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Hadoop and moreCloud, Hadoop, BigData, Analytics and all the fun with. Written by an hands on expert with long living experience.
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Cloud, Hadoop, BigData, Analytics and all the fun with. Written by an hands on expert with long living experience.
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Hadoop and more | mapredit.blogspot.com Reviews
https://mapredit.blogspot.com
Cloud, Hadoop, BigData, Analytics and all the fun with. Written by an hands on expert with long living experience.
mapredit.blogspot.com
Hadoop and more: Dezember 2013
https://mapredit.blogspot.com/2013_12_01_archive.html
BigData, DevOps, Disruptive Technologies, Cloud and all the fun with . Freitag, 27. Dezember 2013. How HDFS protects your data. Often we get questions how HDFS protects data and what the mechanisms are to prevent data corruption. Eric Sammer explain this en detail in Hadoop Operations. And setting to a higher value then a day helps too. Name fs.trash.interval /name. Description Number of minutes after which the checkpoint. Gets deleted. If zero, the trash feature is disabled. 1440 means 1 day. Data writt...
Hadoop and more: Juni 2014
https://mapredit.blogspot.com/2014_06_01_archive.html
BigData, DevOps, Disruptive Technologies, Cloud and all the fun with . Donnerstag, 12. Juni 2014. Remove HDP and Ambari completely. Its a bit hard to remove HDP and Ambari completely - so I share my removal script here. Works for me perfect, just adjust the HDFS directory. In my case it was /hadoop. Echo "= Stop Ambari and Hue". Ambari-server stop & ambari-agent stop. Echo "= Erase HDP and Ambari completely". Remove ambaris default hdfs dir. Echo "= Remove HDP and Ambari Repo". Remove the unwanted sockets.
Hadoop and more: Februar 2015
https://mapredit.blogspot.com/2015_02_01_archive.html
BigData, DevOps, Disruptive Technologies, Cloud and all the fun with . Montag, 16. Februar 2015. Hadoop and trusted MiTv5 Kerberos with Active Directory. For actuality here a example how to enable an MiTv5 Kerberos = Active Directory trust just from scratch. Should work out of the box, just replace the realms:. ALOLOCAL = local kerberos realm. ADREMOTE = AD realm. With your servers. The KDC should be inside your hadoop network, the remote AD can be somewhere. 1 Install the bits. On all hadoop nodes.
Hadoop and more: November 2013
https://mapredit.blogspot.com/2013_11_01_archive.html
BigData, DevOps, Disruptive Technologies, Cloud and all the fun with . Mittwoch, 13. November 2013. Export more as 10k records with Sqoop. If you want to export more as 10k records out of a RDBMS via sqoop, you have some settings and properties you can tweak. Enabling batch mode on the JDBC driver. Here you use the JDBC batching mode, which queues the queries and deliver batched results. Sqoopexport.records.per.statement. Here you have to know which VALUES you want to catch, but this. I'am an Hadoop engi...
Hadoop and more: Hive on Spark at CDH 5.3
https://mapredit.blogspot.com/2015/04/hive-on-spark-at-cdh-53.html
BigData, DevOps, Disruptive Technologies, Cloud and all the fun with . Dienstag, 14. April 2015. Hive on Spark at CDH 5.3. However, since Hive on Spark is not (yet) officially supported by Cloudera some manual steps are required to get Hive on Spark within CDH 5.3 working. Please note that there are four important requirements additionally to the hands-on work:. Spark Gateway nodes needs to be a Hive Gateway node as well. Login to your spark server(s) and copy the running hive-site.xml to spark:. Diesen ...
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Kerberos Archives - Luc de Louw's Blog Luc de Louw's Blog
http://blog.delouw.ch/tag/kerberos
Luc de Louw's Blog. An IT guy is blogging. Posts Tagged ‘Kerberos’. Laquo; Older Entries. Integrate IPA in your Web application i.e. WordPress. Tuesday, April 12th, 2016. Tired of log in to your favorite Web application? Integrate it with IPA, kerberize it! This blog post will guide you trough the kerberization of WordPress running on RHEL7 or Fedora. The magic is done by mod intercept form submit and mod auth gssapi. You have a running IPA or FreeIPA infrastructure. Your Kerberos REALM is EXAMPLE.COM.
Fedora Archives - Luc de Louw's Blog Luc de Louw's Blog
http://blog.delouw.ch/category/linux/fedora
Luc de Louw's Blog. An IT guy is blogging. Archive for the ‘Fedora’ Category. Laquo; Older Entries. Using (Free)IPA ID-Views with LDAP for your legacy servers. Friday, April 15th, 2016. Having pain with user authentication on your old legacy Unix servers? Here comes the solution: ID-Views via LDAP. Your IPA server is called ipa1.example.com. The example client is called ldap-view.example.com. The ID-View is called oldstuff. Example is named jdoe. Cn=myview,cn=views,cn=compat,dc=example,dc=com. Log in to ...
