Setup minikub ( Mini Kubernetes ) on windows local wsl2 ubentu

 

1.       sudo apt install -y conntrack

2.       curl -Lo minikube https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64

3.       sudo chmod +x ./minikube

4.       sudo mv ./minikube /usr/local/bin/

5.       minikube config set driver docker

6.       minikube start

7.       minikube status

8.       minikube dashboard  -> this will start the dashboard and at the end it will display a link which we can use in our local browser to see the dashboard.

9.       After that u can play with it 😊

creating sling servlet with path parameter in AEM

There is no direct way to do this as aem is not supporting path parameter in sling servlet, but we can do it by following way

On dispatcher write a rules as below which will convert your service to path parameter based service from query parameter based service.

if we want to convert out service let say 

myUrl/?p1=P1value&p2=P2value&p3=P3value 

above service to path parameter based service then we can do it by writing below rule in dispatcher. 

myUrl/(P1PossibleValueRegex)/(P2PossibleValueRegex)/(P3PossibleValueRegex) myUrl/?p1=$1&p2=$2&p3=$3 [PT]

I Hope this will help

Your feedback will help others please share your feedback

AEM caching the query parameter of service url

 There is no direct way to cache the query parameter in the dispatcher, but we can do it by following way

on dispatcher write a rules as below which will convert your service to path parameter based service from query parameter based service.

and path is automatically get cached so our problem is solved.

myUrl/(P1PossibleValueRegex)/(P2PossibleValueRegex)/(P3PossibleValueRegex) myUrl/?p1=$1&p2=$2&p3=$3 [PT]

I Hope this will help

Your feedback will help others please share your feedback

2.25.1 jersey version WAITING Thread Blocking / Block Thread

Jersey threads stuck in `WAITING`

Thread Name:catalina-exec-367 ID:982 Time:Mon Nov 18 14:04:09 PST 2019 State:WAITING Priority:5 sun.misc.Unsafe.park(Native Method) java.util.concurrent.locks.LockSupport.park(LockSupport.java:175) java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039) org.apache.http.pool.AbstractConnPool.getPoolEntryBlocking(AbstractConnPool.java:379) org.apache.http.pool.AbstractConnPool.access$200(AbstractConnPool.java:69) org.apache.http.pool.AbstractConnPool$2.get(AbstractConnPool.java:245) org.apache.http.pool.AbstractConnPool$2.get(AbstractConnPool.java:193) org.apache.http.impl.conn.PoolingHttpClientConnectionManager.leaseConnection(PoolingHttpClientConnectionManager.java:276) org.apache.http.impl.conn.PoolingHttpClientConnectionManager$1.get(PoolingHttpClientConnectionManager.java:263) org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:190) org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:184) org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:88) org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110) org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:184) org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:71) org.glassfish.jersey.apache.connector.ApacheConnector.apply(ApacheConnector.java:478) org.glassfish.jersey.client.ClientRuntime.invoke(ClientRuntime.java:254) org.glassfish.jersey.client.JerseyInvocation.lambda$invoke$2(JerseyInvocation.java:770) org.glassfish.jersey.client.JerseyInvocation$$Lambda$620/1982271609.call(Unknown Source) org.glassfish.jersey.internal.Errors.process(Errors.java:292) org.glassfish.jersey.internal.Errors.process(Errors.java:274) org.glassfish.jersey.internal.Errors.process(Errors.java:205) org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:390) org.glassfish.jersey.client.JerseyInvocation.invoke(JerseyInvocation.java:768) org.glassfish.jersey.client.JerseyInvocation$Builder.method(JerseyInvocation.java:414) org.glassfish.jersey.client.proxy.WebResourceFactory.invoke(WebResourceFactory.java:331) com.sun.proxy.$Proxy140.getDealers(Unknown Source) com.tms.restws.dealerlocator.client.impl.DealerSearchRestClientImpl.getDealers(DealerSearchRestClientImpl.java:62) com.tms.site.dealerlocator.service.impl.DealerLocatorServiceDisImpl.searchDealers(DealerLocatorServiceDisImpl.java:385) com.tms.site.dealerlocator.service.impl.DealerLocatorServiceDisImpl.searchDealers(DealerLocatorServiceDisImpl.java:164) com.tms.site.dealerlocator.controller.DealerLocatorRestWS.searchDealers(DealerLocatorRestWS.java:101) sun.reflect.GeneratedMethodAccessor219.invoke(Unknown Source) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.lang.reflect.Method.invoke(Method.java:498) org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:139) org.jboss.resteasy.core.ResourceMethodInvoker.invokeOnTarget(ResourceMethodInvoker.java:295) org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:249) org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:236) org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:402) org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:209) org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:221) org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:56) org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:51) javax.servlet.http.HttpServlet.service(HttpServlet.java:741) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) com.tms.restws.filter.JSONPRequestFilter.doFilter(JSONPRequestFilter.java:109) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ch.qos.logback.classic.selector.servlet.LoggerContextFilter.doFilter(LoggerContextFilter.java:70) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199) org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:493) org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137) org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81) org.apache.catalina.valves.RemoteIpValve.invoke(RemoteIpValve.java:679) org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:660) org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:798) org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:808) org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1498) org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) java.lang.Thread.run(Thread.java:748)

