Podling Report Reminder - November 2016

[johndament]

Dear podling,

This email was sent by an automated system on behalf of the Apache
Incubator PMC. It is an initial reminder to give you plenty of time to
prepare your quarterly board report.

The board meeting is scheduled for Wed, 16 November 2016, 10:30 am PDT.
The report for your podling will form a part of the Incubator PMC
report. The Incubator PMC requires your report to be submitted 2 weeks
before the board meeting, to allow sufficient time for review and
submission (Wed, November 02).

Please submit your report with sufficient time to allow the Incubator
PMC, and subsequently board members to review and digest. Again, the
very latest you should submit your report is 2 weeks prior to the board
meeting.

Thanks,

The Apache Incubator PMC

Submitting your Report

--

Your report should contain the following:

*   Your project name
*   A brief description of your project, which assumes no knowledge of
the project or necessarily of its field
*   A list of the three most important issues to address in the move
towards graduation.
*   Any issues that the Incubator PMC or ASF Board might wish/need to be
aware of
*   How has the community developed since the last report
*   How has the project developed since the last report.

This should be appended to the Incubator Wiki page at:

http://wiki.apache.org/incubator/November2016

Note: This is manually populated. You may need to wait a little before
this page is created from a template.

Mentors
---

Mentors should review reports for their project(s) and sign them off on
the Incubator wiki page. Signing off reports shows that you are
following the project - projects that are not signed may raise alarms
for the Incubator PMC.

Incubator PMC

[GitHub] incubator-carbondata pull request #262: [CARBONDATA-308] Use CarbonInputForm...

[QiangCai]

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

https://github.com/apache/incubator-carbondata/pull/262#discussion_r86058166
  
--- Diff: 
hadoop/src/main/java/org/apache/carbondata/hadoop/CarbonInputSplit.java ---
@@ -22,28 +22,44 @@
 import java.io.DataOutput;
 import java.io.IOException;
 import java.io.Serializable;
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.carbondata.core.carbon.datastore.block.BlockletInfos;
+import org.apache.carbondata.core.carbon.datastore.block.Distributable;
+import org.apache.carbondata.core.carbon.datastore.block.TableBlockInfo;
+import org.apache.carbondata.core.carbon.path.CarbonTablePath;
 
 import org.apache.hadoop.fs.Path;
 import org.apache.hadoop.io.Writable;
 import org.apache.hadoop.mapreduce.lib.input.FileSplit;
 
+
 /**
  * Carbon input split to allow distributed read of CarbonInputFormat.
  */
-public class CarbonInputSplit extends FileSplit implements Serializable, 
Writable {
+public class CarbonInputSplit extends FileSplit implements Distributable, 
Serializable, Writable {
 
   private static final long serialVersionUID = 3520344046772190207L;
   private String segmentId;
-  /**
+  public String taskId = "0";
+
+  /*
* Number of BlockLets in a block
*/
   private int numberOfBlocklets = 0;
 
-  public CarbonInputSplit() {
-super(null, 0, 0, new String[0]);
+  public  CarbonInputSplit() {
   }
 
-  public CarbonInputSplit(String segmentId, Path path, long start, long 
length,
+  private void parserPath(Path path) {
--- End diff --

please use CarbonTablePath.DataFileUtil.getTaskNo


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[GitHub] incubator-carbondata pull request #262: [CARBONDATA-308] Use CarbonInputForm...

