-
[Apache Hadoop](http://en.wikipedia.org/wiki/Apache_Hadoop) is an infrastructure solution for processing big data. Hadoop is a de facto standard in the industry and it is common to have a hadoop-drive…
-
1. 공통 폴더에 데이터 업로드
2. 공통 폴더에 있는 데이터 hdfs 하위 디렉토리 생성 후 옮기기
sudo mv /media/sf_mywork/reser.csv /home/hadoop/mywork
sudo chmod 777 reser.csv
-
I have successfully installed rhdfs in R over hadoop cluster. But when I invoke hdfs.init(), it complains with:
/usr/lib64/Revo-6.0/R-2.14.2/lib64/R/lib/libExaCore.so.1(_Z21CriticalSignalHandleri+0x1…
-
So it can directly query my data on HDFS !
From the [website](http://impala.io/):
> Apache Impala (incubating) is the open source, native analytic database
> for Apache Hadoop. Impala is shipp…
-
datax设置访问datax用户。
现象:一些公司对hdfs做了封装,root用户对一下文件的权限不够。
报错:com.alibaba.datax.common.exception.DataXException: Code:[HdfsWriter-04], Description:[您配置的文件在写入时出现IO异常.]. - org.apache.hadoop.security.AccessC…
-
Hello everyone:
I am trying to save data sensors in HDFS, I am using CYGNUS.
the cygnus configuration is below:
cygnus-ngsi.sources = http-source
cygnus-ngsi.sinks = hdfs-sink
cygnus-ngsi.…
-
Hi,
this is my configuration:
```yml
hive-server:
container_name: hive-server
image: bde2020/hive:2.3.2-postgresql-metastore
env_file:
- .…
-
Some DELETE queries are failing with a `The transaction didn't commit cleanly` error.
Queries to reproduce the issue:
```SQL
CREATE TABLE u_xinlin.table0601 (id INT, price DOUBLE, datepartition V…
-
I am trying to use azkanban to start job in my company cluster. The cluster is security cluster,surpport kerberos authentication. and the cluster version is CDH5.5.0 .we use mapreduce 2.0
I started …
-
## Background
Currently, most of our tests that require access to files (datasets, mapping tables, etc), rely on paths relative to the current folder. Some of data files are generated on fly. That ef…