About rohit_r_sharma

rohit_r_sharma · ‎09-05-2019

Hi All, Resolved using below steps: 1) To observe the Datanode threads: Created a widget in Ambari under HDFS for DataNode Threads (Runnable, Waited, Blocked) Monitored that from a particular date the threads went in wait stage. Exported the graph widget CSV file to view the exact time of wait threads. 2) Restart all Datanodes manually and observed that the wait threads were released. 3) With default 4096 threads the DataNode is running properly. Still unable to understand: 1) How to check the wait threads are in which DataNode? 2) Which task or process tend to threads in the wait stage? Would like to know if anyone comes across this and able to find in detail. Else the above steps are the only solution for wait threads.

rohit_r_sharma · ‎08-29-2019

Ambari 2.6 and HDP 2.6.3. The error is displayed while performing the following error: 1) HDFS get operation. 2) While aggregating and writing file on HDFS using pyspark. Error: "19/08/29 15:53:02 WARN hdfs.DFSClient: Failed to connect to /DN_IP:1019 for block, add to deadNodes and continue. java.io.EOFException: Premature EOF: no length prefix available " We found the following links to resolve the above error. => To set dfs.datanode.max.transfer.threads=8196 1) https://www.netiq.com/documentation/sentinel-82/admin/data/b1nbq4if.html (Performance Tuning Guidelines) 2) https://github.com/hortonworks/structor/issues/7 (jmaron commented on Jul 28, 2014) Could you all please suggest shall i go ahead with this resolution? Does this configuration affects any other services? Thankyou

rohit_r_sharma · ‎08-22-2019

Hi, In HDP 2.6.3 and Ambari 2.6.0. (Automated Ambari Installation, *Kerberized Env*) I am running spark/python jobs using yarn as the master in cluster mode, in which after completion of the job the yarn is aggregating the logs in HDFS. So to view the logs I have to trigger yarn log command from CLI and write in a file and then view or send to the developer for reference. Any mechanism in the suggestion to be set in Ambari? Is there any inbuilt / External UI which can be set to view yarn aggregated log? Let me know anything which can be done for that. Thank you.

rohit_r_sharma · ‎06-11-2019

@Jay Kumar SenSharma, Thanks for the support!!! Yeah, there was inconsistency in Ambari-Server DB which was not allowing Alert to function on Ambari-UI. The Ambari-server DB size was grown to 294 MB. By purging the last 6 months from DB and restarting the ambari functioned the Alerts back on Ambari-UI. Would like to know in detail if this happens on PROD env what measures should be taken as an admin.

rohit_r_sharma · ‎06-11-2019

@Geoffrey Shelton Okot, The purging saved me. Thanks a lot for the support. It would be great if I can automate purging every 6 months, please let me know if there is any way to do it.

rohit_r_sharma · ‎06-10-2019

@Geoffrey Shelton Okot, The ambari-server DB was created on 2018-09-04 20:10:19. The size of table schema ambari which belongs to ambari-server is 294 MB. Do you really think I need to purge the schema? Should the ambari-server schema size have a limit? If it is so How to limit it? OR automate purging?

rohit_r_sharma · ‎06-10-2019

@Jay Kumar SenSharma 1st Point ambari-server.log : Error Processing URI: /api/v1/clusters/cluster-name/alerts - (java.lang.NullPointerException) null 2nd Incognito Browser- Console (Tab) 3rd There is enough memory for Ambari-Server to function approx 166GB is Available. 4th With the help of your link above there is no log in ambari server saying exceeded Java Heap Size. The error in ambari-server is Java Null Pointer Exception null running alerts tab. Please Suggest.

rohit_r_sharma · ‎05-31-2019

Hi All, The configured HDP 2.6.3 cluster with Ambari 2.6 is unable to show contents inside the Alerts page. Can anyone help me, how to find the RCA for the same? Attaching screenshot of the Ambari Alerts Page: How to monitor log ? for this Alert page.

