Develop Reference

AmazonsS3Client throws UnknownHostException if attempting to connect to a local service (MinIO)

In Short: Using AmazonS3Client to connect to a local instance of MinIO results in a UnknownHostException thrown because the url is resolved to http://{bucket_name}.localhost:port.
Detailed description of the problem:
I'm creating an integration test for a Java service that uses AmazonS3Client lib to retrieve content from S3. I'm using MinIO inside a test container to perform the role of Amazon S3, as follows:
#Container
static final GenericContainer<?> minioContainer = new GenericContainer<>("minio/minio:latest")
.withCommand("server /data")
.withEnv(
Map.of(
"MINIO_ACCESS_KEY", AWS_ACCESS_KEY.getValue(),
"MINIO_SECRET_KEY", AWS_SECRET_KEY.getValue()
)
)
.withExposedPorts(MINIO_PORT)
.waitingFor(new HttpWaitStrategy()
.forPath("/minio/health/ready")
.forPort(MINIO_PORT)
.withStartupTimeout(Duration.ofSeconds(10)));
and then I export its url dynamically (because test containers are deployed at a random port) using something like this:
String.format("http://%s:%s", minioContainer.getHost(), minioContainer.getFirstMappedPort())
which in turn results in a url like this:
http://localhost:54123
The problem I encountered during the runtime of my test lies within the actual implementation of AmazonS3Client.getObject(String,String) - when creating the request it performs the following validation (class S3RequestEndpointResolver, method resolveRequestEndpoint):
...
if (shouldUseVirtualAddressing(endpoint)) {
request.setEndpoint(convertToVirtualHostEndpoint(endpoint, bucketName));
request.setResourcePath(SdkHttpUtils.urlEncode(getHostStyleResourcePath(), true));
} else {
request.setEndpoint(endpoint);
request.setResourcePath(SdkHttpUtils.urlEncode(getPathStyleResourcePath(), true));
}
}
private boolean shouldUseVirtualAddressing(final URI endpoint) {
return !isPathStyleAccess && BucketNameUtils.isDNSBucketName(bucketName)
&& !isValidIpV4Address(endpoint.getHost());
}
This in turn returns true for the url http://localhost:54123 and as a result this method
private static URI convertToVirtualHostEndpoint(URI endpoint, String bucketName) {
try {
return new URI(String.format("%s://%s.%s", endpoint.getScheme(), bucketName, endpoint.getAuthority()));
} catch (URISyntaxException e) {
throw new IllegalArgumentException("Invalid bucket name: " + bucketName, e);
}
}
concatenates the name of the bucket to the host resulting in: http://mybucket.localhost:54123 and this ultimately results in a UnknownHostException to be thrown. I can work around this by setting the host to 0.0.0.0 instead of localhost, but this is hardly a solution.
Therefore I was wondering if i) this a bug/limitation in AmazonS3Client?; ii) I'm the one who is missing something, e.g. poor configuration ?
Thank you for your time

I was able to find a solution. Looking at the method used by the resolver:
private boolean shouldUseVirtualAddressing(final URI endpoint) {
return !isPathStyleAccess && BucketNameUtils.isDNSBucketName(bucketName)
&& !isValidIpV4Address(endpoint.getHost());
}
which was returning true and leading the flow to the wrong concatenation I found that we can set the first variable isPathStyleAccess when building the client. In my case, I created a bean in my test configuration to override the main one:
#Bean
#Primary
public AmazonS3 amazonS3() {
return AmazonS3Client.builder()
.withPathStyleAccessEnabled(true) //HERE
.withCredentials(new AWSStaticCredentialsProvider(
new BasicAWSCredentials(AWS_ACCESS_KEY.getValue(), AWS_SECRET_KEY.getValue())
))
.withEndpointConfiguration(
new AwsClientBuilder.EndpointConfiguration(s3Endpoint, region)
)
.build();
}

For the SDK V2, the solution was pretty similar:
S3AsyncClient s3 = S3AsyncClient.builder()
.forcePathStyle(true) // adding this one
.endpointOverride(new URI(s3Endpoint))
.credentialsProvider(() -> AwsBasicCredentials.create(s3Properties.getAccessKey(), s3Properties.getSecretKey()))
.build()

how to create a connection pool/only once for a third party Application?

