http://git-wip-us.apache.org/repos/asf/incubator-griffin-site/blob/89e378e5/db.json
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 Mailing Lists\n\[email protected] \n\n[To subscribe dev 
list](mailto:[email protected])\n\n[To unsubscribe dev 
list](mailto:[email protected])\n\n## 
Jira\n\n[https://issues.apache.org/jira/browse/GRIFFIN](https://issues.apache.org/jira/browse/GRIFFIN)\n\n##
 
Wiki\n\n[https://cwiki.apache.org/confluence/display/GRIFFIN/Griffin](https://cwiki.apache.org/confl
 uence/display/GRIFFIN/Griffin)\n\n## Contributing\n\n- Create jira ticket to 
specify what you want to do\n  ```bash\n  create ticket here.\n  
https://issues.apache.org/jira/browse/GRIFFIN\n  ```\n- Create one new branch 
for this task\n  ```bash\n  git clone 
https://github.com/apache/incubator-griffin.git\n  git checkout -b 
yourNewFeatrueBranch\n  ```\n- Commit and send pr to us\n\t```\n\t###please 
associate related JIRA TICK in your comments\n\tgit commit -am \"For task 
GRIFFIN-10 , blabla...\"\n\t```\n\n- GRIFFIN IPMC will review and accept your 
pr as 
contributing.\n\n\n\n\n\n\n","source":"_posts/community.md","raw":"---\ntitle: 
Community\ndate: 2017-03-04 13:00:45\ntags:\n---\n\n## Mailing 
Lists\n\[email protected] \n\n[To subscribe dev 
list](mailto:[email protected])\n\n[To unsubscribe dev 
list](mailto:[email protected])\n\n## 
Jira\n\n[https://issues.apache.org/jira/browse/GRIFFIN](https://issues.apache.org/jira/
 browse/GRIFFIN)\n\n## 
Wiki\n\n[https://cwiki.apache.org/confluence/display/GRIFFIN/Griffin](https://cwiki.apache.org/confluence/display/GRIFFIN/Griffin)\n\n##
 Contributing\n\n- Create jira ticket to specify what you want to do\n  
```bash\n  create ticket here.\n  
https://issues.apache.org/jira/browse/GRIFFIN\n  ```\n- Create one new branch 
for this task\n  ```bash\n  git clone 
https://github.com/apache/incubator-griffin.git\n  git checkout -b 
yourNewFeatrueBranch\n  ```\n- Commit and send pr to us\n\t```\n\t###please 
associate related JIRA TICK in your comments\n\tgit commit -am \"For task 
GRIFFIN-10 , blabla...\"\n\t```\n\n- GRIFFIN IPMC will review and accept your 
pr as 
contributing.\n\n\n\n\n\n\n","slug":"community","published":1,"updated":"2017-04-07T03:10:34.000Z","comments":1,"layout":"post","photos":[],"link":"","_id":"cj1rgsv920000nxpoiivxujcm","content":"<h2
 id=\"Mailing-Lists\"><a href=\"#Mailing-Lists\" class=\"headerlink\" 
title=\"Mailing Lists\"></a>Mailing Lists</h2><p
 >[email protected] </p>\n<p><a 
 >href=\"mailto:[email protected]\"; target=\"_blank\" 
 >rel=\"external\">To subscribe dev list</a></p>\n<p><a 
 >href=\"mailto:[email protected]\"; 
 >target=\"_blank\" rel=\"external\">To unsubscribe dev list</a></p>\n<h2 
 >id=\"Jira\"><a href=\"#Jira\" class=\"headerlink\" 
 >title=\"Jira\"></a>Jira</h2><p><a 
 >href=\"https://issues.apache.org/jira/browse/GRIFFIN\"; target=\"_blank\" 
 >rel=\"external\">https://issues.apache.org/jira/browse/GRIFFIN</a></p>\n<h2 
 >id=\"Wiki\"><a href=\"#Wiki\" class=\"headerlink\" 
 >title=\"Wiki\"></a>Wiki</h2><p><a 
 >href=\"https://cwiki.apache.org/confluence/display/GRIFFIN/Griffin\"; 
 >target=\"_blank\" 
 >rel=\"external\">https://cwiki.apache.org/confluence/display/GRIFFIN/Griffin</a></p>\n<h2
 > id=\"Contributing\"><a href=\"#Contributing\" class=\"headerlink\" 
 >title=\"Contributing\"></a>Contributing</h2><ul>\n<li><p>Create jira ticket 
 >to specify what you want to do</p>\n<figure clas
 s=\"highlight bash\"><table><tr><td class=\"gutter\"><pre><div 
class=\"line\">1</div><div class=\"line\">2</div></pre></td><td 
class=\"code\"><pre><div class=\"line\">create ticket here.</div><div 
class=\"line\">https://issues.apache.org/jira/browse/GRIFFIN</div></pre></td></tr></table></figure>\n</li>\n<li><p>Create
 one new branch for this task</p>\n<figure class=\"highlight 
bash\"><table><tr><td class=\"gutter\"><pre><div class=\"line\">1</div><div 
class=\"line\">2</div></pre></td><td class=\"code\"><pre><div 
class=\"line\">git <span class=\"built_in\">clone</span> 
https://github.com/apache/incubator-griffin.git</div><div class=\"line\">git 
checkout -b 
yourNewFeatrueBranch</div></pre></td></tr></table></figure>\n</li>\n<li><p>Commit
 and send pr to us</p>\n  <figure class=\"highlight plain\"><table><tr><td 
class=\"gutter\"><pre><div class=\"line\">1</div><div 
class=\"line\">2</div></pre></td><td class=\"code\"><pre><div 
class=\"line\">###please associate related JIRA TICK in your c
 omments</div><div class=\"line\">git commit -am &quot;For task GRIFFIN-10 , 
blabla...&quot;</div></pre></td></tr></table></figure>\n</li>\n<li><p>GRIFFIN 
IPMC will review and accept your pr as 
contributing.</p>\n</li>\n</ul>\n","excerpt":"","more":"<h2 
id=\"Mailing-Lists\"><a href=\"#Mailing-Lists\" class=\"headerlink\" 
title=\"Mailing Lists\"></a>Mailing 
Lists</h2><p>[email protected] </p>\n<p><a 
href=\"mailto:[email protected]\";>To subscribe dev 
list</a></p>\n<p><a 
href=\"mailto:[email protected]\";>To unsubscribe dev 
list</a></p>\n<h2 id=\"Jira\"><a href=\"#Jira\" class=\"headerlink\" 
title=\"Jira\"></a>Jira</h2><p><a 
href=\"https://issues.apache.org/jira/browse/GRIFFIN\";>https://issues.apache.org/jira/browse/GRIFFIN</a></p>\n<h2
 id=\"Wiki\"><a href=\"#Wiki\" class=\"headerlink\" 
title=\"Wiki\"></a>Wiki</h2><p><a 
href=\"https://cwiki.apache.org/confluence/display/GRIFFIN/Griffin\";>https://cwiki.apache.org/confluenc
 e/display/GRIFFIN/Griffin</a></p>\n<h2 id=\"Contributing\"><a 
href=\"#Contributing\" class=\"headerlink\" 
title=\"Contributing\"></a>Contributing</h2><ul>\n<li><p>Create jira ticket to 
specify what you want to do</p>\n<figure class=\"highlight 
bash\"><table><tr><td class=\"gutter\"><pre><div class=\"line\">1</div><div 
class=\"line\">2</div></pre></td><td class=\"code\"><pre><div 
class=\"line\">create ticket here.</div><div 
class=\"line\">https://issues.apache.org/jira/browse/GRIFFIN</div></pre></td></tr></table></figure>\n</li>\n<li><p>Create
 one new branch for this task</p>\n<figure class=\"highlight 
bash\"><table><tr><td class=\"gutter\"><pre><div class=\"line\">1</div><div 
class=\"line\">2</div></pre></td><td class=\"code\"><pre><div 
class=\"line\">git <span class=\"built_in\">clone</span> 
https://github.com/apache/incubator-griffin.git</div><div class=\"line\">git 
checkout -b 
yourNewFeatrueBranch</div></pre></td></tr></table></figure>\n</li>\n<li><p>Commit
 and send pr to us</p>\
 n  <figure class=\"highlight plain\"><table><tr><td class=\"gutter\"><pre><div 
class=\"line\">1</div><div class=\"line\">2</div></pre></td><td 
class=\"code\"><pre><div class=\"line\">###please associate related JIRA TICK 
in your comments</div><div class=\"line\">git commit -am &quot;For task 
GRIFFIN-10 , 
blabla...&quot;</div></pre></td></tr></table></figure>\n</li>\n<li><p>GRIFFIN 
IPMC will review and accept your pr as 
contributing.</p>\n</li>\n</ul>\n"},{"title":"Apache 
Griffin","date":"2017-03-30T02:49:47.000Z","_content":"\n## Abstract\nApache 
Griffin is a Data Quality Service platform built on Apache Hadoop and Apache 
Spark. It provides a framework process for defining data quality model, 
executing data quality measurement, automating data profiling and validation, 
as well as a unified data quality visualization across multiple data systems.  
