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Commit d16dbc01 authored by Paras Garg's avatar Paras Garg
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Fixed Issue with rocksdb and converted to byte[]

parent 1180756d
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Showing with 309 additions and 238 deletions
code/hpdos_rdma_offloaded/README.md 0 → 100644
View file @ d16dbc01
How to setup RocksDB jar
1. Compiling RocksDb java from source code
make -j8 rocksjava DEBUG_LEVEL=0
2. cd java/target
3. install jar to mavenLocal Repo
Ex: used on nic
mvn install:install-file -Dfile=./rocksdbjni-6.15.5-linux64.jar -DgroupId=com.hpdos.rocksdb -DartifactId=rocksdb -Dversion=1.0 -Dpackaging=jar -DgeneratePom=true
Ex: Used on host
mvn install:install-file -Dfile=./rocksdbjni-6.23.0-linux64.jar -DgroupId=com.hpdos.rocksdb -DartifactId=rocksdb -Dversion=1.0 -Dpackaging=jar -DgeneratePom=true
4. import this jar in as maven dependency
implementation group: 'com.hpdos.rocksdb', name: 'rocksdb', version: '1.0'
code/hpdos_rdma_offloaded/app.config
View file @ d16dbc01
......@@ -8,7 +8,7 @@ app.rdma_max_inline=0
app.rdma_server_port=1920
app.NETWORK_HANDLER_THREADS=10
app.REPLICATION_HANDLER_THREADS=10
app.db_path=/home/ub-05/paras/rocks
app.db_path=/tmp/rocks
#The below properties are for master node only.
app.follower_registration_port=9876
......
code/hpdos_rdma_offloaded/build.gradle
View file @ d16dbc01
/*
* This file was generated by the Gradle 'init' task.
*
* This generated file contains a sample Java Library project to get you started.
* For more details take a look at the Java Libraries chapter in the Gradle
* User Manual available at https://docs.gradle.org/6.0/userguide/java_library_plugin.html
*/
// plugins {
// // Apply the java-library plugin to add support for Java Library
// id 'java-library'
// id 'application'
// }
// repositories {
// // Use jcenter for resolving dependencies.
// // You can declare any Maven/Ivy/file repository here.
// jcenter()
// mavenCentral()
// }
// application {
// // Define the main class for the application.
// mainClass = 'MetadataClient'
// }
// dependencies {
// // This dependency is exported to consumers, that is to say found on their compile classpath.
// api 'org.apache.commons:commons-math3:3.6.1'
// // This dependency is used internally, and not exposed to consumers on their own compile classpath.
// implementation 'com.google.guava:guava:28.0-jre'
// implementation 'com.ibm.darpc:darpc:1.9'
// // Use JUnit test framework
// testImplementation 'junit:junit:4.12'
// }
apply plugin: "application"
apply plugin: "java-library"
mainClassName = "hpdos_rdma_offloaded.MetadataServer"
application
{
mainClassName = "hpdos_rdma_offloaded.MetadataServer"
}
version '1.0-SNAPSHOT'
repositories {
repositories
{
mavenLocal()
mavenCentral()
jcenter()
}
dependencies {
dependencies
{
testCompile group: 'junit', name: 'junit', version: '4.12'
api 'org.apache.commons:commons-math3:3.6.1'
// This dependency is used internally, and not exposed to consumers on their own compile classpath.
