About nauseous

nauseous · ‎08-25-2017

There is no ntpupdate command. You can update ntp by typing # ntpdate -u {Main node sync'ed to NTP server IP address or Domain name here} Example # ntpdate -u domains.ntp.com OR # ntpdate -u 192.168.0.2 You should only have 1 node announcing NTP and other nodes getting time from main node.

nauseous · ‎08-29-2016

I use puppet and foreman to configure each system the same for all ntp clients to a central ntp server. Great information here http://www.linuxsecrets.com/blog/4tutorial-and-install-howto/2014/06/26/906-how-to-install-and-configure-linux-ntp-server-and-client

nauseous · ‎01-11-2016

OK, found out how nevermind.

nauseous · ‎01-07-2016

Ok, I'm used to terasort but I was just introduced to Spark. What tools are there for Spark such? Just running some benchmark or workloads to get some performance stats. I was told GrapX is the tool I need to use for benchmarks? Correct?

nauseous · ‎06-11-2015

What monitoring software are you using?

nauseous · ‎06-11-2015

Why don't you just install Cloudera on a single node and deploy it out to the four nodes you specify? If you plan to install the way you're doing it now you will run into a lot of problems. Download the *.bin and run it should be all you need.

nauseous · ‎06-11-2015

Hi anton_85 Try this article, it explains time zones and settings which is very well explained. http://www.linuxsecrets.com/easyblog/2015/01/30/1374-fixing-date-and-setting-time-and-zone-on-rhel-6-from-command-line

nauseous · ‎05-13-2015

You could just go in the /tmp and do the following and try the installation again which I just did to test and it worked perfectly. # cd /tmp # rm -rf * <-- make sure you are in the /tmp folder by doing a pwd # shutdown -r now < --- restart the system # ./cloudera*.bin <-- start installation Give us the info you get after this.

nauseous · ‎05-06-2015

What does Selinux show? cat /etc/selinux/config Should show: # This file controls the state of SELinux on the system. # SELINUX= can take one of these three values: # enforcing - SELinux security policy is enforced. # permissive - SELinux prints warnings instead of enforcing. # disabled - No SELinux policy is loaded. SELINUX=disabled <--- This should be disabled and so should iptables/ip6tables # SELINUXTYPE= can take one of these two values: # targeted - Targeted processes are protected, # mls - Multi Level Security protection. SELINUXTYPE=targeted

nauseous · ‎05-06-2015

Can you show complete error?

nauseous · ‎05-05-2015

I never had that issue but I did issue this on all nodes to every other node. # ssh-keygen When generating keys, enter through no entry needed for generating keys {enter, enter, enter, enter} # ssh-copy-id localhost <-- have username and password used for cloudera that you setup # ssh-copy-id 127.0.0.1 <-- have username and password used for cloudera that you setup # ssh-copy-id {anyEx-IP-Address-you-have-configured} <-- have username and password used for cloudera that you setup I don't know how you're setup but this is worth a try. I use this on Apache Hadoop as well and works perfectly.

nauseous · ‎05-04-2015

I had similar error and found out cloudera was using a hostname ssh-key that I never setup because of nsswitch defaults were reversed. If you have a multi-node cluster make sure you run : # ssh-copy-id node1 thru node 200 <-- Resolved my issue # ssh-copy-id node1 This was also causing database connection issue. The user did not have the ssh id. Hope this helps

nauseous · ‎04-30-2015

I just did a roll back which resolved the issue. We have been testing apache hadoop as well so that's why I was delayed to answer. Thanks

nauseous · ‎04-15-2015

What is the error message when you try upgrading? I usually watch mine with: tail -f /var/log/cloudera-*/*.log Then I find the issue and resolve it accordingly. Can you share the error logs please.

nauseous · ‎04-15-2015

Current CDH5 and RedHat 6.6 and I have dn to a SSD drive but I need to change cloudera to read/write more or not to write any data to memory but to disk. What setting would I change to produce 100% disk reads and writes?

nauseous · ‎04-13-2015

What can I check to resolve this issue? Had someone changing stuff and have no idea what they did to kill my hadoop cloudera. 15/04/13 16:28:18 INFO mapred.FileInputFormat: Total input paths to process : 10 15/04/13 16:28:18 INFO mapred.JobClient: Running job: job_201504131620_0001 15/04/13 16:28:19 INFO mapred.JobClient: map 0% reduce 0% 15/04/13 16:28:22 INFO mapred.JobClient: Task Id : attempt_201504131620_0001_m_000011_0, Status : FAILED java.lang.Throwable: Child Error at org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:250) Caused by: java.io.IOException: Task process exit with nonzero status of 2. at org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:237)

nauseous · ‎04-06-2015

Did that resolve the issue skylark?

