Member since
02-18-2016
141
Posts
19
Kudos Received
18
Solutions
My Accepted Solutions
Title | Views | Posted |
---|---|---|
5115 | 12-18-2019 07:44 PM | |
5145 | 12-15-2019 07:40 PM | |
1814 | 12-03-2019 06:29 AM | |
1833 | 12-02-2019 06:47 AM | |
5837 | 11-28-2019 02:06 AM |
11-28-2019
03:28 AM
@Manoj690 login to mysql and follow step 2 from below link https://docs.cloudera.com/HDPDocuments/Ambari-2.7.3.0/administering-ambari/content/amb_using_ambari_with_mysql_or_mariadb.html make sure you give. permission as per your ambari hostname(FQDN) also.
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11-28-2019
02:43 AM
From Ambari node can you try - mysql -u <ambari_DB_username> <Ambari_DB_name> -h <DB_hostname> -P <Port> Check if you are able to successfully login to the DB from ambari node.
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11-28-2019
02:19 AM
Hi @Manoj690 Now the error is different - "jdbc:mysql://xxxxx:3306/ambari" "ambari" "Password" com.mysql.jdbc.Driver
ERROR: Unable to connect to the DB. Please check DB connection properties.
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications
link failure Probably check connection to your DB server from ambari node. Login to ambari server and telnet - $telnet <DB_HOST> 3306 Make sure IPtables/selinux is disabled. If you think initial issue is resolved please close this topic my accepting the correct reply on thread. Will be happy to help you for above issue. Please keep posted.
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11-28-2019
02:06 AM
Hi @Manoj690 Can you copy - "/var/lib/ambari-server/resources/mysql-connector-java.jar" to "/usr/share/java/" and retry. Make sure you use correct java path for the java version you are pointing too.
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11-28-2019
12:50 AM
Hi @Manoj690 Can you share output of below commands - $ ls -ltr /usr/share/java/mysql.jar $find / -name mysql.jar $find / -name mysql-connector-java*.jar
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11-28-2019
12:47 AM
1 Kudo
Hi @laplacesdemon I agree with you and definately application/third party tools/components must be installed outside cluster or on individual new node to avoid major performance impacts. Regarding on how to manage the components if the hadoop version changes is pretty kind of devops question i feel. You always need to make some inventory of applications running along with your ecosystem components and their dependencies. Nearby you can use Nexus as centralized repository to fetch new versions which needs to be deployed on your application side[ie. Oracle Data Integrator and Jupyter Hub] with help of jenkins/some deployment tool. As per my experience i see resource related problems in case you think of installing application on edge nodes. So i will suggest that is not a good idea. Do revert if you have further points to highlight.
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11-25-2019
07:54 PM
Hi @Caranthir Can you try disabling and enabling the plugin again ? While you enable the plugin it adds/modifies below properties - Can you check if those properties are set properly after you enable ranger plugin for hdfs again? Also as already mentioned by @Shelton the repository config user must be configured if you are working in kerberized environment. If still you are not able to see the repository in Ranger UI then you can click on add symbol as shown below to add repository manually - You can specify details of namenode and other and "test connection" Monitor the logs of ranger and namenode while you test connection. If connection fails you can see errors in logs. Please post for further updates.
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11-25-2019
01:53 AM
1 Kudo
@Kou_Bou I suspect the file is not fully downloaded or corrupted either. You can check the size or checksum of the downloaded file. You can try downloading the file from - https://www.oracle.com/technetwork/java/javase/downloads/java-archive-javase8-2177648.html The size display on link is 176.92 MB jdk-8u144-linux-x64.tar.gz
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11-24-2019
05:50 PM
@Kou_Bou Thank you for the detailed output. As suspected the issue is with Java. You need to try using Oracle Java and test. Also as highlighted by @Shelton i too agree to use supported version and change java as per suggested steps. Do revert if you still face issue.
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11-22-2019
02:06 AM
Hi@m4x1m1li4n Can you confirm - Are the below ip's defined in /etc/hosts are public or private ipaddress? 13.48.140.49
13.48.181.38
13.48.185.39
13.53.62.160
13.48.18.0 Is the hostname defined in cloudera agent config.ini seems to be public hostname - "ec2-13-48-140-49.eu-north-1.compute.amazonaws.com" Can you try pointing both /etc/hosts and config.ini[hostname] to private IP within cluster and restart agent. I guess it might be the issue with public DNS.
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