It tries to address the data quality challenges in big data and streaming 
context.\n\n\n## Overview of Apache Griffin  \nAt eBay, when peo
 ple use big data (Hadoop or other streaming systems), measurement of data 
quality is a big challenge. Different teams have built customized tools to 
detect and analyze data quality issues within their own domains. As a platform 
organization, we think of taking a platform approach to commonly occurring 
patterns. As such, we are building a platform to provide shared Infrastructure 
and generic features to solve common data quality pain points. This would 
enable us to build trusted data assets.\n\nCurrently it is very difficult and 
costly to do data quality validation when we have large volumes of related data 
flowing across multi-platforms (streaming and batch). Take eBay's Real-time 
Personalization Platform as a sample; Everyday we have to validate the data 
quality for ~600M records. Data quality often becomes one big challenge in this 
complex environment and massive scale.\n\nWe detect the following at 
eBay:\n\n1. Lack of an end-to-end, unified view of data quality from multiple 
data
  sources to target applications that takes into account the lineage of the 
data. This results in a long time to identify and fix data quality issues.\n2. 
Lack of a system to measure data quality in streaming mode through 
self-service. The need is for a system where datasets can be registered, data 
quality models can be defined, data quality can be visualized and monitored 
using a simple tool and teams alerted when an issue is detected.\n3. Lack of a 
Shared platform and API Service. Every team should not have to apply and manage 
own hardware and software infrastructure to solve this common problem.\n\nWith 
these in mind, we decided to build Apache Griffin - A data quality service that 
aims to solve the above short-comings.\n\nApache Griffin includes:\n\n**Data 
Quality Model Engine**: Apache Griffin is model driven solution, user can 
choose various data quality dimension to execute his/her data quality 
validation based on selected target data-set or source data-set ( as the golden 
ref
 erence data). It has corresponding library supporting it in back-end for the 
following measurement:\n\n - Accuracy - Does data reflect the real-world 
objects or a verifiable source\n - Completeness - Is all necessary data 
present\n - Validity -  Are all data values within the data domains specified 
by the business\n - Timeliness - Is the data available at the time needed\n - 
Anomaly detection -  Pre-built algorithm functions for the identification of 
items, events or observations which do not conform to an expected pattern or 
other items in a dataset\n - Data Profiling - Apply statistical analysis and 
assessment of data values within a dataset for consistency, uniqueness and 
logic.\n\n**Data Collection Layer**:\n\nWe support two kinds of data sources, 
batch data and real time data.\n\nFor batch mode, we can collect data source 
from  our Hadoop platform by various data connectors.\n\nFor real time mode, we 
can connect with messaging system like Kafka to near real time analysis.\n\n**
 Data Process and Storage Layer**:\n\nFor batch analysis, our data quality 
model will compute data quality metrics in our spark cluster based on data 
source in hadoop.\n\nFor near real time analysis, we consume data from 
messaging system, then our data quality model will compute our real time data 
quality metrics in our spark cluster. for data storage, we use time series 
database in our back end to fulfill front end request.\n\n**Apache Griffin 
Service**:\n\nWe have RESTful web services to accomplish all the 
functionalities of Apache Griffin, such as register data-set, create data 
quality model, publish metrics, retrieve metrics, add subscription, etc. So, 
the developers can develop their own user interface based on these web 
serivces.\n\n## Main business process\nHere's the business process 
diagram\n\n![](/images/Business_Process.png)\n\n## Rationale\nThe challenge we 
face at eBay is that our data volume is becoming bigger and bigger, systems 
process become more complex, while we do
  not have a unified data quality solution to ensure the trusted data sets 
which provide confidences on data quality to our data consumers.  The key 
challenges on data quality includes:\n\n1. Existing commercial data quality 
solution cannot address data quality lineage among systems, cannot scale out to 
support fast growing data at eBay\n2. Existing eBay's domain specific tools 
take a long time to identify and fix poor data quality when data flowed through 
multiple systems\n3. Business logic becomes complex, requires data quality 
system much flexible.\n4. Some data quality issues do have business impact on 
user experiences, revenue, efficiency & compliance.\n5. Communication overhead 
of data quality metrics, typically in a big organization, which involve 
different teams.\n\nThe idea of  Apache Apache Griffin is to provide Data 
Quality validation as a Service, to allow data engineers and data consumers to 
have:\n\n - Near real-time understanding of the data quality health of your data
  pipelines with end-to-end monitoring, all in one place.\n - Profiling, 
detecting and correlating issues and providing recommendations that drive rapid 
and focused troubleshooting\n - A centralized data quality model management 
system including rule, metadata, scheduler etc.  \n - Native code generation to 
run everywhere, including Hadoop, Kafka, Spark, etc.\n - One set of tools to 
build data quality pipelines across all eBay data platforms.\n\n\n## 
Disclaimer\n\nApache Griffin is an effort undergoing incubation at The Apache 
Software Foundation (ASF), sponsored by the Apache Incubator. Incubation is 
required of all newly accepted projects until a further review indicates that 
the infrastructure, communications, and decision making process have stabilized 
in a manner consistent with other successful ASF projects. While incubation 
status is not necessarily a reflection of the completeness or stability of the 
code, it does indicate that the project has yet to be fully endorsed by the 
 ASF.\n\n\n","source":"_posts/home.md","raw":"---\ntitle: Apache Griffin\ndate: 
2017-03-30 10:49:47\n---\n\n## Abstract\nApache Griffin is a Data Quality 
Service platform built on Apache Hadoop and Apache Spark. It provides a 
framework process for defining data quality model, executing data quality 
measurement, automating data profiling and validation, as well as a unified 
data quality visualization across multiple data systems.  It tries to address 
the data quality challenges in big data and streaming context.\n\n\n## Overview 
of Apache Griffin  \nAt eBay, when people use big data (Hadoop or other 
streaming systems), measurement of data quality is a big challenge. Different 
teams have built customized tools to detect and analyze data quality issues 
within their own domains. As a platform organization, we think of taking a 
platform approach to commonly occurring patterns. As such, we are building a 
platform to provide shared Infrastructure and generic features to solve common 
data qu
 ality pain points. This would enable us to build trusted data 
assets.\n\nCurrently it is very difficult and costly to do data quality 
validation when we have large volumes of related data flowing across 
multi-platforms (streaming and batch). Take eBay's Real-time Personalization 
Platform as a sample; Everyday we have to validate the data quality for ~600M 
records. Data quality often becomes one big challenge in this complex 
environment and massive scale.\n\nWe detect the following at eBay:\n\n1. Lack 
of an end-to-end, unified view of data quality from multiple data sources to 
target applications that takes into account the lineage of the data. This 