rohit_r_sharma · ‎09-26-2018

@Gitanjali Bare Even i have faced the timeout error. There are two ways to solve this error: 1) Validate the KDC port 88 is allowed to ESTABLISH for both TCP and UDP connections. netstat -an | grep 88 2) If the UDP is not allowed to used, add the following entry in krb5.conf under [libdefaults] udp_preference_limit = 1 This worked for me . Hope this will help you also. Thanks...

rohit_r_sharma · ‎09-18-2018

@Gonçalo Cunha, Thanks for your response. the current krb5.conf looks like: [libdefaults] renew_lifetime = 7d forwardable = true default_realm = XYZ.COM ticket_lifetime = 24h dns_lookup_realm = false dns_lookup_kdc = false default_ccache_name = /tmp/krb5cc_%{uid} #default_tgs_enctypes = aes des3-cbc-sha1 rc4 des-cbc-md5 #default_tkt_enctypes = aes des3-cbc-sha1 rc4 des-cbc-md5 [domain_realm] .example.com = XYZ.COM example.com = XYZ.COM [logging] default = FILE:/var/log/krb5kdc.log admin_server = FILE:/var/log/kadmind.log kdc = FILE:/var/log/krb5kdc.log [realms] XYZ.COM = { admin_server = FQDN kdc = FQDN } The principal pointing to this is like: username/hostname@XYZ.COM Keytab: username.service.keytab

rohit_r_sharma · ‎09-18-2018

Hi All, We are trying to push data into kerberized kafka using external non-kerberized nifi. The nifi node was previously configured in /etc/krb5.conf to use ABC.COM in realm and was working fine. Now when we want to change the pointing of realm in same file to XYZ.COM we are getting following error : Please let me know if any service needs to be restarted while using kerberized cluster from non-kerberized node. 2018-09-17 17:24:58,905 ERROR [Timer-Driven Process Thread-144] o.a.n.p.kafka.pubsub.PublishKafka_0_10 PublishKafka_0_10[id=e01735cf-1a47-12b1-8151-82518eab4545] PublishKafka_0_10[id=e01735cf-1a47-12b1-8151-82518eab4545] failed to process session due to org.apache.kafka.common.KafkaException: Failed to construct kafka producer: {}org.apache.kafka.common.KafkaException: Failed to construct kafka producer at org.apache.kafka.clients.producer.KafkaProducer.<init>(KafkaProducer.java:342) at org.apache.kafka.clients.producer.KafkaProducer.<init>(KafkaProducer.java:166) at org.apache.nifi.processors.kafka.pubsub.PublisherPool.createLease(PublisherPool.java:61) at org.apache.nifi.processors.kafka.pubsub.PublisherPool.obtainPublisher(PublisherPool.java:56) at org.apache.nifi.processors.kafka.pubsub.PublishKafka_0_10.onTrigger(PublishKafka_0_10.java:312) at org.apache.nifi.processor.AbstractProcessor.onTrigger(AbstractProcessor.java:27) at org.apache.nifi.controller.StandardProcessorNode.onTrigger(StandardProcessorNode.java:1122) at org.apache.nifi.controller.tasks.ContinuallyRunProcessorTask.call(ContinuallyRunProcessorTask.java:147) at org.apache.nifi.controller.tasks.ContinuallyRunProcessorTask.call(ContinuallyRunProcessorTask.java:47) at org.apache.nifi.controller.scheduling.TimerDrivenSchedulingAgent$1.run(TimerDrivenSchedulingAgent.java:128) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745)Caused by: org.apache.kafka.common.KafkaException: javax.security.auth.login.LoginException: Cannot locate KDC at org.apache.kafka.common.network.SaslChannelBuilder.configure(SaslChannelBuilder.java:94) at org.apache.kafka.common.network.ChannelBuilders.create(ChannelBuilders.java:93) at org.apache.kafka.common.network.ChannelBuilders.clientChannelBuilder(ChannelBuilders.java:51) at org.apache.kafka.clients.ClientUtils.createChannelBuilder(ClientUtils.java:84) at org.apache.kafka.clients.producer.KafkaProducer.<init>(KafkaProducer.java:305) ... 16 common frames omittedCaused by: javax.security.auth.login.LoginException: Cannot locate KDC at com.sun.security.auth.module.Krb5LoginModule.attemptAuthentication(Krb5LoginModule.java:804) at com.sun.security.auth.module.Krb5LoginModule.login(Krb5LoginModule.java:617) at sun.reflect.GeneratedMethodAccessor1592.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at javax.security.auth.login.LoginContext.invoke(LoginContext.java:755) at javax.security.auth.login.LoginContext.access$000(LoginContext.java:195) at javax.security.auth.login.LoginContext$4.run(LoginContext.java:682) at javax.security.auth.login.LoginContext$4.run(LoginContext.java:680) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.login.LoginContext.invokePriv(LoginContext.java:680) at javax.security.auth.login.LoginContext.login(LoginContext.java:587) at org.apache.kafka.common.security.authenticator.AbstractLogin.login(AbstractLogin.java:58) at org.apache.kafka.common.security.kerberos.KerberosLogin.login(KerberosLogin.java:109) at org.apache.kafka.common.security.authenticator.LoginManager.<init>(LoginManager.java:55) at org.apache.kafka.common.security.authenticator.LoginManager.acquireLoginManager(LoginManager.java:83) at org.apache.kafka.common.network.SaslChannelBuilder.configure(SaslChannelBuilder.java:86) ... 20 common frames omittedCaused by: sun.security.krb5.KrbException: Cannot locate KDC at sun.security.krb5.Config.getKDCList(Config.java:1084) at sun.security.krb5.KdcComm.send(KdcComm.java:218) at sun.security.krb5.KdcComm.send(KdcComm.java:200) at sun.security.krb5.KrbAsReqBuilder.send(KrbAsReqBuilder.java:316) at sun.security.krb5.KrbAsReqBuilder.action(KrbAsReqBuilder.java:361) at com.sun.security.auth.module.Krb5LoginModule.attemptAuthentication(Krb5LoginModule.java:776) ... 36 common frames omittedCaused by: sun.security.krb5.KrbException: Generic error (description in e-text) (60) - Unable to locate KDC for realm XYZ.COM at sun.security.krb5.Config.getKDCFromDNS(Config.java:1181) at sun.security.krb5.Config.getKDCList(Config.java:1057)... 41 common frames omitted

