[GitHub] incubator-carbondata pull request #602: [CARBONDATA-710] Updated the FAQs an...

[qiuchenjian-2]

GitHub user PallaviSingh1992 opened a pull request:

    https://github.com/apache/incubator-carbondata/pull/602

    [CARBONDATA-710] Updated the FAQs and Troubleshooting

    Added content to FAQs and Troubleshooting


You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/PallaviSingh1992/incubator-carbondata feature/UpdatedTroubleshootingAndFAQ

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/incubator-carbondata/pull/602.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #602
   
----
commit 43457b753b1d975f8ac6758aaae95e696b595c83
Author: PallaviSingh1992 <[hidden email]>
Date:   2017-02-16T12:51:30Z

    updated the FAQs and Troubleshooting

----


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[qiuchenjian-2]

Github user CarbonDataQA commented on the issue:

    https://github.com/apache/incubator-carbondata/pull/602
 
    Build Success with Spark 1.6.2, Please check CI http://136.243.101.176:8080/job/ApacheCarbonPRBuilder/914/



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[qiuchenjian-2]

Github user chenliang613 commented on the issue:

    https://github.com/apache/incubator-carbondata/pull/602
 
    @sgururajshetty  please review it.


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[qiuchenjian-2]

Github user CarbonDataQA commented on the issue:

    https://github.com/apache/incubator-carbondata/pull/602
 
    Build Success with Spark 1.6.2, Please check CI http://136.243.101.176:8080/job/ApacheCarbonPRBuilder/915/



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[qiuchenjian-2]

Github user sgururajshetty commented on the issue:

    https://github.com/apache/incubator-carbondata/pull/602
 
    LGTM


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[qiuchenjian-2]

Github user chenliang613 commented on a diff in the pull request:

    https://github.com/apache/incubator-carbondata/pull/602#discussion_r102380658
 
    --- Diff: docs/faq.md ---
    @@ -17,30 +17,128 @@
         under the License.
     -->
     
    +<!--
    +    Licensed to the Apache Software Foundation (ASF) under one
    +    or more contributor license agreements.  See the NOTICE file
    +    distributed with this work for additional information
    +    regarding copyright ownership.  The ASF licenses this file
    +    to you under the Apache License, Version 2.0 (the
    +    "License"); you may not use this file except in compliance
    +    with the License.  You may obtain a copy of the License at
    +
    +      http://www.apache.org/licenses/LICENSE-2.0
    +
    +    Unless required by applicable law or agreed to in writing,
    --- End diff --
   
    Why repeatedly add the license header ?


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[qiuchenjian-2]

Github user PallaviSingh1992 commented on a diff in the pull request:

    https://github.com/apache/incubator-carbondata/pull/602#discussion_r102384069
 
    --- Diff: docs/faq.md ---
    @@ -17,30 +17,128 @@
         under the License.
     -->
     
    +<!--
    +    Licensed to the Apache Software Foundation (ASF) under one
    +    or more contributor license agreements.  See the NOTICE file
    +    distributed with this work for additional information
    +    regarding copyright ownership.  The ASF licenses this file
    +    to you under the Apache License, Version 2.0 (the
    +    "License"); you may not use this file except in compliance
    +    with the License.  You may obtain a copy of the License at
    +
    +      http://www.apache.org/licenses/LICENSE-2.0
    +
    +    Unless required by applicable law or agreed to in writing,
    --- End diff --
   
    @chenliang613 Fixed the duplicate license issue.


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[qiuchenjian-2]

Github user PallaviSingh1992 commented on the issue:

    https://github.com/apache/incubator-carbondata/pull/602
 
    @chenliang613 please review


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[qiuchenjian-2]

Github user CarbonDataQA commented on the issue:

    https://github.com/apache/incubator-carbondata/pull/602
 
    Build Success with Spark 1.6.2, Please check CI http://136.243.101.176:8080/job/ApacheCarbonPRBuilder/931/



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[qiuchenjian-2]

