GRPC and Distributed Search and Auto Recovery working good

.idea/workspace.xml

@@ -10,21 +10,26 @@
   </component>
   <component name="ChangeListManager">
     <list default="true" id="b8bcd35c-99f3-44c8-a866-59f81c3c8bd0" name="Changes" comment="">
-      <change afterPath="$PROJECT_DIR$/src/main/java/GRPCConnection/GRPCClient/GRPCClient.java" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/src/main/java/WebSide/WebClient.java" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/src/main/java/WebSide/WebServer.java" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/src/main/java/GRPCConnection/GRPCServiceStart.java" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/src/main/resources/application.properties" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/logs/app.log" beforeDir="false" afterPath="$PROJECT_DIR$/logs/app.log" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/out/artifacts/Distributed_Search_jar/Distributed-Search.jar" beforeDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/GRPCConnection/GRPCClient/GRPCClient.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/GRPCConnection/GRPCClient/GRPCClient.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/GRPCConnection/GRPCServer/GRPCServer.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/GRPCConnection/GRPCServer/GRPCServer.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/GRPCConnection/Main.java" beforeDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/WebSide/WebClient.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/WebSide/WebClient.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/WebSide/WebServer.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/WebSide/WebServer.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/org/AutoHealerAndClusterSearch/AutoHealerAndClusterSearch/Application.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/org/AutoHealerAndClusterSearch/AutoHealerAndClusterSearch/Application.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/org/AutoHealerAndClusterSearch/AutoHealerAndClusterSearch/Coordinator.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/org/AutoHealerAndClusterSearch/AutoHealerAndClusterSearch/Coordinator.java" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/src/main/java/org/AutoHealerAndClusterSearch/AutoHealerAndClusterSearch/ServiceRegistry.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/org/AutoHealerAndClusterSearch/AutoHealerAndClusterSearch/ServiceRegistry.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/main/java/org/AutoHealerAndClusterSearch/GRPCConnection/GRPCClient/GRPCClient.java" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/main/java/org/AutoHealerAndClusterSearch/GRPCConnection/GRPCServer/GRPCServer.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/GRPCConnection/GRPCServer/GRPCServer.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/main/java/org/AutoHealerAndClusterSearch/GRPCConnection/Main.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/GRPCConnection/Main.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/target/classes/GRPCConnection/GRPCClient/GRPCClient.class" beforeDir="false" afterPath="$PROJECT_DIR$/target/classes/GRPCConnection/GRPCClient/GRPCClient.class" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/target/classes/GRPCConnection/GRPCServer/GRPCServer.class" beforeDir="false" afterPath="$PROJECT_DIR$/target/classes/GRPCConnection/GRPCServer/GRPCServer.class" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/target/classes/GRPCConnection/Main.class" beforeDir="false" />
+      <change beforePath="$PROJECT_DIR$/target/classes/org/AutoHealerAndClusterSearch/AutoHealerAndClusterSearch/Application.class" beforeDir="false" afterPath="$PROJECT_DIR$/target/classes/org/AutoHealerAndClusterSearch/AutoHealerAndClusterSearch/Application.class" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/target/classes/org/AutoHealerAndClusterSearch/AutoHealerAndClusterSearch/Coordinator$1.class" beforeDir="false" afterPath="$PROJECT_DIR$/target/classes/org/AutoHealerAndClusterSearch/AutoHealerAndClusterSearch/Coordinator$1.class" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/target/classes/org/AutoHealerAndClusterSearch/AutoHealerAndClusterSearch/Coordinator.class" beforeDir="false" afterPath="$PROJECT_DIR$/target/classes/org/AutoHealerAndClusterSearch/AutoHealerAndClusterSearch/Coordinator.class" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/target/classes/org/AutoHealerAndClusterSearch/AutoHealerAndClusterSearch/ServiceRegistry$1.class" beforeDir="false" afterPath="$PROJECT_DIR$/target/classes/org/AutoHealerAndClusterSearch/AutoHealerAndClusterSearch/ServiceRegistry$1.class" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/target/classes/org/AutoHealerAndClusterSearch/AutoHealerAndClusterSearch/ServiceRegistry.class" beforeDir="false" afterPath="$PROJECT_DIR$/target/classes/org/AutoHealerAndClusterSearch/AutoHealerAndClusterSearch/ServiceRegistry.class" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/target/classes/org/AutoHealerAndClusterSearch/GRPCConnection/Main.class" beforeDir="false" />