2FA Archives - Luc de Louw's Blog Luc de Louw's Blog
http://blog.delouw.ch/tag/2fa
Luc de Louw's Blog. An IT guy is blogging. Posts Tagged ‘2FA’. Identity Management und 2FA mit (Free)IPA @Chemnitzer Linuxtage 2015. Thursday, April 9th, 2015. My first post in German, publishing the Slide Deck (in German) for my presentation about IPA and 2FA held at Chemnitzer Linux days 2015. Mein erster Post in Deutsch. Hier die Slides von meinem Vortrag an den Chemnitzer Linux Tagen 2015. Das Slide Deck gibt es hier:. 2FA with (Free) IPA. The good, the bad and the ugly. Thursday, April 9th, 2015.
Linux Archives - Luc de Louw's Blog Luc de Louw's Blog
http://blog.delouw.ch/category/linux
Luc de Louw's Blog. An IT guy is blogging. Archive for the ‘Linux’ Category. Laquo; Older Entries. Migrating from CentOS7 to RHEL7. Monday, April 18th, 2016. There are various reasons why to migrate from CentOS to RHEL. Quicker access to bugfixes and new minor releases as well as having a fully commercially supported system. In 2012 I wrote an article about Migrating from CentOS6 to RHEL6. Now its time for an update. Take a full backup of your system before even thinking about trying this procedure!
Android Archives - Luc de Louw's Blog Luc de Louw's Blog
http://blog.delouw.ch/tag/android
Luc de Louw's Blog. An IT guy is blogging. Posts Tagged ‘Android’. 2FA with (Free) IPA. The good, the bad and the ugly. Thursday, April 9th, 2015. Two factor authentication (2FA) is more and more emerging which is good to enhance security. Since the release of IPA4 it comes with 2FA included. 3rd Party applications can use LDAP authentication (Depending on the usecase). Use LDAP authentication (See later on). Use a Jump host with a recent Linux distribution. And use this ticket further on. (i.e f...Wait ...
Identity Management Archives - Luc de Louw's Blog Luc de Louw's Blog
http://blog.delouw.ch/tag/identity-management
Luc de Louw's Blog. An IT guy is blogging. Posts Tagged ‘Identity Management’. Laquo; Older Entries. Using (Free)IPA ID-Views with LDAP for your legacy servers. Friday, April 15th, 2016. Having pain with user authentication on your old legacy Unix servers? Here comes the solution: ID-Views via LDAP. Your IPA server is called ipa1.example.com. The example client is called ldap-view.example.com. The ID-View is called oldstuff. Example is named jdoe. Cn=myview,cn=views,cn=compat,dc=example,dc=com. Log in to...
Storage Archives - Luc de Louw's Blog Luc de Louw's Blog
http://blog.delouw.ch/tag/storage
Luc de Louw's Blog. An IT guy is blogging. Posts Tagged ‘Storage’. Building a virtual CEPH storage cluster. Friday, April 3rd, 2015. I’ve set up five virtual machines, one admin and monitoring server and five OSD servers. Each of them have a disk for the OS of 10GB, the OSD servers additional 3x10GB disks for the storage, in total 90GB for the stroage. Each virtual machine got 1GB RAM assigned, which is barley good enough for some first tests. Check if this is working as needed:. Root@ceph-admin ]# cat /...
Red Hat Archives - Luc de Louw's Blog Luc de Louw's Blog
http://blog.delouw.ch/category/linux/red-hat
Luc de Louw's Blog. An IT guy is blogging. Archive for the ‘Red Hat’ Category. Laquo; Older Entries. Migrating from CentOS7 to RHEL7. Monday, April 18th, 2016. There are various reasons why to migrate from CentOS to RHEL. Quicker access to bugfixes and new minor releases as well as having a fully commercially supported system. In 2012 I wrote an article about Migrating from CentOS6 to RHEL6. Now its time for an update. Take a full backup of your system before even thinking about trying this procedure!
Mobile Internet Archives - Luc de Louw's Blog Luc de Louw's Blog
http://blog.delouw.ch/tag/mobile-internet
Luc de Louw's Blog. An IT guy is blogging. Posts Tagged ‘Mobile Internet’. 2FA with (Free) IPA. The good, the bad and the ugly. Thursday, April 9th, 2015. Two factor authentication (2FA) is more and more emerging which is good to enhance security. Since the release of IPA4 it comes with 2FA included. 3rd Party applications can use LDAP authentication (Depending on the usecase). Use LDAP authentication (See later on). Use a Jump host with a recent Linux distribution. And use this ticket further on. (i...
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Map And Route - Redaktionssystem
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Map Utility
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Hadoop and more
BigData, DevOps, Disruptive Technologies, Cloud and all the fun with . Wednesday, November 22, 2017. Next Internet comes with IoT. The Internet we know is a great space for collaboration, social media and gaming. But when it comes to business or transactions, the power belongs to few big ones. Remember the S3 outage and half of the north-american services where offline? Or the Dny hack which kicked out half of the internet for hours? Friday, June 16, 2017. The Machine and BigData. HP’s „The M...1) https:...
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mapreduce-tutorial.blogspot.com
MapReduce Tutorial
Using Amazon Web Services. Hadoop's power comes from its ability to perform work on a large number of machines simultaneously. What if you want to experiment with Hadoop, but do not have many machines? While operations on a two or four-node cluster are functionally equivalent to those on a 40 or 100-node cluster, processing larger volumes of data will require a larger number of nodes. After the cluster has been started, you can log in to the head node over ssh with the bin/hadoop-ec2 login script, and pe...
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