About Scharan

Scharan · ‎09-22-2020

@lucky_day Can you try disabling and re-enabling the hive plugin (It requires a restart of Hive service)

Scharan · ‎09-17-2020

@9een Yes it is supported you can refer to the following links https://docs.cloudera.com/HDPDocuments/HDP3/HDP-3.1.4/authentication-with-kerberos/content/kerberos_optional_use_an_existing_ipa.html https://docs.cloudera.com/HDPDocuments/HDP3/HDP-3.1.5/ambari-authentication-ldap-ad/content/amb_freeIPA_ladap_setup_example.html

Scharan · ‎09-17-2020

@Nivas12 You can define an alert dispatcher which Ambari will invoke when alerts fire: Refer https://cwiki.apache.org/confluence/display/AMBARI/Creating+a+Script-based+Alert+Dispatcher

Scharan · ‎09-04-2020

@saivenkatg55 Use the below commands to remove the background operation entry in ambari database. # select task_id,role,role_command from host_role_command where status='IN_PROGRESS'; The above command will list all IN_PROGRESS status , You can also check for QUEUED or PENDING STATE by replacing 'IN_PROGRESS' with QUEUED or PENDING # update host_role_command set status='ABORTED' where status='QUEUED'; Use the above command to change the state to ABORTED

Scharan · ‎08-01-2020

@Marek You need to install numpy package on all the node managers, Use below command to install numpy package and rerun the code. # pip install numpy

Scharan · ‎07-26-2020

@ashish_inamdar can you confirm is ambari-server and ambari agent is running as non-root user

Scharan · ‎06-27-2020

@shrikant_bm Can you try changin "sun.security.krb5.disableReferrals=false" to "sun.security.krb5.disableReferrals=true" in java.security file under JDK HOME on namenode host Example: /usr/java/jdk1.8.0_252/jre/lib/security/java.security file.

Scharan · ‎06-18-2020

@Udhav From the output I see database is running on ambari server host , Can you check is mysql is up and running

Scharan · ‎06-17-2020

@Udhav check is database properties are correctly set in ambari.properties file # cat /etc/ambari-server/conf/ambari.properties |grep -i jdbc

Scharan · ‎06-05-2020

@shrikant_bm Can you confirm java version

Scharan · ‎04-26-2020

@shrikant_bm Are you able to do kinit on /etc/security/keytabs/nn.service.keytab

Scharan · ‎04-26-2020

@karnal Can you check does the node "sandbox-hdp zeppelin-server" have access to internet?

Scharan · ‎01-20-2020

@nsup you can tune ats-hbase memory in yarn configuration as below. yarn_hbase_master_memory yarn_hbase_regionserver_memory yarn_hbase_client_memory

Scharan · ‎01-12-2020

@murali2425 Refer https://community.cloudera.com/t5/Community-Articles/Storing-Apache-NiFi-Versioned-Flows-in-a-Git-Repository/ta-p/248713

Scharan · ‎11-14-2019

@jeff_watson To enable debug on superset logs, follow below steps Stop Superset from Ambari Add this line at the end of /usr/hdp/current/superset/lib/python3.4/site-packages/superset/__init.py logging.getLogger('flask_appbuilder').setLevel(logging.DEBUG) 3. Then Start superset manually using following command source /usr/hdp/current/superset/conf/superset-env.sh ; /usr/hdp/current/superset/bin/python3.4 /usr/hdp/current/superset/bin/gunicorn --log-level debug -b `hostname`:9088 superset:app

Scharan · ‎11-07-2019

@Manoj690 Check if their is any ranger policy or you can try disabling Authorization for HiveServer2 as follows: ### Ambari UI > Hive > Configs > Advanced > Advanced Hiveserver2-Site > Uncheck "Enable Authorization" Option > Restart Hive Service and run the query

Scharan · ‎11-07-2019

@nicolamarangoni can you share interpreter settings

Scharan · ‎11-07-2019

@Harish-hadoop Add the queue name in hive.url property in jdbc interpreter settings hive.url=jdbc:hive2://<zookeeper quorum>/;serviceDiscoveryMode=zooKeeper;zooKeeperNamespace=hiveserver2?tez.queue.name=<Queue Name> EXAMPLE: hive.url= jdbc:hive2://test1:2181,test2:2181,test3:2181/;serviceDiscoveryMode=zooKeeper;zooKeeperNamespace=hiveserver2?tez.queue.name=sai

Scharan · ‎11-07-2019

@asmarz centos 7.7 is not tested, I suggest you to go with centos 7.6

Scharan · ‎11-07-2019

It looks like now you are able to open HBase shell. If the table is disabled, "> is_disabled ’t1′ "command will return true. ERROR: org.apache.hadoop.hbase.NotServingRegionException: hbase:meta,,1 is not online on gaian-lap386.com,16020,1573102321915 Check is the region server on gaian-lap386.com is up and running

Scharan · ‎11-07-2019

@Manoj690 Jdk 8 is supported with the currenty hbase version.