     </list>
     <option name="SHOW_DIALOG" value="false" />
     <option name="HIGHLIGHT_CONFLICTS" value="true" />
@@ -66,7 +71,7 @@
     &quot;SHARE_PROJECT_CONFIGURATION_FILES&quot;: &quot;true&quot;,
     &quot;ToolWindowRun.ShowToolbar&quot;: &quot;false&quot;,
     &quot;jdk.selected.JAVA_MODULE&quot;: &quot;17 (2)&quot;,
-    &quot;last_opened_file_path&quot;: &quot;D:/HIAST/FIY/FS/Distributed Systems/Lab/8/Distributed-Search/src/main/java&quot;,
+    &quot;last_opened_file_path&quot;: &quot;D:/HIAST/FIY/FS/Distributed Systems/Lab/4/HomeWork&quot;,
     &quot;project.structure.last.edited&quot;: &quot;Artifacts&quot;,
     &quot;project.structure.proportion&quot;: &quot;0.15&quot;,
     &quot;project.structure.side.proportion&quot;: &quot;0.2&quot;,
@@ -95,20 +100,7 @@
       <command value="mvn clean install" />
     </option>
   </component>
-  <component name="RunManager" selected="Application.Node1">
-    <configuration name="Main" type="Application" factoryName="Application" temporary="true" nameIsGenerated="true">
-      <option name="MAIN_CLASS_NAME" value="org.AutoHealerAndClusterSearch.GRPCConnection.Main" />
-      <module name="Distributed-Search" />
-      <extension name="coverage">
-        <pattern>
-          <option name="PATTERN" value="org.AutoHealerAndClusterSearch.GRPCConnection.*" />
-          <option name="ENABLED" value="true" />
-        </pattern>
-      </extension>
-      <method v="2">
-        <option name="Make" enabled="true" />
-      </method>
-    </configuration>
+  <component name="RunManager">
     <configuration name="Node1" type="Application" factoryName="Application">
       <option name="MAIN_CLASS_NAME" value="org.AutoHealerAndClusterSearch.AutoHealerAndClusterSearch.Application" />
       <module name="Distributed-Search" />
@@ -130,13 +122,6 @@
         <option name="Make" enabled="true" />
       </method>
     </configuration>
-    <configuration name="Node4" type="Application" factoryName="Application">
-      <option name="MAIN_CLASS_NAME" value="org.AutoHealerAndClusterSearch.AutoHealerAndClusterSearch.Application" />
-      <module name="Distributed-Search" />
-      <method v="2">
-        <option name="Make" enabled="true" />
-      </method>
-    </configuration>
     <configuration name="Distributed-Search.jar" type="JarApplication" temporary="true">
       <option name="JAR_PATH" value="$PROJECT_DIR$/out/artifacts/Distributed_Search_jar/Distributed-Search.jar" />
       <method v="2" />
@@ -145,14 +130,11 @@
       <item itemvalue="Application.Node1" />
       <item itemvalue="Application.Node2" />
       <item itemvalue="Application.Node3" />
-      <item itemvalue="Application.Node4" />
-      <item itemvalue="Application.Main" />
       <item itemvalue="JAR Application.Distributed-Search.jar" />
     </list>
     <recent_temporary>
       <list>
         <item itemvalue="JAR Application.Distributed-Search.jar" />
-        <item itemvalue="Application.Main" />
       </list>
     </recent_temporary>
   </component>
@@ -181,4 +163,20 @@
       </map>
     </option>
   </component>
+  <component name="XDebuggerManager">
+    <breakpoint-manager>
+      <breakpoints>
+        <line-breakpoint enabled="true" type="java-line">
+          <url>file://$PROJECT_DIR$/src/main/java/GRPCConnection/GRPCServer/GRPCServer.java</url>
+          <line>41</line>
+          <option name="timeStamp" value="1" />
+        </line-breakpoint>
+        <line-breakpoint enabled="true" type="java-line">
+          <url>file://$PROJECT_DIR$/src/main/java/org/AutoHealerAndClusterSearch/AutoHealerAndClusterSearch/ServiceRegistry.java</url>
+          <line>122</line>
+          <option name="timeStamp" value="10" />
+        </line-breakpoint>
+      </breakpoints>
+    </breakpoint-manager>
+  </component>
 </project>
\ No newline at end of file

src/main/java/GRPCConnection/GRPCClient/GRPCClient.java

 package GRPCConnection.GRPCClient;
 
