Alex Rivera | Logout

Questions tagged hadoop

113 questions · page 1 of 3

Sort by: Newest Votes Active
10
votes
2
answers

Can we store relational data in hdfs

hadoop hdfs
asked 2013-08-05T08:43:56.480
79
votes
7
answers

Is there any way to get the column name along with the output while execute any query in Hive?

hadoop hive rdbms
asked 2013-08-01T05:27:13.100
10
votes
4
answers

HDFS Reduced Replication Factor

hadoop replication hdfs
asked 2013-07-23T00:18:46.450
26
votes
5
answers

Unable to start cygwin sshd service

hadoop cygwin sshd
asked 2013-07-19T00:10:05.850
9
votes
3
answers

Relationship between Hadoop and databases

hadoop nosql rdbms
asked 2013-07-03T21:16:31.710
9
votes
1
answers

Group by multiple fields and output tuple

hadoop apache-pig
asked 2013-06-19T08:33:55.947
12
votes
1
answers

Incremental MapReduce implementations (other than CouchDB, preferably)

hadoop mapreduce aggregation
asked 2013-06-18T21:45:46.993
14
votes
3
answers

On what basis mapreduce framework decides whether to launch a combiner or not

hadoop mapreduce combiners
asked 2013-06-18T05:00:50.600
16
votes
1
answers

Type mismatch in value from map: expected org.apache.hadoop.io.NullWritable, recieved org.apache.hadoop.io.Text

java hadoop mapreduce
asked 2013-06-04T20:22:49.943
12
votes
10
answers

Hive INSERT OVERWRITE DIRECTORY command output is not separated by a delimiter. Why?

hadoop hive
asked 2013-05-09T10:37:01.493
29
votes
2
answers

How to get array/bag of elements from Hive group by operator?

sql hadoop hive apache-pig bigdata
asked 2013-05-08T15:03:37.293
10
votes
4
answers

Hadoop Hive slow queries

performance hadoop hive
asked 2013-05-03T12:49:23.880
8
votes
12
answers

Missing Hive Execution Jar: /usr/local/hadoop/hive/lib/hive-exec-*.jar

hadoop jar environment-variables hive
asked 2013-04-14T20:48:19.980
10
votes
1
answers

HDFS access from remote host through Java API, user authentication

java security authentication hadoop hdfs
asked 2013-04-11T05:02:59.627
21
votes
12
answers

HBase standalone failed to connect (fail to create table)

java hadoop nosql hbase apache-zookeeper
asked 2013-04-01T21:56:19.620
8
votes
1
answers

org.apache.maven.plugin.MojoExecutionException: protoc failure

java maven hadoop
asked 2013-04-01T14:08:37.240
15
votes
2
answers

Using Hadoop for Parallel Processing rather than Big Data

hadoop mapreduce
asked 2013-04-01T12:58:06.507
9
votes
2
answers

How Java Hadoop Mapper can send multiple values

java hadoop mapper
asked 2013-03-31T20:25:37.700
17
votes
4
answers

Error: Java heap space

hadoop
asked 2013-03-25T07:43:09.727
8
votes
1
answers

Exploding a row of XML data in Hive

xpath hadoop hive
asked 2013-03-13T00:44:58.273
27
votes
11
answers

Hadoop: start-dfs.sh permission denied

hadoop
asked 2013-03-04T21:52:20.833
14
votes
1
answers

Unable to load native hadoop library for Mac OS X

macos hadoop static-libraries
asked 2013-03-01T12:59:52.513
8
votes
1
answers

HBase: what is NotServingRegionException?

java hadoop nosql database-connection hbase
asked 2013-02-26T18:52:28.193
8
votes
3
answers

how to prevent hadoop job to fail on corrupted input file

hadoop mapreduce cascading
asked 2013-02-17T10:41:33.463
19
votes
5
answers

Merging hdfs files

hadoop hdfs
asked 2013-02-12T11:08:16.930
10
votes
2
answers

100 TB of data on Mongo DB? Possible?

mongodb hadoop vertica bigdata database
asked 2013-01-22T07:48:37.270
31
votes
12
answers

Working With Hadoop: localhost: Error: JAVA_HOME is not set

bash hadoop ubuntu-12.04 java-home
asked 2013-01-14T19:52:27.530
11
votes
4
answers

MapReduce job Output sort order

hadoop mapreduce
asked 2013-01-14T16:24:04.193
125
votes
6
answers

How does Hadoop process records split across block boundaries?

hadoop split mapreduce hdfs
asked 2013-01-12T07:10:57.050
30
votes
3
answers

How to load a text file into a Hive table stored as sequence files

hadoop hive
asked 2012-12-28T03:24:48.283
9
votes
2
answers

How to run Hbase Java example?

hadoop hbase
asked 2012-12-05T17:23:20.157
10
votes
1
answers

file path in hdfs

java hadoop amazon-ec2 mapreduce amazon-emr
asked 2012-11-27T05:12:52.577
11
votes
1
answers

Loading data with Hive, S3, EMR, and Recover Partitions

hadoop amazon-s3 amazon-web-services hive elastic-map-reduce
asked 2012-11-10T03:53:28.740
11
votes
4
answers

The memory consumption of hadoop's namenode?

hadoop memory-consumption
asked 2012-11-09T09:03:37.497
10
votes
1
answers

Pig, how to refer to a field after a join and a group by

hadoop apache-pig
asked 2012-10-30T18:52:48.757
10
votes
2
answers

Running wordcount sample using MRV1 on CDH4.0.1 VM

hadoop cloudera
asked 2012-10-11T02:16:25.913
8
votes
3
answers

Hadoop and map-reduce on multicore machines

hadoop multicore
asked 2012-09-29T23:41:58.300
10
votes
5
answers

Finding directories older than N days in HDFS

hadoop hdfs
asked 2012-09-27T03:55:53.440
8
votes
4
answers

Hadoop use KeyValueTextInputFormat

java hadoop mapreduce word-count
asked 2012-09-22T02:12:42.733
42
votes
5
answers

Cascading examples failed to compile?

java hadoop gradle cascading scalding
asked 2012-09-20T10:53:29.840
32
votes
5
answers

Python read file as stream from HDFS

python hadoop subprocess hdfs
asked 2012-09-18T22:00:22.903
12
votes
2
answers

Hadoop - composite key

hadoop composite-key
asked 2012-09-14T15:01:32.690
14
votes
2
answers

Define tuple datas in the pig script

hadoop apache-pig
asked 2012-09-14T11:14:56.480
16
votes
3
answers

Difference between Hadoop and Nosql

hadoop nosql
asked 2012-09-13T07:31:24.800
8
votes
3
answers

HBASE 0.94.1 compatibility with hadoop

hadoop compatibility hbase
asked 2012-09-09T08:41:20.580
27
votes
2
answers

Hadoop : java.lang.ClassCastException: org.apache.hadoop.io.LongWritable cannot be cast to org.apache.hadoop.io.Text

java hadoop mapreduce
asked 2012-08-02T19:48:04.487
16
votes
7
answers

Hadoop: Cannot use Jps command

java hadoop
asked 2012-07-31T10:27:47.487
8
votes
1
answers

Where are my files(dir) stored when i used the hadoop fs -mkdir?

hadoop hdfs
asked 2012-07-30T03:03:24.803
15
votes
2
answers

how to select data from hive with specific partition?

hadoop hive
asked 2012-07-28T10:17:39.137
8
votes
2
answers

Difference between PIG local and mapreduce mode

hadoop mapreduce hdfs apache-pig
asked 2012-07-26T12:33:38.997
page 1 of 3 Next →