Develop Reference

Executing Sample Flink kafka consummer

I'm trying to create a simple Flink Kafka consumer
public class ReadFromKafka {
public static void main(String[] args) throws Exception {
// create execution environment
StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();
Properties properties = new Properties();
properties.setProperty("bootstrap.servers", "localhost:9092");
properties.setProperty("group.id", "flink_consumer");
DataStream<String> stream = env
.addSource(new FlinkKafkaConsumer09<>("test", new SimpleStringSchema(), properties));
stream.map(new MapFunction<String, String>() {
private static final long serialVersionUID = -6867736771747690202L;
#Override
public String map(String value) throws Exception {
return "Stream Value: " + value;
}
}).print();
env.execute();
}
}
It is giving me this error :
INFO org.apache.kafka.common.utils.AppInfoParser - Kafka version: 2.3.0
16:47:28,448 INFO org.apache.kafka.common.utils.AppInfoParser - Kafka commitId: fc1aaa116b661c8a
16:47:28,448 INFO org.apache.kafka.common.utils.AppInfoParser - Kafka startTimeMs: 1563029248441
16:47:28,451 INFO org.apache.flink.streaming.connectors.kafka.FlinkKafkaConsumer09 - Trying to get partitions for topic test
16:47:28,775 INFO org.apache.kafka.clients.Metadata - [Consumer clientId=consumer-1, groupId=flink_consumer] Cluster ID: 4rz71KZCS_CSasZMrFBNKw
16:47:29,858 INFO org.apache.flink.streaming.connectors.kafka.FlinkKafkaConsumer09 - Got 1 partitions from these topics: [test]
16:47:29,859 INFO org.apache.flink.streaming.connectors.kafka.FlinkKafkaConsumerBase - Consumer is going to read the following topics (with number of partitions):
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/flink/api/java/operators/Keys
at org.apache.flink.streaming.api.environment.StreamExecutionEnvironment.addSource(StreamExecutionEnvironment.java:994)
at org.apache.flink.streaming.api.environment.StreamExecutionEnvironment.addSource(StreamExecutionEnvironment.java:955)
at myflink.ReadFromKafka.main(ReadFromKafka.java:43)
Caused by: java.lang.ClassNotFoundException: org.apache.flink.api.java.operators.Keys
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:583)
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
... 3 more
Process finished with exit code 1

According to your stack-trace, java could not find a class.
Caused by: java.lang.ClassNotFoundException: org.apache.flink.api.java.operators.Keys
This class is in the flink-java_2.11 jar file which you might have missed from your dependencies.
https://www.javadoc.io/doc/org.apache.flink/flink-java_2.11/0.10.2