nauseous · ‎04-06-2015

Hi Tgrayson I believe Anant Raman asked the question.

nauseous · ‎04-02-2015

Hi eafonsof Updating your kernel version will resolve the issue most likely. I updated mine to kernel 3.18.x and resolved the issue.

nauseous · ‎04-02-2015

Have you tried upgrading it again from cloudera console? I had similar issues and after removing the cluster node and upgrading, adding it back resolved the issue without deleting any data. It worked pretty smooth. Let me know how it goes.

nauseous · ‎04-02-2015

Why do you not use the AWS loop interface for cloudera and set it in your hosts? Did you open the firewall for port 7180? When I setup Cloudera on AWS or LiNode I use loop interfaces to connect 5 to 10 machines, each system is then configured the same with iptables on loop. I think people might be using the public IP addresses unless you just need console access to public. I usually just for port forward from loop to public interface with ssh keys.

nauseous · ‎04-02-2015

I can't see the screenshot 😞

nauseous · ‎04-02-2015

I had bad luck with 6.1 so I updated my cluster systems to CentOS 6.6/RedHat 6.6 or Scientific Linux 6.6 and they all worked without issues. I would upgrade your OS or version manipulation.

nauseous · ‎04-02-2015

Hi Prasad_kvr You can actually do it by issuing chroot where you want cloudera installed but I usually just let the cloudera install the packages by default. Then I change the cloudera default datanode directories to reflect where my SSD drives are mounted to. Example: all my cloudera machines storage locations are in /home/ssd so I insert /home/ssd/dn. This is what you're looking for correct?

nauseous · ‎04-02-2015

Try 0.2 or 0.1

nauseous · ‎04-02-2015

Hi VikramGoya l Can you do a yum update or can you browse with like lynx or links? I had similiar issues and found either I have to define gateway interface, environment, or proxy. Also if you haven't yet I put all my proxy settings in /etc/environment then just issue the # . /etc/environment or # source /etc/environment and test connectivity. Hope it helps. Let us know how it goes.

nauseous · ‎04-02-2015

I'll work on the documentation this weekend Something you can understand without having to click another link,link, link to find information :-).

nauseous · ‎04-01-2015

Great information dlo I'll keep that in mind. Always learning something new each day 🙂 Thanks

nauseous · ‎04-01-2015

I use it and works perfectly. No issues no errors.

nauseous · ‎04-01-2015

It's an alternative dlo which might be faster for some. I use it because the process in cloudera can be understood at the command line and then by understanding more you can also find issues, configuration changes and understand the operations better. Also Cloudera website also annouces these options can be used instead of cloudera manager interface and knowing it can be faster. All these options are well documented on Cloudera. I found that cloudera interface isn't always working the way it should on settings. What I mean they don't take effect some times and using the CLI actually is a way of verifying and speeding up the process.

Online	Offline
Last Visited	‎01-13-2016 06:33 PM

Date Registered	‎03-06-2015 12:19 PM
Last Visited	‎01-13-2016 06:33 PM
Total Messages Posted	61
Total Kudos Received	5

Re: Server error after someone change config

Re: Input path does not exist: hdfs://node0:8020/u...

Re: Need to get maximum network performance with C...

Re: Cloudera CDH5 Changing Launched Maps 100 to 0

Re: How do I resolve clock offset issue?

Re: How do I resolve clock offset issue?

Re: Spark - Benchmark Spark Tools

Spark - Benchmark Spark Tools

Re: How to configure cloudera to raise snmp trap w...

Re: installation problem

Re: How do I resolve clock offset issue?

Re: Cloudera 5.0.1 Installation is failing

Re: Cloudera 5.0.1 Installation is failing

Re: Cloudera 5.0.1 Installation is failing

Re: Cloudera 5.0.1 Installation is failing

Re: Cloudera 5.0.1 Installation is failing

Re: Server error after someone change config

Re: Lost HDFS data when upgrade of CM + CDH

SUT testing on hadoop for all disk reads/writes

Server error after someone change config

Re: cloudera director bootstrap failed on "hostnam...

Re: Shutdown and power off to move a CDH cluster p...

Re: How to fix (workaround) TaskTracker shutdown d...

Re: Datanode issue after CDH5.2 upgrade

Re: CDH install

Re: Cant set proxy server during install of 5.3

Re: CDH in CentOS 6.1 - Known issues ?

Re: I need to install CDH 5.2 manually, but need t...

Re: warning:java

Re: Cloudera Manager Installation failed

Re: hello everyone, I'm installing hadoop using cl...

Re: Shutdown and power off to move a CDH cluster p...

Re: Cloudera support on Cent OS 6.6

Re: Shutdown and power off to move a CDH cluster p...