I've successfully installed Ambari server/agent 2.7.5 on my Centos 7 machine. Now i am facing an issue while installing a cluster in the install wizard at the "Select version" step. I have no versions showing in my dropdown. What can…
Description Within PySpark, even though a DataFrame can be saved to S3/S3A (not AWS, but a S3-compliant storage), its data are saved unencrypted despite that setting fs.s3a.encryption.algorithm (SSE-C) and fs.s3a.encryption.key are used. Reproducibility Generate the key as followed: encKey=$(openssl rand…
how do we copy files from Hadoop to abfs (azure blob file system) I want to copy from Hadoop fs to abfs file system but it throws an error this is the command I ran hdfs dfs -ls abfs://.... ls:…
My goal is to read file from hdfs in airflow and do further manipulations. After researching, I found that url I need to use is as follows: df = pd.read_parquet('http://localhost:9870/webhdfs/v1/hadoop_files/sample_2022_01.parquet?op=OPEN'), where localhost/172.20.80.1/computer-name.mshome.net can be interchangeably used, 9870 - namenode port,…
I am trying to stream and retrieve Twitter data using Flume but unable to do so because of some sort of error. When I try executing it using the command: flume-ng agent -n TwitterAgent -c conf -f /home/hadoop/Flume/conf/twitter.conf I get…
I am following this guide for installing HUE on HDP 3.1.4 , centos 7 https://gethue.com/configure-ambari-hdp-with-hue/ at building : sudo make apps ,it fails with : npm ERR! Linux 3.10.0-1127.13.1.el7.x86_64 npm ERR! argv "/usr/bin/node" "/usr/bin/npm" "run" "webpack" npm ERR! node v6.17.1…
I am following the guide : https://cwiki.apache.org/confluence/display/AMBARI/Installation+Guide+for+Ambari+2.7.5 and with this info Ambari 2.7.5 installation failure on CentOS 7 , I managed to overcome the ambari-admin error, but now I am facing a new one : [INFO] Ambari Main 2.7.5.0.0 ..............................…
Environment: Python : 3.6.8 OS: CentOS 7 Spark: 2.4.5 Hadoop:2.7.7 Hardware: 3 computers (8 VCores available for each computer on hadoop cluster) I constructed a simple python application. And my code is: import numpy as np from pyspark.sql import SparkSession…
Can I use Bigdata in ecommerce (Magento)? we are having a custom website that extracts data from DB and displays it as report. But due to large data, timeout is happening…What can i do?
In apache kylin distributions i can only see which are compatible with hbase1.x. My hbase version is 2.0 if anyone tested kylin with hbase 2.x please put your comment. Thanks & Regards Rahul