hbase Questions
7
Solved
Does anybody know how to scan records based on some scan filter i.e.:
column:something = "somevalue"
Something like this, but from HBase shell?
9
Solved
I have created the three security groups for the testing purpose on amazon aws. Now I want to delete them. But, every time I try to delete them it gives me the error:
Group XXXXXXX:testcluster is u...
Vespertilionine asked 17/8, 2013 at 12:35
6
Solved
I installed Hadoop, Hive, HBase, Sqoop and added them to the PATH.
When I try to execute sqoop command, I'm getting this error:
Error: Could not find or load main class org.apache.sqoop.Sqoop
D...
6
Solved
3
I have an HBase table containing 8G of data.
When I use a partial key scan on that table to retrieve a value for a given key I get almost constant time value retrieval.
When I use a Get, the time...
Conduit asked 27/1, 2013 at 8:10
4
Solved
I'm trying to start an hbase master from ambari.
It can't start it because it can't connect to zookeper server.
Ambari marks all the zookeper servers (3 nodes) as running.
The application serve...
Quaternion asked 1/4, 2016 at 16:44
6
I am using Hadoop 1.0.3 and HBase 0.94.22. I am trying to run a mapper program to read values from a Hbase table and output them to a file. I am getting the following error:
Exception in thread "...
6
I am trying to write a program to connect to HBase. However when I execute following command
HBaseConfiguration.create(); I get following error: .
"hbase-default.xml file seems to be for and old ...
7
Solved
I am trying to setup the multinode cluster of Hbase. When i do the jps on slave i get
5780 Jps
5558 HQuorumPeer
5684 HRegionServer
1963 DataNode
2093 TaskTracker
similarly on master i get
4254...
3
Solved
I installed hbase from cloudera 5.3.3 distribution and as I run the hbase everything seems to be working fine...
When I try assign hbase.master.port via /etc/hbase/conf/hbase-site.xml it does not ...
4
Hi All i am getting below error message while running phoenix count query on a large table.
0: jdbc:phoenix:hadoopm1:2181> select Count(*) from PJM_DATASET;
+------------+
| COUNT(1) |
+------...
Bromley asked 9/1, 2015 at 8:46
2
I install a hadoop multi-node cluster on top of tow ubuntu virtual machines.
In next step I trying to installing HBase on this virtual cluster. But when I running HBase with start-hbase.sh, HMaste...
Yongyoni asked 9/2, 2019 at 16:33
1
As I can see here, HBase maintains a state for each region and persists the state in hbase:meta.
I am not able to get what is the command to get state of a region of a table.
By running following...
Tuscany asked 4/2, 2018 at 11:29
4
Solved
Using Hbase API (Get/Put) or HBQL API, is it possible to retrieve timestamp of a particular column?
9
Solved
I want to empty a table in hbase... eg: user. Is there any command or function to empty the table without deleting it...
My table structure is :
$mutations = array(
new Mutation( array(
'colu...
3
Solved
I have the following as the command line to start a spark streaming job.
spark-submit --class com.biz.test \
--packages \
org.apache.spark:spark-streaming-kafka_2.10:1.3.0 \
org.apache.hbase:...
Hiltonhilum asked 25/11, 2015 at 23:10
17
Solved
What are the benefits of using either Hadoop or HBase or Hive ?
From my understanding, HBase avoids using map-reduce and has a column oriented storage on top of HDFS. Hive is a sql-like interface ...
Quicksand asked 17/12, 2012 at 9:33
5
Solved
I am facing a weird problem. I was accessing my HBase tables through an API. Midway during execution I got a RegionNotServing for my table 'x'. But My HRegionServers were working fine.
When I tri...
Gnosticize asked 28/1, 2013 at 7:58
0
I want to optimize my usage of HBase for faster writes. I have a task which reads from a Kafka topic then write to HBase based on that. Since Kafka will have a log of everything to be written, it's...
Vaasa asked 24/6, 2021 at 14:47
3
I have a small sample code in which I try to establish a connection to a remote HBase entity. The code runs on a windows machine without HBase installed and I try to connect to a remote Ubuntu Serv...
4
Solved
Use phoenix sqlline to connect the hbase. On SecureCRT terminal I can only see three columns of table which has more than 10 columns. I would like to display all columns of the table to test if dat...
Hypophosphite asked 8/9, 2015 at 8:37
6
Solved
I'm new to Hadoop. I know that the HCatalog is a table and storage management layer for Hadoop. But how exactly it works and how to use it. Please give some simple example.
5
Solved
What is the fastest way to check if Hbase table exists? Looking at this api :
http://hbase.apache.org/devapidocs/org/apache/hadoop/hbase/client/HBaseAdmin.html
Which of these is the fastest :
ta...
3
Solved
I am trying to use jersey Rest-API to fetch the records from HBASE table through java-Spark program then I am getting the below mentioned error however when I am accessing the HBase-table through s...
Ammonate asked 20/1, 2016 at 13:25
1
Solved
What is the reason for having column families? Example:
Scenario 1 :
Table Row-Key ColumnFamily1 ColumnFamily2 ColumnFamily3
Scenario 2 :
Table1 Row-Key Column1...ColumnN
Table2 Row-Key Column1......
Moonier asked 21/11, 2020 at 15:5
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