accumulo | Apache Accumulo is a sorted , distributed key
kandi X-RAY | accumulo Summary
kandi X-RAY | accumulo Summary
Apache Accumulo is a sorted, distributed key/value store that provides robust, scalable data storage and retrieval. With Apache Accumulo, users can store and manage large data sets across a cluster. Accumulo uses Apache Hadoop's HDFS to store its data and Apache Zookeeper for consensus. Download the latest version of Apache Accumulo on the project website.
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Top functions reviewed by kandi - BETA
- Execute a mutation operation
- Decodes a CompactionConfig
- Reads the options map from the given data input
- Decode a PluginConfigData
- Start the manager
- Start the replication coordinator
- Blocks until multiple times are available
- Balance the table
- Balance the current table
- Starts the scheduler
- Returns a string representation of this manager monitor
- Sets the value of the specified field
- Imports a bulk import
- Converts a list of tablets to compact tablets
- Get the options for this table
- Main executor
- Returns a string representation of the ActiveCompaction
- Generates a JSON representation of the replication table
- Entry point for testing
- Compares two ActiveScan objects
- Validates external compactions
- Returns a string describing the active scan
- Main entry point
- Executes the Acculo command
- Fast skip
- Starts the loop
accumulo Key Features
accumulo Examples and Code Snippets
Community Discussions
Trending Discussions on accumulo
QUESTION
I’m trying to integrate spark(3.1.1) and hive local metastore (3.1.2) to use spark-sql.
i configured the spark-defaults.conf according to https://spark.apache.org/docs/latest/sql-data-sources-hive-tables.html and hive jar files exists in correct path.
but an exception occurred when execute 'spark.sql("show tables").show' like below.
any mistakes, hints, or corrections would be appreciated.
...ANSWER
Answered 2021-May-21 at 07:25Seems your hive conf is missing. To connect to hive metastore you need to copy the hive-site.xml file into spark/conf directory.
Try
QUESTION
have a problem with geomesa failed on adding indexes, maybe someones know where problem is?
...ANSWER
Answered 2021-Jan-28 at 11:31hadoop 3.1 not support this feature, need 3.2 update
QUESTION
I have a problem with sqoop if you help me I really appreciate your help.
I write a sqoop command from my local computer to export data from hdfs to oracle data database. I use hadoop-3.3.0 and sqoop 1.4.7 in my local computer.
and the error is :
Error: Could not find or load main class org.apache.hadoop.mapreduce.v2.app.MRAppMaster
sqoop command:
...ANSWER
Answered 2020-Aug-31 at 16:07You mention you have a cluster installed with Cloudera, but it is not clear where Sqoop is running or where you got those XML files.
If you have a fully installed Cloudera Cluster, Sqoop should already be installed and configured there for you to run without much issues (you might need extra JDBC drivers, but that should be it)
Otherwise, if you are trying to setup Sqoop (and Hadoop) externally, you'll want to grab a copy of the $HADOOP_HOME/conf folder from a worker node in the Hadoop cluster to make sure all the client configurations are the same.
QUESTION
I'm working on a project where I'm needing to execute some linux commands (sqoop command) in my Scala application. See sample command I tried executing with MySql on my VM.
...ANSWER
Answered 2020-Jun-26 at 07:20It looks like sqoop doesn't recognize *, from, and categories as individual arguments. The reason it works when invoked from the command line is that the shell interprets the quote marks and presents them as a single select * from categories argument. In other words, the shell does some pre-processing before handing everything off to the sqoop program.
The .! method (i.e. the Scala ProcessBuilder) launches processes directly, which means that the command elements are not passed to a shell for pre-processing. There are two ways to get around this problem.
- You can invoke the shell directly and pass the command-line to it as a single argument, or
- you can do most of the obvious pre-processing yourself.
Here's an example of the 2nd option.
QUESTION
I am doing
$ ./launcher run
Below Error message is get generate
...ANSWER
Answered 2020-Jun-22 at 04:30You need to add "datasource.driver" to your 'mysql.properties' file.
QUESTION
I am trying to export a hive table to mysql database whose data is tab delimited as stored in HDFS but the job is failing every time after mapper phase.
I have referred to many link and resources and cross checked my export command like export-directory, table name and other factors. Also the schema of both the tables are same but still didn't have any idea why the jobs are failing every time.
Schema in hive :
...ANSWER
Answered 2020-Apr-24 at 13:23It can be failing for many reasons, please follow this link to track the log to see why the process is failing
QUESTION
I am using sqoop to import data from oracle 11g, as i do not have the permission to put the ojdbc jar in sqoop's lib on cluster i am explicitly providing the jar using -libjars but it is throwing exception.The code I have used is :
...ANSWER
Answered 2017-Apr-05 at 13:46The -libjars argument is not typically used with Sqoop, but is added as part of Hadoop’s internal argument-parsing system.
Append the path of Jar file to the $HADOOP_CLASSPATH variable.
QUESTION
Attempting to add a client node to cluster via Ambari (v2.7.3.0) (HDP 3.1.0.0-78) and seeing odd error
...ANSWER
Answered 2019-Nov-26 at 21:18After just giving in and trying to manually create the hive user myself, I see
QUESTION
sqoop import --connect "jdbc:sqlserver://PHCHBS-SD360117.eu.novartis.net:1533/NVS_DATAMART_IT" \
--username SYS_SIE \
--password SIEv \
--driver com.microsoft.sqlserver.jdbc.SQLServerDriver \
--query 'SELECT GEO_NAME,SALES_AREA_CODE,SALES_FORCE_CODE,WEIGHT,SALES_AREA_NAME,REP_ID,REP_NAME,REP_ASGMNT_DATE,DISTRICT_ID,DISTRICT_NAME,DM_ID,DM_NAME,DM_ASGMNT_DATE,REGION_ID, REGION_NAME,RM_ID,RM_NAME, RM_ASGMNT_DATE,EXTRACTION_DATE,CYCLE FROM NVS_DATAMART_IT.dbo.it_territory_hierarchy_bsp WHERE $CONDITIONS' \
-m 4 \
--hive-import \
--hive-database ph_com_r_ita_sales_integrator \
--create-hive-table it_dim_territory_hierarchy_bsp \
--target-dir "hdfs://sdata/ph/com/r/ph_com_r_ita_sales_integrator/abc"
ANSWER
Answered 2019-Sep-17 at 11:20--hive-database ph_com_r_ita_sales_integrator could be the problem. I haven't found this argument in Sqoop documentation.
try using:
QUESTION
I installed Cloudera QuickStart VM 5.13. I'm using the Sqoop. I tried execute the next command:
...ANSWER
Answered 2019-Sep-11 at 14:14Install the JDK 1.7 (or needed) and set system variables (JAVA_HOME, ORACLE_HOME, ORACLE_SID) and copy the jar (/var/lib/sqoop/ojdbc6.jar). For example:
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View the Javadocs to learn the Accumulo API
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