Github user chenliang613 commented on a diff in the pull request:

    https://github.com/apache/incubator-carbondata/pull/602#discussion_r102396384
 
    --- Diff: docs/faq.md ---
    @@ -18,30 +18,124 @@
     -->
     
     # FAQs
    -* **Auto Compaction not Working**
     
    -    The Property carbon.enable.auto.load.merge in carbon.properties need to be set to true.
    +* [Can we preserve Segments from Compaction?](#can-we-preserve-segments-from-compaction)
    +* [Can we disable horizontal compaction?](#can-we-disable-horizontal-compaction)
    +* [What is horizontal compaction?](#what-is-horizontal-compaction)
    +* [How to enable Compaction while data loading?](#how-to-enable-compaction-while-data-loading)
    +* [Where are Bad Records Stored in CarbonData?](#where-are-bad-records-stored-in-carbondata)
    +* [What are Bad Records?](#what-are-bad-records)
    +* [Can we use CarbonData on Standalone Spark Cluster?](#can-we-use-carbondata-on-standalone-spark-cluster)
    +* [What versions of Apache Spark are Compatible with CarbonData?](#what-versions-of-apache-spark-are-compatible-with-carbondata)
    +* [Can we Load Data from excel?](#can-we-load-data-from-excel)
    +* [How to enable Single Pass Data Loading?](#how-to-enable-single-pass-data-loading)
    +* [What is Single Pass Data Loading?](#what-is-single-pass-data-loading)
    +* [How to specify the data loading format for CarbonData ?](#how-to-specify-the-data-loading-format-for-carbondata)
    +* [How to resolve store location can’t be found?](#how-to-resolve-store-location-can-not-be-found)
    +* [What is carbon.lock.type?]()
    +* [How to enable Auto Compaction?](#how-to-enable-auto-compaction)
    +* [How to resolve Abstract Method Error?](#how-to-resolve-abstract-method-error)
    +* [Getting Exception on Creating a View](#getting-exception-on-creating-a-view)
    +* [Is CarbonData supported for Windows?](#is-carbondata-supported-for-windows)
    +* [How to handle Bad Records?](#how-to-handle-bad-records)
     
    -* **Getting Abstract method error**
    +## Can we preserve Segments from Compaction?
    +If you want to preserve number of segments from being compacted then you can set the property  **carbon.numberof.preserve.segments**  equal to the **value of number of segments to be preserved**.
    --- End diff --
   
    Can you explain which case need to preserve segments?


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[qiuchenjian-2]

Github user chenliang613 commented on a diff in the pull request:

    https://github.com/apache/incubator-carbondata/pull/602#discussion_r102396819
 
    --- Diff: docs/faq.md ---
    @@ -18,30 +18,124 @@
     -->
     
     # FAQs
    -* **Auto Compaction not Working**
     
    -    The Property carbon.enable.auto.load.merge in carbon.properties need to be set to true.
    +* [Can we preserve Segments from Compaction?](#can-we-preserve-segments-from-compaction)
    +* [Can we disable horizontal compaction?](#can-we-disable-horizontal-compaction)
    +* [What is horizontal compaction?](#what-is-horizontal-compaction)
    +* [How to enable Compaction while data loading?](#how-to-enable-compaction-while-data-loading)
    +* [Where are Bad Records Stored in CarbonData?](#where-are-bad-records-stored-in-carbondata)
    +* [What are Bad Records?](#what-are-bad-records)
    +* [Can we use CarbonData on Standalone Spark Cluster?](#can-we-use-carbondata-on-standalone-spark-cluster)
    +* [What versions of Apache Spark are Compatible with CarbonData?](#what-versions-of-apache-spark-are-compatible-with-carbondata)
    +* [Can we Load Data from excel?](#can-we-load-data-from-excel)
    +* [How to enable Single Pass Data Loading?](#how-to-enable-single-pass-data-loading)
    +* [What is Single Pass Data Loading?](#what-is-single-pass-data-loading)
    +* [How to specify the data loading format for CarbonData ?](#how-to-specify-the-data-loading-format-for-carbondata)
    +* [How to resolve store location can’t be found?](#how-to-resolve-store-location-can-not-be-found)
    +* [What is carbon.lock.type?]()
    +* [How to enable Auto Compaction?](#how-to-enable-auto-compaction)
    +* [How to resolve Abstract Method Error?](#how-to-resolve-abstract-method-error)
    +* [Getting Exception on Creating a View](#getting-exception-on-creating-a-view)
    +* [Is CarbonData supported for Windows?](#is-carbondata-supported-for-windows)
    +* [How to handle Bad Records?](#how-to-handle-bad-records)
     
    -* **Getting Abstract method error**
    +## Can we preserve Segments from Compaction?
    +If you want to preserve number of segments from being compacted then you can set the property  **carbon.numberof.preserve.segments**  equal to the **value of number of segments to be preserved**.
     