Working OPC UA Simulator example using OPCFoundation/UA-Java project

Anyone having simulator example of OPC UA, I am using OPC UA project https://github.com/OPCFoundation/UA-Java .
I have tried all the server mentioned on this git hub page, but none of them are working for me https://github.com/node-opcua/node-opcua/wiki/publicly-available-OPCUA-servers.
I am using org.opcfoundation.ua.examples.SampleClient utility to check connection and sample values, but not able to do so. If any one having working exampe w.r.t this please share along with code. Once this working I need to configure this setting in apache Nifi to make data pipeline.
code:
public class SampleClient {
public static final Locale ENGLISH = Locale.ENGLISH;
public static final Locale ENGLISH_FINLAND = new Locale("en", "FI");
public static final Locale ENGLISH_US = new Locale("en", "US");
public static final Locale FINNISH = new Locale("fi");
public static final Locale FINNISH_FINLAND = new Locale("fi", "FI");
public static final Locale GERMAN = Locale.GERMAN;
public static final Locale GERMAN_GERMANY = new Locale("de", "DE");
public static void main(String[] args)
throws Exception {
// if (args.length==0) {
// System.out.println("Usage: SampleClient [server uri]");
// return;
// }
//String url = /*args[0]*/"opc.tcp://uademo.prosysopc.com:53530/OPCUA/SimulationServer";
//String url = /*args[0]*/"opc.tcp://uademo.prosysopc.com:53530";
//String url = /*args[0]*/"opc.tcp://opcua.demo-this.com:51210/UA/SampleServer";
String url="opc.tcp://mfactorengineering.com:4840";
//String url="opc.tcp://commsvr.com:51234/UA/CAS_UA_Server";
//String url="opc.tcp://uademo.prosysopc.com:53530/OPCUA/SimulationServer";
//String url="opc.tcp://opcua.demo-this.com:51210/UA/SampleServer";
//String url="opc.tcp://opcua.demo-this.com:51211/UA/SampleServer";
//String url="opc.tcp://opcua.demo-this.com:51212/UA/SampleServer";
//String url="opc.tcp://demo.ascolab.com:4841";
//String url="opc.tcp://alamscada.dynu.com:4096";
System.out.print("SampleClient: Connecting to "+url+" .. ");
////////////// CLIENT //////////////
// Create Client
Application myApplication = new Application();
Client myClient = new Client(myApplication);
myApplication.addLocale( ENGLISH );
myApplication.setApplicationName( new LocalizedText("Java Sample Client", Locale.ENGLISH) );
myApplication.setProductUri( "urn:JavaSampleClient" );
CertificateUtils.setKeySize(1024); // default = 1024
KeyPair pair = ExampleKeys.getCert("SampleClient");
myApplication.addApplicationInstanceCertificate( pair );
// The HTTPS SecurityPolicies are defined separate from the endpoint securities
myApplication.getHttpsSettings().setHttpsSecurityPolicies(HttpsSecurityPolicy.ALL);
// Peer verifier
myApplication.getHttpsSettings().setHostnameVerifier( SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER );
myApplication.getHttpsSettings().setCertificateValidator( CertificateValidator.ALLOW_ALL );
// The certificate to use for HTTPS
KeyPair myHttpsCertificate = ExampleKeys.getHttpsCert("SampleClient");
myApplication.getHttpsSettings().setKeyPair( myHttpsCertificate );
// Connect to the given uri
SessionChannel mySession = myClient.createSessionChannel(url);
// mySession.activate("username", "123");
mySession.activate();
//////////////////////////////////////
///////////// EXECUTE //////////////
// Browse Root
BrowseDescription browse = new BrowseDescription();
browse.setNodeId( Identifiers.RootFolder );
browse.setBrowseDirection( BrowseDirection.Forward );
browse.setIncludeSubtypes( true );
browse.setNodeClassMask( NodeClass.Object, NodeClass.Variable );
browse.setResultMask( BrowseResultMask.All );
BrowseResponse res3 = mySession.Browse( null, null, null, browse );
System.out.println(res3);
// Read Namespace Array
ReadResponse res5 = mySession.Read(
null,
null,
TimestampsToReturn.Neither,