results in a long time to identify and fix data quality issues.\n2. Lack of a 
system to measure data quality in streaming mode through self-service. The need 
is for a system where datasets can be registered, data quality models can be 
defined, data quality can be visualized and monitored using a simple tool and 
teams alerted when an issue
  is detected.\n3. Lack of a Shared platform and API Service. Every team should 
not have to apply and manage own hardware and software infrastructure to solve 
this common problem.\n\nWith these in mind, we decided to build Apache Griffin 
- A data quality service that aims to solve the above short-comings.\n\nApache 
Griffin includes:\n\n**Data Quality Model Engine**: Apache Griffin is model 
driven solution, user can choose various data quality dimension to execute 
his/her data quality validation based on selected target data-set or source 
data-set ( as the golden reference data). It has corresponding library 
supporting it in back-end for the following measurement:\n\n - Accuracy - Does 
data reflect the real-world objects or a verifiable source\n - Completeness - 
Is all necessary data present\n - Validity -  Are all data values within the 
data domains specified by the business\n - Timeliness - Is the data available 
at the time needed\n - Anomaly detection -  Pre-built algorithm functio
 ns for the identification of items, events or observations which do not 
conform to an expected pattern or other items in a dataset\n - Data Profiling - 
Apply statistical analysis and assessment of data values within a dataset for 
consistency, uniqueness and logic.\n\n**Data Collection Layer**:\n\nWe support 
two kinds of data sources, batch data and real time data.\n\nFor batch mode, we 
can collect data source from  our Hadoop platform by various data 
connectors.\n\nFor real time mode, we can connect with messaging system like 
Kafka to near real time analysis.\n\n**Data Process and Storage Layer**:\n\nFor 
batch analysis, our data quality model will compute data quality metrics in our 
spark cluster based on data source in hadoop.\n\nFor near real time analysis, 
we consume data from messaging system, then our data quality model will compute 
our real time data quality metrics in our spark cluster. for data storage, we 
use time series database in our back end to fulfill front end request
 .\n\n**Apache Griffin Service**:\n\nWe have RESTful web services to accomplish 
all the functionalities of Apache Griffin, such as register data-set, create 
data quality model, publish metrics, retrieve metrics, add subscription, etc. 
So, the developers can develop their own user interface based on these web 
serivces.\n\n## Main business process\nHere's the business process 
diagram\n\n![](/images/Business_Process.png)\n\n## Rationale\nThe challenge we 
face at eBay is that our data volume is becoming bigger and bigger, systems 
process become more complex, while we do not have a unified data quality 
solution to ensure the trusted data sets which provide confidences on data 
quality to our data consumers.  The key challenges on data quality 
includes:\n\n1. Existing commercial data quality solution cannot address data 
quality lineage among systems, cannot scale out to support fast growing data at 
eBay\n2. Existing eBay's domain specific tools take a long time to identify and 
fix poor data
  quality when data flowed through multiple systems\n3. Business logic becomes 
complex, requires data quality system much flexible.\n4. Some data quality 
issues do have business impact on user experiences, revenue, efficiency & 
compliance.\n5. Communication overhead of data quality metrics, typically in a 
big organization, which involve different teams.\n\nThe idea of  Apache Apache 
Griffin is to provide Data Quality validation as a Service, to allow data 
engineers and data consumers to have:\n\n - Near real-time understanding of the 
data quality health of your data pipelines with end-to-end monitoring, all in 
one place.\n - Profiling, detecting and correlating issues and providing 
recommendations that drive rapid and focused troubleshooting\n - A centralized 
data quality model management system including rule, metadata, scheduler etc.  
\n - Native code generation to run everywhere, including Hadoop, Kafka, Spark, 
etc.\n - One set of tools to build data quality pipelines across all e
 Bay data platforms.\n\n\n## Disclaimer\n\nApache Griffin is an effort 
undergoing incubation at The Apache Software Foundation (ASF), sponsored by the 
Apache Incubator. Incubation is required of all newly accepted projects until a 
further review indicates that the infrastructure, communications, and decision 
making process have stabilized in a manner consistent with other successful ASF 
projects. While incubation status is not necessarily a reflection of the 
completeness or stability of the code, it does indicate that the project has 
yet to be fully endorsed by the 
ASF.\n\n\n","slug":"home","published":1,"updated":"2017-04-21T03:08:14.000Z","comments":1,"layout":"post","photos":[],"link":"","_id":"cj1rgsv960001nxpo42sqf39x","content":"<h2
 id=\"Abstract\"><a href=\"#Abstract\" class=\"headerlink\" 
title=\"Abstract\"></a>Abstract</h2><p>Apache Griffin is a Data Quality Service 
platform built on Apache Hadoop and Apache Spark. It provides a framework 
process for defining data quality mo
 del, executing data quality measurement, automating data profiling and 
validation, as well as a unified data quality visualization across multiple 
data systems.  It tries to address the data quality challenges in big data and 
streaming context.</p>\n<h2 id=\"Overview-of-Apache-Griffin\"><a 
href=\"#Overview-of-Apache-Griffin\" class=\"headerlink\" title=\"Overview of 
Apache Griffin\"></a>Overview of Apache Griffin</h2><p>At eBay, when people use 
big data (Hadoop or other streaming systems), measurement of data quality is a 
big challenge. Different teams have built customized tools to detect and 
analyze data quality issues within their own domains. As a platform 
organization, we think of taking a platform approach to commonly occurring 
patterns. As such, we are building a platform to provide shared Infrastructure 
and generic features to solve common data quality pain points. This would 
enable us to build trusted data assets.</p>\n<p>Currently it is very difficult 
and costly to do data
  quality validation when we have large volumes of related data flowing across 
multi-platforms (streaming and batch). Take eBay’s Real-time Personalization 
Platform as a sample; Everyday we have to validate the data quality for ~600M 
records. Data quality often becomes one big challenge in this complex 
environment and massive scale.</p>\n<p>We detect the following at 
eBay:</p>\n<ol>\n<li>Lack of an end-to-end, unified view of data quality from 
multiple data sources to target applications that takes into account the 
lineage of the data. This results in a long time to identify and fix data 
quality issues.</li>\n<li>Lack of a system to measure data quality in streaming 
mode through self-service. The need is for a system where datasets can be 
registered, data quality models can be defined, data quality can be visualized 
and monitored using a simple tool and teams alerted when an issue is 
detected.</li>\n<li>Lack of a Shared platform and API Service. Every team 
should not have to apply 
 and manage own hardware and software infrastructure to solve this common 
problem.</li>\n</ol>\n<p>With these in mind, we decided to build Apache Griffin 
- A data quality service that aims to solve the above 
short-comings.</p>\n<p>Apache Griffin includes:</p>\n<p><strong>Data Quality 
Model Engine</strong>: Apache Griffin is model driven solution, user can choose 
various data quality dimension to execute his/her data quality validation based 
on selected target data-set or source data-set ( as the golden reference data). 