I'm using JAVA/Spring MVC and I need to make a Connection Pool for a Third Party Application integration in my application becouse when i try to connect it multiple time my application and server System utilize 100% RAM.
here i have to problem, when users start to hit a specific method (callGenerationService()) multiple time, my Heap memory(RAM space) increases and becomes 100% and application going to slow becouse of it connect third party application multiple times ? here i need to create a connection only once and get it multiple times. where my connection like,
public class ClickToCallServiceImpl implements ClickToCallServiceInterface {
Client client = null;
#Override
public ClickToCall callGenerationService(ClickToCall clickToCall) {
client = new Client();
client.connect("127.0.0.1", 8021 , "password", 10); //Every time Connection Connect.
client.setEventSubscriptions("plain", "all");
// client.sendSyncApiCommand("",""); //here i run command on every hit like.
client.sendSyncApiCommand(clickToCall.command1, clickToCall.command2);
client.close();
}
}
and here 'ClickToCall' is a #Component Bean/POJO Class with variables setters and getters.
Is there, how to we create a connection (either pool or only once connect) for above connection where i connect only once and hit clickToCall.Command1 and clickToCall.Command2 multiple times and utilize less RAM? Thanks in advance.

Please note that I'm not an expert of freeswitch esl so you must check the code properly. Anyway this is what I would do.
First I create a Factory for Client
public class FreeSwitchEslClientFactory extends BasePooledObjectFactory<Client> {
#Override
public Client create() throws Exception {
//Create and connect: NOTE I'M NOT AN EXPERT OF ESL FREESWITCH SO YOU MUST CHECK IT PROPERLY
Client client = new Client();
client.connect("127.0.0.1", 8021 , "password", 10);
client.setEventSubscriptions("plain", "all");
return client;
}
#Override
public PooledObject<Client> wrap(Client obj) {
return new DefaultPooledObject<Client>(obj);
}
}
Then I create a shareable GenericObjectPool:
#Configuration
#ComponentScan(basePackages= {"it.olgna.spring.pool"})
public class CommonPoolConfig {
#Bean("clientPool")
public GenericObjectPool<Client> clientPool(){
GenericObjectPool<Client> result = new GenericObjectPool<Client>(new FreeSwitchEslClientFactory());
//Pool config e.g. max pool dimension
result.setMaxTotal(20);
return result;
}
}
Finally I use the created pool in order to get the Client obj:
#Component
public class FreeSwitchEslCommandSender {
#Autowired
#Qualifier("clientPool")
private GenericObjectPool<Client> pool;
public void sendCommand(String command, String param) throws Exception{
Client client = null;
try {
client = pool.borrowObject();
client.sendSyncApiCommand(command, param);
} finally {
if( client != null ) {
client.close();
}
pool.returnObject(client);
}
}
}
I didn't test (also because I can't) it but it should work. In any case I pray you to properly check the configuration. I don't know if it's OK to always create a Client object and connect or if it's better to connect when you want to send command
I hope it can be useful
EDIT INFORMATION
Sorry I made an error early. You must return the client to the pool
I updated my FreeSwitchEslCommandSender class
Angelo

Vertx http server Thread has been blocked for xxxx ms, time limit is 2000

i have written a large scale http server using , but im getting this error when number of concurrent requests increases
WARNING: Thread Thread[vert.x-eventloop-thread-1,5,main] has been blocked for 8458 ms, time limit is 1000
io.vertx.core.VertxException: Thread blocked
here is my full code :
public class MyVertxServer {
public Vertx vertx = Vertx.vertx(new VertxOptions().setWorkerPoolSize(100));
private HttpServer server = vertx.createHttpServer();
private Router router = Router.router(vertx);
public void bind(int port){
server.requestHandler(router::accept).listen(port);
}
public void createContext(String path,MyHttpHandler handler){
if(!path.endsWith("/")){
path += "/";
}
path+="*";
router.route(path).handler(new Handler<RoutingContext>() {
#Override
public void handle(RoutingContext ctx) {
String[] handlerID = ctx.request().uri().split(ctx.currentRoute().getPath());
String suffix = handlerID.length > 1 ? handlerID[1] : null;
handler.Handle(ctx, new VertxUtils(), suffix);
}
});
}
}
and how i call it :
ver.createContext("/getRegisterManager",new ProfilesManager.RegisterHandler());
ver.createContext("/getLoginManager", new ProfilesManager.LoginHandler());
ver.createContext("/getMapcomCreator",new ItemsManager.MapcomCreator());
ver.createContext("/getImagesManager", new ItemsManager.ImagesHandler());
ver.bind(PORT);
how ever i dont find eventbus() useful for http servers that process send/receive files , because u need to send the RoutingContext in the message with is not possible.
could you please point me to the right direction? thanks
added a little bit of handler's code:
class ProfileGetter implements MyHttpHandler{
#Override
public void Handle(RoutingContext ctx, VertxUtils utils, String suffix) {
String username = utils.Decode(ctx.request().headers().get("username"));
String lang = utils.Decode(ctx.request().headers().get("lang"));
display("profile requested : "+username);
Profile profile = ProfileManager.FindProfile(username,lang);
if(profile == null){
ctx.request().response().putHeader("available","false");
utils.sendResponseAndEnd(ctx.response(),400);
return;
}else{
ctx.request().response().putHeader("available","true");
utils.writeStringAndEnd(ctx, new Gson().toJson(profile));
}
}
}
here ProfileManager.FindProfile(username,lang) does a long running database job on the same thread
...
basically all of my processes are happening on the main thread , because if i use executor i will get strange exceptions and nullpointers in Vertx , making me feel like the request proccessors in Vertx are parallel

