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Is there a multi-thread problem in MDCConcurrentCallable.java? 

public K call() throws Exception {
    LOG.debug("Call using MDCHystrixContextCallable...");
    Map childMDC = MDC.getCopyOfContextMap();
    LOG.debug("childMDC --> " + childMDC);
    try {
        if (parentMDC != null) {
            **MDC.setContextMap(parentMDC);**
        }
        LOG.debug("parentMDC --> " + parentMDC);
        return actual.call();
    } finally {
        if (childMDC != null) {
            **MDC.setContextMap(childMDC);**
        }
    }
}

user-service> com.sun.jersey.api.client.ClientHandlerException: java.net.ConnectException: Connection refused

Hi sourabhh,
When I run the command "mvn docker:run" on the restaurant-service , errors show as below:
user-service> 2017-03-30 10:06:41.030 INFO 1 --- [nfoReplicator-0] com.netflix.discovery.DiscoveryClient : DiscoveryClient_USER-SERVICE/747a86cc2f97:user-service:7770: registering service...
user-service> 2017-03-30 10:06:41.061 ERROR 1 --- [nfoReplicator-0] c.n.d.s.t.d.RedirectingEurekaHttpClient : Request execution error
user-service>
user-service> com.sun.jersey.api.client.ClientHandlerException: java.net.ConnectException: Connection refused (Connection refused)
user-service> at com.sun.jersey.client.apache4.ApacheHttpClient4Handler.handle(ApacheHttpClient4Handler.java:187) ~[jersey-apache-client4-1.19.1.jar!/:1.19.1]
user-service> at com.sun.jersey.api.client.filter.GZIPContentEncodingFilter.handle(GZIPContentEncodingFilter.java:123) ~[jersey-client-1.19.1.jar!/:1.19.1]
user-service> at com.netflix.discovery.EurekaIdentityHeaderFilter.handle(EurekaIdentityHeaderFilter.java:27) ~[eureka-client-1.4.12.jar!/:1.4.12]
user-service> at com.sun.jersey.api.client.Client.handle(Client.java:652) ~[jersey-client-1.19.1.jar!/:1.19.1]
user-service> at com.sun.jersey.api.client.WebResource.handle(WebResource.java:682) ~[jersey-client-1.19.1.jar!/:1.19.1]
user-service> at com.sun.jersey.api.client.WebResource.access$200(WebResource.java:74) ~[jersey-client-1.19.1.jar!/:1.19.1]
user-service> at com.sun.jersey.api.client.WebResource$Builder.post(WebResource.java:570) ~[jersey-client-1.19.1.jar!/:1.19.1]
user-service> at com.netflix.discovery.shared.transport.jersey.AbstractJerseyEurekaHttpClient.register(AbstractJerseyEurekaHttpClient.java:56) ~[eureka-client-1.4.12.jar!/:1.4.12]
user-service> at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator$1.execute(EurekaHttpClientDecorator.java:59) [eureka-client-1.4.12.jar!/:1.4.12]
user-service> at com.netflix.discovery.shared.transport.decorator.MetricsCollectingEurekaHttpClient.execute(MetricsCollectingEurekaHttpClient.java:73) ~[eureka-client-1.4.12.jar!/:1.4.12]
user-service> at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.register(EurekaHttpClientDecorator.java:56) [eureka-client-1.4.12.jar!/:1.4.12]
user-service> at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator$1.execute(EurekaHttpClientDecorator.java:59) [eureka-client-1.4.12.jar!/:1.4.12]
user-service> at com.netflix.discovery.shared.transport.decorator.RedirectingEurekaHttpClient.executeOnNewServer(RedirectingEurekaHttpClient.java:118) ~[eureka-client-1.4.12.jar!/:1.4.12]
user-service> at com.netflix.discovery.shared.transport.decorator.RedirectingEurekaHttpClient.execute(RedirectingEurekaHttpClient.java:79) ~[eureka-client-1.4.12.jar!/:1.4.12]
user-service> at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.register(EurekaHttpClientDecorator.java:56) [eureka-client-1.4.12.jar!/:1.4.12]
user-service> at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator$1.execute(EurekaHttpClientDecorator.java:59) [eureka-client-1.4.12.jar!/:1.4.12]
user-service> at com.netflix.discovery.shared.transport.decorator.RetryableEurekaHttpClient.execute(RetryableEurekaHttpClient.java:119) [eureka-client-1.4.12.jar!/:1.4.12]
user-service> at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.register(EurekaHttpClientDecorator.java:56) [eureka-client-1.4.12.jar!/:1.4.12]