new ReadValueId(Identifiers.Server_NamespaceArray, Attributes.Value, null, null )
);
String[] namespaceArray = (String[]) res5.getResults()[0].getValue().getValue();
System.out.println(Arrays.toString(namespaceArray));
// Read a variable
ReadResponse res4 = mySession.Read(
null,
500.0,
TimestampsToReturn.Source,
new ReadValueId(new NodeId(6, 1710), Attributes.Value, null, null )
);
System.out.println(res4);
res4 = mySession.Read(
null,
500.0,
TimestampsToReturn.Source,
new ReadValueId(new NodeId(6, 1710), Attributes.DataType, null, null )
);
System.out.println(res4);
///////////// SHUTDOWN /////////////
mySession.close();
mySession.closeAsync();
//////////////////////////////////////
}
}
exception:
SampleClient: Connecting to opc.tcp://mfactorengineering.com:4840 .. 2017-07-20 11:24:34,909 [main] INFO CryptoUtil - SecurityProvider initialized from org.bouncycastle.jce.provider.BouncyCastleProvider
2017-07-20 11:24:34,909 [main] INFO CryptoUtil - Using SecurityProvider BC
2017-07-20 11:24:35,549 [main] INFO TcpConnection - mfactorengineering.com/184.173.118.46:4840 Connecting
2017-07-20 11:24:36,142 [main] INFO TcpConnection - mfactorengineering.com/184.173.118.46:4840 Connected
2017-07-20 11:24:36,753 [main] INFO SecureChannelTcp - 1804305022 Closed
2017-07-20 11:24:36,768 [TcpConnection/Read] INFO TcpConnection - mfactorengineering.com/184.173.118.46:4840 Closed (expected)
2017-07-20 11:24:36,768 [main] INFO TcpConnection - mfactorengineering.com/184.173.118.46:4840 Closed
2017-07-20 11:24:36,768 [main] INFO TcpConnection - mfactorengineering.com/184.173.118.46:4840 Connecting
2017-07-20 11:24:37,408 [main] INFO TcpConnection - mfactorengineering.com/184.173.118.46:4840 Connect failed
java.net.SocketException: Connection reset
at java.net.SocketInputStream.read(SocketInputStream.java:209)
at java.net.SocketInputStream.read(SocketInputStream.java:141)
at java.net.SocketInputStream.read(SocketInputStream.java:223)
at org.opcfoundation.ua.utils.bytebuffer.InputStreamReadable._get(InputStreamReadable.java:53)
at org.opcfoundation.ua.utils.bytebuffer.InputStreamReadable.getInt(InputStreamReadable.java:144)
at org.opcfoundation.ua.transport.tcp.io.TcpConnection.open(TcpConnection.java:500)
at org.opcfoundation.ua.transport.tcp.io.SecureChannelTcp.open(SecureChannelTcp.java:565)
at org.opcfoundation.ua.application.Client.createSecureChannel(Client.java:641)
at org.opcfoundation.ua.application.Client.createSecureChannel(Client.java:555)
at org.opcfoundation.ua.application.Client.createSessionChannel(Client.java:370)
at org.opcfoundation.ua.application.Client.createSessionChannel(Client.java:345)
at org.opcfoundation.ua.examples.SampleClient.main(SampleClient.java:120)
2017-07-20 11:24:37,464 [main] WARN SecureChannelTcp - Connection failed: Bad_CommunicationError (code=0x80050000, description="2147811328, Connection reset")
2017-07-20 11:24:37,464 [main] WARN SecureChannelTcp - Bad_CommunicationError: Retrying
2017-07-20 11:24:37,464 [main] INFO TcpConnection - mfactorengineering.com/184.173.118.46:4840 Connecting
2017-07-20 11:24:38,056 [main] INFO TcpConnection - mfactorengineering.com/184.173.118.46:4840 Connected
2017-07-20 11:24:38,368 [TcpConnection/Read] WARN TcpConnection - mfactorengineering.com/184.173.118.46:4840 Error
org.opcfoundation.ua.common.ServiceResultException: Bad_SecurityChecksFailed (code=0x80130000, description="An error occurred verifying security")
at org.opcfoundation.ua.transport.tcp.io.TcpConnection$ReadThread.run(TcpConnection.java:782)
2017-07-20 11:24:38,368 [TcpConnection/Read] INFO TcpConnection - mfactorengineering.com/184.173.118.46:4840 Closed
Exception in thread "main" org.opcfoundation.ua.common.ServiceResultException: Bad_SecurityChecksFailed (code=0x80130000, description="An error occurred verifying security")
at org.opcfoundation.ua.transport.tcp.io.TcpConnection$ReadThread.run(TcpConnection.java:782)