It has corresponding library supporting it in back-end for the following 
measurement:</p>\n<ul>\n<li>Accuracy - Does data reflect the real-world objects 
or a verifiable source</li>\n<li>Completeness - Is all necessary data 
present</li>\n<li>Validity -  Are all data values within the data domains 
specified by the business</li>\n<li>Timeliness - Is the data available at the 
time needed</li>\n<li>Anomaly detection -  Pre-built algorithm functions for 
the identification of
  items, events or observations which do not conform to an expected pattern or 
other items in a dataset</li>\n<li>Data Profiling - Apply statistical analysis 
and assessment of data values within a dataset for consistency, uniqueness and 
logic.</li>\n</ul>\n<p><strong>Data Collection Layer</strong>:</p>\n<p>We 
support two kinds of data sources, batch data and real time data.</p>\n<p>For 
batch mode, we can collect data source from  our Hadoop platform by various 
data connectors.</p>\n<p>For real time mode, we can connect with messaging 
system like Kafka to near real time analysis.</p>\n<p><strong>Data Process and 
Storage Layer</strong>:</p>\n<p>For batch analysis, our data quality model will 
compute data quality metrics in our spark cluster based on data source in 
hadoop.</p>\n<p>For near real time analysis, we consume data from messaging 
system, then our data quality model will compute our real time data quality 
metrics in our spark cluster. for data storage, we use time series databa
 se in our back end to fulfill front end request.</p>\n<p><strong>Apache 
Griffin Service</strong>:</p>\n<p>We have RESTful web services to accomplish 
all the functionalities of Apache Griffin, such as register data-set, create 
data quality model, publish metrics, retrieve metrics, add subscription, etc. 
So, the developers can develop their own user interface based on these web 
serivces.</p>\n<h2 id=\"Main-business-process\"><a 
href=\"#Main-business-process\" class=\"headerlink\" title=\"Main business 
process\"></a>Main business process</h2><p>Here’s the business process 
diagram</p>\n<p><img src=\"/images/Business_Process.png\" alt=\"\"></p>\n<h2 
id=\"Rationale\"><a href=\"#Rationale\" class=\"headerlink\" 
title=\"Rationale\"></a>Rationale</h2><p>The challenge we face at eBay is that 
our data volume is becoming bigger and bigger, systems process become more 
complex, while we do not have a unified data quality solution to ensure the 
trusted data sets which provide confidences on data
  quality to our data consumers.  The key challenges on data quality 
includes:</p>\n<ol>\n<li>Existing commercial data quality solution cannot 
address data quality lineage among systems, cannot scale out to support fast 
growing data at eBay</li>\n<li>Existing eBay’s domain specific tools take a 
long time to identify and fix poor data quality when data flowed through 
multiple systems</li>\n<li>Business logic becomes complex, requires data 
quality system much flexible.</li>\n<li>Some data quality issues do have 
business impact on user experiences, revenue, efficiency &amp; 
compliance.</li>\n<li>Communication overhead of data quality metrics, typically 
in a big organization, which involve different teams.</li>\n</ol>\n<p>The idea 
of  Apache Apache Griffin is to provide Data Quality validation as a Service, 
to allow data engineers and data consumers to have:</p>\n<ul>\n<li>Near 
real-time understanding of the data quality health of your data pipelines with 
end-to-end monitoring, all in 
 one place.</li>\n<li>Profiling, detecting and correlating issues and providing 
recommendations that drive rapid and focused troubleshooting</li>\n<li>A 
centralized data quality model management system including rule, metadata, 
scheduler etc.  </li>\n<li>Native code generation to run everywhere, including 
Hadoop, Kafka, Spark, etc.</li>\n<li>One set of tools to build data quality 
pipelines across all eBay data platforms.</li>\n</ul>\n<h2 id=\"Disclaimer\"><a 
href=\"#Disclaimer\" class=\"headerlink\" 
title=\"Disclaimer\"></a>Disclaimer</h2><p>Apache Griffin is an effort 
undergoing incubation at The Apache Software Foundation (ASF), sponsored by the 
Apache Incubator. Incubation is required of all newly accepted projects until a 
further review indicates that the infrastructure, communications, and decision 
making process have stabilized in a manner consistent with other successful ASF 
projects. While incubation status is not necessarily a reflection of the 
completeness or stability of t
 he code, it does indicate that the project has yet to be fully endorsed by the 
ASF.</p>\n","excerpt":"","more":"<h2 id=\"Abstract\"><a href=\"#Abstract\" 
class=\"headerlink\" title=\"Abstract\"></a>Abstract</h2><p>Apache Griffin is a 
Data Quality Service platform built on Apache Hadoop and Apache Spark. It 
provides a framework process for defining data quality model, executing data 
quality measurement, automating data profiling and validation, as well as a 
unified data quality visualization across multiple data systems.  It tries to 
address the data quality challenges in big data and streaming context.</p>\n<h2 
id=\"Overview-of-Apache-Griffin\"><a href=\"#Overview-of-Apache-Griffin\" 
class=\"headerlink\" title=\"Overview of Apache Griffin\"></a>Overview of 
Apache Griffin</h2><p>At eBay, when people use big data (Hadoop or other 
streaming systems), measurement of data quality is a big challenge. Different 
teams have built customized tools to detect and analyze data quality issues wit
 hin their own domains. As a platform organization, we think of taking a 
platform approach to commonly occurring patterns. As such, we are building a 
platform to provide shared Infrastructure and generic features to solve common 
data quality pain points. This would enable us to build trusted data 
assets.</p>\n<p>Currently it is very difficult and costly to do data quality 
validation when we have large volumes of related data flowing across 
multi-platforms (streaming and batch). Take eBay’s Real-time Personalization 
Platform as a sample; Everyday we have to validate the data quality for ~600M 
records. Data quality often becomes one big challenge in this complex 
environment and massive scale.</p>\n<p>We detect the following at 
eBay:</p>\n<ol>\n<li>Lack of an end-to-end, unified view of data quality from 
multiple data sources to target applications that takes into account the 
lineage of the data. This results in a long time to identify and fix data 
quality issues.</li>\n<li>Lack of a 
 system to measure data quality in streaming mode through self-service. The 
need is for a system where datasets can be registered, data quality models can 
be defined, data quality can be visualized and monitored using a simple tool 
and teams alerted when an issue is detected.</li>\n<li>Lack of a Shared 
platform and API Service. Every team should not have to apply and manage own 
hardware and software infrastructure to solve this common 
problem.</li>\n</ol>\n<p>With these in mind, we decided to build Apache Griffin 
- A data quality service that aims to solve the above 
short-comings.</p>\n<p>Apache Griffin includes:</p>\n<p><strong>Data Quality 
Model Engine</strong>: Apache Griffin is model driven solution, user can choose 
various data quality dimension to execute his/her data quality validation based 
on selected target data-set or source data-set ( as the golden reference data). 