Scharan · ‎11-07-2019

@Manoj690 Jdk 11 is not yet tested, refer below document https://hbase.apache.org/book.html#java

Scharan · ‎11-07-2019

@Manoj690 What is the java version

Scharan · ‎11-07-2019

@sashik Can you try installing pyOpenSSL in the Python3

Scharan · ‎11-07-2019

@sashik Which python version you are using Make sure openssl package is installed

Scharan · ‎11-06-2019

can you share the output of below command # hadoop checknative -a | grep hadoop

Scharan · ‎11-06-2019

ERROR datanode.DataNode (DataNode.java:secureMain(2883)) - Exception in secureMain java.lang.RuntimeException: Although a UNIX domain socket path is configured as /var/lib/hadoop-hdfs/dn_socket, we cannot start a localDataXceiverServer because libhadoop cannot be loaded. Above error occurs when libhadoop.so library is missing in /usr/hdp/current/hadoop/lib/native/ To resolve this issue copy the missing library from another healthy node @Muralikrishna

Scharan · ‎11-06-2019

@wdailey Use "ldapRealm=org.apache.zeppelin.realm.LdapRealm" Below is the template for your reference ldapRealm=org.apache.zeppelin.realm.LdapRealm ldapRealm.contextFactory.systemUsername =cn=manager,dc=charan,dc=com ldapRealm.contextFactory.systemPassword =admin ldapRealm.contextFactory.authenticationMechanism=simple ldapRealm.contextFactory.url=ldap://test1:389 ldapRealm.authorizationEnabled=true #ldapRealm.pagingSize = 20000 ldapRealm.searchBase= ldapRealm.userSearchBase= ldapRealm.groupSearchBase= ldapRealm.userObjectClass= ldapRealm.userSearchAttributeName = uid ldapRealm.userSearchScope = subtree ldapRealm.groupSearchScope = subtree ldapRealm.userSearchFilter= ldapRealm.memberAttribute = member ldapRealm.memberAttributeValueTemplate=(name={0})

Scharan · ‎10-24-2019

@IrenaKon Refer below link https://docs.cloudera.com/HDPDocuments/HDP2/HDP-2.6.5/index.html

Scharan · ‎10-23-2019

@mkobe Check is Postgres i up and running and make sure pg_hba.conf file is connfigured correctly under /var/lib/psql/pg_hba.conf

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Last Visited	‎09-27-2020 11:27 AM

Date Registered	‎07-09-2019 07:05 AM
Last Visited	‎09-27-2020 11:27 AM
Total Messages Posted	90
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Re: ranger error RangerServiceNotFoundException

Re: how to add the queue name zeppelin jdbc interp...

Re: Zeppelin 0.8 on HDP 3.1.0.0 class org.apache.z...

Re: Where can I download HDP 2.6.5

Re: Ranger Password reset

Re: ranger error RangerServiceNotFoundException

Re: FREEIPA support matrix + HDP + Ambari

Re: Ambari Alerts to slack

Re: Ambari Background operation removal

Re: Jupyter notebook > ImportError: No module name...

Re: Failed to Install Activity Analyzer Install

Re: namenode failed to start after enabling kerber...

Re: Ambari server start always fails

Re: Ambari server start always fails

Re: namenode failed to start after enabling kerber...

Re: Namenode not starting after kerberos enable

Re: Zeppelin intrepreters not being able to instal...

Re: How to change ats-hbase RegionServer container...

Re: is it possible to integrate Apache NiFi with G...

Re: How to configure Superset to use LDAP?

Re: Hbase shell error

Re: Zeppelin-Livy-Spark: Connection refused from Y...

Re: how to add the queue name zeppelin jdbc interp...

Re: Compatibility CEntos 7.7 with AMBARI last ver...

Re: Hbase shell error

Re: Hbase shell error

Re: Hbase shell error

Re: Hbase shell error

Re: SSL error for Livy

Re: SSL error for Livy

Re: unable to start the data node in hdp3.1 amabri...

Re: unable to start the data node in hdp3.1 amabri...

Re: Zeppelin 0.8 on HDP 3.1.0.0 class org.apache.z...

Re: Where can I download HDP 2.6.5

Re: Error While Trying to Test Connection to Hive ...