rohit_r_sharma · ‎07-06-2018

Hi All, I am using Ambari 2.6. with HDP 2.6. While using LogSearch UI, the logs are not visible. The logsearch server error logs are: [pool-2-thread-1] ERROR apache.solr.client.solrj.impl.CloudSolrClient (CloudSolrClient.java:903) - Request to collection hadoop_logs failed due to (510) org.apache.solr.common.SolrException: Could not find a healthy node to handle the request., retry? 0[logfeeder_filter_setup] ERROR apache.solr.client.solrj.impl.CloudSolrClient (CloudSolrClient.java:903) - Request to collection history failed due to (510) org.apache.solr.common.SolrException: Could not find a healthy node to handle the request., retry? 0 Logfeeder error logs are: ERROR org.apache.ambari.logfeeder.util.LogFeederUtil (LogFeederUtil.java:303) - Error getting filter config from solr. Please suggest me how to view logs in LogSearch-UI. Thanks...

rohit_r_sharma · ‎05-22-2018

@yifan zhao You can take look here Link, hope it will help you.

rohit_r_sharma · ‎05-15-2018

Hi All, I resolved this issue, in my cluster the user was created in Ambari View and HDFS /user directory not in OS having hive view access through which i was trying to query "select count(*) from table;". In a kerberized zone if you have enabled Hive impersonation i.e., run hive query using end user, so the "select count(*) from table;" query searches the access and privileges of /tmp/hive directory on the node where Hiveserver2 service is installed. The Solution to this are as follows: 1) Create a user in OS and allow HDFS group permission using "usermod -g hdfs username". 2) Create a user in OS and allow the HDFS and give permission through Ranger of /tmp/hive directory. 3) Disable Hive impersonation i.e., run hive query using end user. This will use hive user to fetch query output in background. Let me know if there are other possible ways to achieve the same.