 
+
 import io.grpc.ManagedChannel;
 import io.grpc.ManagedChannelBuilder;
 import org.AutoHealerAndClusterSearch.SearchReply;
@@ -21,7 +22,7 @@ public class GRPCClient
                                     forAddress("localhost" , 6565).
                                     usePlaintext().build();
         SearchServiceGrpc.SearchServiceBlockingStub stub = SearchServiceGrpc.newBlockingStub(channel);
-        SearchRequest request = SearchRequest.newBuilder().setQuery("Hello There !!").build();
+        SearchRequest request = SearchRequest.newBuilder().setQuery("There is a file to be read be full of kindness").build();
         SearchReply reply = stub.search(request);
         List<String> stringList = reply.getFilesList();
         for (String s: stringList)

src/main/java/GRPCConnection/GRPCServer/GRPCServer.java

@@ -6,13 +6,17 @@ import org.AutoHealerAndClusterSearch.SearchReply;
 import org.AutoHealerAndClusterSearch.SearchRequest;
 import org.AutoHealerAndClusterSearch.SearchServiceGrpc;
 import org.apache.zookeeper.KeeperException;
+import org.apache.zookeeper.ZooKeeper;
 import org.lognet.springboot.grpc.GRpcService;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
+import org.springframework.stereotype.Component;
 
 
+import java.io.IOException;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.concurrent.ExecutionException;
 
 
 /**
@@ -20,36 +24,25 @@ import java.util.List;
  * it has threads embedded , we must configure the Coordinator only yo
  * handle requests sent from here , no need to act like a Server !!
  * */
+
 @GRpcService
 public class GRPCServer extends SearchServiceGrpc.SearchServiceImplBase
 {
-    private Coordinator coordinator;
-   /* public GRPCServer(Coordinator coordinator)
-    {
-        this.coordinator = coordinator;
-    }*/
-    //Logger logger = LoggerFactory.getLogger(GRPCServer.class);
-
     @Override
     public void search(SearchRequest request, StreamObserver<SearchReply> responseObserver)
     {
-
         //logger.info("Request Has Arrived , Query is :" + request.getQuery());
 
         List<String> ans = new ArrayList<>();
 
         String x = request.getQuery();
-        ans.add("Sorry Something Went Wrong " + x);
+        ans.add("replying to : " + x);
 
-        /*try
-        {
-            ans = coordinator.search(request.getQuery());
+        try {
+            ans = Coordinator.search(x);
+        } catch (IOException | InterruptedException | KeeperException | ExecutionException e) {
+            throw new RuntimeException(e);
         }
-        catch (IOException | InterruptedException | KeeperException | ExecutionException e)
-        {
-            logger.error("Error In GRPC While Getting answers for Query");
-            //throw new RuntimeException(e);
-        }*/
         SearchReply reply = SearchReply.newBuilder().addAllFiles(ans).build();
 
         responseObserver.onNext(reply);

src/main/java/GRPCConnection/Main.java → src/main/java/GRPCConnection/GRPCServiceStart.java

@@ -3,11 +3,12 @@ package GRPCConnection;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 
+
 @SpringBootApplication
-public class Main
+public class GRPCServiceStart
 {
-    public static void main(String[] args)
+    public static void start()
     {
-        SpringApplication.run(Main.class);
+        SpringApplication.run(GRPCServiceStart.class);
     }
 }

src/main/java/WebSide/WebServer.java

 package WebSide;
 
-public class WebServer {
+public class WebServer
+{
+    private final String GRPC_SERVER = "localhost";
+    private final String Search_End_Point = "/search";
 }

src/main/java/org/AutoHealerAndClusterSearch/AutoHealerAndClusterSearch/Application.java

@@ -15,7 +15,7 @@ public class Application implements Watcher
 
     private static final String address = "192.168.184.10:2181";
     private static final int SESSION_TIMEOUT = 3000; //dead client
-    private static final int DEFAULT_PORT = 54321;
+    //private static final int DEFAULT_PORT = 54321;
     private ZooKeeper zooKeeper;
 
     private final Logger logger = LoggerFactory.getLogger(Application.class);

src/main/java/org/AutoHealerAndClusterSearch/AutoHealerAndClusterSearch/Coordinator.java