The example is written such that it always selects the most secure connection, which on the other hand requires that the server accepts the Application Instance Certificate of the client application, before it enables the connection. Bad_SecurityChecksFailed is the standard error code from the server, when it does not accept the client connection.
Since you cannot control these publicly available servers to make them trust your client application, your only alternative is to try to connect without security, if the server allows that.
For this, you need to change the code so that it picks an insecure endpoint.
Replace
SessionChannel mySession = myClient.createSessionChannel(url);
with
EndpointDescription[] endpoints = myClient.discoverEndpoints(url);
// Filter out all but opc.tcp protocol endpoints
endpoints = selectByProtocol(endpoints, "opc.tcp");
// Filter out all but Signed & Encrypted endpoints
endpoints = selectByMessageSecurityMode(endpoints, MessageSecurityMode.None);
// Choose one endpoint
if (endpoints.length == 0)
throw new Exception("The server does not support insecure connections");
EndpointDescription endpoint = endpoints[0];
//////////////////////////////////////
SessionChannel mySession = myClient.createSessionChannel(endpoint);
(according to the lines of ClientExample1)

InvalidServerSideConfigurationException when creating cache using XML

I'm new with terracotta. I want to create a clustered server cache but found some difficulties with configuration files.
Here is my tc-config-terracotta.xml file (with which I launch terracotta server)
<?xml version="1.0" encoding="UTF-8"?>
<tc-config xmlns="http://www.terracotta.org/config"
xmlns:ohr="http://www.terracotta.org/config/offheap-resource">
<servers>
<server host="localhost" name="clustered">
<logs>/path/log/terracotta/server-logs</logs>
</server>
</servers>
<plugins>
<config>
<ohr:offheap-resources>
<ohr:resource name="primary-server-resource" unit="MB">128
</ohr:resource>
<ohr:resource name="secondary-server-resource" unit="MB">96
</ohr:resource>
</ohr:offheap-resources>
</config>
</plugins>
</tc-config>
I used the ehcache-clustered-3.3.1-kit to launch the server.
$myPrompt/some/dir/with/ehcache/clustered/server/bin>./start-tc-server.sh -f /path/to/conf/tc-config-terracotta.xml
No problem for the server to start
2017-06-01 11:29:14,052 INFO - New logging session started.
2017-06-01 11:29:14,066 INFO - Terracotta 5.2.2, as of 2017-03-29 at 15:26:20 PDT (Revision 397a456cfe4b8188dfe8b017a5c14346f79c2fcf from UNKNOWN)
2017-06-01 11:29:14,067 INFO - PID is 6114
2017-06-01 11:29:14,697 INFO - Successfully loaded base configuration from file at '/path/to/conf/tc-config-terracotta.xml'.
2017-06-01 11:29:14,757 INFO - Available Max Runtime Memory: 1822MB
2017-06-01 11:29:14,836 INFO - Log file: '/path/log/terracotta/server-logs/terracotta-server.log'.
2017-06-01 11:29:15,112 INFO - Becoming State[ ACTIVE-COORDINATOR ]
2017-06-01 11:29:15,129 INFO - Terracotta Server instance has started up as ACTIVE node on 0:0:0:0:0:0:0:0:9510 successfully, and is now ready for work.
Here is the ehcache-terracotta.xml configuration file
<ehcache:config xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance'
xmlns:terracotta='http://www.ehcache.org/v3/clustered'
xmlns:ehcache='http://www.ehcache.org/v3'
xsi:schemaLocation="http://www.ehcache.org/v3 http://www.ehcache.org/schema/ehcache-core-3.3.xsd
http://www.ehcache.org/v3/clustered http://www.ehcache.org/schema/ehcache-clustered-ext-3.3.xsd">
<ehcache:service>
<terracotta:cluster>
<terracotta:connection url="terracotta://localhost:9510/clustered" />
<terracotta:server-side-config
auto-create="true">
<terracotta:default-resource from="primary-server-resource" />
</terracotta:server-side-config>
</terracotta:cluster>
</ehcache:service>
<ehcache:cache alias="myTest">
<ehcache:key-type>java.lang.String</ehcache:key-type>
<ehcache:value-type>java.lang.String</ehcache:value-type>
<ehcache:resources>
<terracotta:clustered-dedicated unit="MB">10
</terracotta:clustered-dedicated>
</ehcache:resources>
<terracotta:clustered-store consistency="strong" />
</ehcache:cache>
</ehcache:config>
I have a class to test the conf:
import java.net.URL;
import org.ehcache.Cache;
import org.ehcache.CacheManager;
import org.ehcache.config.Configuration;
import org.ehcache.config.builders.CacheManagerBuilder;
import org.ehcache.xml.XmlConfiguration;
public class TestTerracottaCacheManager
{
private static TestTerracottaCacheManager cacheManager = null;
private CacheManager cm;
private Cache<Object, Object> cache;
private static final String DEFAULT_CACHE_NAME = "myTest";
private String cacheName;
public static TestTerracottaCacheManager getInstance()
{
if (cacheManager == null)
{
cacheManager = new TestTerracottaCacheManager();
}
return cacheManager;
}
private TestTerracottaCacheManager()
{
// 1. Create a cache manager
final URL url =
TestTerracottaCacheManager.class.getResource("/ehcache-terracotta.xml");
System.out.println(url);
Configuration xmlConfig = new XmlConfiguration(url);
cm = CacheManagerBuilder.newCacheManager(xmlConfig);
cm.init();
intializeCache();
}
private void intializeCache()
{
// 2. Get a cache called "cache1", declared in ehcache.xml
cache = cm.getCache(cacheName == null ? DEFAULT_CACHE_NAME : cacheName,
Object.class, Object.class);
if (cache == null)
{
throw new NullPointerException();
}
}
public void put(Object key, Object value)
{