[QiangCai]

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

https://github.com/apache/incubator-carbondata/pull/262#discussion_r86058188
  
--- Diff: 
hadoop/src/main/java/org/apache/carbondata/hadoop/CarbonInputSplit.java ---
@@ -22,28 +22,44 @@
 import java.io.DataOutput;
 import java.io.IOException;
 import java.io.Serializable;
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.carbondata.core.carbon.datastore.block.BlockletInfos;
+import org.apache.carbondata.core.carbon.datastore.block.Distributable;
+import org.apache.carbondata.core.carbon.datastore.block.TableBlockInfo;
+import org.apache.carbondata.core.carbon.path.CarbonTablePath;
 
 import org.apache.hadoop.fs.Path;
 import org.apache.hadoop.io.Writable;
 import org.apache.hadoop.mapreduce.lib.input.FileSplit;
 
+
 /**
  * Carbon input split to allow distributed read of CarbonInputFormat.
  */
-public class CarbonInputSplit extends FileSplit implements Serializable, 
Writable {
+public class CarbonInputSplit extends FileSplit implements Distributable, 
Serializable, Writable {
 
   private static final long serialVersionUID = 3520344046772190207L;
   private String segmentId;
-  /**
+  public String taskId = "0";
+
+  /*
* Number of BlockLets in a block
*/
   private int numberOfBlocklets = 0;
 
-  public CarbonInputSplit() {
-super(null, 0, 0, new String[0]);
+  public  CarbonInputSplit() {
   }
 
-  public CarbonInputSplit(String segmentId, Path path, long start, long 
length,
+  private void parserPath(Path path) {
+String[] nameParts = path.getName().split("-");
+if (nameParts != null && nameParts.length >= 3) {
+  this.taskId = nameParts[2];
+}
+  }
+
+  private CarbonInputSplit(String segmentId, Path path, long start, long 
length,
--- End diff --

please initialize taskId


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[GitHub] incubator-carbondata pull request #272: [CARBONDATA-353]Update doc for datef...

[lion-x]

Github user lion-x commented on a diff in the pull request:

https://github.com/apache/incubator-carbondata/pull/272#discussion_r86058866
  
--- Diff: docs/DML-Operations-on-Carbon.md ---
@@ -91,12 +91,17 @@ Following are the options that can be used in load data:
 ```ruby
 OPTIONS('ALL_DICTIONARY_PATH'='/opt/alldictionary/data.dictionary')
 ```
-- **COLUMNDICT:** dictionary file path for single column.
+- **COLUMNDICT:** Dictionary file path for each column.
 
 ```ruby
 OPTIONS('COLUMNDICT'='column1:dictionaryFilePath1, 
column2:dictionaryFilePath2')
 ```
 Note: ALL_DICTIONARY_PATH and COLUMNDICT can't be used together.
+- **DATEFORMAT:** Date format for each column.
+
+```ruby
+OPTIONS('DATEFORMAT'='column1:dateFormat1, column2:dateFormat2')
--- End diff --

I add a note, ref to the JAVA SimpleDateFormat Class Doc. It provides more 
details.


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[GitHub] incubator-carbondata pull request #272: [CARBONDATA-353]Update doc for datef...

[lion-x]

Github user lion-x commented on a diff in the pull request:

https://github.com/apache/incubator-carbondata/pull/272#discussion_r86058765
  
--- Diff: docs/DML-Operations-on-Carbon.md ---
@@ -91,12 +91,17 @@ Following are the options that can be used in load data:
 ```ruby
 OPTIONS('ALL_DICTIONARY_PATH'='/opt/alldictionary/data.dictionary')
 ```
-- **COLUMNDICT:** dictionary file path for single column.
+- **COLUMNDICT:** Dictionary file path for each column.
 
 ```ruby
 OPTIONS('COLUMNDICT'='column1:dictionaryFilePath1, 
column2:dictionaryFilePath2')
 ```
 Note: ALL_DICTIONARY_PATH and COLUMNDICT can't be used together.
+- **DATEFORMAT:** Date format for each column.
--- End diff --

updated


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[GitHub] incubator-carbondata pull request #272: [CARBONDATA-353]Update doc for datef...

