[jira] [Commented] (HBASE-15432) TableInputFormat - support multiple column families scan

2016-12-16 Thread Xuesen Liang (JIRA) 

[ 
https://issues.apache.org/jira/browse/HBASE-15432?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15756021#comment-15756021
 ] 

Xuesen Liang commented on HBASE-15432:
--

Succeed with command line {code}"-D hbase.mapreduce.scan.column.family=a,\ b  
tableA   /output_dir  ;  "{code}

but failed with {code}"-D hbase.mapreduce.scan.column.family=a, b  tableA   
/output_dir  ;  "{code}

> TableInputFormat - support multiple column families scan
> 
>
> Key: HBASE-15432
> URL: https://issues.apache.org/jira/browse/HBASE-15432
> Project: HBase
>  Issue Type: New Feature
>Affects Versions: 2.0.0, 0.98.16, 0.98.16.1
>Reporter: nirav patel
>Assignee: Xuesen Liang
> Fix For: 2.0.0
>
> Attachments: HBASE-15432.master.002.patch, 
> HBASE-15432.master.003.patch, HBASE-15432.master.patch
>
>
> Currently Hbase TableInputFormat class has SCAN_COLUMN_FAMILY and 
> SCAN_COLUMNS. SCAN_COLUMN_FAMILY can only scan single column family. If we 
> need to scan multiple column families from a table then we must use 
> SCAN_COLUMNS where we must provide both columns and column families which is 
> not a convenient. Can we have a SCAN_COLUMN_FAMILIES which supports scan of 
> multiple column families.



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[jira] [Commented] (HBASE-15432) TableInputFormat - support multiple column families scan

2016-12-16 Thread Ted Yu (JIRA) 

[ 
https://issues.apache.org/jira/browse/HBASE-15432?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15755988#comment-15755988
 ] 

Ted Yu commented on HBASE-15432:


You can pass "=a, b" using String[]
However, using command line, can you do the same ?

If so, mind showing me log from a live action ?

Thanks

> TableInputFormat - support multiple column families scan
> 
>
> Key: HBASE-15432
> URL: https://issues.apache.org/jira/browse/HBASE-15432
> Project: HBase
>  Issue Type: New Feature
>Affects Versions: 2.0.0, 0.98.16, 0.98.16.1
>Reporter: nirav patel
>Assignee: Xuesen Liang
> Fix For: 2.0.0
>
> Attachments: HBASE-15432.master.002.patch, 
> HBASE-15432.master.003.patch, HBASE-15432.master.patch
>
>
> Currently Hbase TableInputFormat class has SCAN_COLUMN_FAMILY and 
> SCAN_COLUMNS. SCAN_COLUMN_FAMILY can only scan single column family. If we 
> need to scan multiple column families from a table then we must use 
> SCAN_COLUMNS where we must provide both columns and column families which is 
> not a convenient. Can we have a SCAN_COLUMN_FAMILIES which supports scan of 
> multiple column families.



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[jira] [Commented] (HBASE-15432) TableInputFormat - support multiple column families scan

2016-12-16 Thread Xuesen Liang (JIRA) 

[ 
https://issues.apache.org/jira/browse/HBASE-15432?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15755980#comment-15755980
 ] 

Xuesen Liang commented on HBASE-15432:
--

Yes, the space is intentional. It's for testing that if user write whitespace, 
it still work fine.

Both "=a,   b" and "=a,b" are fine.


> TableInputFormat - support multiple column families scan
> 
>
> Key: HBASE-15432
> URL: https://issues.apache.org/jira/browse/HBASE-15432
> Project: HBase
>  Issue Type: New Feature
>Affects Versions: 2.0.0, 0.98.16, 0.98.16.1
>Reporter: nirav patel
>Assignee: Xuesen Liang
> Fix For: 2.0.0
>
> Attachments: HBASE-15432.master.002.patch, 
> HBASE-15432.master.003.patch, HBASE-15432.master.patch
>
>
> Currently Hbase TableInputFormat class has SCAN_COLUMN_FAMILY and 
> SCAN_COLUMNS. SCAN_COLUMN_FAMILY can only scan single column family. If we 
> need to scan multiple column families from a table then we must use 
> SCAN_COLUMNS where we must provide both columns and column families which is 
> not a convenient. Can we have a SCAN_COLUMN_FAMILIES which supports scan of 
> multiple column families.



