diff --git a/hugegraph-api/pom.xml b/hugegraph-api/pom.xml
index b0de9feb99..487d8ff827 100644
--- a/hugegraph-api/pom.xml
+++ b/hugegraph-api/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>hugegraph</artifactId>
         <groupId>com.baidu.hugegraph</groupId>
-        <version>0.10.2</version>
+        <version>0.10.3</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/hugegraph-api/src/main/java/com/baidu/hugegraph/core/GraphManager.java b/hugegraph-api/src/main/java/com/baidu/hugegraph/core/GraphManager.java
index 7eb53b53b8..0b0e0b4402 100644
--- a/hugegraph-api/src/main/java/com/baidu/hugegraph/core/GraphManager.java
+++ b/hugegraph-api/src/main/java/com/baidu/hugegraph/core/GraphManager.java
@@ -38,12 +38,14 @@
 import com.baidu.hugegraph.auth.HugeAuthenticator;
 import com.baidu.hugegraph.auth.HugeFactoryAuthProxy;
 import com.baidu.hugegraph.auth.HugeGraphAuthProxy;
+import com.baidu.hugegraph.backend.BackendException;
 import com.baidu.hugegraph.backend.cache.Cache;
 import com.baidu.hugegraph.backend.cache.CacheManager;
 import com.baidu.hugegraph.backend.store.BackendStoreSystemInfo;
 import com.baidu.hugegraph.config.HugeConfig;
 import com.baidu.hugegraph.config.ServerOptions;
 import com.baidu.hugegraph.exception.NotSupportException;
+import com.baidu.hugegraph.license.LicenseVerifier;
 import com.baidu.hugegraph.metrics.MetricsUtil;
 import com.baidu.hugegraph.metrics.ServerReporter;
 import com.baidu.hugegraph.serializer.JsonSerializer;
@@ -70,6 +72,7 @@ public GraphManager(HugeConfig conf) {
         }
 
         this.loadGraphs(conf.getMap(ServerOptions.GRAPHS));
+        this.installLicense(conf);
         this.checkBackendVersionOrExit();
         this.restoreUncompletedTasks();
         this.addMetrics(conf);
@@ -135,6 +138,10 @@ public void commit(final Set<String> graphSourceNamesToCloseTxOn) {
         closeTx(graphSourceNamesToCloseTxOn, Transaction.Status.COMMIT);
     }
 
+    private void installLicense(HugeConfig config) {
+        LicenseVerifier.instance().install(config, this);
+    }
+
     private void closeTx(final Set<String> graphSourceNamesToCloseTxOn,
                          final Transaction.Status tx) {
         final Set<Graph> graphsToCloseTxOn = new HashSet<>();
@@ -192,13 +199,12 @@ private void checkBackendVersionOrExit() {
             }
             BackendStoreSystemInfo info = new BackendStoreSystemInfo(hugegraph);
             if (!info.exist()) {
-                LOG.error("The backend store of '{}' has not been initialized",
+                throw new BackendException(
+                          "The backend store of '%s' has not been initialized",
                           hugegraph.name());
-                System.exit(-1);
             }
             if (!info.checkVersion()) {
-                // Exit if versions are inconsistent
-                System.exit(-1);
+                throw new BackendException("Check backend store version failed");
             }
         }
     }
diff --git a/hugegraph-api/src/main/java/com/baidu/hugegraph/license/LicenseVerifyManager.java b/hugegraph-api/src/main/java/com/baidu/hugegraph/license/LicenseVerifyManager.java
index b6cbec723d..3a0e97b0d0 100644
--- a/hugegraph-api/src/main/java/com/baidu/hugegraph/license/LicenseVerifyManager.java
+++ b/hugegraph-api/src/main/java/com/baidu/hugegraph/license/LicenseVerifyManager.java
@@ -21,11 +21,14 @@
 
 import java.io.IOException;
 import java.lang.management.ManagementFactory;
+import java.net.InetAddress;
+import java.net.UnknownHostException;
 import java.util.List;
 
 import org.apache.commons.lang3.StringUtils;
 import org.slf4j.Logger;
 
+import com.baidu.hugegraph.HugeException;
 import com.baidu.hugegraph.config.HugeConfig;
 import com.baidu.hugegraph.config.ServerOptions;
 import com.baidu.hugegraph.core.GraphManager;
@@ -64,7 +67,7 @@ public void config(HugeConfig config) {
 
     public HugeConfig config() {
         E.checkState(this.config != null,
-                     "license verify manager has not been installed");
+                     "License verify manager has not been installed");
         return this.config;
     }
 
@@ -74,15 +77,18 @@ public void graphManager(GraphManager graphManager) {
 
     public GraphManager graphManager() {
         E.checkState(this.graphManager != null,
-                     "license verify manager has not been installed");
+                     "License verify manager has not been installed");
         return this.graphManager;
     }
 
     @Override
-    protected synchronized void validate(LicenseContent content)
-                                         throws LicenseContentException {
+    protected synchronized void validate(LicenseContent content) {
         // call super validate firstly
-        super.validate(content);
+        try {
+            super.validate(content);
+        } catch (LicenseContentException e) {
+            throw new HugeException("License valiverifydate failed");
+        }
 
         // Verify the customized license parameters.
         List<ExtraParam> extraParams;
@@ -97,14 +103,12 @@ protected synchronized void validate(LicenseContent content)
         LOG.debug("server id is {}", serverId);
         ExtraParam param = this.matchParam(serverId, extraParams);
         if (param == null) {
-            throw new LicenseContentException("The current server's id " +
-                                              "is not authorized");
+            throw new HugeException("The current server's id is not authorized");
         }
 
         this.checkVersion(param);
         this.checkGraphs(param);
-        this.checkIp(param);
-        this.checkMac(param);
+        this.checkIpAndMac(param);
         this.checkCpu(param);
         this.checkRam(param);
         this.checkThreads(param);
@@ -124,7 +128,7 @@ private ExtraParam matchParam(String id, List<ExtraParam> extraParams) {
         return null;
     }
 
-    private void checkVersion(ExtraParam param) throws LicenseContentException {
+    private void checkVersion(ExtraParam param) {
         String expectVersion = param.version();
         if (StringUtils.isEmpty(expectVersion)) {
             return;
@@ -137,7 +141,7 @@ private void checkVersion(ExtraParam param) throws LicenseContentException {
         }
     }
 
-    private void checkGraphs(ExtraParam param) throws LicenseContentException {
+    private void checkGraphs(ExtraParam param) {
         int expectGraphs = param.graphs();
         if (expectGraphs == NO_LIMIT) {
             return;
@@ -150,7 +154,7 @@ private void checkGraphs(ExtraParam param) throws LicenseContentException {
         }
     }
 
-    private void checkIp(ExtraParam param) throws LicenseContentException {
+    private void checkIpAndMac(ExtraParam param) {
         String expectIp = param.ip();
         if (StringUtils.isEmpty(expectIp)) {
             return;
@@ -161,22 +165,29 @@ private void checkIp(ExtraParam param) throws LicenseContentException {
                   "The server's ip '%s' doesn't match the authorized '%s'",
                   actualIps, expectIp);
         }
-    }
 
-    private void checkMac(ExtraParam param) throws LicenseContentException {
         String expectMac = param.mac();
         if (StringUtils.isEmpty(expectMac)) {
             return;
         }
-        List<String> actualMacs = this.machineInfo.getMacAddress();
-        if (!actualMacs.contains(expectMac)) {
+        String actualMac;
+        try {
+            actualMac = this.machineInfo.getMacByInetAddress(
+                        InetAddress.getByName(expectIp));
+        } catch (UnknownHostException e) {
+            throw newLicenseException(
+                  "Failed to get mac address for ip '%s'", expectIp);
+        }
+        String expectFormatMac = expectMac.toUpperCase().replaceAll(":", "-");
+        String actualFormatMac = actualMac.toUpperCase().replaceAll(":", "-");
+        if (!actualFormatMac.equals(expectFormatMac)) {
             throw newLicenseException(
                   "The server's mac '%s' doesn't match the authorized '%s'",
-                  actualMacs, expectMac);
+                  actualMac, expectMac);
         }
     }
 
-    private void checkCpu(ExtraParam param) throws LicenseContentException {
+    private void checkCpu(ExtraParam param) {
         int expectCpus = param.cpus();
         if (expectCpus == NO_LIMIT) {
             return;
@@ -189,7 +200,7 @@ private void checkCpu(ExtraParam param) throws LicenseContentException {
         }
     }
 
-    private void checkRam(ExtraParam param) throws LicenseContentException {
+    private void checkRam(ExtraParam param) {
         // Unit MB
         int expectRam = param.ram();
         if (expectRam == NO_LIMIT) {
@@ -205,7 +216,7 @@ private void checkRam(ExtraParam param) throws LicenseContentException {
         }
     }
 
-    private void checkThreads(ExtraParam param) throws LicenseContentException {
+    private void checkThreads(ExtraParam param) {
         int expectThreads = param.threads();
         if (expectThreads == NO_LIMIT) {
             return;
@@ -218,22 +229,25 @@ private void checkThreads(ExtraParam param) throws LicenseContentException {
         }
     }
 
-    private void checkMemory(ExtraParam param) throws LicenseContentException {
+    private void checkMemory(ExtraParam param) {
         // Unit MB
         int expectMemory = param.memory();
         if (expectMemory == NO_LIMIT) {
             return;
         }
+        /*
+         * NOTE: this max memory will be slightly smaller than XMX,
+         * because only one survivor will be used
+         */
         long actualMemory = Runtime.getRuntime().maxMemory() / Bytes.MB;
         if (actualMemory > expectMemory) {
             throw newLicenseException(
-                  "The server's max memory(MB) '%s' exceeded the " +
+                  "The server's max heap memory(MB) '%s' exceeded the " +
                   "limit(MB) '%s'", actualMemory, expectMemory);
         }
     }
 
-    private LicenseContentException newLicenseException(String message,
-                                                        Object... args) {
-        return new LicenseContentException(String.format(message, args));
+    private HugeException newLicenseException(String message, Object... args) {
+        return new HugeException(message, args);
     }
 }
diff --git a/hugegraph-api/src/main/java/com/baidu/hugegraph/server/ApplicationConfig.java b/hugegraph-api/src/main/java/com/baidu/hugegraph/server/ApplicationConfig.java
index 198510566c..f8cf2fb2ca 100644
--- a/hugegraph-api/src/main/java/com/baidu/hugegraph/server/ApplicationConfig.java
+++ b/hugegraph-api/src/main/java/com/baidu/hugegraph/server/ApplicationConfig.java
@@ -37,7 +37,6 @@
 import com.baidu.hugegraph.config.HugeConfig;
 import com.baidu.hugegraph.core.GraphManager;
 import com.baidu.hugegraph.define.WorkLoad;
-import com.baidu.hugegraph.license.LicenseVerifier;
 import com.baidu.hugegraph.util.E;
 import com.codahale.metrics.MetricRegistry;
 import com.codahale.metrics.jersey2.InstrumentedResourceMethodApplicationListener;
@@ -68,10 +67,6 @@ public ApplicationConfig(HugeConfig conf) {
         register(new InstrumentedResourceMethodApplicationListener(registry));
     }
 
-    private void installLicense(HugeConfig config, GraphManager manager) {
-        LicenseVerifier.instance().install(config, manager);
-    }
-
     private class ConfFactory extends AbstractBinder
                               implements Factory<HugeConfig> {
 
@@ -110,8 +105,7 @@ public GraphManagerFactory(HugeConfig conf) {
                 @Override
                 public void onEvent(ApplicationEvent event) {
                     if (event.getType() == this.EVENT_INITED) {
-                        GraphManagerFactory.this.manager = new GraphManager(conf);
-                        ApplicationConfig.this.installLicense(conf, manager);
+                        manager = new GraphManager(conf);
                     }
                 }
 
diff --git a/hugegraph-api/src/main/java/com/baidu/hugegraph/server/RestServer.java b/hugegraph-api/src/main/java/com/baidu/hugegraph/server/RestServer.java
index e5f8b0bae3..53242c535f 100644
--- a/hugegraph-api/src/main/java/com/baidu/hugegraph/server/RestServer.java
+++ b/hugegraph-api/src/main/java/com/baidu/hugegraph/server/RestServer.java
@@ -58,8 +58,12 @@ public void start() throws IOException {
         ResourceConfig rc = new ApplicationConfig(this.conf);
 