Given the small amount of code in the question lets agree that the problem is on the line:
Profile profile = ProfileManager.FindProfile(username,lang);
Assuming that this is internally doing some blocking JDBC call which is a anti-pattern in Vert.x you can solve this in several ways.
Say that you can totally refactor the ProfileManager class which IMO is the best then you can update it to be reactive, so your code would be like:
ProfileManager.FindProfile(username,lang, res -> {
if (res.failed()) {
// handle error, sent 500 back, etc...
} else {
Profile profile = res.result();
if(profile == null){
ctx.request().response().putHeader("available","false");
utils.sendResponseAndEnd(ctx.response(),400);
return;
}else{
ctx.request().response().putHeader("available","true");
utils.writeStringAndEnd(ctx, new Gson().toJson(profile));
}
}
});
Now what would be hapening behind the scenes is that your JDBC call would not block (which is tricky because JDBC is blocking by nature). So to fix this and you're lucky enough to use MySQL or Postgres then you could code your JDBC against the async-client if you're stuck with other RDBMS servers then you need to use the jdbc-client which in turn will use a thread pool to offload the work from the event loop thread.
Now say that you cannot change the ProfileManager code then you can still off load it to the thread pool by wrapping the code in a executeBlocking block:
vertx.executeBlocking(future -> {
Profile profile = ProfileManager.FindProfile(username,lang);
future.complete(profile);
}, false, res -> {
if (res.failed()) {
// handle error, sent 500 back, etc...
} else {
Profile profile = res.result();
if(profile == null){
ctx.request().response().putHeader("available","false");
utils.sendResponseAndEnd(ctx.response(),400);
return;
}else{
ctx.request().response().putHeader("available","true");
utils.writeStringAndEnd(ctx, new Gson().toJson(profile));
}
}
});

Updating Dropwizard config at runtime

Is it possible to have my app update the config settings at runtime? I can easily expose the settings I want in my UI but is there a way to allow the user to update settings and make them permanent ie save them to the config.yaml file? The only way I can see it to update the file by hand then restart the server which seems a bit limiting.

Yes. It is possible to reload the service classes at runtime.
Dropwizard by itself does not have the way to reload the app, but jersey has.
Jersey uses a container object internally to maintain the running application. Dropwizard uses the ServletContainer class of Jersey to run the application.
How to reload the app without restarting it -
Get a handle to the container used internally by jersey
You can do this by registering a AbstractContainerLifeCycleListener in Dropwizard Environment before starting the app. and implement its onStartup method as below -
In your main method where you start the app -
//getting the container instance
environment.jersey().register(new AbstractContainerLifecycleListener() {
#Override
public void onStartup(Container container) {
//initializing container - which will be used to reload the app
_container = container;
}
});
Add a method to your app to reload the app. It will take in the list of string which are the names of the service classes you want to reload. This method will call the reload method of the container with the new custom DropWizardConfiguration instance.
In your Application class
public static synchronized void reloadApp(List<String> reloadClasses) {
DropwizardResourceConfig dropwizardResourceConfig = new DropwizardResourceConfig();
for (String className : reloadClasses) {
try {
Class<?> serviceClass = Class.forName(className);
dropwizardResourceConfig.registerClasses(serviceClass);
System.out.printf(" + loaded class %s.\n", className);
} catch (ClassNotFoundException ex) {
System.out.printf(" ! class %s not found.\n", className);
}
}
_container.reload(dropwizardResourceConfig);
}
For more details see the example documentation of jersey - jersey example for reload
Consider going through the code and documentation of following files in Dropwizard/Jersey for a better understanding -
Container.java
ContainerLifeCycleListener.java
ServletContainer.java
AbstractContainerLifeCycleListener.java
DropWizardResourceConfig.java
ResourceConfig.java

No.
Yaml file is parsed at startup and given to the application as Configuration object once and for all. I believe you can change the file after that but it wouldn't affect your application until you restart it.
Possible follow up question: Can one restart the service programmatically?
AFAIK, no. I've researched and read the code somewhat for that but couldn't find a way to do that yet. If there is, I'd love to hear that :).