rohit_r_sharma · ‎05-09-2018

Hi All, In a kerberized HDP cluster I have created a external table from hive view successfully. i am able to query select * from table and see the records in table in hive view. While query select count(*) from table i am getting a error on hive view: java.sql.SQLException: Error while processing statement: FAILED: Execution Error, return code 1 from org.apache.hadoop.hive.ql.exec.tez.TezTask Attaching error in detail: java.lang.Exception: java.sql.SQLException: Error while processing statement: FAILED: Execution Error, return code 1 from org.apache.hadoop.hive.ql.exec.tez.TezTask java.lang.Exception: java.sql.SQLException: Error while processing statement: FAILED: Execution Error, return code 1 from org.apache.hadoop.hive.ql.exec.tez.TezTask at org.apache.ambari.view.hive2.resources.jobs.JobService.getOne(JobService.java:143) at sun.reflect.GeneratedMethodAccessor399.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at com.sun.jersey.spi.container.JavaMethodInvokerFactory$1.invoke(JavaMethodInvokerFactory.java:60) at com.sun.jersey.server.impl.model.method.dispatch.AbstractResourceMethodDispatchProvider$ResponseOutInvoker._dispatch(AbstractResourceMethodDispatchProvider.java:205) at com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:75) at com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:302) at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147) at com.sun.jersey.server.impl.uri.rules.SubLocatorRule.accept(SubLocatorRule.java:137) at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147) at com.sun.jersey.server.impl.uri.rules.SubLocatorRule.accept(SubLocatorRule.java:137) at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147) at com.sun.jersey.server.impl.uri.rules.SubLocatorRule.accept(SubLocatorRule.java:137) at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147) at com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:108) at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147) at com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:84) at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1542) at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1473) at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1419) at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1409) at com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:409) at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:558) at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:733) at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:684) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1507) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330) at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:118) at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:84) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.apache.ambari.server.security.authorization.AmbariAuthorizationFilter.doFilter(AmbariAuthorizationFilter.java:287) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:103) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:54) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:45) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.apache.ambari.server.security.authentication.AmbariDelegatingAuthenticationFilter.doFilter(AmbariDelegatingAuthenticationFilter.java:132) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.apache.ambari.server.security.authorization.AmbariUserAuthorizationFilter.doFilter(AmbariUserAuthorizationFilter.java:91) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:192) at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:160) at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:237) at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:167) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1478) at org.apache.ambari.server.api.MethodOverrideFilter.doFilter(MethodOverrideFilter.java:72) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1478) at org.apache.ambari.server.api.AmbariPersistFilter.doFilter(AmbariPersistFilter.java:47) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1478) at org.apache.ambari.server.view.AmbariViewsMDCLoggingFilter.doFilter(AmbariViewsMDCLoggingFilter.java:54) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1478) at org.apache.ambari.server.view.ViewThrottleFilter.doFilter(ViewThrottleFilter.java:161) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1478) at org.apache.ambari.server.security.AbstractSecurityHeaderFilter.doFilter(AbstractSecurityHeaderFilter.java:125) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1478) at org.apache.ambari.server.security.AbstractSecurityHeaderFilter.doFilter(AbstractSecurityHeaderFilter.java:125) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1478) at org.eclipse.jetty.servlets.UserAgentFilter.doFilter(UserAgentFilter.java:82) at org.eclipse.jetty.servlets.GzipFilter.doFilter(GzipFilter.java:294) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1478) at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:499) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137) at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:557) at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231) at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1086) at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:427) at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193) at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1020) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135) at org.apache.ambari.server.controller.AmbariHandlerList.processHandlers(AmbariHandlerList.java:212) at org.apache.ambari.server.controller.AmbariHandlerList.processHandlers(AmbariHandlerList.java:201) at org.apache.ambari.server.controller.AmbariHandlerList.handle(AmbariHandlerList.java:139) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116) at org.eclipse.jetty.server.Server.handle(Server.java:370) at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:494) at org.eclipse.jetty.server.AbstractHttpConnection.headerComplete(AbstractHttpConnection.java:973) at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:1035) at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:641) at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:231) at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82) at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:696) at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:53) at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608) at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543) at java.lang.Thread.run(Thread.java:748) Caused by: java.sql.SQLException: Error while processing statement: FAILED: Execution Error, return code 1 from org.apache.hadoop.hive.ql.exec.tez.TezTask at org.apache.hive.jdbc.HiveStatement.waitForOperationToComplete(HiveStatement.java:348) at org.apache.hive.jdbc.HiveStatement.execute(HiveStatement.java:251) at org.apache.ambari.view.hive2.HiveJdbcConnectionDelegate.execute(HiveJdbcConnectionDelegate.java:49) at org.apache.ambari.view.hive2.actor.StatementExecutor.runStatement(StatementExecutor.java:87) at org.apache.ambari.view.hive2.actor.StatementExecutor.handleMessage(StatementExecutor.java:70) at org.apache.ambari.view.hive2.actor.HiveActor.onReceive(HiveActor.java:38) at akka.actor.UntypedActor$anonfun$receive$1.applyOrElse(UntypedActor.scala:167) at akka.actor.Actor$class.aroundReceive(Actor.scala:467) at akka.actor.UntypedActor.aroundReceive(UntypedActor.scala:97) at akka.actor.ActorCell.receiveMessage(ActorCell.scala:516) at akka.actor.ActorCell.invoke(ActorCell.scala:487) at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:238) at akka.dispatch.Mailbox.run(Mailbox.scala:220) at akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(AbstractDispatcher.scala:397) at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260) at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339) at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979) at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107) Please let me know if you need more information on same.