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[jira] [Commented] (HBASE-15432) TableInputFormat - support multiple column families scan

2016-12-16 Thread Ted Yu (JIRA) 

[ 
https://issues.apache.org/jira/browse/HBASE-15432?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15755912#comment-15755912
 ] 

Ted Yu commented on HBASE-15432:


{code}
+  args = new String[] { "-D " + TableInputFormat.SCAN_COLUMN_FAMILY + "=a, 
b",
{code}
Is the space intentional ?
The space doesn't appear in usage.

> TableInputFormat - support multiple column families scan
> 
>
> Key: HBASE-15432
> URL: https://issues.apache.org/jira/browse/HBASE-15432
> Project: HBase
>  Issue Type: New Feature
>Affects Versions: 2.0.0, 0.98.16, 0.98.16.1
>Reporter: nirav patel
>Assignee: Xuesen Liang
> Fix For: 2.0.0
>
> Attachments: HBASE-15432.master.002.patch, 
> HBASE-15432.master.003.patch, HBASE-15432.master.patch
>
>
> Currently Hbase TableInputFormat class has SCAN_COLUMN_FAMILY and 
> SCAN_COLUMNS. SCAN_COLUMN_FAMILY can only scan single column family. If we 
> need to scan multiple column families from a table then we must use 
> SCAN_COLUMNS where we must provide both columns and column families which is 
> not a convenient. Can we have a SCAN_COLUMN_FAMILIES which supports scan of 
> multiple column families.



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[jira] [Commented] (HBASE-15432) TableInputFormat - support multiple column families scan

2016-12-16 Thread Xuesen Liang (JIRA) 

[ 
https://issues.apache.org/jira/browse/HBASE-15432?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15755871#comment-15755871
 ] 

Xuesen Liang commented on HBASE-15432:
--

Hi [~te...@apache.org], the unit test is passed. Can you review 
HBASE-15432.master.003.patch and commit it? Thanks~

> TableInputFormat - support multiple column families scan
> 
>
> Key: HBASE-15432
> URL: https://issues.apache.org/jira/browse/HBASE-15432
> Project: HBase
>  Issue Type: New Feature
>Affects Versions: 2.0.0, 0.98.16, 0.98.16.1
>Reporter: nirav patel
>Assignee: Xuesen Liang
> Fix For: 2.0.0
>
> Attachments: HBASE-15432.master.002.patch, 
> HBASE-15432.master.003.patch, HBASE-15432.master.patch
>
>
> Currently Hbase TableInputFormat class has SCAN_COLUMN_FAMILY and 
> SCAN_COLUMNS. SCAN_COLUMN_FAMILY can only scan single column family. If we 
> need to scan multiple column families from a table then we must use 
> SCAN_COLUMNS where we must provide both columns and column families which is 
> not a convenient. Can we have a SCAN_COLUMN_FAMILIES which supports scan of 
> multiple column families.



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[jira] [Commented] (HBASE-15432) TableInputFormat - support multiple column families scan

2016-12-16 Thread Hadoop QA (JIRA) 

[ 
https://issues.apache.org/jira/browse/HBASE-15432?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15755066#comment-15755066
 ] 

Hadoop QA commented on HBASE-15432:
---

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> TableInputFormat - support multiple column families scan
> 
>
> Key: HBASE-15432
> URL: https://issues.apache.org/jira/browse/HBASE-15432
> Project: HBase
>  Issue Type: New Feature
>Affects Versions: 2.0.0, 0.98.16, 0.98.16.1
>Reporter: nirav patel
>Assignee: Xuesen Liang
> Fix For: 2.0.0
>
> Attachments:

[jira] [Commented] (HBASE-15432) TableInputFormat - support multiple column families scan

2016-12-15 Thread Hadoop QA (JIRA) 

[ 
https://issues.apache.org/jira/browse/HBASE-15432?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15753294#comment-15753294
 ] 

Hadoop QA commented on HBASE-15432:
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> TableInputFormat - support multiple column families scan
>

