though i gave the permission to view user interface, i am still facing this issue. ... View more

Hi Team, Can any one help to resolve this issue, Resources manager wnet down due to this not able start them. Error:- Service did not start successfully; not all of the required roles started: only 23/25 roles started. Reasons : Service has only 0 ResourceManager roles running instead of minimum required 1. ... View more

@emaxwell  A few suggested additions to this excellent article: 1. The keystore password is not required to list the keystore via the keytool command.  When prompted for a password, you can just hit "enter" without entering a password.  The password would be needed if you want to export the actual privateCertEntry from the keystore which is not necessary in this procedure. 2. The ldap-provider configured in the login-identity-providers.xml file has two options for how to identify the authenticated ldap user: <property name="Identity Strategy">USE_DN</property> Above will use the full Distinguished Name (DN) as you mention in the article. <property name="Identity Strategy">USE_USERNAME</property>  Above will use the string entered by user at the login window as the user identity. 3. Identity mapping properties in the nifi.properties file have three properties: nifi.security.identity.mapping.pattern.<unique string>=<Java regex> nifi.security.identity.mapping.value.<unique string>=<Resulting string when java regex matches, Java Regex capture groups can be used here> nifi.security.identity.mapping.transform.<unique string>=<NONE, LOWER, UPPER> The <unique string> can be anything but must be same exact string for all three properties.  Also patterns are checked in alphanumeric order against the identity strings. First matching pattern has its value and transform applied. So you want to make sure the more complex patterns come first to avoid having wrong pattern's value and transform being applied.  So a pattern like "^(.*)$" should definitely come last. The "transform" property allows you to apply an all uppercase, all lowercase, or no transform to the resulting value string. Thanks, Matt ... View more

Hi,   How to configure the retention period for CDP INFRA SOLR? Couldn't find the options suggested in this post in Cloudera Manager.   Thanks, Megh ... View more

Hello  @jstraub , Can you please share the script? Many thanks in advance!. ... View more

Please watch the below video:- https://www.youtube.com/watch?v=fBeN8VQm0_Q Please like comment share and subscribe my channel, If you loved it. ... View more

you should install ambari-server and ambari-agent on the first node wich you want to install hdfs service for example . the other nodes install ambari-agent only . dont forget to change (ambari-agent.ini ) hostname and the hosts file with (ip and hostname of all machines. ... View more

Hi,    I have tried the same steps in Ambari.  I am using HDP 3.1.0.0-78. Here is what I have done: Step 1:  Went to 'Yarn -> Configs -> Advanced -> Scheduler' and set the properties that you have given.  Step 2: Restarted all the affected components in Yarn. However, I am getting an error  java.io.IOException: Failed to initialize FairScheduler Caused by: org.xml.sax.SAXParseException; lineNumber: 19; columnNumber: 1; XML document structures must start and end within the same entity.   Also, in "Scheduler" component in Yarn, I am only getting "Capacity Scheduler" related parameters. If I add "fair-scheduler.xml" in the same folder as that of "yarn-site.xml" and specify parameters only for "default" queue (Here I am not adding any new queue) only to change its scheduling mode to Fair, how to do it?    Can you please guide me? ... View more

Hi @Jonas Straub,do as your article ,i create collection by curl command,and got the 401 error: curl –negotiate –u :  ‘http://myhost:8983/solr/admin/collections?action=CREATE&name=col&numShards=1&replicationFactor=1&collection.configName=_default&wt=json’ {   “responseHeader”:{ “status”:0, “QTime”:31818},   “failure”:{     “myhost:8983_solr”:”org.apache.solr.client.solrj.impl.HttpSolrClient$RemoteSolrException:Error from server at http://myhost:8983/solr:Excepted mime type application/octet-stream but got text/html. <html> <head> <meta http-equiv=\”Content-Type\” content=\”text/html;charset=utf-8\”/>” <title> Error 401 Authentication required </title>   </head>   <body> <h2>HTTP ERROR 401</h2> <p> Problem accessing /solr/admin/cores.Reason:   <pre> Authentication required</pre> </p>   </body> </html> } }   When I debug the solr source code, found this exception is returned by “coreContainer.getZKController().getOverseerCollectionQueue().offer(Utils.toJson(m), timeout)”,so I doubt maybe the solr don’t authenticate zookeeper info and I use a no-kerberos zookeeper to replace the Kerberos zookeeper, solr collection can be created successfully. How to solve the problem with Kerberos ZK? ... View more