rohit_r_sharma · ‎05-07-2018

@Kibrom Gebrehiwot, I met into same issue you faced, the steps all here suggested are accurately perfect . After you added the realm name of your HDP in Kerberised cluster Nifi node you have change Kerberos keytab path in PutHDFS property to krb5.conf path which worked like charm for me.

rohit_r_sharma · ‎04-24-2018

Hi, I am planning to set a kerberize zone in HDP and HDF clusterusing Ambari, there are some highlights which I would like to know from you all. As I am new to this zone. 1. What are kerberize zone advantages. ? 2. Which services should i considered to keep in that zone? 3. Which approach is good to use other the this.? 4. If it's HA and Prod environment what are best practices.? 5. How to implement and configure if I am planning to add ranger poorly? 6. If it is integrated with HDP and HDF cluster what would be administraror good practice? 7. Study materials if any in HDP? Thanks all.

rohit_r_sharma · ‎11-21-2017

@Jay Kumar SenSharma IT Worked pefectly !!!! A heartily thank you for your valuable support. Appreciate the way you tackle the issues. Appreciate your way of providing perfect solution with smooth writing skill.

rohit_r_sharma · ‎11-21-2017

Found this in ambari-server.log : 21 Nov 2017 12:55:02,177 INFO [pool-18-thread-1] MetricsServiceImpl:65 - Attempting to initialize metrics sink 21 Nov 2017 12:55:02,178 INFO [pool-18-thread-1] MetricsServiceImpl:81 - ********* Configuring Metric Sink ********** 21 Nov 2017 12:55:02,178 INFO [pool-18-thread-1] AmbariMetricSinkImpl:95 - No clusters configured. 21 Nov 2017 12:55:12,117 ERROR [alert-event-bus-1] AlertReceivedListener:480 - Unable to process alert ambari_agent_version_select for an invalid cluster named abcdefg ambari-audit.log: 2017-11-21T12:54:37.162+0530, User(admin), RemoteIp(Desktop-IP), RequestType(POST), url(http://10.128.20.10:8080/api/v1/version_definitions?dry_run=true), ResultStatus(201 Created) 2017-11-21T12:55:17.758+0530, User(admin), RemoteIp(Desktop-IP), Operation(Repository version removal), RequestType(DELETE), url(http://ambari-server_fqdn:8080/api/v1/stacks/HDP/versions/2.6/repository_versions/1), ResultStatus(500 Internal Server Error), Reason(org.apache.ambari.server.controller.spi.SystemException: Repository version can't be deleted as it is used by the following hosts: CURRENT on node03-FQDN), Stack(HDP), Stack version(2.6), Repo version ID(1)