I made a task that reloads the main yaml file (it would be useful if something in the file changes). However, it is not reloading the environment. After researching this, Dropwizard uses a lot of final variables and it's quite hard to reload these on the go, without restarting the app.
class ReloadYAMLTask extends Task {
private String yamlFileName;
ReloadYAMLTask(String yamlFileName) {
super("reloadYaml");
this.yamlFileName = yamlFileName;
}
#Override
public void execute(ImmutableMultimap<String, String> parameters, PrintWriter output) throws Exception {
if (yamlFileName != null) {
ConfigurationFactoryFactory configurationFactoryFactory = new DefaultConfigurationFactoryFactory<ReportingServiceConfiguration>();
ValidatorFactory validatorFactory = Validation.buildDefaultValidatorFactory();
Validator validator = validatorFactory.getValidator();
ObjectMapper objectMapper = Jackson.newObjectMapper();
final ConfigurationFactory<ServiceConfiguration> configurationFactory = configurationFactoryFactory.create(ServiceConfiguration.class, validator, objectMapper, "dw");
File confFile = new File(yamlFileName);
configurationFactory.build(new File(confFile.toURI()));
}
}
}

You can change the configuration in the YAML and read it while your application is running. This will not however restart the server or change any server configurations. You will be able to read any changed custom configurations and use them. For example, you can change the logging level at runtime or reload other custom settings.
My solution -
Define a custom server command. You should use this command to start your application instead of the "server" command.
ArgsServerCommand.java
public class ArgsServerCommand<WC extends WebConfiguration> extends EnvironmentCommand<WC> {
private static final Logger LOGGER = LoggerFactory.getLogger(ArgsServerCommand.class);
private final Class<WC> configurationClass;
private Namespace _namespace;
public static String COMMAND_NAME = "args-server";
public ArgsServerCommand(Application<WC> application) {
super(application, "args-server", "Runs the Dropwizard application as an HTTP server specific to my settings");
this.configurationClass = application.getConfigurationClass();
}
/*
* Since we don't subclass ServerCommand, we need a concrete reference to the configuration
* class.
*/
#Override
protected Class<WC> getConfigurationClass() {
return configurationClass;
}
public Namespace getNamespace() {
return _namespace;
}
#Override
protected void run(Environment environment, Namespace namespace, WC configuration) throws Exception {
_namespace = namespace;
final Server server = configuration.getServerFactory().build(environment);
try {
server.addLifeCycleListener(new LifeCycleListener());
cleanupAsynchronously();
server.start();
} catch (Exception e) {
LOGGER.error("Unable to start server, shutting down", e);
server.stop();
cleanup();
throw e;
}
}
private class LifeCycleListener extends AbstractLifeCycle.AbstractLifeCycleListener {
#Override
public void lifeCycleStopped(LifeCycle event) {
cleanup();
}
}
}
Method to reload in your Application -
_ymlFilePath = null; //class variable
public static boolean reloadConfiguration() throws IOException, ConfigurationException {
boolean reloaded = false;
if (_ymlFilePath == null) {
List<Command> commands = _configurationBootstrap.getCommands();
for (Command command : commands) {
String commandName = command.getName();
if (commandName.equals(ArgsServerCommand.COMMAND_NAME)) {
Namespace namespace = ((ArgsServerCommand) command).getNamespace();
if (namespace != null) {
_ymlFilePath = namespace.getString("file");
}
}
}
}
ConfigurationFactoryFactory configurationFactoryFactory = _configurationBootstrap.getConfigurationFactoryFactory();
ValidatorFactory validatorFactory = _configurationBootstrap.getValidatorFactory();
Validator validator = validatorFactory.getValidator();
ObjectMapper objectMapper = _configurationBootstrap.getObjectMapper();
ConfigurationSourceProvider provider = _configurationBootstrap.getConfigurationSourceProvider();
final ConfigurationFactory<CustomWebConfiguration> configurationFactory = configurationFactoryFactory.create(CustomWebConfiguration.class, validator, objectMapper, "dw");
if (_ymlFilePath != null) {
// Refresh logging level.
CustomWebConfiguration webConfiguration = configurationFactory.build(provider, _ymlFilePath);
LoggingFactory loggingFactory = webConfiguration.getLoggingFactory();
loggingFactory.configure(_configurationBootstrap.getMetricRegistry(), _configurationBootstrap.getApplication().getName());
// Get my defined custom settings
CustomSettings customSettings = webConfiguration.getCustomSettings();
reloaded = true;
}
return reloaded;
}