It has corresponding library supporting it in back-end for the following 
measurement:</p>\n<ul>\n<li>Accurac
 y - Does data reflect the real-world objects or a verifiable 
source</li>\n<li>Completeness - Is all necessary data 
present</li>\n<li>Validity -  Are all data values within the data domains 
specified by the business</li>\n<li>Timeliness - Is the data available at the 
time needed</li>\n<li>Anomaly detection -  Pre-built algorithm functions for 
the identification of items, events or observations which do not conform to an 
expected pattern or other items in a dataset</li>\n<li>Data Profiling - Apply 
statistical analysis and assessment of data values within a dataset for 
consistency, uniqueness and logic.</li>\n</ul>\n<p><strong>Data Collection 
Layer</strong>:</p>\n<p>We support two kinds of data sources, batch data and 
real time data.</p>\n<p>For batch mode, we can collect data source from  our 
Hadoop platform by various data connectors.</p>\n<p>For real time mode, we can 
connect with messaging system like Kafka to near real time 
analysis.</p>\n<p><strong>Data Process and Storage Layer<
 /strong>:</p>\n<p>For batch analysis, our data quality model will compute data 
quality metrics in our spark cluster based on data source in 
hadoop.</p>\n<p>For near real time analysis, we consume data from messaging 
system, then our data quality model will compute our real time data quality 
metrics in our spark cluster. for data storage, we use time series database in 
our back end to fulfill front end request.</p>\n<p><strong>Apache Griffin 
Service</strong>:</p>\n<p>We have RESTful web services to accomplish all the 
functionalities of Apache Griffin, such as register data-set, create data 
quality model, publish metrics, retrieve metrics, add subscription, etc. So, 
the developers can develop their own user interface based on these web 
serivces.</p>\n<h2 id=\"Main-business-process\"><a 
href=\"#Main-business-process\" class=\"headerlink\" title=\"Main business 
process\"></a>Main business process</h2><p>Here’s the business process 
diagram</p>\n<p><img src=\"/images/Business_Process.pn
 g\" alt=\"\"></p>\n<h2 id=\"Rationale\"><a href=\"#Rationale\" 
class=\"headerlink\" title=\"Rationale\"></a>Rationale</h2><p>The challenge we 
face at eBay is that our data volume is becoming bigger and bigger, systems 
process become more complex, while we do not have a unified data quality 
solution to ensure the trusted data sets which provide confidences on data 
quality to our data consumers.  The key challenges on data quality 
includes:</p>\n<ol>\n<li>Existing commercial data quality solution cannot 
address data quality lineage among systems, cannot scale out to support fast 
growing data at eBay</li>\n<li>Existing eBay’s domain specific tools take a 
long time to identify and fix poor data quality when data flowed through 
multiple systems</li>\n<li>Business logic becomes complex, requires data 
quality system much flexible.</li>\n<li>Some data quality issues do have 
business impact on user experiences, revenue, efficiency &amp; 
compliance.</li>\n<li>Communication overhead of data 
 quality metrics, typically in a big organization, which involve different 
teams.</li>\n</ol>\n<p>The idea of  Apache Apache Griffin is to provide Data 
Quality validation as a Service, to allow data engineers and data consumers to 
have:</p>\n<ul>\n<li>Near real-time understanding of the data quality health of 
your data pipelines with end-to-end monitoring, all in one 
place.</li>\n<li>Profiling, detecting and correlating issues and providing 
recommendations that drive rapid and focused troubleshooting</li>\n<li>A 
centralized data quality model management system including rule, metadata, 
scheduler etc.  </li>\n<li>Native code generation to run everywhere, including 
Hadoop, Kafka, Spark, etc.</li>\n<li>One set of tools to build data quality 
pipelines across all eBay data platforms.</li>\n</ul>\n<h2 id=\"Disclaimer\"><a 
href=\"#Disclaimer\" class=\"headerlink\" 
title=\"Disclaimer\"></a>Disclaimer</h2><p>Apache Griffin is an effort 
undergoing incubation at The Apache Software Foundation (
 ASF), sponsored by the Apache Incubator. Incubation is required of all newly 
accepted projects until a further review indicates that the infrastructure, 
communications, and decision making process have stabilized in a manner 
consistent with other successful ASF projects. While incubation status is not 
necessarily a reflection of the completeness or stability of the code, it does 
indicate that the project has yet to be fully endorsed by the 
ASF.</p>\n"},{"title":"Plan","date":"2017-03-03T02:49:47.000Z","_content":"\n## 
Features\n\n| Group        | Component           | Description  |\n| 
------------- |:-------------:| -----:|\n| Measure      | accuracy | accuracy 
measure between single source of truth and target |\n| Measure      | profiling 
| profiling target data asset, providing statistics by different rules or 
dimensions |\n| Measure      | completeness | are all data persent|\n| Measure  
    | timeliness | are data available at the specified time  |\n| Measure      
| anomaly det
 ection | data asset conform to an expected pattern or not |\n| Measure      | 
validity | are all data valid or not according to domain business |\n| Service  
    | web service | restful service accessing data assets|\n| Web UI      | ui 
page | web page to explore apache griffin features|\n| Connector      | spark 
connector | execute jobs in spark cluster|\n| Schedule      | schedule | 
schedule measure jobs on different clusters|\n\n## Plan\n\n#### 2017.04 batch 
accuracy onboard\n\n\n- Week01: headless batch accuracy measure\n  * headless 
batch accuracy measure use case onboard.\n  * headless batch accuracy measure 
usage document.\n\n- Week02: batch accuracy measure with service\n  * release 
batch accuracy measure with service enabled. \n  * end2end headless workable 
use case, including guidance, metrics report. \n  * prepare data in hive, 
explore data asset from ui, generate accuracy measure in ui, trigger accuracy 
measure in script.\n\n- Week03: batch accuracy measure with UI Page\
 n  * UI Page refine: remove 'create data asset' \n  * end2end ui enabled 
workable use case. \n  * prepare data in hive, explore data asset from ui, 
generate accuracy measure in ui, trigger accuracy measure in script.\n\n- 
Week04: release batch accuracy measure with UI, Service, Scheduler, Measure.\n  
* end to end full pipeline use case enabled.\n\n\n#### 2017.05 streaming 