cache.put(key, value);
}
public Object get(String key)
{
// 5. Print out the element
Object ele = cache.get(key);
return ele;
}
public boolean isKeyInCache(Object key)
{
return cache.containsKey(key);
}
public void closeCache()
{
// 7. shut down the cache manager
cm.close();
}
public static void main(String[] args)
{
TestTerracottaCacheManager testCache = TestTerracottaCacheManager.getInstance();
testCache.put("titi", "1");
System.out.println(testCache.get("titi"));
testCache.closeCache();
}
public String getCacheName()
{
return cacheName;
}
public void setCacheName(String cacheName)
{
this.cacheName = cacheName;
}
}
I've got an exception. Here it's the stack trace:
14:18:38.978 [main] ERROR org.ehcache.core.EhcacheManager - Initialize failed.
Exception in thread "main" org.ehcache.StateTransitionException: Unable to validate cluster tier manager for id clustered
at org.ehcache.core.StatusTransitioner$Transition.failed(StatusTransitioner.java:235)
at org.ehcache.core.EhcacheManager.init(EhcacheManager.java:587)
at fr.test.cache.TestTerracottaCacheManager.<init>(TestTerracottaCacheManager.java:41)
at fr.test.cache.TestTerracottaCacheManager.getInstance(TestTerracottaCacheManager.java:28)
at fr.test.cache.TestTerracottaCacheManager.main(TestTerracottaCacheManager.java:81)
Caused by: org.ehcache.clustered.client.internal.ClusterTierManagerValidationException: Unable to validate cluster tier manager for id clusteredENS
at org.ehcache.clustered.client.internal.ClusterTierManagerClientEntityFactory.retrieve(ClusterTierManagerClientEntityFactory.java:196)
at org.ehcache.clustered.client.internal.service.DefaultClusteringService.autoCreateEntity(DefaultClusteringService.java:215)
at org.ehcache.clustered.client.internal.service.DefaultClusteringService.start(DefaultClusteringService.java:148)
at org.ehcache.core.internal.service.ServiceLocator.startAllServices(ServiceLocator.java:118)
at org.ehcache.core.EhcacheManager.init(EhcacheManager.java:559)
... 3 more
Caused by: org.ehcache.clustered.common.internal.exceptions.InvalidServerSideConfigurationException: Default resource not aligned. Client: primary-server-resource Server: null
at org.ehcache.clustered.common.internal.exceptions.InvalidServerSideConfigurationException.withClientStackTrace(InvalidServerSideConfigurationException.java:43)
at org.ehcache.clustered.common.internal.exceptions.InvalidServerSideConfigurationException.withClientStackTrace(InvalidServerSideConfigurationException.java:22)
at org.ehcache.clustered.common.internal.messages.ResponseCodec.decode(ResponseCodec.java:197)
at org.ehcache.clustered.common.internal.messages.EhcacheCodec.decodeResponse(EhcacheCodec.java:110)
at org.ehcache.clustered.common.internal.messages.EhcacheCodec.decodeResponse(EhcacheCodec.java:37)
at com.tc.object.EntityClientEndpointImpl$InvocationBuilderImpl$1.getWithTimeout(EntityClientEndpointImpl.java:193)
at com.tc.object.EntityClientEndpointImpl$InvocationBuilderImpl$1.getWithTimeout(EntityClientEndpointImpl.java:175)
at org.ehcache.clustered.client.internal.SimpleClusterTierManagerClientEntity.waitFor(SimpleClusterTierManagerClientEntity.java:184)
at org.ehcache.clustered.client.internal.SimpleClusterTierManagerClientEntity.invokeInternal(SimpleClusterTierManagerClientEntity.java:148)
at org.ehcache.clustered.client.internal.SimpleClusterTierManagerClientEntity.validate(SimpleClusterTierManagerClientEntity.java:120)
at org.ehcache.clustered.client.internal.ClusterTierManagerClientEntityFactory.retrieve(ClusterTierManagerClientEntityFactory.java:190)
... 7 more
Caused by: org.ehcache.clustered.common.internal.exceptions.InvalidServerSideConfigurationException: Default resource not aligned. Client: primary-server-resource Server: null
at org.ehcache.clustered.server.EhcacheStateServiceImpl.checkConfigurationCompatibility(EhcacheStateServiceImpl.java:207)
at org.ehcache.clustered.server.EhcacheStateServiceImpl.validate(EhcacheStateServiceImpl.java:194)
at org.ehcache.clustered.server.ClusterTierManagerActiveEntity.validate(ClusterTierManagerActiveEntity.java:253)
at org.ehcache.clustered.server.ClusterTierManagerActiveEntity.invokeLifeCycleOperation(ClusterTierManagerActiveEntity.java:203)
at org.ehcache.clustered.server.ClusterTierManagerActiveEntity.invoke(ClusterTierManagerActiveEntity.java:147)
at org.ehcache.clustered.server.ClusterTierManagerActiveEntity.invoke(ClusterTierManagerActiveEntity.java:57)
at com.tc.objectserver.entity.ManagedEntityImpl.performAction(ManagedEntityImpl.java:741)
at com.tc.objectserver.entity.ManagedEntityImpl.invoke(ManagedEntityImpl.java:488)
at com.tc.objectserver.entity.ManagedEntityImpl.lambda$processInvokeRequest$2(ManagedEntityImpl.java:319)
at com.tc.objectserver.entity.ManagedEntityImpl$SchedulingRunnable.run(ManagedEntityImpl.java:1048)
at com.tc.objectserver.entity.RequestProcessor$EntityRequest.invoke(RequestProcessor.java:170)
at com.tc.objectserver.entity.RequestProcessor$EntityRequest.run(RequestProcessor.java:161)
at com.tc.objectserver.entity.RequestProcessorHandler.handleEvent(RequestProcessorHandler.java:27)
at com.tc.objectserver.entity.RequestProcessorHandler.handleEvent(RequestProcessorHandler.java:23)
at com.tc.async.impl.StageQueueImpl$HandledContext.runWithHandler(StageQueueImpl.java:502)
at com.tc.async.impl.StageImpl$WorkerThread.run(StageImpl.java:192)
I think it's a problem in the XML files, but I'm not sure. Someone can help please?
Thanks