implementation 'com.google.guava:guava:28.0-jre'
implementation 'com.ibm.darpc:darpc:1.9'
implementation 'com.github.ben-manes.caffeine:caffeine:3.0.4'
// https://mvnrepository.com/artifact/org.rocksdb/rocksdbjni
implementation group: 'org.rocksdb', name: 'rocksdbjni', version: '5.8.0'
// Use JUnit test framework
// testImplementation 'junit:junit:4.12'
implementation group: 'com.hpdos.rocksdb', name: 'rocksdb', version: '1.0'
}
\ No newline at end of file
code/hpdos_rdma_offloaded/src/main/java/hpdos_rdma_offloaded/MetadataServer.java
View file @ d16dbc01
......@@ -15,10 +15,9 @@ import org.rocksdb.RocksDBException;
import hpdos_rdma_offloaded.handler.NetworkHandler;
import hpdos_rdma_offloaded.handler.RegistrationHandler;
import hpdos_rdma_offloaded.handler.ReplicationHandler;
import hpdos_rdma_offloaded.handler.StorageHandler;
import hpdos_rdma_offloaded.rdma_protocol.Request;
import hpdos_rdma_offloaded.rdma_protocol.Response;
import hpdos_rdma_offloaded.protocol.Request;
import hpdos_rdma_offloaded.protocol.Response;
import hpdos_rdma_offloaded.service.MetadataServerService;
public class MetadataServer implements Runnable{
......@@ -30,6 +29,7 @@ public class MetadataServer implements Runnable{
private boolean polling;
private int maxinline = 0;
private int rdma_port;
private long[] clusterAffinities;
boolean isMaster;
StorageHandler storageHandler;
......@@ -38,19 +38,24 @@ public class MetadataServer implements Runnable{
RegistrationHandler registrationHandler = null;
public final static Properties properties= new Properties();;
public MetadataServer(Properties properties) throws IOException,RocksDBException {
this.isMaster = Boolean.valueOf((String)properties.get("app.MASTER"));
this.storageHandler = new StorageHandler(properties.getProperty("app.db_path"));
this.networkHandler = new NetworkHandler(this.storageHandler, properties);
this.metadataServerService = new MetadataServerService(this.networkHandler);
// if (this.isMaster) {
this.registrationHandler = new RegistrationHandler(properties);
// }
}
public void run()
{
public MetadataServer(String propertyPath) throws IOException,RocksDBException {
InputStream inputStream = new FileInputStream(propertyPath);
properties.load(inputStream);
boolean isMaster = Boolean.valueOf((String)properties.get("app.MASTER"));
if(isMaster)
{
System.out.println("STARTING MASTER SERVICES.");
}
else
{
System.out.println("STARTING FOLLOWER SERVICES.");
}
isMaster = Boolean.valueOf((String)properties.get("app.MASTER"));
storageHandler = new StorageHandler(properties.getProperty("app.db_path"));
networkHandler = new NetworkHandler(this.storageHandler, properties);
metadataServerService = new MetadataServerService(this.networkHandler);
registrationHandler = new RegistrationHandler(properties);
host = (String) properties.get("app.HOST");
poolsize = Integer.valueOf( (String)properties.get("app.cpu_affinity"));
recvQueue = Integer.valueOf( (String)properties.get("app.rdma_receive_queue"));
......@@ -59,65 +64,45 @@ public class MetadataServer implements Runnable{
maxinline = Integer.valueOf((String) properties.get("app.rdma_max_inline"));
rdma_port = Integer.valueOf((String) properties.get("app.rdma_server_port"));
polling = Boolean.valueOf((String) properties.get("app.rdma_polling"));
long[] clusterAffinities = new long[poolsize];
for (int i = 0; i < poolsize; i++){
clusterAffinities = new long[poolsize];
for (int i = 0; i < poolsize; i++)
{
long cpu = 1L << i;
clusterAffinities[i] = cpu;
}
}
public void run(){
// MetadataServerService rpcService = new MetadataServerService();
DaRPCServerGroup<Request, Response> group = null;
try {
group = DaRPCServerGroup.createServerGroup(this.metadataServerService, clusterAffinities, -1, maxinline, polling, recvQueue, sendQueue, wqSize, 32);
} catch (Exception e) {
e.printStackTrace();
};
RdmaServerEndpoint<DaRPCServerEndpoint<Request, Response>> serverEp = null;
try {
try
{
group = DaRPCServerGroup.createServerGroup(this.metadataServerService, this.clusterAffinities, -1, maxinline, polling, recvQueue, sendQueue, wqSize, 32);
RdmaServerEndpoint<DaRPCServerEndpoint<Request, Response>> serverEp = null;
serverEp = group.createServerEndpoint();
} catch (IOException e) {
e.printStackTrace();
}
InetSocketAddress address = new InetSocketAddress(host, rdma_port);
try {
InetSocketAddress address = new InetSocketAddress(host, rdma_port);
serverEp.bind(address, 100);
} catch (Exception e) {
e.printStackTrace();
}
while(true){
try {
while(true){
try
{
// System.out.println("Listening to RDMA requests a, IP: " + host + " , PORT: " + rdma_port);
serverEp.accept();
serverEp.accept();
// System.out.println("Accepted connection.");
} catch (IOException e) {