accuracy P2\n\n#### 2017.06 streaming accuracy onboard P2\n\n#### 2017.07 
schedule P4\n\n#### 2017.08 profiling P3\n\n#### 2017.09 completeness 
P2\n\n#### 2017.10 timeliness P2\n\n#### 2017.11 anomaly detection P3\n\n#### 
2017.12 validity P3\n\n\n## Release Notes\n\n2017.03.30 release streaming 
measures\n\nWeekly updates\n\nwell planed and scalable 
\n\n\npriority/epic/story/breakdown to backlog task.\n\n3 
measures\n\n\n\n\n\n","source":"_posts/plan.md","raw":"---\ntitle: Plan\ndate: 
2017-03-03 10:49:47\ntags:\n---\n\n## Features\n\n| Group        | Component    
       | Description  |\n| ------------- |:-----------
 --:| -----:|\n| Measure      | accuracy | accuracy measure between single 
source of truth and target |\n| Measure      | profiling | profiling target 
data asset, providing statistics by different rules or dimensions |\n| Measure  
    | completeness | are all data persent|\n| Measure      | timeliness | are 
data available at the specified time  |\n| Measure      | anomaly detection | 
data asset conform to an expected pattern or not |\n| Measure      | validity | 
are all data valid or not according to domain business |\n| Service      | web 
service | restful service accessing data assets|\n| Web UI      | ui page | web 
page to explore apache griffin features|\n| Connector      | spark connector | 
execute jobs in spark cluster|\n| Schedule      | schedule | schedule measure 
jobs on different clusters|\n\n## Plan\n\n#### 2017.04 batch accuracy 
onboard\n\n\n- Week01: headless batch accuracy measure\n  * headless batch 
accuracy measure use case onboard.\n  * headless batch accuracy measur
 e usage document.\n\n- Week02: batch accuracy measure with service\n  * 
release batch accuracy measure with service enabled. \n  * end2end headless 
workable use case, including guidance, metrics report. \n  * prepare data in 
hive, explore data asset from ui, generate accuracy measure in ui, trigger 
accuracy measure in script.\n\n- Week03: batch accuracy measure with UI Page\n  
* UI Page refine: remove 'create data asset' \n  * end2end ui enabled workable 
use case. \n  * prepare data in hive, explore data asset from ui, generate 
accuracy measure in ui, trigger accuracy measure in script.\n\n- Week04: 
release batch accuracy measure with UI, Service, Scheduler, Measure.\n  * end 
to end full pipeline use case enabled.\n\n\n#### 2017.05 streaming accuracy 
P2\n\n#### 2017.06 streaming accuracy onboard P2\n\n#### 2017.07 schedule 
P4\n\n#### 2017.08 profiling P3\n\n#### 2017.09 completeness P2\n\n#### 2017.10 
timeliness P2\n\n#### 2017.11 anomaly detection P3\n\n#### 2017.12 validity 
P3\n\n
 \n## Release Notes\n\n2017.03.30 release streaming measures\n\nWeekly 
updates\n\nwell planed and scalable \n\n\npriority/epic/story/breakdown to 
backlog task.\n\n3 
measures\n\n\n\n\n\n","slug":"plan","published":1,"updated":"2017-04-10T08:19:49.000Z","comments":1,"layout":"post","photos":[],"link":"","_id":"cj1rgsv9i0002nxpo0m1clei0","content":"<h2
 id=\"Features\"><a href=\"#Features\" class=\"headerlink\" 
title=\"Features\"></a>Features</h2><table>\n<thead>\n<tr>\n<th>Group</th>\n<th 
style=\"text-align:center\">Component</th>\n<th 
style=\"text-align:right\">Description</th>\n</tr>\n</thead>\n<tbody>\n<tr>\n<td>Measure</td>\n<td
 style=\"text-align:center\">accuracy</td>\n<td 
style=\"text-align:right\">accuracy measure between single source of truth and 
target</td>\n</tr>\n<tr>\n<td>Measure</td>\n<td 
style=\"text-align:center\">profiling</td>\n<td 
style=\"text-align:right\">profiling target data asset, providing statistics by 
different rules or dimensions</td>\n</tr>\n<tr>\n<td>Measu
 re</td>\n<td style=\"text-align:center\">completeness</td>\n<td 
style=\"text-align:right\">are all data 
persent</td>\n</tr>\n<tr>\n<td>Measure</td>\n<td 
style=\"text-align:center\">timeliness</td>\n<td style=\"text-align:right\">are 
data available at the specified time</td>\n</tr>\n<tr>\n<td>Measure</td>\n<td 
style=\"text-align:center\">anomaly detection</td>\n<td 
style=\"text-align:right\">data asset conform to an expected pattern or 
not</td>\n</tr>\n<tr>\n<td>Measure</td>\n<td 
style=\"text-align:center\">validity</td>\n<td style=\"text-align:right\">are 
all data valid or not according to domain 
business</td>\n</tr>\n<tr>\n<td>Service</td>\n<td 
style=\"text-align:center\">web service</td>\n<td 
style=\"text-align:right\">restful service accessing data 
assets</td>\n</tr>\n<tr>\n<td>Web UI</td>\n<td style=\"text-align:center\">ui 
page</td>\n<td style=\"text-align:right\">web page to explore apache griffin 
features</td>\n</tr>\n<tr>\n<td>Connector</td>\n<td style=\"text-align:center\">
 spark connector</td>\n<td style=\"text-align:right\">execute jobs in spark 
cluster</td>\n</tr>\n<tr>\n<td>Schedule</td>\n<td 
style=\"text-align:center\">schedule</td>\n<td 
style=\"text-align:right\">schedule measure jobs on different 
clusters</td>\n</tr>\n</tbody>\n</table>\n<h2 id=\"Plan\"><a href=\"#Plan\" 
class=\"headerlink\" title=\"Plan\"></a>Plan</h2><h4 
id=\"2017-04-batch-accuracy-onboard\"><a 
href=\"#2017-04-batch-accuracy-onboard\" class=\"headerlink\" title=\"2017.04 
batch accuracy onboard\"></a>2017.04 batch accuracy 
onboard</h4><ul>\n<li><p>Week01: headless batch accuracy 
measure</p>\n<ul>\n<li>headless batch accuracy measure use case 
onboard.</li>\n<li>headless batch accuracy measure usage 
document.</li>\n</ul>\n</li>\n<li><p>Week02: batch accuracy measure with 
service</p>\n<ul>\n<li>release batch accuracy measure with service enabled. 
</li>\n<li>end2end headless workable use case, including guidance, metrics 
report. </li>\n<li>prepare data in hive, explore data asset f
 rom ui, generate accuracy measure in ui, trigger accuracy measure in 
script.</li>\n</ul>\n</li>\n<li><p>Week03: batch accuracy measure with UI 
Page</p>\n<ul>\n<li>UI Page refine: remove ‘create data asset’ 
</li>\n<li>end2end ui enabled workable use case. </li>\n<li>prepare data in 
hive, explore data asset from ui, generate accuracy measure in ui, trigger 
accuracy measure in script.</li>\n</ul>\n</li>\n<li><p>Week04: release batch 
accuracy measure with UI, Service, Scheduler, Measure.</p>\n<ul>\n<li>end to 
end full pipeline use case enabled.</li>\n</ul>\n</li>\n</ul>\n<h4 
id=\"2017-05-streaming-accuracy-P2\"><a href=\"#2017-05-streaming-accuracy-P2\" 
class=\"headerlink\" title=\"2017.05 streaming accuracy P2\"></a>2017.05 
streaming accuracy P2</h4><h4 id=\"2017-06-streaming-accuracy-onboard-P2\"><a 
href=\"#2017-06-streaming-accuracy-onboard-P2\" class=\"headerlink\" 