What the exception tells you is that the configuration of the clustered bits of your cache manager and cache differ between what the cluster knows and what the client ask.
The most likely explanation is that you ran your client code once with a different config, realised there was an issue or just wanted to change something. And then tried to run the client without destroying the cahche manager on the cluster or restarting the server.
You simply need to restart your server, to lose all clustered state since you want a different setup.

I've tried to reproduce your issue in my IDE, copying / pasting your 3 files.
I found an error in intializeCache():
cache = cm.getCache(cacheName == null ? DEFAULT_CACHE_NAME : cacheName,
Object.class, Object.class);
triggered a :
Exception in thread "main" java.lang.IllegalArgumentException: Cache 'myTest' type is <java.lang.String, java.lang.String>, but you retrieved it with <java.lang.Object, java.lang.Object>
at org.ehcache.core.EhcacheManager.getCache(EhcacheManager.java:162)
at MyXmlClient.intializeCache(MyXmlClient.java:48)
So please make sure that your xml configuration matches your Java code : you used <String, String> in XML, use <String, String> in your java code :
cache = cm.getCache(cacheName == null ? DEFAULT_CACHE_NAME : cacheName,
String.class, String.class);
Everything else worked fine !
INFO --- [8148202b7ba8914] customer.logger.tsa : Connection successfully established to server at 127.0.0.1:9510
INFO --- [ main] org.ehcache.core.EhcacheManager : Cache 'myTest' created in EhcacheManager.
1
INFO --- [ main] org.ehcache.core.EhcacheManager : Cache 'myTest' removed from EhcacheManager.
INFO --- [ main] o.e.c.c.i.s.DefaultClusteringService : Closing connection to cluster terracotta://localhost:9510
The error you gave is coming form a mismatch between the terracotta server offheap resource use in your client and the terracotta server offheap configuration ; make sure they match ! (copying / pasting your example they did !)

#AnthonyDahanne I am using ehcache-clustered-3.8.1-kit to launch the server. I have ehcache.xml my spring boot application is automatically picking my ehache.xml so I am not explicitly writing cacheManager.
<ehcache:config
xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance'
xmlns:terracotta='http://www.ehcache.org/v3/clustered'
xmlns:ehcache='http://www.ehcache.org/v3'
xsi:schemaLocation="http://www.ehcache.org/v3 http://www.ehcache.org/schema/ehcache-core-3.8.xsd
http://www.ehcache.org/v3/clustered http://www.ehcache.org/schema/ehcache-clustered-ext-3.8.xsd">
<ehcache:service>
<terracotta:cluster>
<terracotta:connection url="terracotta://localhost:9410/clustered"/>
<terracotta:server-side-config auto-create="true">
<!--<terracotta:default-resource from="default-resource"/>-->
<terracotta:shared-pool name="shared-pool-expense" unit="MB">100</terracotta:shared-pool>
</terracotta:server-side-config>
</terracotta:cluster>
</ehcache:service>
<ehcache:cache alias="areaOfCircleCache">
<ehcache:key-type>java.lang.String</ehcache:key-type>
<ehcache:value-type>com.db.entity.LogMessage</ehcache:value-type>
<ehcache:resources>
<!-- <ehcache:heap unit="entries">100</ehcache:heap>
<ehcache:offheap unit="MB">10</ehcache:offheap>-->
<terracotta:clustered-dedicated unit="MB">10</terracotta:clustered-dedicated>
</ehcache:resources>
</ehcache:cache>
</ehcache:config>

Connection to Matrikon OPC Simulation Server via Utgard

I am using the Matrikon OPC Server for Simulation and Testing, instead of TOPServer, along with the tutorial HowToStartWithUtgard. I am not able to connect to the server. This is the error that I get:
15:02:18.452 [main] DEBUG o.j.dcom.transport.JIComTransport - Socket closed... Socket[unconnected] host XXX.XXX.XX.X, port 135
15:02:18.453 [main] WARN org.jinterop.dcom.core.JIComServer - Got the class not registered exception , will attempt setting entries based on status flags...
15:02:18.468 [main] INFO org.openscada.opc.lib.da.Server - Failed to connect to server
org.jinterop.dcom.common.JIException: Class not registered. If you are using a DLL/OCX , please make sure it has "DllSurrogate" flag set. Faq A(6) in readme.html. [0x80040154]
at org.jinterop.dcom.core.JIComServer.init(Unknown Source) ~[org.openscada.jinterop.core_2.0.8.201303051454.jar:na]
at org.jinterop.dcom.core.JIComServer.initialise(Unknown Source) ~[org.openscada.jinterop.core_2.0.8.201303051454.jar:na]
at org.jinterop.dcom.core.JIComServer.<init>(Unknown Source) ~[org.openscada.jinterop.core_2.0.8.201303051454.jar:na]
at org.openscada.opc.lib.da.Server.connect(Server.java:117) ~[org.openscada.opc.lib_1.0.0.201303051455.jar:na]
at com.matrikonopc.utgard.tutorial.UtgardReadTutorial.main(UtgardReadTutorial.java:31) [bin/:na]
Caused by: org.jinterop.dcom.common.JIRuntimeException: Class not registered. If you are using a DLL/OCX , please make sure it has "DllSurrogate" flag set. Faq A(6) in readme.html. [0x80040154]
at org.jinterop.dcom.core.JIRemActivation.read(Unknown Source) ~[org.openscada.jinterop.core_2.0.8.201303051454.jar:na]
at ndr.NdrObject.decode(Unknown Source) ~[org.openscada.jinterop.deps_1.0.0.201303051454.jar:na]
at rpc.ConnectionOrientedEndpoint.call(Unknown Source) ~[org.openscada.jinterop.deps_1.0.0.201303051454.jar:na]
at rpc.Stub.call(Unknown Source) ~[org.openscada.jinterop.deps_1.0.0.201303051454.jar:na]
... 5 common frames omitted
15:02:18.469 [main] INFO org.openscada.opc.lib.da.Server - Destroying DCOM session...
15:02:18.470 [main] INFO org.openscada.opc.lib.da.Server - Destroying DCOM session... forked
80040154: Unknown error (80040154)
15:02:18.499 [OPCSessionDestructor] DEBUG org.openscada.opc.lib.da.Server - Starting destruction of DCOM session
15:02:18.500 [OPCSessionDestructor] INFO org.jinterop.dcom.core.JISession - About to destroy 0 sessesion which are linked to this session: 1325311425
15:02:18.500 [OPCSessionDestructor] INFO o.j.dcom.core.JIComOxidRuntime - destroySessionOIDs for session: 1325311425
15:02:18.500 [OPCSessionDestructor] INFO org.openscada.opc.lib.da.Server - Destructed DCOM session
15:02:18.501 [OPCSessionDestructor] INFO org.openscada.opc.lib.da.Server - Session destruction took 27 ms
I do not know where I should register the Class and what Class it refers to.