@@ -19,25 +19,12 @@ import java.util.stream.Stream;
 
 public class Coordinator
 {
-    private ZooKeeper zooKeeper;
     private static final String PHYSICAL_ZNODES_PATH = "/physical_nodes";
 
-    private int COORDINATOR_PORT;
-
-    private String FILES_DIRECTORY = "";
-    private final Logger logger = LoggerFactory.getLogger(Coordinator.class);
-
-    public Coordinator(ZooKeeper zooKeeper , String SOCKET)
-    {
-        this.zooKeeper = zooKeeper;
-        COORDINATOR_PORT = Integer.parseInt(SOCKET.split(":")[1]);
-        
-        FILES_DIRECTORY = System.getProperty("user.dir") + "/SearchFiles/";
-    }
-
-
-    public List<String> search(String query) throws IOException, InterruptedException, KeeperException, ExecutionException {
+    private static  String FILES_DIRECTORY = System.getProperty("user.dir") + "/SearchFiles/";;
+    private static final Logger logger = LoggerFactory.getLogger(Coordinator.class);
 
+    public static List<String> search(String query) throws IOException, InterruptedException, KeeperException, ExecutionException {
         List<SearchQueryResponse> responses = spreadQuery(query);
         if (responses == null)
         {
@@ -57,9 +44,7 @@ public class Coordinator
     }
         
 
-
-
-    private SearchQueryResponse sendRequestToNode(SearchQueryRequest searchQueryRequest, String ipAddress)
+    private static  SearchQueryResponse sendRequestToNode(SearchQueryRequest searchQueryRequest, String ipAddress)
     {
         SearchQueryResponse searchQueryResponse = null;
         String ip = ipAddress.split(":")[0];
@@ -81,7 +66,7 @@ public class Coordinator
         return searchQueryResponse;
     }
 
-    private void printResponses(List<String> filesAnswer)
+    private static  void printResponses(List<String> filesAnswer)
     {
         ///GRPC Connection
         if (filesAnswer.size() == 0)
@@ -96,8 +81,7 @@ public class Coordinator
     }
 
 
-
-    private void handleClient(String query)
+    private static  void handleClient(String query)
     {
         try
         {
@@ -136,7 +120,7 @@ public class Coordinator
      * Each slave will Send the set of words with their frequency percentage in each file
      * and EACH SLAVE HAS A UNIQUE SET OF FILES !!
      * */
-    private Map<String , Double> getFilesScore(List<SearchQueryResponse> respons , String query)
+    private static  Map<String , Double> getFilesScore(List<SearchQueryResponse> respons , String query)
     {
         if (respons == null) return null;
         if (query.isEmpty()) return null;
@@ -158,7 +142,7 @@ public class Coordinator
         return fileScore;
     }
 
-    private List<String> getFilesInOrder(Map<String , Double> filesScore)
+    private static  List<String> getFilesInOrder(Map<String , Double> filesScore)
     {
         List<String> files = new ArrayList<>();
         if(filesScore == null)
@@ -186,7 +170,7 @@ public class Coordinator
      * Each slave will Send the set of words with their frequency percentage in each file
      * and EACH SLAVE HAS A UNIQUE SET OF FILES !!
      */
-    private Map<String , Double> calculateIDF(List<SearchQueryResponse> respons , String query)
+    private static  Map<String , Double> calculateIDF(List<SearchQueryResponse> respons , String query)
     {
         Map<String , Double> wordsIDF = new HashMap<>();
         int totalNumberOfFiles = countFilesInDirectory();
@@ -206,7 +190,7 @@ public class Coordinator
         }
         return wordsIDF;
     }
-    private int countFilesInDirectory()
+    private static  int countFilesInDirectory()
     {
         try (Stream<Path> files = Files.list(Paths.get(FILES_DIRECTORY)))
         {
@@ -225,45 +209,33 @@ public class Coordinator
      * response is map here the keys are words
      * and values are list of pair<fileName,Number Of Appearance of the word in it>
      * */
-    public List<SearchQueryResponse> spreadQuery(String query) throws InterruptedException, KeeperException, IOException, ExecutionException
+    public static List<SearchQueryResponse> spreadQuery(String query) throws InterruptedException, KeeperException, IOException, ExecutionException
     {
-        List<String> physicalZnodes = zooKeeper.getChildren(PHYSICAL_ZNODES_PATH, false);
+        List<String> physicalZnodesAddresses = ServiceRegistry.getAllServiceAddresses();
 
