Merge branch 'dev' into issue/1463

README.md

@@ -99,9 +99,9 @@ It is because of the shoulders of these open source projects that the birth of t
 ### Get Help
 1. Submit an issue
 1. Subscribe the mail list : https://dolphinscheduler.apache.org/en-us/docs/development/subscribe.html.  then send mail to dev@dolphinscheduler.apache.org
+1. Slack channel: [![Slack Status](https://img.shields.io/badge/slack-join_chat-white.svg?logo=slack&style=social)](https://join.slack.com/share/zt-do3gvfhj-UUhrAX2GxkVX_~JJt1jpKA)
 1. Contact WeChat(dailidong66). This is just for Mandarin(CN) discussion.
 
 ### License
 Please refer to [LICENSE](https://github.com/apache/incubator-dolphinscheduler/blob/dev/LICENSE) file.
 
-

docker/docker-compose.yml

@@ -23,6 +23,7 @@ services:
       - "2181:2181"
     environment:
       ZOO_MY_ID: 1
+      ZOO_4LW_COMMANDS_WHITELIST: srvr,ruok,wchs,cons
   db:
     image: postgres
     container_name: postgres

dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/service/ExecutorService.java

@@ -124,14 +124,12 @@ public class ExecutorService extends BaseService{
             return result;
         }
 
-        // check master server exists
+        // check master exists
-        List<Server> masterServers = monitorService.getServerListFromZK(true);
+        if (!checkMasterExists(result)) {
-
-
-        if (masterServers.size() == 0) {
-            putMsg(result, Status.MASTER_NOT_EXISTS);
             return result;
         }
+
+
         /**
          * create command
          */
@@ -152,6 +150,22 @@ public class ExecutorService extends BaseService{
         return result;
     }
 
+    /**
+     * check whether master exists
+     * @param result result
+     * @return master exists return true , otherwise return false
+     */
+    private boolean checkMasterExists(Map<String, Object> result) {
+        // check master server exists
+        List<Server> masterServers = monitorService.getServerListFromZK(true);
+
+        // no master
+        if (masterServers.size() == 0) {
+            putMsg(result, Status.MASTER_NOT_EXISTS);
+            return false;
+        }
+        return true;
+    }
 
 
     /**
@@ -195,6 +209,12 @@ public class ExecutorService extends BaseService{
             return checkResult;
         }
 
+        // check master exists
+        if (!checkMasterExists(result)) {
+            return result;
+        }
+
+
         ProcessInstance processInstance = processService.findProcessInstanceDetailById(processInstanceId);
         if (processInstance == null) {
             putMsg(result, Status.PROCESS_INSTANCE_NOT_EXIST, processInstanceId);

dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/utils/ZooKeeperState.java

@@ -33,7 +33,7 @@ public class ZooKeeperState {
 	private final String host;
 	private final int port;
 
-	private int minLatency = -1, avgLatency = -1, maxLatency = -1;
+	private float minLatency = -1, avgLatency = -1, maxLatency = -1;
 	private long received = -1;
 	private long sent = -1;
 	private int outStanding = -1;
@@ -60,9 +60,9 @@ public class ZooKeeperState {
 					String line = scannerForStat.nextLine();
 					if (line.startsWith("Latency min/avg/max:")) {
 						String[] latencys = getStringValueFromLine(line).split("/");
-						minLatency = Integer.parseInt(latencys[0]);
+						minLatency = Float.parseFloat(latencys[0]);
-						avgLatency = Integer.parseInt(latencys[1]);
+						avgLatency = Float.parseFloat(latencys[1]);
-						maxLatency = Integer.parseInt(latencys[2]);
+						maxLatency = Float.parseFloat(latencys[2]);
 					} else if (line.startsWith("Received:")) {
 						received = Long.parseLong(getStringValueFromLine(line));
 					} else if (line.startsWith("Sent:")) {
@@ -165,15 +165,15 @@ public class ZooKeeperState {
 		return port;
 	}
 
-	public int getMinLatency() {
+	public float getMinLatency() {
 		return minLatency;
 	}
 
-	public int getAvgLatency() {
+	public float getAvgLatency() {
 		return avgLatency;
 	}
 
-	public int getMaxLatency() {
+	public float getMaxLatency() {
 		return maxLatency;
 	}
 

dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/utils/ZookeeperMonitor.java

@@ -88,9 +88,9 @@ public class ZookeeperMonitor extends AbstractZKClient {
 				long sent = state.getSent();
 				long received = state.getReceived();
 				String mode =  state.getMode();
-				int minLatency =  state.getMinLatency();
+				float minLatency =  state.getMinLatency();
-				int avgLatency = state.getAvgLatency();
+				float avgLatency = state.getAvgLatency();
-				int maxLatency = state.getMaxLatency();
+				float maxLatency = state.getMaxLatency();
 				int nodeCount = state.getNodeCount();
 				int status = ok ? 1 : 0;
 				Date date = new Date();

dolphinscheduler-dao/src/main/java/org/apache/dolphinscheduler/dao/entity/ZookeeperRecord.java

@@ -56,17 +56,17 @@ public class ZookeeperRecord {
     /**
      * min Latency
      */
-    private int minLatency;
+    private float minLatency;
 
     /**
      * avg Latency
      */
-    private int avgLatency;
+    private float avgLatency;
 
     /**
      * max Latency
      */
-    private int maxLatency;
+    private float maxLatency;
 
     /**
      * node count
@@ -85,7 +85,7 @@ public class ZookeeperRecord {
     private int state;
 
 
-    public ZookeeperRecord(String hostname,int connections, int watches, long sent, long received, String mode, int minLatency, int avgLatency, int maxLatency, int nodeCount, int state,Date date) {
+    public ZookeeperRecord(String hostname,int connections, int watches, long sent, long received, String mode, float minLatency, float avgLatency, float maxLatency, int nodeCount, int state,Date date) {
         this.hostname = hostname;
         this.connections = connections;
         this.watches = watches;
@@ -149,23 +149,23 @@ public class ZookeeperRecord {
         this.mode = mode;
     }
 
-    public int getMinLatency() {
+    public float getMinLatency() {
         return minLatency;
     }
 
-    public void setMinLatency(int minLatency) {
+    public void setMinLatency(float minLatency) {
         this.minLatency = minLatency;
     }
 
-    public int getAvgLatency() {
+    public float getAvgLatency() {
         return avgLatency;
     }
 
-    public void setAvgLatency(int avgLatency) {
+    public void setAvgLatency(float avgLatency) {
         this.avgLatency = avgLatency;
     }
 
-    public int getMaxLatency() {
+    public float getMaxLatency() {
         return maxLatency;
     }