e.printStackTrace();
}
catch (IOException e)
{
e.printStackTrace();
}
}
}catch(Exception e)
{
e.printStackTrace();
}
}
public static void main(String[] args) {
try
{
public static void main(String[] args) throws Exception
{
RocksDB.loadLibrary();
InputStream inputStream = new FileInputStream(args[0]);
properties.load(inputStream);
boolean isMaster = Boolean.valueOf((String)properties.get("app.MASTER"));
if (isMaster) {
System.out.println("STARTING MASTER SERVICES.");
} else {
System.out.println("STARTING FOLLOWER SERVICES.");
}
new MetadataServer(properties).run();
}
catch(RocksDBException ex)
{
new MetadataServer(args[0]).run();
System.out.println("Rocksdb Exception occur");
ex.printStackTrace();
}
catch(Exception ex)
{
System.out.println("Exception Occur");
ex.printStackTrace();
}
}
}
code/hpdos_rdma_offloaded/src/main/java/hpdos_rdma_offloaded/handler/NetworkHandler.java
View file @ d16dbc01
package hpdos_rdma_offloaded.handler;
import java.net.InetSocketAddress;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
......@@ -21,9 +20,10 @@ import org.rocksdb.RocksDBException;
import hpdos_rdma_offloaded.lib.Follower;
import hpdos_rdma_offloaded.lib.Packet;
import hpdos_rdma_offloaded.rdma_protocol.Request;
import hpdos_rdma_offloaded.rdma_protocol.Response;
import hpdos_rdma_offloaded.rdma_protocol.RpcProtocol;
import hpdos_rdma_offloaded.protocol.Request;
import hpdos_rdma_offloaded.protocol.RequestType;
import hpdos_rdma_offloaded.protocol.Response;
import hpdos_rdma_offloaded.protocol.RpcProtocol;
public class NetworkHandler {
StorageHandler storageHandler;
......@@ -73,10 +73,10 @@ public class NetworkHandler {
// Change the Futre to CompletableFuture to achieve correct asynchronousness
public void create(Packet packet) throws InterruptedException, ExecutionException,RocksDBException{
System.out.println("Received create request for key/value: " + packet.getKey() + "/" + packet.getValue());
storageHandler.create(packet.getKey().getBytes(), packet.getValue().getBytes());
if (this.isMaster) {
System.out.println("Received create request for key/value: " + new String(packet.getKey()) + "/" + new String(packet.getValue()));
storageHandler.create(packet.getKey(), packet.getValue());
if (this.isMaster)
{
System.out.println("Starting replication");
Future<Response> futureReplication = this.executorService.submit(()->{
Response replicationResponse = new Response();
......@@ -90,11 +90,12 @@ public class NetworkHandler {
}
public byte[] read(Packet packet) throws RocksDBException,InterruptedException,ExecutionException{
System.out.println("Received read request for key/value: " + packet.getKey() + "/" + packet.getValue());
byte[] value = storageHandler.read(packet.getKey().getBytes());
System.out.println("got value "+ new String(value));
if (this.isMaster) {
System.out.println("Received read request for key/value: " + new String(packet.getKey()));
byte[] value = storageHandler.read(packet.getKey());
if(value != null)
System.out.println("Got value "+ new String(value));
if (this.isMaster)
{
System.out.println("Starting replication");
Future<Response> futureReplication = this.executorService.submit(()->{
Response replicationResponse = new Response();
......@@ -109,7 +110,7 @@ public class NetworkHandler {
}
public void update(Packet packet) throws InterruptedException, ExecutionException,RocksDBException{
this.storageHandler.update(packet.getKey().getBytes(), packet.getValue().getBytes());
this.storageHandler.update(packet.getKey(), packet.getValue());
if (isMaster) {
Response response = new Response();
Future<Response> futureReplication = this.executorService.submit(()->{
......@@ -135,7 +136,7 @@ public class NetworkHandler {
// To implement delete
public void delete(Packet packet) throws RocksDBException,InterruptedException,ExecutionException
{
this.storageHandler.delete(packet.getKey().getBytes());
this.storageHandler.delete(packet.getKey());
if (this.isMaster) {
System.out.println("Starting replication");
Future<Response> futureReplication = this.executorService.submit(()->{
......@@ -149,17 +150,15 @@ public class NetworkHandler {
}
}
public void sendInvalidationRequest(Packet packet) throws InterruptedException, ExecutionException{
Set<Callable<Response>> callables = new HashSet<>();
for (DaRPCStream<Request, Response> stream: streams.values()) {
callables.add(() -> {
Request request = new Request();
Response response = new Response();
request.setOperationType(104);
request.setKey("");
request.setValue("");
request.setRequestType(RequestType.INVALIDATE);
request.setKey(null);
request.setValue(null);
response = stream.request(request, response, false).get();
return response;
});
......