[lion-x]

Github user lion-x commented on a diff in the pull request:

https://github.com/apache/incubator-carbondata/pull/272#discussion_r86058742
  
--- Diff: docs/DML-Operations-on-Carbon.md ---
@@ -91,12 +91,17 @@ Following are the options that can be used in load data:
 ```ruby
 OPTIONS('ALL_DICTIONARY_PATH'='/opt/alldictionary/data.dictionary')
 ```
-- **COLUMNDICT:** dictionary file path for single column.
+- **COLUMNDICT:** Dictionary file path for each column.
--- End diff --

updated


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[GitHub] incubator-carbondata pull request #274: [CARBONDATA-355] Remove unnecessary ...

[Hexiaoqiao]

GitHub user Hexiaoqiao opened a pull request:

https://github.com/apache/incubator-carbondata/pull/274

[CARBONDATA-355] Remove unnecessary method argument columnIdentifier of 
PathService.getCarbonTablePath

 It is not necessary pass argument #columnIdentifier when get table path 
through PathService.getCarbonTablePath.

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

$ git pull https://github.com/Hexiaoqiao/incubator-carbondata carbon-fix

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

https://github.com/apache/incubator-carbondata/pull/274.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 #274






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[jira] [Created] (CARBONDATA-355) Remove unnecessary method argument columnIdentifier of PathService.getCarbonTablePath

[He Xiaoqiao (JIRA)]

He Xiaoqiao created CARBONDATA-355:
--

 Summary: Remove unnecessary method argument columnIdentifier of 
PathService.getCarbonTablePath
 Key: CARBONDATA-355
 URL: https://issues.apache.org/jira/browse/CARBONDATA-355
 Project: CarbonData
  Issue Type: Improvement
  Components: core
Affects Versions: 0.2.0-incubating
Reporter: He Xiaoqiao
Assignee: He Xiaoqiao
Priority: Minor


Remove one of method arguments of PathService#getCarbonTablePath since it is 
not necessary pass columnIdentifier when get table path.



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Re: [Discussion] Please vote and comment for carbon data file format change

[Kumar Vishal]

* Hi Xiaoqiao He*,

Please find the *attachment.*

*-Regards*
*Kumar Vishal*

On Tue, Nov 1, 2016 at 9:27 PM, Xiaoqiao He  wrote:

> Hi Kumar Vishal,
>
> I couldn't get Fig. of the file format, could you re-upload them?
> Thanks.
>
> Best Regards
>
> On Tue, Nov 1, 2016 at 7:12 PM, Kumar Vishal 
> wrote:
>
> >
> > ​Hello All,
> >
> > Improving carbon first time query performance
> >
> > Reason:
> > 1. As file system cache is cleared file reading will make it slower to
> > read and cache
> > 2. In first time query carbon will have to read the footer from file data
> > file to form the btree
> > 3. Carbon reading more footer data than its required(data chunk)
> > 4. There are lots of random seek is happening in carbon as column
> > data(data page, rle, inverted index) are not stored together.
> >
> > Solution:
> > 1. Improve block loading time. This can be done by removing data chunk
> > from blockletInfo and storing only offset and length of data chunk
> > 2. compress presence meta bitset stored for null values for measure
> column
> > using snappy
> > 3. Store the metadata and data of a column together and read together
> this
> > reduces random seek and improve IO
> >
> > For this I am planing to change the carbondata thrift format
> >
> > *Old format*
> >
> >
> >
> > *New format*
> >
> >
> >
> > *​*
> >
> > Please vote and comment for this new format change
> >
> > -Regards
> > Kumar Vishal
> >
> >
> >
> >
>

[GitHub] incubator-carbondata pull request #272: [CARBONDATA-353]Update doc for datef...

[jackylk]

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

https://github.com/apache/incubator-carbondata/pull/272#discussion_r85958878
  
--- Diff: docs/DML-Operations-on-Carbon.md ---
@@ -91,12 +91,17 @@ Following are the options that can be used in load data:
 ```ruby
 OPTIONS('ALL_DICTIONARY_PATH'='/opt/alldictionary/data.dictionary')
 ```
-- **COLUMNDICT:** dictionary file path for single column.
+- **COLUMNDICT:** Dictionary file path for each column.
--- End diff --

change `each` to `specified`


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Re: [Discussion] Please vote and comment for carbon data file format change

[Xiaoqiao He]

Hi Kumar Vishal,

I couldn't get Fig. of the file format, could you re-upload them?
Thanks.