         this.httpServer = this.configHttpServer(uri, rc);
-        this.httpServer.start();
-
+        try {
+            this.httpServer.start();
+        } catch (Throwable e) {
+            this.httpServer.shutdownNow();
+            throw e;
+        }
         this.calcMaxWriteThreads();
     }
 
diff --git a/hugegraph-cassandra/pom.xml b/hugegraph-cassandra/pom.xml
index ec94a83749..d60148945a 100644
--- a/hugegraph-cassandra/pom.xml
+++ b/hugegraph-cassandra/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>hugegraph</artifactId>
         <groupId>com.baidu.hugegraph</groupId>
-        <version>0.10.2</version>
+        <version>0.10.3</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/hugegraph-core/pom.xml b/hugegraph-core/pom.xml
index 2652199060..d2548feb0a 100644
--- a/hugegraph-core/pom.xml
+++ b/hugegraph-core/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>com.baidu.hugegraph</groupId>
         <artifactId>hugegraph</artifactId>
-        <version>0.10.2</version>
+        <version>0.10.3</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>hugegraph-core</artifactId>
diff --git a/hugegraph-core/src/main/java/com/baidu/hugegraph/task/TaskManager.java b/hugegraph-core/src/main/java/com/baidu/hugegraph/task/TaskManager.java
index 31ba5ab4d9..5d1c34bd5c 100644
--- a/hugegraph-core/src/main/java/com/baidu/hugegraph/task/TaskManager.java
+++ b/hugegraph-core/src/main/java/com/baidu/hugegraph/task/TaskManager.java
@@ -73,7 +73,9 @@ public void closeScheduler(HugeGraph graph) {
         if (scheduler != null && scheduler.close()) {
             this.schedulers.remove(graph);
         }
-        this.closeTaskTx(graph);
+        if (!this.taskExecutor.isTerminated()) {
+            this.closeTaskTx(graph);
+        }
     }
 
     private void closeTaskTx(HugeGraph graph) {
diff --git a/hugegraph-dist/pom.xml b/hugegraph-dist/pom.xml
index 9d3bc9dcdd..e3bf2412c7 100644
--- a/hugegraph-dist/pom.xml
+++ b/hugegraph-dist/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>hugegraph</artifactId>
         <groupId>com.baidu.hugegraph</groupId>
-        <version>0.10.2</version>
+        <version>0.10.3</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <name>hugegraph-dist</name>
diff --git a/hugegraph-dist/src/assembly/static/conf/hugegraph-evaluation.license b/hugegraph-dist/src/assembly/static/conf/hugegraph-evaluation.license
index bfd418967c..87a4039912 100644
Binary files a/hugegraph-dist/src/assembly/static/conf/hugegraph-evaluation.license and b/hugegraph-dist/src/assembly/static/conf/hugegraph-evaluation.license differ
diff --git a/hugegraph-dist/src/assembly/static/conf/log4j2.xml b/hugegraph-dist/src/assembly/static/conf/log4j2.xml
index b731ff2186..bf00865ba0 100644
--- a/hugegraph-dist/src/assembly/static/conf/log4j2.xml
+++ b/hugegraph-dist/src/assembly/static/conf/log4j2.xml
@@ -16,7 +16,6 @@
     </appenders>
     <loggers>
         <root level="INFO">
-            <appender-ref ref="console"/>
             <appender-ref ref="file"/>
         </root>
         <logger name="org.apache.cassandra" level="INFO" additivity="false">
diff --git a/hugegraph-dist/src/main/java/com/baidu/hugegraph/dist/HugeGraphServer.java b/hugegraph-dist/src/main/java/com/baidu/hugegraph/dist/HugeGraphServer.java
index 1d67b25b60..7c83649e59 100644
--- a/hugegraph-dist/src/main/java/com/baidu/hugegraph/dist/HugeGraphServer.java
+++ b/hugegraph-dist/src/main/java/com/baidu/hugegraph/dist/HugeGraphServer.java
@@ -50,7 +50,11 @@ public HugeGraphServer(String gremlinServerConf, String restServerConf)
             this.restServer = HugeRestServer.start(restServerConf);
         } catch (Throwable e) {
             LOG.error("HugeRestServer start error: ", e);
-            this.gremlinServer.stop();
+            try {
+                this.gremlinServer.stop().get();
+            } catch (Throwable t) {
+                LOG.error("GremlinServer stop error: ", t);
+            }
             HugeGraph.shutdown(30L);
             throw e;
         }
@@ -87,8 +91,8 @@ public static void main(String[] args) throws Exception {
         }
 
