CacheUtilsUnitTest {
+
+ private Cache<Integer, String> testCache = CacheBuilder.newBuilder().maximumSize(10).build();
+
+ private Cache<String, Integer> stringCache = CacheBuilder.newBuilder().maximumSize(10).build();
+
+ @Before
+ public void init() {
+ testCache.put(5, "five");
+ }
+
+ @Test
+ public void retrieve() {
+ String value = CacheUtils.retrieve(testCache, 5, () -> null);
+ assertEquals(value, "five");
+
+ value = CacheUtils.retrieve(testCache, 10, () -> "ten");
+ assertEquals(value, "ten");
+ assertEquals(value, testCache.getIfPresent(10)); //put into the cache
+
+ }
+
+ @Test
+ public void retrieveOrElse() {
+ String value = CacheUtils.retrieveOrElse(testCache, 12, () -> null, "twelve");
+ assertEquals(value, "twelve");
+ }
+
+ @Test
+ public void retrieveWhenFirstTimeNotFound() {
+ ApplicationDAO dao = new ApplicationDAO();
+
+ Integer value = CacheUtils.retrieveOrElse(stringCache, "test", dao::getIdByCode, 0);
+ assertEquals(value.intValue(), 0);
+
+ dao.id = 10;
+
+ value = CacheUtils.retrieveOrElse(stringCache, "test", dao::getIdByCode, 0);
+ assertEquals(value.intValue(), 10);
+ }
+
+ class ApplicationDAO {
+
+ private int id = 0;
+
+ int getIdByCode() {
+ return id;
+ }
+ }
+}
diff --git a/skywalking-ui b/skywalking-ui
index a42f1b27d..922c012ef 160000
--- a/skywalking-ui
+++ b/skywalking-ui
@@ -1 +1 @@
-Subproject commit a42f1b27d5c8cbde86945767830f71fe41c532df
+Subproject commit 922c012efd0c385e3c502d06d2730c73452f779d
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