Best Regards

On Tue, Nov 1, 2016 at 7:12 PM, Kumar Vishal 
wrote:

>
> ​Hello All,
>
> Improving carbon first time query performance
>
> Reason:
> 1. As file system cache is cleared file reading will make it slower to
> read and cache
> 2. In first time query carbon will have to read the footer from file data
> file to form the btree
> 3. Carbon reading more footer data than its required(data chunk)
> 4. There are lots of random seek is happening in carbon as column
> data(data page, rle, inverted index) are not stored together.
>
> Solution:
> 1. Improve block loading time. This can be done by removing data chunk
> from blockletInfo and storing only offset and length of data chunk
> 2. compress presence meta bitset stored for null values for measure column
> using snappy
> 3. Store the metadata and data of a column together and read together this
> reduces random seek and improve IO
>
> For this I am planing to change the carbondata thrift format
>
> *Old format*
>
>
>
> *New format*
>
>
>
> *​*
>
> Please vote and comment for this new format change
>
> -Regards
> Kumar Vishal
>
>
>
>

[GitHub] incubator-carbondata pull request #200: [CARBONDATA-276]add trim property fo...

[sujith71955]

Github user sujith71955 commented on a diff in the pull request:

https://github.com/apache/incubator-carbondata/pull/200#discussion_r85957010
  
--- Diff: 
processing/src/main/java/org/apache/carbondata/processing/graphgenerator/GraphGenerator.java
 ---
@@ -998,4 +1000,24 @@ private void 
prepareIsUseInvertedIndex(List dims,
 graphConfig.setIsUseInvertedIndex(
 isUseInvertedIndexList.toArray(new 
Boolean[isUseInvertedIndexList.size()]));
   }
+
+  /**
+   * Preparing the boolean [] to map whether the dimension use trim or not.
+   *
+   * @param dims
+   * @param graphConfig
+   */
+  private void prepareIsUseTrim(List dims,
+GraphConfigurationInfo graphConfig) {
+List isUseTrimList = new ArrayList();
+for (CarbonDimension dimension : dims) {
+  if (dimension.isUseTrim()) {
--- End diff --

Can we add this trim option as property of the column, i mean inside a 
column property rather than setting directly as CarbonDimension property, 
Already in CarbonColumn there is a property map which holds column related 
properties, i think we can use that, please check the feasibility.


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[GitHub] incubator-carbondata pull request #200: [CARBONDATA-276]add trim property fo...

[sujith71955]

Github user sujith71955 commented on a diff in the pull request:

https://github.com/apache/incubator-carbondata/pull/200#discussion_r85957803
  
--- Diff: 
processing/src/main/java/org/apache/carbondata/processing/surrogatekeysgenerator/csvbased/CarbonCSVBasedSeqGenStep.java
 ---
@@ -472,6 +475,7 @@ public boolean processRow(StepMetaInterface smi, 
StepDataInterface sdi) throws K
   break;
   }
 }
+<<< HEAD
--- End diff --

is this file is having any conflict?


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[GitHub] incubator-carbondata pull request #200: [CARBONDATA-276]add trim property fo...

[sujith71955]

Github user sujith71955 commented on a diff in the pull request:

https://github.com/apache/incubator-carbondata/pull/200#discussion_r85957411
  
--- Diff: 
processing/src/main/java/org/apache/carbondata/processing/surrogatekeysgenerator/csvbased/CarbonCSVBasedSeqGenMeta.java
 ---
@@ -1694,5 +1699,19 @@ public void setTableOption(String tableOption) {
   public TableOptionWrapper getTableOptionWrapper() {
 return tableOptionWrapper;
   }
+
+  public String getIsUseTrim() {
+return isUseTrim;
+  }
+
+  public void setIsUseTrim(Boolean[] isUseTrim) {
+for (Boolean flag: isUseTrim) {
+  if (flag) {
+this.isUseTrim += "T";
--- End diff --

Use  TRUE/FALSE for better readability


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[GitHub] incubator-carbondata pull request #263: [CARBONDATA-2][WIP] Data load integr...