It is referring to the clsid you're attempting to use -- it is not in the registry. Can you double check that you're using the correct one for Matrikon OPC Simulation Server?

Working demo, tested on Windows 10 and Java 8.
User must have administrator rights on Windows.
Errors that might occur:
00000005: Login error (does the user has administrator rights !?)
8001FFFF: Firewall, RPC dynamic ports are not open (see below)
80040154: Double check CLSID in registry, below HKEY_CLASSES_ROOT
Firewall rules
netsh advfirewall firewall add rule^
name="DCOM-dynamic"^
dir=in^
action=allow^
protocol=TCP^
localport=RPC^
remoteport=49152-65535
rem the next one does not seems needed
netsh advfirewall firewall add rule name="DCOM" dir=in action=allow protocol=TCP localport=135
Java code
package demo.opc;
import java.util.concurrent.Executors;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.openscada.opc.lib.common.ConnectionInformation;
import org.openscada.opc.lib.da.AccessBase;
import org.openscada.opc.lib.da.DataCallback;
import org.openscada.opc.lib.da.Item;
import org.openscada.opc.lib.da.ItemState;
import org.openscada.opc.lib.da.Server;
import org.openscada.opc.lib.da.SyncAccess;
public class UtgardReaderDemo {
/**
* Main application, arguments are provided as system properties, e.g.<br>
* java -Dhost="localhost" -Duser="admin" -Dpassword="secret" -jar demo.opc.jar<br>
* Tested with a windows user having administrator rights<br>
* #param args unused
* #throws Exception in case of unexpected error
*/
public static void main(String[] args) throws Exception {
Logger.getLogger("org.jinterop").setLevel(Level.ALL); // Quiet => Level.OFF
final String host = System.getProperty("host", "localhost");
final String user = System.getProperty("user", System.getProperty("user.name"));
final String password = System.getProperty("password");
// Powershell: Get-ItemPropertyValue 'Registry::HKCR\Matrikon.OPC.Simulation.1\CLSID' '(default)'
final String clsId = System.getProperty("clsId", "F8582CF2-88FB-11D0-B850-00C0F0104305");
final String itemId = System.getProperty("itemId", "Saw-toothed Waves.Int2");
final ConnectionInformation ci = new ConnectionInformation(user, password);
ci.setHost(host);
ci.setClsid(clsId);
final Server server = new Server(ci, Executors.newSingleThreadScheduledExecutor());
server.connect();
final AccessBase access = new SyncAccess(server, 1000);
access.addItem(itemId, new DataCallback() {
public void changed(final Item item, final ItemState state) {
System.out.println(state);
}
});
access.bind();
Thread.sleep(10_000L);
access.unbind();
}
}
build.gradle
plugins {
id 'java-library'
id 'eclipse'
}
repositories {
mavenCentral()
}
dependencies {
implementation 'org.bouncycastle:bcprov-jdk15on:1.60'
implementation 'org.openscada.utgard:org.openscada.opc.lib:1.5.0'
}
jar {
manifest {
attributes(
'Class-Path': configurations.runtimeClasspath.collect { 'lib/' + it.getName() }.join(' '),
'Main-Class': 'demo.opc.UtgardReaderDemo'
)
}
}
assemble {
dependsOn 'dependenciesCopy'
}
task dependenciesCopy(type: Copy) {
group 'dependencies'
from sourceSets.main.compileClasspath
into "$libsDir/lib"
}

