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04-21-2017
12:18 PM
17 Kudos
Expert Contributor
Created on 04-21-2017 12:18 PM - edited 08-17-2019 01:17 PM
With the release of HDP 2.6 comes the Hive ACID Merge feature. This is long sought after feature for people who want to batch update table content in ACID manner. This tutorial will walk you through ...
- Find more articles tagged with:
- Data Processing
- hdp-2.6.0
- Hive
- How-ToTutorial
- merge
08-29-2022
01:30 AM
New Contributor
Created 08-29-2022 01:30 AM
Crossposting from: Stack Overflow (I will respond and give updates on both places) I would like to know if there is also maximum number for items below: Maximum number of databases in a ...
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Apache Hive
11-22-2022
09:01 PM
2 Kudos
Cloudera Employee
Created on 11-22-2022 09:01 PM - edited 01-02-2023 12:49 AM
Datagen lets you generate data on all services provided by Cloudera (HDFS, Hive, HBase, Ozone, Kafka, Kudu, SolR, Local files), in any format (CSV, JSON, Avro, Parquet, ORC). Users can ge...
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Show results in comments (6)
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Hello Risch, Thanks for your article. On the other hand,i can't install the par...
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Hello, Unfortunately, there are currently no parcels for Ubuntu Bionic. But that could be...
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Hello. Parcel is not available in the repository. Does anyone know if it will be restored? https:...
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Hello @gestaobigdata , You should copy/paste this url in Cloudera Manager, that will download the ...
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Hi Frisch, thanks for the help. We managed to download using the internal repository. Success. Wh...
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Hi, Unfortunately it is built with java 11 and will not work on Java 8 so. However, you can ins...
Objective
This tutorial walks you through a NiFI flow that utilizes the
QueryRecord processor and Record Reader/Writer controller services to convert a CVS file into JSON format and then query th...
- Find more articles tagged with:
- csv
- Data Ingestion & Streaming
- How-ToTutorial
- json
- NiFi
- sql
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Show results in comments (5)
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@Meghna_3 as this is an older article, you would have a better chance of receiving a resolutio...
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Hello, Right now user.txt file is with header. As easily records can be picked. If this file is w...
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check further back in the logs for a sql error
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Hi @spdvnz It looks like you ran into a bug that should have been addressed in NiFi 1.5.0 (https:/...
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Hi @Andrew Lim Thanks for the article. I tried to execute this using NiFi 1.5 but I get an error...
06-10-2019
10:38 PM
7 Kudos
Rising Star
Created on 06-10-2019 10:38 PM - edited 08-17-2019 02:15 PM
OBJECTIVE: Provide a quick-start guide for using the Jolt language within a NiFi JoltTransform (JoltTransformJSON or JoltTransformRecord). OVERVIEW: The NiFi JoltTransform uses the powerful Jo...
- Find more articles tagged with:
- Data Ingestion & Streaming
- FAQ
- jolt
- joltransformjson
- jolttransformrecord
- NiFi
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Show results in comments (5)
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Hi, Thanks for the good explanation. What would be the jolt specification for the following...
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Hi @wcbdata Can you explain the usage of '#' in the spec you used above: { &nbs...
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@peter1_biro [ { "operation": "shift", "spec": { "log": { ...
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I really appreciated your work. I bookmarked this page.
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Hello, thanks for perfect examples! What would be the jolt specification for this input/output lo...
02-11-2016
09:36 PM
19 Kudos
Master Guru
Created on 02-11-2016 09:36 PM - edited 08-17-2019 01:14 PM
The purpose of this article is to explain what Process Groups
and Remote Process Groups (RPGs) are and how input and output ports are used to
move FlowFiles between them. Process groups are a valuabl...
- Find more articles tagged with:
- Data Ingestion & Streaming
- hdf
- How-ToTutorial
- NiFi
- process-groups
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Show results in comments (5)
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@ebeb You can name each of your process groups uniquely by name that identifies the ETL pi...
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Thanks @MattWho , actually found a way to filter/search process groups by name using the ...
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Hello, Is it still the best practice to create say 100 process groups for 100 dataflow/etl pipelin...
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Maybe I can simplify my point by seeing RPGs just as functions with inputs and outputs, or servers ...
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@Romain Guay - I a not sure i am following your comments completely. Keep in mind that this Art...
HBase Region Normalizer Region
Normalizer a new feature available in HBase-1.2, can be used to perform
normalization of inefficiently created HBase table regions. It basically
carries out a set of...
- Find more articles tagged with:
- Cloud & Operations
- FAQ
- HBase
- regionsize
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Show results in comments (5)
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Hello @hbasetest You wish to enable Normalizer at Cluster Level irrespective of the Table...
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@hbasetest, as this is an older article, you would have a better chance of receiving a resolut...
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Since normalization is disabled by default while table creation, is there an option where we can en...
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Interesting, so the JIRA removed the "empty regions are not merged away" clause. If so, I'd not ena...
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@Predrag Minovic Please check https://issues.apache.org/jira/browse/HBASE-16059
This article describes various "recipes" on how to accomplish certain tasks with the NiFi processor ExecuteScript, with examples given in Groovy, Jython, Javascript (Nashorn), and JRuby. Recipes in t...
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- Data Ingestion & Streaming
- executescript
- How-ToTutorial
- NiFi
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Show results in comments (9)
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Thank you @mburgess , this was a great help. Could you or someone pls how to get the variable valu...
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@mburgess wrote: This article describes various "recipes" on how to accomplish certain tasks...
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Hi! Thanks for this cookbook ! There is a limit for get 'maxResults' in sesssion.get? In...
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@mburgess this is just awesome! Thank you so much for this. I am trying to call a rest API vi...
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You can call a REST API from Nashorn/Javascript in ExecuteScript, but since Nashorn doesn't have ac...
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Awesome! just tested out... Works like a charm! Thank you so much... just in case if you have any r...
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Extremely usefull examples. However, I'm not sure how to receive one flowfile but transfer several ...
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@Matt Burgess I just wanted to clarify your 2 recipes for getting incoming flowfiles. The first men...
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Thank you! Also just for interest's sake and hope you don't mind answering here, but when will you ...
01-12-2017
08:36 PM
15 Kudos
Super Guru
Created on 01-12-2017 08:36 PM - edited 08-17-2019 05:50 AM
This article describes various "recipes" on how to accomplish certain tasks with the NiFi processor ExecuteScript, with examples given in Groovy, Jython, Javascript (Nashorn), and JRuby. This is Part...
- Find more articles tagged with:
- Data Ingestion & Streaming
- executescript
- How-ToTutorial
- NiFi
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Show results in comments (5)
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@mburgess .. Hope you are doing good. I am facing issue while creating a groovy script for Scr...
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非常赞的ExecuteScript使用系列文章. 在Accessing Controller Services 的groovy例子中 def StringDeserializer = { by...
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Thanks Matt. I've learned a lot from your article. And in this tutorial, I also want to share a l...
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I am trying to use this processor to access HBase client and getting errors (implementing custom in...
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Thank you for this tutorial Matt. There is a copy/paste error in the configuring the Processor you ...