[ravipesala]

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

https://github.com/apache/incubator-carbondata/pull/263#discussion_r85923089
  
--- Diff: 
integration/spark/src/main/java/org/apache/carbondata/spark/load/CarbonLoaderUtil.java
 ---
@@ -213,6 +224,64 @@ public static void executeGraph(CarbonLoadModel 
loadModel, String storeLocation,
 info, loadModel.getPartitionId(), 
loadModel.getCarbonDataLoadSchema());
   }
 
+  public static void executeNewDataLoad(CarbonLoadModel loadModel, String 
storeLocation,
+  String hdfsStoreLocation, RecordReader[] recordReaders)
+  throws Exception {
+if (!new File(storeLocation).mkdirs()) {
+  LOGGER.error("Error while creating the temp store path: " + 
storeLocation);
+}
+CarbonDataLoadConfiguration configuration = new 
CarbonDataLoadConfiguration();
+String databaseName = loadModel.getDatabaseName();
+String tableName = loadModel.getTableName();
+String tempLocationKey = databaseName + 
CarbonCommonConstants.UNDERSCORE + tableName
++ CarbonCommonConstants.UNDERSCORE + loadModel.getTaskNo();
+CarbonProperties.getInstance().addProperty(tempLocationKey, 
storeLocation);
+CarbonProperties.getInstance()
+.addProperty(CarbonCommonConstants.STORE_LOCATION_HDFS, 
hdfsStoreLocation);
+// CarbonProperties.getInstance().addProperty("store_output_location", 
outPutLoc);
+CarbonProperties.getInstance().addProperty("send.signal.load", 
"false");
+
+CarbonTable carbonTable = 
loadModel.getCarbonDataLoadSchema().getCarbonTable();
+AbsoluteTableIdentifier identifier =
+carbonTable.getAbsoluteTableIdentifier();
+configuration.setTableIdentifier(identifier);
+String csvHeader = loadModel.getCsvHeader();
+if (csvHeader != null && !csvHeader.isEmpty()) {
+  
configuration.setHeader(CarbonDataProcessorUtil.getColumnFields(csvHeader, 
","));
+} else {
+  CarbonFile csvFile =
+  
CarbonDataProcessorUtil.getCsvFileToRead(loadModel.getFactFilesToProcess().get(0));
+  configuration
+  .setHeader(CarbonDataProcessorUtil.getFileHeader(csvFile, 
loadModel.getCsvDelimiter()));
+}
+
+configuration.setPartitionId(loadModel.getPartitionId());
+configuration.setSegmentId(loadModel.getSegmentId());
+configuration.setTaskNo(loadModel.getTaskNo());
+
configuration.setDataLoadProperty(DataLoadProcessorConstants.COMPLEX_DELIMITERS,
+new String[] { loadModel.getComplexDelimiterLevel1(),
+loadModel.getComplexDelimiterLevel2() });
+List dimensions =
+
carbonTable.getDimensionByTableName(carbonTable.getFactTableName());
+List measures =
+carbonTable.getMeasureByTableName(carbonTable.getFactTableName());
+DataField[] dataFields = new DataField[dimensions.size() + 
measures.size()];
+
+int i = 0;
+for (CarbonColumn column : dimensions) {
+  dataFields[i++] = new DataField(column);
+}
+for (CarbonColumn column : measures) {
+  dataFields[i++] = new DataField(column);
+}
+Iterator[] iterators = new RecordReaderIterator[recordReaders.length];
+configuration.setDataFields(dataFields);
+for (int j = 0; j < recordReaders.length; j++) {
+  iterators[j] = new RecordReaderIterator(recordReaders[j]);
+}
+new DataLoadProcessExecutor().execute(configuration, iterators);
--- End diff --

yes, we can use but here it is little customized api to take list of  
iterators/recordreaders to process parallely.