JAVAPNS 2.2 success push but not receive on device

enter code here I try to push from Java by using JAVAPNS 2.2
this is my code
import java.util.*;
import org.apache.log4j.BasicConfigurator;
import org.json.JSONException;
import javapns.*;
import javapns.communication.exceptions.CommunicationException;
import javapns.communication.exceptions.KeystoreException;
import javapns.notification.PushNotificationPayload;
import javapns.notification.PushedNotification;
import javapns.notification.ResponsePacket;
public class Test {
/**
* #param args
*/
public static void main(String[] args) {
BasicConfigurator.configure();
try {
PushNotificationPayload payload = PushNotificationPayload.complex();
payload.addAlert("Hello World");
payload.addBadge(1);
payload.addSound("default");
payload.addCustomDictionary("id", "1");
System.out.println(payload.toString());
List<PushedNotification> NOTIFICATIONS = Push.payload(payload, "D:\\keystore1.p12", "123456", true, "AA67F2F18586D2C83398F9E5E5BE8BA1CD3FF80257CC74BACF2938CE144BA71D");
for (PushedNotification NOTIFICATION : NOTIFICATIONS) {
if (NOTIFICATION.isSuccessful()) {
/* APPLE ACCEPTED THE NOTIFICATION AND SHOULD DELIVER IT */
System.out.println("PUSH NOTIFICATION SENT SUCCESSFULLY TO: " +
NOTIFICATION.getDevice().getToken());
/* STILL NEED TO QUERY THE FEEDBACK SERVICE REGULARLY */
}
else {
String INVALIDTOKEN = NOTIFICATION.getDevice().getToken();
/* ADD CODE HERE TO REMOVE INVALIDTOKEN FROM YOUR DATABASE */
/* FIND OUT MORE ABOUT WHAT THE PROBLEM WAS */
Exception THEPROBLEM = NOTIFICATION.getException();
THEPROBLEM.printStackTrace();
/* IF THE PROBLEM WAS AN ERROR-RESPONSE PACKET RETURNED BY APPLE, GET IT */
ResponsePacket THEERRORRESPONSE = NOTIFICATION.getResponse();
if (THEERRORRESPONSE != null) {
System.out.println(THEERRORRESPONSE.getMessage());
}
}
}
} catch (CommunicationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (KeystoreException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
The library sent successfully but I never get a push on my device. I've try many tokens of my devices and even try to regenerate the certificate .12 but still no use.
Log
0 [main] DEBUG javapns.notification.Payload - Adding alert [Hello World]
1 [main] DEBUG javapns.notification.Payload - Adding badge [1]
1 [main] DEBUG javapns.notification.Payload - Adding sound [default]
1 [main] DEBUG javapns.notification.Payload - Adding custom Dictionary [id] = [1]
{"id":"1","aps":{"sound":"default","alert":"Hello World","badge":1}}
292 [main] DEBUG javapns.communication.ConnectionToAppleServer - Creating SSLSocketFactory
341 [main] DEBUG javapns.communication.ConnectionToAppleServer - Creating SSLSocket to gateway.push.apple.com:2195
972 [main] DEBUG javapns.notification.PushNotificationManager - Initialized Connection to
Host: [gateway.push.apple.com] Port: [2195]: 1923e91b[SSL_NULL_WITH_NULL_NULL: Socket[addr=gateway.push.apple.com/17.149.35.173,port=2195,localport=65225]]
974 [main] DEBUG javapns.notification.PushNotificationManager - Building Raw message from deviceToken and payload
974 [main] DEBUG javapns.notification.PushNotificationManager - Built raw message ID 1 of total length 113
974 [main] DEBUG javapns.notification.PushNotificationManager - Attempting to send notification: {"id":"1","aps":{"sound":"default","alert":"Hello World","badge":1}}
974 [main] DEBUG javapns.notification.PushNotificationManager - to device: AA67F2F18586D2C83398F9E5E5BE8BA1CD3FF80257CC74BACF2938CE144BA71D
1743 [main] DEBUG javapns.notification.PushNotificationManager - Flushing
1743 [main] DEBUG javapns.notification.PushNotificationManager - At this point, the entire 113-bytes message has been streamed out successfully through the SSL connection
1743 [main] DEBUG javapns.notification.PushNotificationManager - Notification sent on first attempt
1743 [main] DEBUG javapns.notification.PushNotificationManager - Reading responses
1744 [main] DEBUG javapns.notification.PushNotificationManager - Closing connection
PUSH NOTIFICATION SENT SUCCESSFULLY TO: AA67F2F18586D2C83398F9E5E5BE8BA1CD3FF80257CC74BACF2938CE144BA71D
anyone has any idea ?

this line should
List<PushedNotification> NOTIFICATIONS = Push.payload(payload, "D:\\keystore1.p12", "123456", true, "AA67F2F18586D2C83398F9E5E5BE8BA1CD3FF80257CC74BACF2938CE144BA71D");
should change to this
List<PushedNotification> NOTIFICATIONS = Push.payload(payload, "D:\\keystore1.p12", "123456", false, "AA67F2F18586D2C83398F9E5E5BE8BA1CD3FF80257CC74BACF2938CE144BA71D");