title=\"2017.06 streaming accuracy onboard P2\"></a>2017.06 streaming accuracy 
onboard P2</h4><h4 id=\"2017-07-sche
 dule-P4\"><a href=\"#2017-07-schedule-P4\" class=\"headerlink\" 
title=\"2017.07 schedule P4\"></a>2017.07 schedule P4</h4><h4 
id=\"2017-08-profiling-P3\"><a href=\"#2017-08-profiling-P3\" 
class=\"headerlink\" title=\"2017.08 profiling P3\"></a>2017.08 profiling 
P3</h4><h4 id=\"2017-09-completeness-P2\"><a href=\"#2017-09-completeness-P2\" 
class=\"headerlink\" title=\"2017.09 completeness P2\"></a>2017.09 completeness 
P2</h4><h4 id=\"2017-10-timeliness-P2\"><a href=\"#2017-10-timeliness-P2\" 
class=\"headerlink\" title=\"2017.10 timeliness P2\"></a>2017.10 timeliness 
P2</h4><h4 id=\"2017-11-anomaly-detection-P3\"><a 
href=\"#2017-11-anomaly-detection-P3\" class=\"headerlink\" title=\"2017.11 
anomaly detection P3\"></a>2017.11 anomaly detection P3</h4><h4 
id=\"2017-12-validity-P3\"><a href=\"#2017-12-validity-P3\" 
class=\"headerlink\" title=\"2017.12 validity P3\"></a>2017.12 validity 
P3</h4><h2 id=\"Release-Notes\"><a href=\"#Release-Notes\" class=\"headerlink\" 
title=\"Release Notes\"
 ></a>Release Notes</h2><p>2017.03.30 release streaming measures</p>\n<p>Weekly 
 >updates</p>\n<p>well planed and scalable 
 ></p>\n<p>priority/epic/story/breakdown to backlog task.</p>\n<p>3 
 >measures</p>\n","excerpt":"","more":"<h2 id=\"Features\"><a 
 >href=\"#Features\" class=\"headerlink\" 
 >title=\"Features\"></a>Features</h2><table>\n<thead>\n<tr>\n<th>Group</th>\n<th
 > style=\"text-align:center\">Component</th>\n<th 
 >style=\"text-align:right\">Description</th>\n</tr>\n</thead>\n<tbody>\n<tr>\n<td>Measure</td>\n<td
 > style=\"text-align:center\">accuracy</td>\n<td 
 >style=\"text-align:right\">accuracy measure between single source of truth 
 >and target</td>\n</tr>\n<tr>\n<td>Measure</td>\n<td 
 >style=\"text-align:center\">profiling</td>\n<td 
 >style=\"text-align:right\">profiling target data asset, providing statistics 
 >by different rules or dimensions</td>\n</tr>\n<tr>\n<td>Measure</td>\n<td 
 >style=\"text-align:center\">completeness</td>\n<td 
 >style=\"text-align:right\">are all data persent</td>\n</tr>\
 n<tr>\n<td>Measure</td>\n<td style=\"text-align:center\">timeliness</td>\n<td 
style=\"text-align:right\">are data available at the specified 
time</td>\n</tr>\n<tr>\n<td>Measure</td>\n<td 
style=\"text-align:center\">anomaly detection</td>\n<td 
style=\"text-align:right\">data asset conform to an expected pattern or 
not</td>\n</tr>\n<tr>\n<td>Measure</td>\n<td 
style=\"text-align:center\">validity</td>\n<td style=\"text-align:right\">are 
all data valid or not according to domain 
business</td>\n</tr>\n<tr>\n<td>Service</td>\n<td 
style=\"text-align:center\">web service</td>\n<td 
style=\"text-align:right\">restful service accessing data 
assets</td>\n</tr>\n<tr>\n<td>Web UI</td>\n<td style=\"text-align:center\">ui 
page</td>\n<td style=\"text-align:right\">web page to explore apache griffin 
features</td>\n</tr>\n<tr>\n<td>Connector</td>\n<td 
style=\"text-align:center\">spark connector</td>\n<td 
style=\"text-align:right\">execute jobs in spark 
cluster</td>\n</tr>\n<tr>\n<td>Schedule</td>\n<td
  style=\"text-align:center\">schedule</td>\n<td 
style=\"text-align:right\">schedule measure jobs on different 
clusters</td>\n</tr>\n</tbody>\n</table>\n<h2 id=\"Plan\"><a href=\"#Plan\" 
class=\"headerlink\" title=\"Plan\"></a>Plan</h2><h4 
id=\"2017-04-batch-accuracy-onboard\"><a 
href=\"#2017-04-batch-accuracy-onboard\" class=\"headerlink\" title=\"2017.04 
batch accuracy onboard\"></a>2017.04 batch accuracy 
onboard</h4><ul>\n<li><p>Week01: headless batch accuracy 
measure</p>\n<ul>\n<li>headless batch accuracy measure use case 
onboard.</li>\n<li>headless batch accuracy measure usage 
document.</li>\n</ul>\n</li>\n<li><p>Week02: batch accuracy measure with 
service</p>\n<ul>\n<li>release batch accuracy measure with service enabled. 
</li>\n<li>end2end headless workable use case, including guidance, metrics 
report. </li>\n<li>prepare data in hive, explore data asset from ui, generate 
accuracy measure in ui, trigger accuracy measure in 
script.</li>\n</ul>\n</li>\n<li><p>Week03: batch accura
 cy measure with UI Page</p>\n<ul>\n<li>UI Page refine: remove ‘create data 
asset’ </li>\n<li>end2end ui enabled workable use case. </li>\n<li>prepare 
data in hive, explore data asset from ui, generate accuracy measure in ui, 
trigger accuracy measure in script.</li>\n</ul>\n</li>\n<li><p>Week04: release 
batch accuracy measure with UI, Service, Scheduler, Measure.</p>\n<ul>\n<li>end 
to end full pipeline use case enabled.</li>\n</ul>\n</li>\n</ul>\n<h4 
id=\"2017-05-streaming-accuracy-P2\"><a href=\"#2017-05-streaming-accuracy-P2\" 
class=\"headerlink\" title=\"2017.05 streaming accuracy P2\"></a>2017.05 
streaming accuracy P2</h4><h4 id=\"2017-06-streaming-accuracy-onboard-P2\"><a 
href=\"#2017-06-streaming-accuracy-onboard-P2\" class=\"headerlink\" 
title=\"2017.06 streaming accuracy onboard P2\"></a>2017.06 streaming accuracy 
onboard P2</h4><h4 id=\"2017-07-schedule-P4\"><a href=\"#2017-07-schedule-P4\" 
class=\"headerlink\" title=\"2017.07 schedule P4\"></a>2017.07 schedule 
P4</h4><h
 4 id=\"2017-08-profiling-P3\"><a href=\"#2017-08-profiling-P3\" 
class=\"headerlink\" title=\"2017.08 profiling P3\"></a>2017.08 profiling 
P3</h4><h4 id=\"2017-09-completeness-P2\"><a href=\"#2017-09-completeness-P2\" 
class=\"headerlink\" title=\"2017.09 completeness P2\"></a>2017.09 completeness 
P2</h4><h4 id=\"2017-10-timeliness-P2\"><a href=\"#2017-10-timeliness-P2\" 
class=\"headerlink\" title=\"2017.10 timeliness P2\"></a>2017.10 timeliness 
P2</h4><h4 id=\"2017-11-anomaly-detection-P3\"><a 
href=\"#2017-11-anomaly-detection-P3\" class=\"headerlink\" title=\"2017.11 
anomaly detection P3\"></a>2017.11 anomaly detection P3</h4><h4 
id=\"2017-12-validity-P3\"><a href=\"#2017-12-validity-P3\" 
class=\"headerlink\" title=\"2017.12 validity P3\"></a>2017.12 validity 
P3</h4><h2 id=\"Release-Notes\"><a href=\"#Release-Notes\" class=\"headerlink\" 
title=\"Release Notes\"></a>Release Notes</h2><p>2017.03.30 release streaming 
measures</p>\n<p>Weekly updates</p>\n<p>well planed and scalable </p>
 \n<p>priority/epic/story/breakdown to backlog task.</p>\n<p>3 
measures</p>\n"}],"PostAsset":[],"PostCategory":[],"PostTag":[],"Tag":[]}}
\ No newline at end of file
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 Mailing Lists\n\[email protected] \n\n[To subscribe dev 
list](mailto:[email protected])\n\n[To unsubscribe dev 
list](mailto:[email protected])\n\n## 