user-service> at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator$1.execute(EurekaHttpClientDecorator.java:59) [eureka-client-1.4.12.jar!/:1.4.12]
user-service> at com.netflix.discovery.shared.transport.decorator.SessionedEurekaHttpClient.execute(SessionedEurekaHttpClient.java:77) [eureka-client-1.4.12.jar!/:1.4.12]
user-service> at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.register(EurekaHttpClientDecorator.java:56) [eureka-client-1.4.12.jar!/:1.4.12]
user-service> at com.netflix.discovery.DiscoveryClient.register(DiscoveryClient.java:815) [eureka-client-1.4.12.jar!/:1.4.12]
user-service> at com.netflix.discovery.InstanceInfoReplicator.run(InstanceInfoReplicator.java:104) [eureka-client-1.4.12.jar!/:1.4.12]
user-service> at com.netflix.discovery.InstanceInfoReplicator$1.run(InstanceInfoReplicator.java:88) [eureka-client-1.4.12.jar!/:1.4.12]
user-service> at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [na:1.8.0_121]
user-service> at java.util.concurrent.FutureTask.run(FutureTask.java:266) [na:1.8.0_121]
user-service> at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180) [na:1.8.0_121]
user-service> at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) [na:1.8.0_121]
user-service> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_121]
user-service> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_121]
user-service> at java.lang.Thread.run(Thread.java:745) [na:1.8.0_121]
user-service> Caused by: java.net.ConnectException: Connection refused (Connection refused)
user-service> at java.net.PlainSocketImpl.socketConnect(Native Method) ~[na:1.8.0_121]
user-service> at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350) ~[na:1.8.0_121]
user-service> at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206) ~[na:1.8.0_121]
user-service> at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188) ~[na:1.8.0_121]
user-service> at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) ~[na:1.8.0_121]
user-service> at java.net.Socket.connect(Socket.java:589) ~[na:1.8.0_121]
user-service> at org.apache.http.conn.scheme.PlainSocketFactory.connectSocket(PlainSocketFactory.java:121) ~[httpclient-4.5.3.jar!/:4.5.3]
user-service> at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:180) ~[httpclient-4.5.3.jar!/:4.5.3]
user-service> at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:144) ~[httpclient-4.5.3.jar!/:4.5.3]
user-service> at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:134) ~[httpclient-4.5.3.jar!/:4.5.3]
user-service> at org.apache.http.impl.client.DefaultRequestDirector.tryConnect(DefaultRequestDirector.java:610) ~[httpclient-4.5.3.jar!/:4.5.3]
user-service> at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:445) ~[httpclient-4.5.3.jar!/:4.5.3]
user-service> at org.apache.http.impl.client.AbstractHttpClient.doExecute(AbstractHttpClient.java:835) ~[httpclient-4.5.3.jar!/:4.5.3]
user-service> at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:118) ~[httpclient-4.5.3.jar!/:4.5.3]
user-service> at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:56) ~[httpclient-4.5.3.jar!/:4.5.3]
user-service> at com.sun.jersey.client.apache4.ApacheHttpClient4Handler.handle(ApacheHttpClient4Handler.java:173) ~[jersey-apache-client4-1.19.1.jar!/:1.19.1]
user-service> ... 30 common frames omitted

Would you please kindly help me how to resolve this issu?

angularjs code is not complete

Hi sourabhh,
When run "npm start" for the OTRS_UI project, there are many errors due to missing many files as below:

<script type="text/javascript" src="scripts/templates.js"></script> 
     <script type="text/javascript" src="scripts/httperror/httperror.js"></script>
    <script type="text/javascript" src="scripts/login/login.js"></script>
    <script type="text/javascript" src="scripts/restaurants/restaurants.js"></script>
app/src/styles/application.css

other erros :
Uncaught TypeError: b.module(...).info is not a function
at angular-resource.js:436
at angular-resource.js:6

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