code/hpdos_rdma_offloaded/src/main/java/hpdos_rdma_offloaded/handler/RegistrationHandler.java
View file @ d16dbc01
......@@ -7,13 +7,8 @@ import java.lang.ClassNotFoundException;
import java.net.InetAddress;
import java.net.ServerSocket;
import java.net.Socket;
import java.net.UnknownHostException;
import java.util.Properties;
import java.util.UUID;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import hpdos_rdma_offloaded.lib.Follower;
public class RegistrationHandler {
public ServerSocket server;
......
code/hpdos_rdma_offloaded/src/main/java/hpdos_rdma_offloaded/handler/ReplicationHandler.java
View file @ d16dbc01
......@@ -12,10 +12,9 @@ import java.util.concurrent.Future;
import com.ibm.darpc.DaRPCFuture;
import hpdos_rdma_offloaded.rdma_protocol.*;
import hpdos_rdma_offloaded.lib.Follower;
import hpdos_rdma_offloaded.lib.Packet;
import hpdos_rdma_offloaded.protocol.*;
public class ReplicationHandler {
......@@ -35,7 +34,7 @@ public class ReplicationHandler {
Response response = new Response();
request.setKey(packet.getKey());
request.setValue(packet.getValue());
request.setOperationType(packet.getOperationType());
request.setRequestType(packet.getOperationType());
DaRPCFuture<Request, Response> future = follower.getStream().request(request, response, false);
return future;
});
......
code/hpdos_rdma_offloaded/src/main/java/hpdos_rdma_offloaded/handler/StorageHandler.java
View file @ d16dbc01
......@@ -9,8 +9,8 @@ public class StorageHandler implements AutoCloseable{
RocksDB rocksDB;
Options rockDbOptions;
public StorageHandler(String dbpath) throws RocksDBException{
// Inititalize configurations here\
public StorageHandler(String dbpath) throws RocksDBException
{
System.out.println("Creating RocksDB");
this.rockDbOptions = new Options();
rockDbOptions.setCreateIfMissing(true);
......@@ -39,4 +39,4 @@ public class StorageHandler implements AutoCloseable{
{
rocksDB.delete(key);
}
}
}
\ No newline at end of file
code/hpdos_rdma_offloaded/src/main/java/hpdos_rdma_offloaded/lib/Follower.java
View file @ d16dbc01
package hpdos_rdma_offloaded.lib;
import com.ibm.darpc.DaRPCStream;
import hpdos_rdma_offloaded.rdma_protocol.*;
import hpdos_rdma_offloaded.protocol.*;
public class Follower {
String ipAddress;
......
code/hpdos_rdma_offloaded/src/main/java/hpdos_rdma_offloaded/lib/Packet.java
View file @ d16dbc01
package hpdos_rdma_offloaded.lib;
public class Packet {
String key;
String value;
Integer operationType;
private byte[] key;
private byte[] value;
private int operationType;
public Packet(Integer operationType, String key, String value){
public Packet(int operationType, byte[] key, byte[] value)
{
this.key = key;
this.value = value;
this.operationType = operationType;
}
public String getKey(){
public byte[] getKey()
{
return this.key;
}
public String getValue(){
public byte[] getValue()
{
return this.value;
}
public Integer getOperationType(){
public Integer getOperationType()
{
return this.operationType;
}
}
code/hpdos_rdma_offloaded/src/main/java/hpdos_rdma_offloaded/protocol/AckType.java 0 → 100644
View file @ d16dbc01
package hpdos_rdma_offloaded.protocol;
public interface AckType
{
public static int SUCCESS = 0;
public static int NOTFOUND = 1;
public static int NOTALLOWED = 2;
public static int DBFAILED = 3;
public static int SUCCESS_WITH_VALUE = 4;
}
\ No newline at end of file
code/hpdos_rdma_offloaded/src/main/java/hpdos_rdma_offloaded/protocol/Request.java 0 → 100644
View file @ d16dbc01
package hpdos_rdma_offloaded.protocol;
import java.io.IOException;
import java.nio.ByteBuffer;
import com.ibm.darpc.DaRPCMessage;
public class Request implements DaRPCMessage
{
private static int SERIALIZED_SIZE = 260;
public int requestType;
public byte[] key;
public byte[] value;
@Override
public int write(ByteBuffer buffer) throws IOException
{
System.out.println("Request Write Method");
buffer.putInt(requestType);
buffer.put(key);
//if operation type is get and delete then value is not required
if(requestType == RequestType.PUT)
{
buffer.put(value);
//size of key+value+operationType