-        if (physicalZnodes.isEmpty())
+        if (physicalZnodesAddresses.isEmpty())
         {
             return null;
         }
         int totalFilesNumber = countFilesInDirectory();
 
         //System.out.println("Files Number = " + totalFilesNumber);
-        int filesNumberforNode = (totalFilesNumber + physicalZnodes.size()-1)/physicalZnodes.size();
+        int filesNumberforNode = (totalFilesNumber + physicalZnodesAddresses.size()-1)/physicalZnodesAddresses.size();
         int remaining = totalFilesNumber;
         int index = 0;
         int filesOffset=0;
 
-        ExecutorService executorService = Executors.newFixedThreadPool(physicalZnodes.size());
+        ExecutorService executorService = Executors.newFixedThreadPool(physicalZnodesAddresses.size());
         List<Callable<SearchQueryResponse>> tasks = new ArrayList<>();
 
         ///distributing Files for NODES!!!
         while (remaining > 0)
         {
-            String physicalZnode = physicalZnodes.get(index);
-            Stat stat = zooKeeper.exists(PHYSICAL_ZNODES_PATH + "/" + physicalZnodes.get(index), false);
-            if (stat == null) {
-                logger.warn("Physical Node : " + physicalZnode + " is dowm!");
-                physicalZnodes.remove(index);
-                ///nodes size ==0 ??
-                filesNumberforNode = (totalFilesNumber + physicalZnodes.size() - 1) / physicalZnodes.size();
-                continue;
-            }
-            String ipAddress = new String(
-                    zooKeeper.getData(
-                            PHYSICAL_ZNODES_PATH + "/" + physicalZnodes.get(index),
-                                    false, stat)
-            );
+
+            String ipAddress = physicalZnodesAddresses.get(index);
             SearchQueryRequest searchQueryRequest = new SearchQueryRequest(query , filesNumberforNode , filesOffset);
             tasks.add(() -> sendRequestToNode(searchQueryRequest, ipAddress));
-            index = (1 + index) % physicalZnodes.size();
+            index = (1 + index) % physicalZnodesAddresses.size();
             filesOffset = (filesOffset + filesNumberforNode) % totalFilesNumber;
             remaining -= filesNumberforNode;
         }

src/main/java/org/AutoHealerAndClusterSearch/AutoHealerAndClusterSearch/ServiceRegistry.java

 package org.AutoHealerAndClusterSearch.AutoHealerAndClusterSearch;
 
+import GRPCConnection.GRPCServiceStart;
 import org.apache.zookeeper.*;
 import org.apache.zookeeper.data.Stat;
 import org.slf4j.Logger;
@@ -22,9 +23,8 @@ public class ServiceRegistry implements Watcher
 
     private TransientWorker transientWorker = null;
     private String currentZnode = null;
-    private List<String> allServiceAddresses = null;
+    private static List<String> allServiceAddresses = null;
     
-    private int numberOfInstances;
     public ServiceRegistry(ZooKeeper zooKeeper)
     {
         this.zooKeeper = zooKeeper;
@@ -66,15 +66,20 @@ public class ServiceRegistry implements Watcher
         transientWorker = new TransientWorker(metadata);
         transientWorker.start();
     }
-
     public void registerToCoordinator(String metadata) throws InterruptedException, KeeperException, IOException
     {
         this.currentZnode = zooKeeper.create(COORDINATOR_ZNODE_PATH + "/coordinator_", metadata.getBytes(),
                 ZooDefs.Ids.OPEN_ACL_UNSAFE, CreateMode.EPHEMERAL_SEQUENTIAL);
         logger.info("Registered to be Coordinator and I am Master !");
-        coordinator = new Coordinator(this.zooKeeper , metadata);
-        //coordinator.start();
-        //GRPCServer server = new GRPCServer(coordinator);
+
+        GRPCServiceStart.start();
+        /*Thread thread = new Thread(()-> new Runnable() {
+            @Override
+            public void run() {
+                GRPCServiceStart.start();
+            }
+        });
+        thread.start();*/
     }
     public void registerForUpdates() {
         try
@@ -110,7 +115,7 @@ public class ServiceRegistry implements Watcher
 
     private void updateAddresses() throws KeeperException, InterruptedException
     {
-        List<String> workerZnodes = zooKeeper.getChildren(PHYSICAL_ZNODES_PATH, false);
+        List<String> workerZnodes = zooKeeper.getChildren(PHYSICAL_ZNODES_PATH, this);
 
