Knowledge is Power
Once you sync users in Apache Ranger they will stay in the database even if we sync ranger users from a different source. All those users will clutter up the Ranger user interface. Following two scripts will help in deleting...
Tested on CentOS 6.8 Minimal ISO install with Hue 3.11 Downloads Hue 3.11 Steps Download Hue tarball Install dependencies yum install python-devel libffi-devel gcc openldap-devel openssl-devel libxml2-devel libxslt-devel mysql-devel gmp-devel sqlite-devel openldap-devel gcc-c++ rsync Compile You can either compile...
Source: http://stackoverflow.com/questions/32373460/parquet-vs-orc-vs-orc-with-snappy Datasets Table A – Text File Format- 2.5GB Table B – ORC – 652MB Table C – ORC with Snappy – 802MB Table D – Parquet – 1.9 GB Parquet was worst as far as compression for my table...
less packs more power than “more” or “tail” commands tail -f like functionality Usage: $ less +F file.log If only $ less file.log is invoked pressing F will switch back to mode similar to tail -f Enable row number -NR inside less enables...
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References http://hortonworks.com/hadoop-tutorial/manage-security-policy-hive-hbase-knox-ranger/ http://hortonworks.com/blog/best-practices-in-hdfs-authorization-with-apache-ranger/ http://hortonworks.com/blog/best-practices-for-hive-authorization-using-apache-ranger-in-hdp-2-2/ http://hortonworks.com/blog/author/balajiganesan03/ http://www.slideshare.net/hortonworks/ops-workshop-asrunon20150112 Related posts: Deleting users from Ranger database (mysql) Apache Ranger tips and tid bits Remotely debug hadoop Good looking .hiverc file
Source: http://stackoverflow.com/questions/11177954/how-do-i-completely-uninstall-node-js-and-reinstall-from-beginning-mac-os-x Removing npm from mac sudo rm -rf /usr/local/{lib/node{,/.npm,_modules},bin,share/man}/{npm*,node*,man1/node*} which is the equivalent of (same as above)… sudo rm -rf /usr/local/bin/npm /usr/local/share/man/man1/node* /usr/local/lib/dtrace/node.d ~/.npm ~/.node-gyp /opt/local/bin/node opt/local/include/node /opt/local/lib/node_modules or (same as above) broken down… To completely uninstall node +...
So you done everything right and can’t connect Excel to Hive using ODBC driver on your macOS? Let’s see what is going on. Are you running El Capitan on Sierra? Well I was running Sierra and tried connecting before while...
Pre-requisites In order to connect SQuirrel SQL client we need the following prerequisites, Client – http://squirrel-sql.sourceforge.net/ Hive connection JARs (found in lib directories) Hive JDBC JAR – hive-jdbc-1.2.1-standalone.jar Hadoop common JAR (for ) – hadoop-common-2.7.2.jar Running HiveServer2 instance For connections use the following...
Stuck with creating Hive tables on compressed files? Well the documentation on apache.org suggests that Hive natively supports compressed file – https://cwiki.apache.org/confluence/display/Hive/CompressedStorage Lets try that out. Store a snappy compressed file on HDFS. … thinking, I do not have such file… Wait!...
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