    -    You need to specify the spark version while using Maven to build project.
    +Note : *No segments are preserved by Default.*
     
    -* **Getting NotImplementedException for subquery using IN and EXISTS**
    +## Can we disable horizontal compaction?
    +Yes, to disable horizontal compaction, set **carbon.horizontal.compaction.enable** to ``FALSE`` in carbon.properties file.
    --- End diff --
   
    I don't suggest adding the FAQ about disable horizontal compaction, users don't need to set the parameter and this can be controlled automatically by system.


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[qiuchenjian-2]

Github user PallaviSingh1992 commented on a diff in the pull request:

    https://github.com/apache/incubator-carbondata/pull/602#discussion_r102399607
 
    --- Diff: docs/faq.md ---
    @@ -18,30 +18,124 @@
     -->
     
     # FAQs
    -* **Auto Compaction not Working**
     
    -    The Property carbon.enable.auto.load.merge in carbon.properties need to be set to true.
    +* [Can we preserve Segments from Compaction?](#can-we-preserve-segments-from-compaction)
    +* [Can we disable horizontal compaction?](#can-we-disable-horizontal-compaction)
    +* [What is horizontal compaction?](#what-is-horizontal-compaction)
    +* [How to enable Compaction while data loading?](#how-to-enable-compaction-while-data-loading)
    +* [Where are Bad Records Stored in CarbonData?](#where-are-bad-records-stored-in-carbondata)
    +* [What are Bad Records?](#what-are-bad-records)
    +* [Can we use CarbonData on Standalone Spark Cluster?](#can-we-use-carbondata-on-standalone-spark-cluster)
    +* [What versions of Apache Spark are Compatible with CarbonData?](#what-versions-of-apache-spark-are-compatible-with-carbondata)
    +* [Can we Load Data from excel?](#can-we-load-data-from-excel)
    +* [How to enable Single Pass Data Loading?](#how-to-enable-single-pass-data-loading)
    +* [What is Single Pass Data Loading?](#what-is-single-pass-data-loading)
    +* [How to specify the data loading format for CarbonData ?](#how-to-specify-the-data-loading-format-for-carbondata)
    +* [How to resolve store location can’t be found?](#how-to-resolve-store-location-can-not-be-found)
    +* [What is carbon.lock.type?]()
    +* [How to enable Auto Compaction?](#how-to-enable-auto-compaction)
    +* [How to resolve Abstract Method Error?](#how-to-resolve-abstract-method-error)
    +* [Getting Exception on Creating a View](#getting-exception-on-creating-a-view)
    +* [Is CarbonData supported for Windows?](#is-carbondata-supported-for-windows)
    +* [How to handle Bad Records?](#how-to-handle-bad-records)
     
    -* **Getting Abstract method error**
    +## Can we preserve Segments from Compaction?
    +If you want to preserve number of segments from being compacted then you can set the property  **carbon.numberof.preserve.segments**  equal to the **value of number of segments to be preserved**.
     
    -    You need to specify the spark version while using Maven to build project.
    +Note : *No segments are preserved by Default.*
     
    -* **Getting NotImplementedException for subquery using IN and EXISTS**
    +## Can we disable horizontal compaction?
    +Yes, to disable horizontal compaction, set **carbon.horizontal.compaction.enable** to ``FALSE`` in carbon.properties file.
    --- End diff --
   
    @chenliang613 Hi, there are two faqs : 'Can we disable horizontal compaction?' and 'What is horizontal compaction?' related to the horizontal compaction, should we remove both of them?


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[qiuchenjian-2]

Github user PallaviSingh1992 closed the pull request at:

    https://github.com/apache/incubator-carbondata/pull/602


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