About Neelesh

Neelesh · ‎02-08-2017

Hi cjervis, Awaiting for your message.

Neelesh · ‎02-07-2017

Dear Team, How to change email id for an account on cloudera community portal.

Neelesh · ‎01-31-2017

@saranvisa In my case, Cloudera manager is on the same node where all other roles of CDH roles(Namenode,HbaseMaster, Spark,etc.) are installed. My question is if this node get crashed how to I monitor and mange the cluster via cloudera manager. Note - I have configured HA for namenode metadata and other roles. My concern is only for cloudera manager and it is using embedded postgresql.

Neelesh · ‎01-23-2017

Dear Experts, We have installed cloudera manager on two different server and specified both IP address in each of agent file. Will the agents commmunicate to both cloudera manager or not. Note. - We have done this for to make cloudera manager HA

Neelesh · ‎01-03-2017

Dear Experts, Is it recommended to run HDFS rebalancer command after decommission of region node (datanode) from HBase cluster in cloudera cdh 5.x

Neelesh · ‎01-02-2017

Dear experts, I am facing attached an error while browse directory on 50070 port after kerberos configuration. Permission denied when trying to open /webhdfs/v1/?op=LISTSTATUS: GSSException: No valid credentials provided (Mechanism level: Failed to find any Kerberos credentails)

Neelesh · ‎01-02-2017

This error has been resloved by removing and recreating kerberos configuration

Neelesh · ‎12-28-2016

Hi Chinumari, Please find attached details.

Neelesh · ‎12-27-2016

Dear Experts, I m facing the following an error when i am try "hdfs dfs -ls /" command. Caused by: javax.security.sasl.SaslException: GSS initiate failed [Caused by GSSException: No valid credentials provided (Mechanism level: Failed to find any Kerberos tgt)] [hdfs@nn1 ~]$ klist -ef Ticket cache: FILE:/tmp/krb5cc_493 Default principal: hdfs@CLOUDERA.LOCAL Valid starting Expires Service principal 12/27/16 12:19:35 12/28/16 12:19:35 krbtgt/CLOUDERA.LOCAL@CLOUDERA.LOCAL renew until 12/27/16 12:19:35, Flags: FRI Etype (skey, tkt): aes256-cts-hmac-sha1-96, aes256-cts-hmac-sha1-96 [hdfs@nn1 ~]$

Neelesh · ‎12-15-2016

Dear Experts, I want to setup DR of entire hadoop cluster which should replicate in real time. The current version is CDH 5.3 with Namenode HA and 5 datanodes with replication factor 3.

Neelesh · ‎12-01-2016

Dear Experts, I have following questions about Namenode metadata backup and restoration.Please answer the following questions. 1. Is the metadata backup is require in absence of Namenode HA configuration. 2. What are the steps to take backup and restoration for Namenode metadata. 3. How to test the Namenode metadata backup.

Neelesh · ‎11-28-2016

Yes, I am planning for namenode ha and for the same installing standby namenode with existing cloudera version 5.3.

Neelesh · ‎11-28-2016

Hi Martin, My reply is in green colour. - Do you currently have a cluster set up, or do you plan on starting one from scratch? -Currenty having cloudera express 5.3 production cluster. -If you do have a cluster set up, what is the current configuration like? The more detail, the better. -Hbase nosql database production cluster set up. -Do you have a particular reason for needing an older version of CDH? -Planning for Namenode HA and the current version of cloudera 5.3 express edition -What exactly do you mean by “automated”? Are we talking about automating cluster deployment? If that's the case, initial cluster deployment is generally done manually. -Planning to install existing cloudera version via Internet on standy Namenode for HA. By default latest version will be installed if we go for Internet installation then the verson will mismatched and may be it will impact on production cluster.

Neelesh · ‎11-20-2016

Dear Experts, Recently faced an issues when I rename a 'backup' directory to 'backup_old' which is presented on hdfs. I used the command "$ hdfs dfs -mv /backup backup_old" and I found 'backup_old' is not created on hdfs it suddenly disappear from hdfs. Could anyone tell me why I can not see the folder and where I can find it or I lost it.

Neelesh · ‎11-18-2016

Dear Experts, Is it require to disable the table in Hbase 1.0.0 before taking backup through Export command.

Neelesh · ‎11-10-2016

Dear Experts, How to install older version of CDH by automated way through cloudera manager.

