About mustafakemal_ma

mustafakemal_ma · ‎04-18-2018

Hello, is it possible to provide authentication to jupyter notebooks via LDAP? I couldn't see something in official documents, there are a few github projects.

mustafakemal_ma · ‎04-10-2018

Thanks @Geoffrey Shelton Okot I have already a Zeppelin instance in a kerberized cluster. Should I do extra configuration for kerberos authentication? I couldn't login to zeppelin ui with a kerberos principal.

mustafakemal_ma · ‎04-10-2018

Hello, is it possible to do authentication only with kerberos principal in a kerberized cluster? (without using AD or LDAP) Regard.

mustafakemal_ma · ‎10-11-2017

Hello, I tried a few things. Regenerated keytabs, checked ticket issues, check read accesses of keytabs...There were no problems. I also tried to delete problematic service, remove zookeeper folder(I faced with 'no authentication' error and i could removed with using super digest as explained here; https://community.hortonworks.com/articles/29900/zookeeper-using-superdigest-to-gain-full-access-to.html) and added again but the problem had continued. I resolved issue with adding security.auth_to_local rules to zokeeper environment. I added rules for problematic services to SERVER_JVMFLAGS in zookeeper-env template like this and restart zookeeper and other related services. -Dzookeeper.security.auth_to_local=RULE:[2:\$1@\$0](hbase@MY_REALM)s/.*/hbase/RULE:[2:\$1@\$0](infra-solr@MY_REALM)s/.*/infra-solr/RULE:[2:\$1@\$0](rm@MY_REALM)s/.*/rm/

mustafakemal_ma · ‎10-09-2017

Hello, after hadoop kerberization we are facing an issue about some services, these services don't start. These services are yarn resource manager, hbase regionservers, ambari-infra, logsearch. Problem seems same, they are all "No auth" error for related directories. Ambari-infra error; KeeperErrorCode = NoAuth for /infra-solr org.apache.zookeeper.KeeperException$NoAuthException: KeeperErrorCode = NoAuth for /infra-solr at org.apache.zookeeper.KeeperException.create(KeeperException.java:113) at org.apache.zookeeper.KeeperException.create(KeeperException.java:51) at org.apache.zookeeper.ZooKeeper.setACL(ZooKeeper.java:1399) at org.apache.ambari.logsearch.solr.util.AclUtils.setRecursivelyOn(AclUtils.java:77) at org.apache.ambari.logsearch.solr.commands.SecureSolrZNodeZkCommand.executeZkCommand(SecureSolrZNodeZkCommand.java:63) at org.apache.ambari.logsearch.solr.commands.SecureSolrZNodeZkCommand.executeZkCommand(SecureSolrZNodeZkCommand.java:39) at org.apache.ambari.logsearch.solr.commands.AbstractZookeeperRetryCommand.createAndProcessRequest(AbstractZookeeperRetryCommand.java:38) at org.apache.ambari.logsearch.solr.commands.AbstractRetryCommand.retry(AbstractRetryCommand.java:45) at org.apache.ambari.logsearch.solr.commands.AbstractRetryCommand.run(AbstractRetryCommand.java:40) at org.apache.ambari.logsearch.solr.AmbariSolrCloudClient.secureSolrZnode(AmbariSolrCloudClient.java:170) at org.apache.ambari.logsearch.solr.AmbariSolrCloudCLI.main(AmbariSolrCloudCLI.java:526)

mustafakemal_ma · ‎08-07-2017

Thanks @Abdelkrim Hadjidj. Do you mean software delete by logical deleting? (Not actually delete, update some fields) Are there any native solution for mongodb or cassandra? What do you think about using triggers? (writing insert,delete,update records to a table) Regards.

mustafakemal_ma · ‎08-07-2017

Hello, QueryDatabaseTable processor provides to capture inserts. Is it possible to get updates and deletes without a trigger or postgresql solution? Regards.

mustafakemal_ma · ‎08-01-2017

I found the solution. It happens because "atlas_titan" is a zombie hbase table. It can't be created(hbase says table exists) and it can't be dropped(hbase says table does not exist). This happens when table doesn't exist in hbase but exists in zookeeper. It should be deleted from zookeeper. $ hbase zkcli [zk: ...] ls /hbase-unsecure/table [zk: ...] rmr /hbase-unsecure/table/ATLAS_ENTITY_AUDIT_EVENTS [zk: ...] rmr /hbase-unsecure/table/atlas_titan [zk: ...] quit Then restart atlas, it should recreate hbase tables and application should be up a few seconds later.

mustafakemal_ma · ‎08-01-2017

Hello, I installed HDP 2.6, atlas server seems working but it has a error which says atlas ui does not work. There is an error like this which occur during start of atlas; ".... Caused by: com.thinkaurelius.titan.diskstorage.TemporaryBackendException: Temporary failure in storage backend at com.thinkaurelius.titan.diskstorage.hbase.HBaseStoreManager.ensureTableExists(HBaseStoreManager.java:720) at com.thinkaurelius.titan.diskstorage.hbase.HBaseStoreManager.ensureColumnFamilyExists(HBaseStoreManager.java:792) at com.thinkaurelius.titan.diskstorage.hbase.HBaseStoreManager.openDatabase(HBaseStoreManager.java:474) at com.thinkaurelius.titan.diskstorage.hbase.HBaseStoreManager.openDatabase(HBaseStoreManager.java:455) at com.thinkaurelius.titan.diskstorage.Backend.getStandaloneGlobalConfiguration(Backend.java:387) ... 40 more Caused by: org.apache.hadoop.hbase.TableExistsException: atlas_titan .... "

mustafakemal_ma · ‎06-30-2017

Hello, I am trying to install HDP 2.6 on RHEL 7.2 ppc64le. Installation over ambari fails due to "Error: Package: hadoop_2_6_0_3_8-hdfs-2.7.3.2.6.0.3-8.ppc64le (HDP-2.6) Requires: libtirpc-devel" error.

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Cloudera Community

Re: Zookeeper problem after hadoop kerberization

Re: atlas ui doesn't work due to atlas_titan table

Re: Solr installation and management from Ambari

jupyter notebook ldap integration

Re: Zeppelin kerberos authentication

Zeppelin kerberos authentication

Re: Zookeeper problem after hadoop kerberization

Zookeeper problem after hadoop kerberization

Re: Nifi PostgreSQL CDC

Nifi PostgreSQL CDC

Re: atlas ui doesn't work due to atlas_titan table

atlas ui doesn't work due to atlas_titan table

HDP 2.6 requires libtirpc-devel