         HugeRestServer.register();
-        HugeGraphServer server = new HugeGraphServer(args[0], args[1]);
 
+        HugeGraphServer server = new HugeGraphServer(args[0], args[1]);
         Runtime.getRuntime().addShutdownHook(new Thread(() -> {
             LOG.info("HugeGraphServer stopping");
             server.stop();
diff --git a/hugegraph-example/pom.xml b/hugegraph-example/pom.xml
index d32c740a5e..b43f5ee97e 100644
--- a/hugegraph-example/pom.xml
+++ b/hugegraph-example/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>hugegraph</artifactId>
         <groupId>com.baidu.hugegraph</groupId>
-        <version>0.10.2</version>
+        <version>0.10.3</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/hugegraph-hbase/pom.xml b/hugegraph-hbase/pom.xml
index 08a87264a8..ef7bb106d3 100644
--- a/hugegraph-hbase/pom.xml
+++ b/hugegraph-hbase/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>hugegraph</artifactId>
         <groupId>com.baidu.hugegraph</groupId>
-        <version>0.10.2</version>
+        <version>0.10.3</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/hugegraph-mysql/pom.xml b/hugegraph-mysql/pom.xml
index e3f5013cd4..47579c308d 100644
--- a/hugegraph-mysql/pom.xml
+++ b/hugegraph-mysql/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>hugegraph</artifactId>
         <groupId>com.baidu.hugegraph</groupId>
-        <version>0.10.2</version>
+        <version>0.10.3</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/hugegraph-palo/pom.xml b/hugegraph-palo/pom.xml
index e17f890f07..69b90ef5d3 100644
--- a/hugegraph-palo/pom.xml
+++ b/hugegraph-palo/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>hugegraph</artifactId>
         <groupId>com.baidu.hugegraph</groupId>
-        <version>0.10.2</version>
+        <version>0.10.3</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/hugegraph-postgresql/pom.xml b/hugegraph-postgresql/pom.xml
index 798e92eb8e..d1f88560ad 100644
--- a/hugegraph-postgresql/pom.xml
+++ b/hugegraph-postgresql/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>hugegraph</artifactId>
         <groupId>com.baidu.hugegraph</groupId>
-        <version>0.10.2</version>
+        <version>0.10.3</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/hugegraph-rocksdb/pom.xml b/hugegraph-rocksdb/pom.xml
index e0286a5343..b459dde296 100644
--- a/hugegraph-rocksdb/pom.xml
+++ b/hugegraph-rocksdb/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>hugegraph</artifactId>
         <groupId>com.baidu.hugegraph</groupId>
-        <version>0.10.2</version>
+        <version>0.10.3</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/hugegraph-scylladb/pom.xml b/hugegraph-scylladb/pom.xml
index 8dfb57c938..c7fb4cbd39 100644
--- a/hugegraph-scylladb/pom.xml
+++ b/hugegraph-scylladb/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>hugegraph</artifactId>
         <groupId>com.baidu.hugegraph</groupId>
-        <version>0.10.2</version>
+        <version>0.10.3</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/hugegraph-test/pom.xml b/hugegraph-test/pom.xml
index 976a8a5535..39f9464dcd 100644
--- a/hugegraph-test/pom.xml
+++ b/hugegraph-test/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>hugegraph</artifactId>
         <groupId>com.baidu.hugegraph</groupId>
-        <version>0.10.2</version>
+        <version>0.10.3</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/pom.xml b/pom.xml
index 503b9c86ab..9b90e1af6e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baidu.hugegraph</groupId>
     <artifactId>hugegraph</artifactId>
-    <version>0.10.2</version>
+    <version>0.10.3</version>
     <packaging>pom</packaging>
     <prerequisites>
         <maven>3.3.9</maven>