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[Discussion] Please vote and comment for carbon data file format change

[Kumar Vishal]

​Hello All,

Improving carbon first time query performance

Reason:
1. As file system cache is cleared file reading will make it slower to read
and cache
2. In first time query carbon will have to read the footer from file data
file to form the btree
3. Carbon reading more footer data than its required(data chunk)
4. There are lots of random seek is happening in carbon as column data(data
page, rle, inverted index) are not stored together.

Solution:
1. Improve block loading time. This can be done by removing data chunk from
blockletInfo and storing only offset and length of data chunk
2. compress presence meta bitset stored for null values for measure column
using snappy
3. Store the metadata and data of a column together and read together this
reduces random seek and improve IO

For this I am planing to change the carbondata thrift format

*Old format*



*New format*



*​*

Please vote and comment for this new format change

-Regards
Kumar Vishal

[jira] [Created] (CARBONDATA-354) Query execute successfully even not argument given in count function

[Prabhat Kashyap (JIRA)]

Prabhat Kashyap created CARBONDATA-354:
--

 Summary: Query execute successfully even not argument given in 
count function
 Key: CARBONDATA-354
 URL: https://issues.apache.org/jira/browse/CARBONDATA-354
 Project: CarbonData
  Issue Type: Bug
Reporter: Prabhat Kashyap
Priority: Minor


When I am executing following command:
select count() from tableName;

It gave me no error and execute successfully but it gives following exception 
when I execute the same in Hive:

FAILED: UDFArgumentException Argument expected



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Re: [ANN] Kumar Vishal as new CarbonData committer

[Kumar Vishal]

Dear Jean,
  Thanks for this opportunity.

-Regards
Kumar Vishal

On Nov 1, 2016 11:53, "Jean-Baptiste Onofré"  wrote:

> Hi all,
>
> I'm pleased to announce that the PPMC has invited Kumar Vishal as new
> CarbonData committer, and the invite has been accepted !
>
> Congrats to Kumar and welcome aboard.
>
> Regards
> JB
> --
> Jean-Baptiste Onofré
> jbono...@apache.org
> http://blog.nanthrax.net
> Talend - http://www.talend.com
>

Multiple arguments in count function.

[prabhatkashyap]

I am able to use multiple column name and even asterisk with columns in count
function. Even though it is giving me correct output but I think it should
not be allowed.



As the same queries give error when executed in HIVE. 

Please confirm.



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Re: [ANN] Kumar Vishal as new CarbonData committer

[Liang Chen]

Hi Kumar Vishal

Congrats to you and welcome aboard!

Regards
Liang

2016-11-01 14:23 GMT+08:00 Jean-Baptiste Onofré :

> Hi all,
>
> I'm pleased to announce that the PPMC has invited Kumar Vishal as new
> CarbonData committer, and the invite has been accepted !
>
> Congrats to Kumar and welcome aboard.
>
> Regards
> JB
> --
> Jean-Baptiste Onofré
> jbono...@apache.org
> http://blog.nanthrax.net
> Talend - http://www.talend.com
>



-- 

Regards
Liang

Re: No error on executing 'IN' operator without specifying any columnname

[prabhatkashyap]

When ever I'm trying to run following command in HIVE:

it executes normally in HIVE, but the same query gives the following error
in CARBONDATA :



Please confirm is it Carbon Data bug or Spark one. 



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[ANN] Kumar Vishal as new CarbonData committer

[Jean-Baptiste Onofré]

Hi all,

I'm pleased to announce that the PPMC has invited Kumar Vishal as new 
CarbonData committer, and the invite has been accepted !


Congrats to Kumar and welcome aboard.

Regards
JB
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Jean-Baptiste Onofré
jbono...@apache.org
http://blog.nanthrax.net
Talend - http://www.talend.com