         List<String> addresses = new ArrayList<>(workerZnodes.size());
 
@@ -131,6 +136,11 @@ public class ServiceRegistry implements Watcher
     }
 
 
+    public static List<String> getAllServiceAddresses()
+    {
+        return allServiceAddresses;
+    }
+
     @Override
     public void process(WatchedEvent watchedEvent)
     {
@@ -153,91 +163,4 @@ public class ServiceRegistry implements Watcher
     }
 
 
-
-
-
-    /*private void launchWorkersIfNecessary() throws KeeperException, InterruptedException, IOException
-    {
-        List<String> physicalZnodes = zooKeeper.getChildren(PHYSICAL_ZNODES_PATH, this);
-
-        List<String> workers = zooKeeper.getChildren(WORKERS_ZNODES_PATH, this);
-
-        for (String worker : workers)
-        {
-            Stat stat = zooKeeper.exists(WORKERS_ZNODES_PATH + "/" + worker, false);
-            if (stat == null) {
-                workers.remove(worker);
-                continue;
-            }
-
-            String node = new String(zooKeeper.getData(WORKERS_ZNODES_PATH + "/" + worker, false, stat));
-            if (!physicalZnodes.contains(node))
-            {
-                workers.remove(worker);
-            }
-        }
-
-        List<String> sortedWorkers = NodeSorting.sort(getOriginalNodes(workers), physicalZnodes);
-
-        while (workers.size() > numberOfInstances)
-        {
-            Stat stat = zooKeeper.exists(WORKERS_ZNODES_PATH + "/" + workers.get(0), false);
-            if (stat == null) {
-                workers.remove(0);
-                continue;
-            }
-            zooKeeper.delete(WORKERS_ZNODES_PATH + "/" + workers.get(0) , -1);
-        }
-
-        int neededInstances = numberOfInstances - workers.size();
-
-        if (neededInstances <= 0) return;
-
-
-        int index = 0;
-
-        int size = sortedWorkers.size();
-        while (neededInstances>0
-                && size>0)
-        {
-            Stat stat = zooKeeper.exists(PHYSICAL_ZNODES_PATH + "/" + sortedWorkers.get(index), false);
-            if (stat == null)
-            {
-                sortedWorkers.remove(index);
-                size--;
-                continue;
-            }
-            startNewWorker(sortedWorkers.get(index));
-            neededInstances--;
-            index = (index + 1) % size;
-        }
-
-    }*/
-
-    /*private List<byte[]> getOriginalNodes(List<String> workers) throws InterruptedException, KeeperException {
-        List<byte[]> ans = new ArrayList<>();
-        for (String worker : workers)
-        {
-            Stat stat = zooKeeper.exists(WORKERS_ZNODES_PATH+"/"+worker ,false);
-            if (stat == null) continue;
-            ans.add(zooKeeper.getData(WORKERS_ZNODES_PATH+"/"+worker,false,stat ));
-        }
-        return ans;
-    }*/
-
-    /*private void startNewWorker(String physicalNode) throws IOException, InterruptedException, KeeperException
-    {
-
-        String remoteUser = new String(zooKeeper.getData(PHYSICAL_ZNODES_PATH+"/"+physicalNode , false, null));
-
-        String remoteJarFilePath = "/root/AutoHealer/Worker.jar"; //+ file.getName();
-
-        logger.info("Sending To : " + remoteUser);
-        String sshCommand = "ssh " + remoteUser + " \"java -jar " + remoteJarFilePath + " " +physicalNode+"\"";
-        System.out.println(sshCommand);
-        Runtime.getRuntime().exec(sshCommand);
-        //long pid=Runtime.getRuntime().exec(sshCommand).pid();
-        //System.out.println(pid);
-    }*/
-
 }

src/main/resources/application.properties

+grpc.server.port=5678
\ No newline at end of file

target/classes/application.properties

+grpc.server.port=5678
\ No newline at end of file