Neelesh · ‎11-09-2016

Dear Experts All the datanodes nodes in cluster found below an error and could not contacted to cluster after installed cdh 5.9.0 on ubuntu. "Error, CM server guid updated, expected 85587073-270d-43d9-a44a-e213d9f7e45b, received 4c1402a5-8364-4598-a382-0c760710e897"

Neelesh · ‎11-03-2016

Dear Experts, Is data at rest encryption require cloudera enterprise license version.

Neelesh · ‎10-27-2016

Dear Experts, Where are the embedded postgresql database files store in Redhat for cloudera manager 5.4 i.e the physical location of database file.

Neelesh · ‎10-24-2016

Dear experts, How to export incremental backup in Hbase.

Neelesh · ‎10-24-2016

Harsh, Could you clarify answer for point no.1 1. Whether hbase snapshot make another copy of the table or not.

Neelesh · ‎10-24-2016

Dear experts, Could anyone explain first two column which is marked in yellow for output of 'hdfs df -du -h' command.

Neelesh · ‎10-20-2016

Dear experts, 1. Is the Hbase snapshot take only pointer of table or it make copy of entire hbase table. 2. What export snapshot does in hbase. 3. Is hbase snapshot allow in cloudera express version.

Neelesh · ‎09-18-2016

Dear Team, Kindly advice me on below queries. What is the difference between cloudera navigator and kerberos security. What is role of cloudera navigator in hadoop cluster security. Can we secure hadoop cluster without kerberos. Where to use cloudera navigator and where to use kerberos.

Neelesh · ‎09-07-2016

Dear Team, If I select Encrypt system on linux partition for datanode then is this encrypted the HDFS data? Kindly find attached screenshot for the same.

Neelesh · ‎08-11-2016

Dear Team, Task tracker is not starting on one of the datanode. It showing " error found before invoking supervisord: dictionary update sequence element #84 has legth 1;2 is required ” in CDH5.8.1 cluster. Attached is the screenshot of an error.

Neelesh · ‎08-11-2016

Dear Team, What is Gateway in cloudera and what it does in cluster. What is NFS gateway in cloudera and what it does in cluster. Thanks and Regards, Neelesh

Neelesh · ‎07-06-2016

Hi Team, 1. How to backup and restore hive metatstore in embeded postgresql for CDH5.7.0 cluster? 2. If the table is drop, then how to restore the metadata for that particular table in embeded postgresql. Regards, Neelesh

Neelesh · ‎06-12-2016

Hi Team, We have generated over 20 milion pdf files every month on one of our scanner with unique id name. I want to use cloudera search/solr for faster search and make it available for download for user. Following are my questions, 1. How to configure cloudera search for HDFS. Here all files are located /pdf folder in HDFS. 2 How to index and search for pdf files with unique id. e.g. ( INVSTD05112015.pdf)

Neelesh · ‎05-09-2016

I am looking for hive 2.0 for its one of the new feature . Hive 2.0 is now included HPL/SQL function which we do not have it in Hive version 1.1 https://blog.cloudera.com/blog/2016/03/apache-hive-2-0-is-released/ Is there any best way so we could run PL/SQL quries in Cloudera 5.7.0 cluster.

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Re: Change Email ID | Cloudera community account.

Change Email ID | Cloudera community account.

Re: Cloudera Manager HA | Agent-Config.ini

Cloudera Manager HA | Agent-Config.ini

Hbase region decommission | Rebalancer command

Permission denied | Kerberos | WebHdfs

Re: Kerberos | HDFS | Failed to find any Kerberos ...

Re: Kerberos | HDFS | Failed to find any Kerberos ...

Kerberos | HDFS | Failed to find any Kerberos tgt

Cloudera DR cluster setup

Namenode metadata backup and restoration

Re: Older version | CDH Installation

Re: Older version | CDH Installation

Rename folder on HDFS | Disappear

Hbase export command | Disable Table

Older version | CDH Installation

Error CM Server guid updated | CDH 5.9.0

At rest encryption | Cloudera License

Embedded Postgresql | Cloudera Manager

Hbase | Incremental export

Re: HBase Snapshot

Explain | hdfs du command output

HBase Snapshot

Cloudera Navigator | Kerberos Security

HDFS Encryption | Linux OS

TaskTracker not starting -CDH5.8.1

What is Gateway and NFS Gateway

Backup and Restore Hive Metastore in Postgres

PDF index and search | Solr| Cloudera Search

Re: Hive Upgrade from 1.1.0 to 2.0.0 in CDH5.7.0