http://git-wip-us.apache.org/repos/asf/incubator-griffin-site/blob/1c62dc5d/db.json
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diff --git a/db.json b/db.json
index 075c8f7..d25ac63 100644
--- a/db.json
+++ b/db.json
@@ -1 +1 @@
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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:dev-unsub
 [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","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,"u
 
pdated":"2017-04-07T03:10:34.000Z","comments":1,"layout":"post","photos":[],"link":"","_id":"cj1x9hpyo0000dhpoduz5ty10","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://cwik
 i.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;</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/GRIFF
 IN\">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=\"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><di
 v 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, automat
 ing 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 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 Gri
 ffin 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 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 organizat
 ion, 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 pro
 cess 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 q
 uality 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 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 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 troublesho
 oting\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","slug":"home","published":1,"updated":"2017-04-21T03:08:14.000Z","comments":1,"layout":"post","photos":[],"link":"","_id":"cj1x9hpyr0001dhpoi3ee9uof","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 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 
within their own domains. As a platform organization, we think of taking a 
platform approach to commonly occurring p
 atterns. 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 ca
 n 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 dat
 a 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 clust
 er 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.png\" alt=\"\"></p>\n<h2 
id=\"Rationale\"><a href=\"#Rationale\" class=\"headerlink\" 
title=\"Rationale\"></a>Ratio
 nale</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  Apa
 che 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 re
 view 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","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 Grif
 fin\"></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 qua
 lity 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 
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 s
 erivces.</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 s
 ystems</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 qualit
 y 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      | prof
 iling | 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 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| Schedul
 e      | 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 str
 eaming 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":"cj1x9hpyt0002dhpoccpuvsku","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 so
 urce 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 servic
 e 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 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-schedule-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 dete
 ction 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=\"te
 xt-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-a
 lign: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 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-schedule-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 P
 3\"></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 
l
 ist](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","source":"_posts/community.md","raw":"---\ntitle: 
Community\ndate: 2017-03-04 13:00:45\ntags:\n---\n\n## Mailing 
Lists\n\[email protected]
 cubator.apache.org \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":"commun
 
ity","published":1,"updated":"2017-04-07T03:10:34.000Z","comments":1,"layout":"post","photos":[],"link":"","_id":"cj1x9p0ag0000m7poo7gtyp5e","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=\"ex
 
ternal\">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;</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/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 cl
 ass=\"code\"><pre><div class=\"line\">git <span 
class=\"built_in\">clone</span> https://github.com/a

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