ApacheConnector could throw ConnectionClosedException when using httpclient: 4.5.1+ with chunked transfer encodingProperly close the Apache response so that connections can be reusedApacheConnector/PoolingHttpClientConnectionManager doesn't pool at all!

For all the above problems below implementation has resolved my all the problems

Create client with synchronized blocks as below and then make sure from where ever you are calling the proxy request. Close all the response object in finally block of your rest client implementation

package com.tms.restws; import javax.ws.rs.client.Client; import javax.ws.rs.client.ClientBuilder; import javax.ws.rs.client.WebTarget; import org.apache.http.impl.conn.PoolingHttpClientConnectionManager; import org.glassfish.jersey.apache.connector.ApacheClientProperties; import org.glassfish.jersey.apache.connector.ApacheConnectorProvider; import org.glassfish.jersey.client.ClientConfig; import org.glassfish.jersey.client.ClientProperties; import org.glassfish.jersey.client.proxy.WebResourceFactory; public class JerseyRestClient { public static int DEFAULT_CONNECTION_TIMEOUT_MS = 30000; public static int DEFAULT_SOCKET_TIMEOUT_MS = 30000; public static int DEFAULT_MAX_TOTAL_CONNECTIONS = 100; public static int DEFAULT_MAX_CONNECTIONS_DEFAULT_PER_ROUTE = 50; private static Client client = null; public static <T> T createProxy(Class<T> clazz, String baseUrl, int connectionTimeoutMs, int socketTimeoutMs, int maxTotalConnections, int maxDefaultConnectionsPerRoute) { DEFAULT_CONNECTION_TIMEOUT_MS = connectionTimeoutMs; DEFAULT_SOCKET_TIMEOUT_MS = socketTimeoutMs; DEFAULT_MAX_TOTAL_CONNECTIONS = maxTotalConnections; DEFAULT_MAX_CONNECTIONS_DEFAULT_PER_ROUTE = maxDefaultConnectionsPerRoute; client = makeClient(); WebTarget target = client.target(baseUrl); return WebResourceFactory.newResource(clazz, target); } public static WebTarget getClient(String baseUrl, int connectionTimeoutMs, int socketTimeoutMs, int maxTotalConnections, int maxDefaultConnectionsPerRoute) { DEFAULT_CONNECTION_TIMEOUT_MS = connectionTimeoutMs; DEFAULT_SOCKET_TIMEOUT_MS = socketTimeoutMs; DEFAULT_MAX_TOTAL_CONNECTIONS = maxTotalConnections; DEFAULT_MAX_CONNECTIONS_DEFAULT_PER_ROUTE = maxDefaultConnectionsPerRoute; client = makeClient(); WebTarget target = client.target(baseUrl); return target; } public static Client makeClient(){ if(client!=null){ return client; } if (client == null) { synchronized (JerseyRestClient.class) { if (client == null) { ClientConfig clientConfig = new ClientConfig(); clientConfig.property(ClientProperties.CONNECT_TIMEOUT, DEFAULT_CONNECTION_TIMEOUT_MS); clientConfig.property(ClientProperties.READ_TIMEOUT, DEFAULT_CONNECTION_TIMEOUT_MS); // For connection pooling using httpclient PoolingHttpClientConnectionManager poolingClientConnectionManager = new PoolingHttpClientConnectionManager(); poolingClientConnectionManager.setMaxTotal(DEFAULT_MAX_TOTAL_CONNECTIONS); poolingClientConnectionManager.setDefaultMaxPerRoute(DEFAULT_MAX_CONNECTIONS_DEFAULT_PER_ROUTE); clientConfig.property(ApacheClientProperties.CONNECTION_MANAGER, poolingClientConnectionManager); clientConfig.connectorProvider(new ApacheConnectorProvider()); // ends connection pooling client = ClientBuilder.newClient(clientConfig); } } } return client; } }