return 4+key.length+value.length;
}
//else return size of Key+operationType
return 4+key.length;
}
@Override
public void update(ByteBuffer buffer) throws IOException
{
System.out.println("Request update method");
requestType = buffer.getInt();
if(key == null || key.length != 128)
this.key = new byte[128];
buffer.get(key);
if(requestType == RequestType.PUT)
{
if(value == null || value.length != 128)
this.value = new byte[128];
buffer.get(value);
}
}
@Override
public int size() {
//This method gives max size of request
return SERIALIZED_SIZE;
}
public byte[] getKey() {
return key;
}
public void setKey(byte[] key) {
this.key = key;
}
public byte[] getValue() {
return value;
}
public void setValue(byte[] value) {
this.value = value;
}
public int getRequestType() {
return requestType;
}
public void setRequestType(int requestType) {
this.requestType = requestType;
}
}
code/hpdos_rdma_offloaded/src/main/java/hpdos_rdma_offloaded/protocol/RequestType.java 0 → 100644
View file @ d16dbc01
package hpdos_rdma_offloaded.protocol;
public interface RequestType
{
public static int GET =101;
public static int PUT =100;
public static int DELETE =102;
public static int INVALIDATE = 103;
};
code/hpdos_rdma_offloaded/src/main/java/hpdos_rdma_offloaded/rdma_protocol/Response.java → code/hpdos_rdma_offloaded/src/main/java/hpdos_rdma_offloaded/protocol/Response.java
View file @ d16dbc01
package hpdos_rdma_offloaded.rdma_protocol;
package hpdos_rdma_offloaded.protocol;
import java.io.IOException;
import java.nio.ByteBuffer;
......@@ -6,29 +6,35 @@ import java.nio.ByteBuffer;
import com.ibm.darpc.DaRPCMessage;
public class Response implements DaRPCMessage{
public static int SERIALIZED_SIZE = 256;
public static int SERIALIZED_SIZE = 260;
private int ack;
public String key;
public String value;
private static char[] dst = new char[100];
public byte[] key;
public byte[] value;
@Override
public int write(ByteBuffer buffer) throws IOException {
System.out.println("write response");
ack = buffer.getInt();
buffer.asCharBuffer().put(key + ";" + value + ";");
return SERIALIZED_SIZE;
public int write(ByteBuffer buffer) throws IOException
{
System.out.println("Response write Method");
buffer.putInt(ack);
if(ack == AckType.SUCCESS_WITH_VALUE)
{
buffer.put(value);
return 4+value.length;
}
return 4;
}
@Override
public void update(ByteBuffer buffer) throws IOException {
System.out.println("update response");
public void update(ByteBuffer buffer) throws IOException
{
System.out.println("esponse update method");
ack = buffer.getInt();
buffer.asCharBuffer().get(dst, 0, 99);
String s = new String(dst);
s = s.trim();
String split[] = s.split(";");
key = split[0];
value = split[1];
if(ack == AckType.SUCCESS_WITH_VALUE)
{
if(value == null || value.length <128)
value = new byte[128];
buffer.get(value);
}
}
@Override
......@@ -41,23 +47,23 @@ public class Response implements DaRPCMessage{
return ack;
}
public void setAct(int ack){
public void setAck(int ack){
this.ack = ack;
}
public String getKey() {
public byte[] getKey() {
return key;
}
public void setKey(String key) {
public void setKey(byte[] key) {
this.key = key;
}
public String getValue() {
public byte[] getValue() {
return value;
}
public void setValue(String value) {
public void setValue(byte[] value) {
this.value = value;
}
}
code/hpdos_rdma_offloaded/src/main/java/hpdos_rdma_offloaded/rdma_protocol/Request.java deleted 100644 → 0
View file @ 1180756d
package hpdos_rdma_offloaded.rdma_protocol;
import java.io.IOException;
import java.nio.ByteBuffer;
import com.ibm.darpc.DaRPCMessage;
public class Request implements DaRPCMessage{
public int operationType;
public String key;
public String value;
private int SERIALIZED_SIZE = 256;
private static char[] dst = new char[100];
@Override
public int write(ByteBuffer buffer) throws IOException {
System.out.println("Write request");
buffer.putInt(operationType);
buffer.asCharBuffer().put(key + ";" + value + ";");
return SERIALIZED_SIZE;
}
@Override
public void update(ByteBuffer buffer) throws IOException {
System.out.println("update request");