rohit_r_sharma · ‎11-21-2017

Hi all, I am confused to call it as error/issue. While installing automatic Ambari 2.6 with HDP 2.6.3 on 4 node cluster in CLUSTER INSTALL WIZARD all went fine till i reached Review step and clicked on deploy. The installation is stuck on step 8 of CLUSTER INSTALL WIZARD review and Deploy button faded. Steps Performed: 1) Ambari-server and Agent restart on all 4 node for 5 times. 2) Step 0 to step 8 and step 8 to step 0 for 5 times. 3) Tested on Chrome, IE and Mozilla same steps for 3 times. is that any thing i missed to perform please let me know?

rohit_r_sharma · ‎11-20-2017

@Rahul Narayanan Use of NTPSERVERARGS=iburst Refer this link hope it helps you

rohit_r_sharma · ‎11-16-2017

@Rahul Narayanan Kindly check on your host when you write command $hostname the output exactly matches the fqdn you used specified in repo's. If not then configure in /etc/sysconfig/network NETWORKING=yes HOSTNAME=fqdn NTPSERVERARGS=iburst Hope this helps you.

rohit_r_sharma · ‎11-16-2017

Thanks @Jay Kumar SenSharma It worked!!! 🙂

rohit_r_sharma · ‎11-08-2017

Hi all, The ambari-server is upgraded from 2.5.3 to 2.6 in my cluster. The repository is visible and updated ambari rpm through yum. The ambari-server setup went smooth and "completed successfully". The ambari-server start command fails to start ambari by, Unable to determine server PID and Ambari Server java process died with exitcode 255. Full error message is shown below: ambari-server start Using python /usr/bin/python Starting ambari-server Ambari Server running with administrator privileges. Organizing resource files at /var/lib/ambari-server/resources... Ambari database consistency check started... Server PID at: /var/run/ambari-server/ambari-server.pid Server out at: /var/log/ambari-server/ambari-server.out Server log at: /var/log/ambari-server/ambari-server.log Waiting for server start.........Unable to determine server PID. Retrying... ......Unable to determine server PID. Retrying... ......Unable to determine server PID. Retrying... ERROR: Exiting with exit code -1. REASON: Ambari Server java process died with exitcode 255. Check /var/log/ambari-server/ambari-server.out for more information. /var/log/ambari-server/ambari-server.out: Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=128m; support was removed in 8.0 An unexpected error occured during starting Ambari Server. org.apache.ambari.server.AmbariException: Current database store version is not compatible with current server version, serverVersion=2.6 .0.0, schemaVersion=2.5.2 at org.apache.ambari.server.checks.DatabaseConsistencyCheckHelper.checkDBVersionCompatible(DatabaseConsistencyCheckHelper.java:24 5) at org.apache.ambari.server.controller.AmbariServer.main(AmbariServer.java:1058) Please help at the earliest... Thanks alot.

rohit_r_sharma · ‎10-23-2017

@Alexander Daher Thank you!!!... The steps worked for me. I have small question, my linux server on which the ambari-server is running rebooted as it went unresponsive, so in this how only postgresql service stopped and other all services were running? any idea?

rohit_r_sharma · ‎10-09-2017

@Jay SenSharma 1) No, i'm not getting HTTP ERROR 401. 2) No its not kerberized cluster 3) Amabri-2.5.1.0 thanks for the instant reply.