Although this feature isn't supported out of the box by dropwizard, you're able to accomplish this fairly easy with the tools they give you.
Before I get started, note that this isn't a complete solution for the question asked as it doesn't persist the updated config values to the config.yml. However, this would be easy enough to implement yourself simply by writing to the config file from the application. If anyone would like to write this implementation feel free to open a PR on the example project I've linked below.
Code
Start off with a minimal config:
config.yml
myConfigValue: "hello"
And it's corresponding configuration file:
ExampleConfiguration.java
public class ExampleConfiguration extends Configuration {
private String myConfigValue;
public String getMyConfigValue() {
return myConfigValue;
}
public void setMyConfigValue(String value) {
myConfigValue = value;
}
}
Then create a task which updates the config:
UpdateConfigTask.java
public class UpdateConfigTask extends Task {
ExampleConfiguration config;
public UpdateConfigTask(ExampleConfiguration config) {
super("updateconfig");
this.config = config;
}
#Override
public void execute(Map<String, List<String>> parameters, PrintWriter output) {
config.setMyConfigValue("goodbye");
}
}
Also for demonstration purposes, create a resource which allows you to get the config value:
ConfigResource.java
#Path("/config")
public class ConfigResource {
private final ExampleConfiguration config;
public ConfigResource(ExampleConfiguration config) {
this.config = config;
}
#GET
public Response handleGet() {
return Response.ok().entity(config.getMyConfigValue()).build();
}
}
Finally wire everything up in your application:
ExampleApplication.java (exerpt)
environment.jersey().register(new ConfigResource(configuration));
environment.admin().addTask(new UpdateConfigTask(configuration));
Usage
Start up the application then run:
$ curl 'http://localhost:8080/config'
hello
$ curl -X POST 'http://localhost:8081/tasks/updateconfig'
$ curl 'http://localhost:8080/config'
goodbye
How it works
This works simply by passing the same reference to the constructor of ConfigResource.java and UpdateConfigTask.java. If you aren't familiar with the concept see here:
Is Java "pass-by-reference" or "pass-by-value"?
The linked classes above are to a project I've created which demonstrates this as a complete solution. Here's a link to the project:
scottg489/dropwizard-runtime-config-example
Footnote: I haven't verified this works with the built in configuration. However, the dropwizard Configuration class which you need to extend for your own configuration does have various "setters" for internal configuration, but it may not be safe to update those outside of run().
Disclaimer: The project I've linked here was created by me.