operationType = buffer.getInt();
buffer.asCharBuffer().get(dst, 0, 99);
String s = new String(dst);
s = s.trim();
String split[] = s.split(";");
if(split.length >=1)
key = split[0];
if(split.length >=2)
value = split[1];
}
@Override
public int size() {
return SERIALIZED_SIZE;
}
public String getKey() {
return key;
}
public void setKey(String key) {
this.key = key;
}
public String getValue() {
return value;
}
public void setValue(String value) {
this.value = value;
}
public int getOperationType() {
return operationType;
}
public void setOperationType(int operationType) {
this.operationType = operationType;
}
}
code/hpdos_rdma_offloaded/src/main/java/hpdos_rdma_offloaded/service/MetadataServerService.java
View file @ d16dbc01
......@@ -11,9 +11,11 @@ import org.rocksdb.RocksDBException;
import hpdos_rdma_offloaded.handler.NetworkHandler;
import hpdos_rdma_offloaded.lib.Packet;
import hpdos_rdma_offloaded.rdma_protocol.Request;
import hpdos_rdma_offloaded.rdma_protocol.Response;
import hpdos_rdma_offloaded.rdma_protocol.RpcProtocol;
import hpdos_rdma_offloaded.protocol.AckType;
import hpdos_rdma_offloaded.protocol.Request;
import hpdos_rdma_offloaded.protocol.RequestType;
import hpdos_rdma_offloaded.protocol.Response;
import hpdos_rdma_offloaded.protocol.RpcProtocol;
public class MetadataServerService extends RpcProtocol implements DaRPCService<Request, Response>{
NetworkHandler networkHandler;
......@@ -26,51 +28,60 @@ public class MetadataServerService extends RpcProtocol implements DaRPCService<R
public void processServerEvent(DaRPCServerEvent<Request, Response> event) throws IOException {
Request request = event.getReceiveMessage();
Response response = event.getSendMessage();
if (request.getOperationType() == 100 ||request.getOperationType() == 102 ) {
if (request.getRequestType() == RequestType.PUT) {
// Write code for create
Packet packet = new Packet(request.getOperationType(), request.getKey(), request.getValue());
try {
Packet packet = new Packet(request.getRequestType(), request.getKey(), request.getValue());
try
{
this.networkHandler.create(packet);
response.setAct(0);
response.setAck(AckType.SUCCESS);
response.setKey(null);
response.setValue(null);
}catch(RocksDBException ex)
}
catch(RocksDBException ex)
{
ex.printStackTrace();
response.setAct(1);
response.setAck(AckType.DBFAILED);
}
catch (InterruptedException | ExecutionException e) {
e.printStackTrace();
}
}
else if(request.getOperationType() == 101) {
Packet packet = new Packet(request.getOperationType(), request.getKey(), "");
else if(request.getRequestType() == RequestType.GET) {
Packet packet = new Packet(request.getRequestType(), request.getKey(), null);
try
{
byte[] value = this.networkHandler.read(packet);
response.setAct(1);
response.setKey(packet.getKey());
response.setValue(new String(value));
if(value == null)
{
response.setAck(AckType.NOTFOUND);
}
else
{
response.setAck(AckType.SUCCESS_WITH_VALUE);
response.setValue(value);
}
}
catch(RocksDBException ex)
{
ex.printStackTrace();
response.setAct(1);
}catch (InterruptedException | ExecutionException e) {
response.setAck(AckType.DBFAILED);
}
catch (InterruptedException | ExecutionException e) {
e.printStackTrace();
}
// Write code for read
}
else if(request.getOperationType() == 103){
else if(request.getRequestType() == RequestType.DELETE){
try{
Packet packet = new Packet(request.getOperationType(), request.getKey(), "");
Packet packet = new Packet(request.getRequestType(), request.getKey(), null);
this.networkHandler.delete(packet);
response.setAct(0);
response.setAck(AckType.SUCCESS);
}
catch(RocksDBException ex)
{
ex.printStackTrace();
response.setAct(1);
response.setAck(AckType.DBFAILED);
}catch (InterruptedException | ExecutionException e) {
e.printStackTrace();
}
......@@ -86,7 +97,7 @@ public class MetadataServerService extends RpcProtocol implements DaRPCService<R
@Override
public void close(DaRPCServerEndpoint<Request, Response> rpcClientEndpoint) {
System.out.println("Closing Connection");
}
}
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