rohit_r_sharma · ‎10-05-2017

Hi, I am using HDP-2.6 with Amabri-2.5.1.0. The insert query is written in Hive, when i click on Tez view i can see insert query is running but with following error and statement: Adapter operation failed » 404: Failed to fetch results by the proxy from url: http://srdcb0004gpm04.ril.com:8088/proxy/application_1496812988153_0058/ws/v2/tez/dagInfo?counters=&dagID=2&_=1 Details: { "trace": "<html>\n<head>\n<meta http-equiv=\"Content-Type\" content=\"text/html; charset=ISO-8859-1\"/>\n<title>Error 404 Not current Dag: 2</title>\n</head>\n<body><h2>HTTP ERROR 404</h2>\nProblem accessing /ui/ws/v2/tez/dagInfo. Reason:\n<pre> Not current Dag: 2</pre><hr />Powered by Jetty:// \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n</body>\n</html>\n", "message": "Failed to fetch results by the proxy from url: http://srdcb0004gpm04.ril.com:8088/proxy/application_1496812988153_0058/ws/v2/tez/dagInfo?counters=&dagID=2&_=1507211109914&user.name=admin", "status": 404 } Request: { "adapterName": "dag-am", "url": "http://10.128.20.10:8080/api/v1/views/TEZ/versions/0.7.0.2.6.1.0-118/instances/TEZ_CLUSTER_INSTANCE/resources/rmproxy/proxy/application_1496812988153_0058/ws/v2/tez/dagInfo", "responseHeaders": { "pragma": "no-cache", "x-content-type-options": "nosniff", "x-frame-options": "SAMEORIGIN", "content-type": "application/json", "cache-control": "no-store", "user": "admin", "content-length": "2111", "x-xss-protection": "1; mode=block" }, "queryParams": { "dagID": 2, "counters": "" }, "namespace": "app" } Stack: Error: Adapter operation failed at ember$data$lib$adapters$errors$AdapterError.EmberError (http://10.128.20.10:8080/views/TEZ/0.7.0.2.6.1.0-118/TEZ_CLUSTER_INSTANCE/assets/vendor.js:24586:21) at new ember$data$lib$adapters$errors$AdapterError (http://10.128.20.10:8080/views/TEZ/0.7.0.2.6.1.0-118/TEZ_CLUSTER_INSTANCE/assets/vendor.js:80222:50) at Class.handleResponse (http://10.128.20.10:8080/views/TEZ/0.7.0.2.6.1.0-118/TEZ_CLUSTER_INSTANCE/assets/vendor.js:81517:16) at Class.hash.error (http://10.128.20.10:8080/views/TEZ/0.7.0.2.6.1.0-118/TEZ_CLUSTER_INSTANCE/assets/vendor.js:81597:33) at fire (http://10.128.20.10:8080/views/TEZ/0.7.0.2.6.1.0-118/TEZ_CLUSTER_INSTANCE/assets/vendor.js:3320:30) at Object.fireWith [as rejectWith] (http://10.128.20.10:8080/views/TEZ/0.7.0.2.6.1.0-118/TEZ_CLUSTER_INSTANCE/assets/vendor.js:3432:7) at done (http://10.128.20.10:8080/views/TEZ/0.7.0.2.6.1.0-118/TEZ_CLUSTER_INSTANCE/assets/vendor.js:8487:14) at XMLHttpRequest.<anonymous> (http://10.128.20.10:8080/views/TEZ/0.7.0.2.6.1.0-118/TEZ_CLUSTER_INSTANCE/assets/vendor.js:8826:9)

rohit_r_sharma · ‎07-20-2017

@Jay SenSharma I can see in the ambari ui that Node 4 in my cluster is giving the STALE alert. I verified the URL registered hosts and Hosts entry on all the nodes it seems perfect.

rohit_r_sharma · ‎07-17-2017

@Jay SenSharma Sorry to inform you i got this: Please Help !!!! Thank you

rohit_r_sharma · ‎07-17-2017

@Jay SenSharma It worked for now !!!!!!!!! thanks for the support.....

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