connection to a red5 remote shared object from a flex app

I'm writing a Flex application.
The server side application is Java application that is on top of Red5 1.0.
that connection is made throught RTMPE protcol. (the results are the same with RTMP or RTMPE).
I have am able to properly connect to the server and enter and leave rooms, but I am not able to connect to a shared object in a room. using a non-persistent shared object.
I create a shared object in a room in the server side using the following code:
private void createSharedObject (IScope scope, String soName, boolean persistent) {
ISharedObjectService service= (ISharedObjectService) ScopeUtils
.getScopeService(scope,
ISharedObjectService.class,
false);
service.createSharedObject(scope, soName, persistent);
}
private ISharedObject getSharedObject(IScope scope, String soName,boolean persistent) {
ISharedObjectService service = (ISharedObjectService) ScopeUtils
.getScopeService(scope,
ISharedObjectService.class,
false);
return service.getSharedObject(scope, soName,persistent);
}
public ISharedObject getRoomSharedObject() {
final String soName = "room_" + this._scope.getName();
log.debug("application found. creating shared object");
log.debug("shared object: {} not found for scope: {}. creating one",new Object[]{soName,this._scope.getContextPath()});
createSharedObject(this._scope, soName, XpoConstants.persistentSharedObjects);
ISharedObject so = getSharedObject(this._scope,soName, XpoConstants.persistentSharedObjects);
so.clear();
return so;
}
then the user enters the proper room I get the connction, and invoke a function at his end and provide the Shared Object name so he will know what to to connect to using the following code:
IConnection conn = Red5.getConnectionLocal();
IServiceCapableConnection sc = (IServiceCapableConnection) conn;
sc.invoke("<function name>", new Object[]{this._so.getName(),...});
now in the client side,
I use the following code in the flex application to get the remote shared object:
var roomSharedObject:SharedObject = SharedObject.getRemote(soName, SharedUtils.getNetConnection().uri, Finals.persistentSharedObject);
roomSharedObject.addEventListener(NetStatusEvent.NET_STATUS, this._parse);
roomSharedObject.addEventListener(SyncEvent.SYNC,this._parse2);
roomSharedObject.connect(SharedUtils.getNetConnection());
...
private function _parse(e:NetStatusEvent):void {
trace("NETSTATUSEVENT");
trace("########## EVENT INFO CODE: " + e.info.code);
}
private function _parse2(e:SyncEvent):void {
trace("SYNCEVENT");
}
the only message that I get from red5 is the following:
[INFO] [pool-8-thread-12] org.red5.server.so.SharedObject - Deleting shared object room_3963 because all clients disconnected and it is no longer acquired.
I would guess that NetStatusEvent should be triggered would some kind of error message
but I get no trace messages at all! and the only thing that I get from red5 is that the shared object is deleted which means that that client tried to connect for a sec and disconnected.
I tired to google, tired the red5 google group. i'm lost!
any information regarding the issue would be greatly appreciated.
thank you!
update
ok I created a smaller client and server..
at the server, the appConnect function just return true.
the client is a flex 4.6 client with the following code:
<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:s="library://ns.adobe.com/flex/spark"
xmlns:mx="library://ns.adobe.com/flex/mx" minWidth="955" creationComplete="init()"
minHeight="600">
<fx:Declarations>
<!-- Place non-visual elements (e.g., services, value objects) here -->
</fx:Declarations>
<fx:Script>
<![CDATA[
import mx.controls.Alert;
private var nc:NetConnection = new NetConnection();
private function init():void {
nc.proxyType = "best";
nc.objectEncoding = ObjectEncoding.AMF0;
nc.addEventListener (NetStatusEvent.NET_STATUS,checkConnect);
nc.connect("rtmpe://127.0.0.1/ufktest");
}
private function checkConnect (event:NetStatusEvent):void
{
switch (event.info['code']) {
case 'NetConnection.Connect.Success':
{
_red5Connected();
trace('connected succesfully');
break;
}
case 'NetConnection.Connect.Closed':
{
_red5Disconnected();
trace('connection closed');
break;
}
case 'NetConnection.Connect.Rejected':
{
_red5Disconnected();
trace('connection rejected' );
break;
}
case 'NetConnection.Connect.Failed':
{
_red5Disconnected();
trace('connection failed');
break;
}
case 'NetConnection.Connect.AppShutDown':
{
trace('app shut down');
_red5Disconnected();
break;
}
default:
{
trace("unknown netconenction status: " + event.info['code']);
break;
}
}
}
private function _red5Connected():void {
trace("red5 connection was successful");
var roomSharedObject:SharedObject = SharedObject.getRemote("moshe",nc.uri,false);
roomSharedObject.addEventListener(NetStatusEvent.NET_STATUS, _parse);
roomSharedObject.addEventListener(SyncEvent.SYNC,_parse2);
roomSharedObject.connect(nc);
}
private function _parse(e:NetStatusEvent):void {
trace("NETSTATUSEVENT");
trace("########## EVENT INFO CODE: " + e.info.code);
}
private function _parse2(e:SyncEvent):void {
trace("SYNCEVENT");
}
private static function _red5Disconnected():void {
trace("disconnected from red5");
Alert.show("could not connect to server, please try again later");
}
]]>
</fx:Script>
and still when I run the client application it connects to the server and give me the following error:
[INFO] [pool-8-thread-15] org.red5.server.so.SharedObject - Deleting shared object moshe because all clients disconnected and it is no longer acquired.

Any more logs? However your log suggests that the shared object was created successfully on the server.Try using acquire() method on creation of the shared object inside roomStart() or wherever you are creating it(roomStart() should be the right place though). Server by default would destroy any shared object if no client is connected.

This seems like an overly complex way to do this. If you use the Flex method SharedObject::getRemote all of this will be taken care of for you. If the object exists the client will get a copy. If it doesn't exist the object will be created. So first person in 'the room' creates the object and anyone that shows up later will get a copy.