Jira\n\n[https://issues.apache.org/jira/browse/GRIFFIN](https://issues.apache.org/jira/browse/GRIFFIN)\n\n##
 
Wiki\n\n[https://cwiki.apache.org/confluence/display/GRIFFIN/Griffin](https://cwiki.apache.org/confluence/display/GRIFFIN/Griffin)\n\n##
 Contributing\n\n- Create jira ticket to specify what you w
 ant to do\n  ```bash\n  create ticket here.\n  
https://issues.apache.org/jira/browse/GRIFFIN\n  ```\n- Create one new branch 
for this task\n  ```bash\n  git clone 
https://github.com/apache/incubator-griffin.git\n  git checkout -b 
yourNewFeatrueBranch\n  ```\n- Commit and send pr to us\n\t```\n\t###please 
associate related JIRA TICK in your comments\n\tgit commit -am \"For task 
GRIFFIN-10 , blabla...\"\n\t```\n\n- GRIFFIN IPMC will review and accept your 
pr as 
contributing.\n\n\n\n\n\n\n","source":"_posts/community.md","raw":"---\ntitle: 
Community\ndate: 2017-03-04 13:00:45\ntags:\n---\n\n## Mailing 
Lists\n\[email protected] \n\n[To subscribe dev 
list](mailto:[email protected])\n\n[To unsubscribe dev 
list](mailto:[email protected])\n\n## 
Jira\n\n[https://issues.apache.org/jira/browse/GRIFFIN](https://issues.apache.org/jira/browse/GRIFFIN)\n\n##
 Wiki\n\n[https://cwiki.apache.org/confluence/display/GRIFFIN/Griffin](htt
 ps://cwiki.apache.org/confluence/display/GRIFFIN/Griffin)\n\n## 
Contributing\n\n- Create jira ticket to specify what you want to do\n  
```bash\n  create ticket here.\n  
https://issues.apache.org/jira/browse/GRIFFIN\n  ```\n- Create one new branch 
for this task\n  ```bash\n  git clone 
https://github.com/apache/incubator-griffin.git\n  git checkout -b 
yourNewFeatrueBranch\n  ```\n- Commit and send pr to us\n\t```\n\t###please 
associate related JIRA TICK in your comments\n\tgit commit -am \"For task 
GRIFFIN-10 , blabla...\"\n\t```\n\n- GRIFFIN IPMC will review and accept your 
pr as 
contributing.\n\n\n\n\n\n\n","slug":"community","published":1,"updated":"2017-04-07T03:10:34.000Z","comments":1,"layout":"post","photos":[],"link":"","_id":"cj1rhqmbl0000x8poizvybwbg","content":"<h2
 id=\"Mailing-Lists\"><a href=\"#Mailing-Lists\" class=\"headerlink\" 
title=\"Mailing Lists\"></a>Mailing 
Lists</h2><p>[email protected] </p>\n<p><a 
href=\"mailto:[email protected]
 che.org\" target=\"_blank\" rel=\"external\">To subscribe dev 
list</a></p>\n<p><a 
href=\"mailto:[email protected]\"; target=\"_blank\" 
rel=\"external\">To unsubscribe dev list</a></p>\n<h2 id=\"Jira\"><a 
href=\"#Jira\" class=\"headerlink\" title=\"Jira\"></a>Jira</h2><p><a 
href=\"https://issues.apache.org/jira/browse/GRIFFIN\"; target=\"_blank\" 
rel=\"external\">https://issues.apache.org/jira/browse/GRIFFIN</a></p>\n<h2 
id=\"Wiki\"><a href=\"#Wiki\" class=\"headerlink\" 
title=\"Wiki\"></a>Wiki</h2><p><a 
href=\"https://cwiki.apache.org/confluence/display/GRIFFIN/Griffin\"; 
target=\"_blank\" 
rel=\"external\">https://cwiki.apache.org/confluence/display/GRIFFIN/Griffin</a></p>\n<h2
 id=\"Contributing\"><a href=\"#Contributing\" class=\"headerlink\" 
title=\"Contributing\"></a>Contributing</h2><ul>\n<li><p>Create jira ticket to 
specify what you want to do</p>\n<figure class=\"highlight 
bash\"><table><tr><td class=\"gutter\"><pre><div class=\"line\">1</div><div 
class
 =\"line\">2</div></pre></td><td class=\"code\"><pre><div class=\"line\">create 
ticket here.</div><div 
class=\"line\">https://issues.apache.org/jira/browse/GRIFFIN</div></pre></td></tr></table></figure>\n</li>\n<li><p>Create
 one new branch for this task</p>\n<figure class=\"highlight 
bash\"><table><tr><td class=\"gutter\"><pre><div class=\"line\">1</div><div 
class=\"line\">2</div></pre></td><td class=\"code\"><pre><div 
class=\"line\">git <span class=\"built_in\">clone</span> 
https://github.com/apache/incubator-griffin.git</div><div class=\"line\">git 
checkout -b 
yourNewFeatrueBranch</div></pre></td></tr></table></figure>\n</li>\n<li><p>Commit
 and send pr to us</p>\n  <figure class=\"highlight plain\"><table><tr><td 
class=\"gutter\"><pre><div class=\"line\">1</div><div 
class=\"line\">2</div></pre></td><td class=\"code\"><pre><div 
class=\"line\">###please associate related JIRA TICK in your comments</div><div 
class=\"line\">git commit -am &quot;For task GRIFFIN-10 , blabla...&quot;</di
 v></pre></td></tr></table></figure>\n</li>\n<li><p>GRIFFIN IPMC will review 
and accept your pr as 
contributing.</p>\n</li>\n</ul>\n","excerpt":"","more":"<h2 
id=\"Mailing-Lists\"><a href=\"#Mailing-Lists\" class=\"headerlink\" 
title=\"Mailing Lists\"></a>Mailing 
Lists</h2><p>[email protected] </p>\n<p><a 
href=\"mailto:[email protected]\";>To subscribe dev 
list</a></p>\n<p><a 
href=\"mailto:[email protected]\";>To unsubscribe dev 
list</a></p>\n<h2 id=\"Jira\"><a href=\"#Jira\" class=\"headerlink\" 
title=\"Jira\"></a>Jira</h2><p><a 
href=\"https://issues.apache.org/jira/browse/GRIFFIN\";>https://issues.apache.org/jira/browse/GRIFFIN</a></p>\n<h2
 id=\"Wiki\"><a href=\"#Wiki\" class=\"headerlink\" 
title=\"Wiki\"></a>Wiki</h2><p><a 
href=\"https://cwiki.apache.org/confluence/display/GRIFFIN/Griffin\";>https://cwiki.apache.org/confluence/display/GRIFFIN/Griffin</a></p>\n<h2
 id=\"Contributing\"><a href=\"#Contributing\" class=\"he
 aderlink\" title=\"Contributing\"></a>Contributing</h2><ul>\n<li><p>Create 
jira ticket to specify what you want to do</p>\n<figure class=\"highlight 
bash\"><table><tr><td class=\"gutter\"><pre><div class=\"line\">1</div><div 
class=\"line\">2</div></pre></td><td class=\"code\"><pre><div 
class=\"line\">create ticket here.</div><div 
class=\"line\">https://issues.apache.org/jira/browse/GRIFFIN</div></pre></td></tr></table></figure>\n</li>\n<li><p>Create
 one new branch for this task</p>\n<figure class=\"highlight 
bash\"><table><tr><td class=\"gutter\"><pre><div class=\"line\">1</div><div 
class=\"line\">2</div></pre></td><td class=\"code\"><pre><div 
class=\"line\">git <span class=\"built_in\">clone</span> 
https://github.com/apache/incubator-griffin.git</div><div class=\"line\">git 
checkout -b 
yourNewFeatrueBranch</div></pre></td></tr></table></figure>\n</li>\n<li><p>Commit
 and send pr to us</p>\n  <figure class=\"highlight plain\"><table><tr><td 
class=\"gutter\"><pre><div class=\"line\">1
 </div><div class=\"line\">2</div></pre></td><td class=\"code\"><pre><div 
class=\"line\">###please associate related JIRA TICK in your comments</div><div 
class=\"line\">git commit -am &quot;For task GRIFFIN-10 , 
blabla...&quot;</div></pre></td></tr></table></figure>\n</li>\n<li><p>GRIFFIN 
IPMC will review and accept your pr as contributing.</p>\n</li>

<TRUNCATED>

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