[jira] [Commented] (HBASE-15432) TableInputFormat - support multiple column families scan

2016-12-15 Thread Hadoop QA (JIRA) 

[ 
https://issues.apache.org/jira/browse/HBASE-15432?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15751782#comment-15751782
 ] 

Hadoop QA commented on HBASE-15432:
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\\
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|| Reason || Tests ||
| Failed junit tests | hadoop.hbase.mapreduce.TestImportExport |
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 |
| JIRA Issue | HBASE-15432 |
| Optional Tests |  asflicense  javac  javadoc  unit  findbugs  hadoopcheck  
hbaseanti  checkstyle  compile  |
| uname | Linux 3947ecdbe38a 3.13.0-93-generic #140-Ubuntu SMP Mon Jul 18 
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> TableInputFormat - support multiple column families scan
> 
>
> Key:

[jira] [Commented] (HBASE-15432) TableInputFormat - support multiple column families scan

2016-12-13 Thread Xuesen Liang (JIRA) 

[ 
https://issues.apache.org/jira/browse/HBASE-15432?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15747517#comment-15747517
 ] 

Xuesen Liang commented on HBASE-15432:
--

How about to reuse 'SCAN_COLUMN_FAMILY'?

For example, the following code in 
org.apache.hadoop.hbase.mapreduce.TableInputFormat

{code}
if (conf.get(SCAN_COLUMN_FAMILY) != null) {
  scan.addFamily(Bytes.toBytes(conf.get(SCAN_COLUMN_FAMILY)));
}
{code}

can be replaced by

{code}
for (String cf : conf.getTrimmedStrings(SCAN_COLUMN_FAMILY)) {
  scan.addFamily(Bytes.toBytes(cf));
}
{code}

It is totally compatible.


> TableInputFormat - support multiple column families scan
> 
>
> Key: HBASE-15432
> URL: https://issues.apache.org/jira/browse/HBASE-15432
> Project: HBase
>  Issue Type: New Feature
>Affects Versions: 2.0.0, 0.98.16, 0.98.16.1
>Reporter: nirav patel
>
> Currently Hbase TableInputFormat class has SCAN_COLUMN_FAMILY and 
> SCAN_COLUMNS. SCAN_COLUMN_FAMILY can only scan single column family. If we 
> need to scan multiple column families from a table then we must use 
> SCAN_COLUMNS where we must provide both columns and column families which is 
> not a convenient. Can we have a SCAN_COLUMN_FAMILIES which supports scan of 
> multiple column families.



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[jira] [Commented] (HBASE-15432) TableInputFormat - support multiple column families scan

2016-12-13 Thread Xuesen Liang (JIRA) 

[ 
https://issues.apache.org/jira/browse/HBASE-15432?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15747519#comment-15747519
 ] 

Xuesen Liang commented on HBASE-15432:
--

How about to reuse 'SCAN_COLUMN_FAMILY'?

For example, the following code in 
org.apache.hadoop.hbase.mapreduce.TableInputFormat

{code}
if (conf.get(SCAN_COLUMN_FAMILY) != null) {
  scan.addFamily(Bytes.toBytes(conf.get(SCAN_COLUMN_FAMILY)));
}
{code}

can be replaced by

{code}
for (String cf : conf.getTrimmedStrings(SCAN_COLUMN_FAMILY)) {
  scan.addFamily(Bytes.toBytes(cf));
}
{code}

It is totally compatible.


> TableInputFormat - support multiple column families scan
> 
>
> Key: HBASE-15432
> URL: https://issues.apache.org/jira/browse/HBASE-15432
> Project: HBase
>  Issue Type: New Feature
>Affects Versions: 2.0.0, 0.98.16, 0.98.16.1
>Reporter: nirav patel
>
> Currently Hbase TableInputFormat class has SCAN_COLUMN_FAMILY and 
> SCAN_COLUMNS. SCAN_COLUMN_FAMILY can only scan single column family. If we 
> need to scan multiple column families from a table then we must use 
> SCAN_COLUMNS where we must provide both columns and column families which is 
> not a convenient. Can we have a SCAN_COLUMN_FAMILIES which supports scan of 
> multiple column families.



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(v6.3.4#6332)