How to configure hosts file for Hadoop ecosystem
The question may seem pretty obvious, but I have faced it many times, due to bad configuration of hosts file on a hadoop cluster. Can anyone describe how to setup hosts file and other related network configuration for hadoop and similar environment usage (like cloudera). Specially when i have to add both the hostname and FQDN. Update
hadoop - hosted BigQuery instance - Stack Overflow
2012年10月29日 · What are big query alternatives? (cloud as well as hosted) Apache Drill is an implementation of the above mentioned Dremel, but has just started and might take some time to materialize. Cloudera has recently announced Imapala for real-time queries on Hadoop. Check the blog for more details.
hadoop - How to pass configuration file that hosted in HDFS to …
2019年5月7日 · Because, this solution uses hadoop configuration files. My code have not "hadoop conf" files. Also, I want to pass any "spark conf" to application like appName etc. Thus I can't use spark.sparkContext.hadoopConfiguration. I don't know how can I do this. –
Free Hadoop Cluster for Experiments - Stack Overflow
However, you'll probably have to setup everything by yourself, since I don't believe that there is a public image with hadoop. UPDATE (for future reference): It seems that there is now an easy wizard-like way to set up a hadoop cluster, too.
hadoop - How to delete files from the HDFS? - Stack Overflow
2015年12月8日 · Official documentation of Hadoop tells us the following: The deletion of a file causes the blocks associated with the file to be freed. Note that there could be an appreciable time delay between the time a file is deleted by a user and the time of the corresponding increase in free space in HDFS.
Execute a Hadoop Job in remote server and get its results from …
2015年9月13日 · I have a Hadoop job packaged in a jar file that I can execute in a server using command line and store the results in the hdfs of the server using the command line. Now, I need to create a Web Service in Python (Tornado) that must to execute the Hadoop Job and get the results to present them to the user. The Web Service is hosted in other server.
SQL Server Connected to Hadoop - Thoughts and Challenges of ...
2014年10月27日 · They both serve the purpose of being a hosted Hadoop service that has almost no management overhead. The Hortonworks Data Platform for Windows contains the open source changes that Hortonworks and Microsoft have collaborated on to make Hadoop run well on Windows. HDP isn't HDInsight.
hadoop - How to copy data from one HDFS to another HDFS
2019年5月13日 · distcp is used for copying data to and from the hadoop filesystems in parallel. It is similar to the generic hadoop fs -cp command. In the background process, distcp is implemented as a MapReduce job where mappers are only implemented for copying in parallel across the cluster. Usage: copy one file to another % hadoop distcp file1 file2
hadoop - how to copy from hive table to hive table across clusters ...
2013年10月14日 · I have two hive tables with the same columns and data types, etc. and I would like to copy the data from one table to another table in a different cluster. does hive or sqoop provide a simple way ...
hadoop - How to order the ngrams in Google's database (or the …
2012年9月17日 · I would recommend using Pig!. Pig makes things like this very easy and straight-forward. Here's a sample pig script that does pretty much what you need: