[jira] [Updated] (HBASE-11990) Make setting the start and stop row for a specific prefix easier
[
https://issues.apache.org/jira/browse/HBASE-11990?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Niels Basjes updated HBASE-11990:
-
Status: Open (was: Patch Available)
Make setting the start and stop row for a specific prefix easier
Key: HBASE-11990
URL: https://issues.apache.org/jira/browse/HBASE-11990
Project: HBase
Issue Type: New Feature
Components: Client
Reporter: Niels Basjes
Attachments: 11990v4.txt, HBASE-11990-20140916-v2.patch,
HBASE-11990-20140916-v3.patch, HBASE-11990-20140916-v5.patch,
HBASE-11990-20140916-v6.patch, HBASE-11990-20140916.patch,
HBASE-11990-20140917-v7.patch, HBASE-11990-20140919-v8.patch,
HBASE-11990-20140921-v9.patch, HBASE-11990-20140923-v10.patch,
HBASE-11990-20140923-v10.patch
If you want to set a scan from your application to scan for a specific row
prefix this is actually quite hard.
As described in several places you can set the startRow to the prefix; yet
the stopRow should be set to the prefix '+1'
If the prefix 'ASCII' put into a byte[] then this is easy because you can
simply increment the last byte of the array.
But if your application uses real binary rowids you may run into the scenario
that your prefix is something like
{code}{ 0x12, 0x23, 0xFF, 0xFF }{code} Then the increment should be {code}{
0x12, 0x24 }{code}
I have prepared a proposed patch that makes setting these values correctly a
lot easier.
--
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[jira] [Updated] (HBASE-11990) Make setting the start and stop row for a specific prefix easier
[
https://issues.apache.org/jira/browse/HBASE-11990?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Niels Basjes updated HBASE-11990:
-
Status: Patch Available (was: Open)
Make setting the start and stop row for a specific prefix easier
Key: HBASE-11990
URL: https://issues.apache.org/jira/browse/HBASE-11990
Project: HBase
Issue Type: New Feature
Components: Client
Reporter: Niels Basjes
Attachments: 11990v4.txt, HBASE-11990-20140916-v2.patch,
HBASE-11990-20140916-v3.patch, HBASE-11990-20140916-v5.patch,
HBASE-11990-20140916-v6.patch, HBASE-11990-20140916.patch,
HBASE-11990-20140917-v7.patch, HBASE-11990-20140919-v8.patch,
HBASE-11990-20140921-v9.patch, HBASE-11990-20140923-v10.patch,
HBASE-11990-20140923-v10.patch, HBASE-11990-20141009-v11.patch
If you want to set a scan from your application to scan for a specific row
prefix this is actually quite hard.
As described in several places you can set the startRow to the prefix; yet
the stopRow should be set to the prefix '+1'
If the prefix 'ASCII' put into a byte[] then this is easy because you can
simply increment the last byte of the array.
But if your application uses real binary rowids you may run into the scenario
that your prefix is something like
{code}{ 0x12, 0x23, 0xFF, 0xFF }{code} Then the increment should be {code}{
0x12, 0x24 }{code}
I have prepared a proposed patch that makes setting these values correctly a
lot easier.
--
This message was sent by Atlassian JIRA
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[jira] [Updated] (HBASE-11990) Make setting the start and stop row for a specific prefix easier
[
https://issues.apache.org/jira/browse/HBASE-11990?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Niels Basjes updated HBASE-11990:
-
Attachment: HBASE-11990-20141009-v11.patch
The same as patch v10 but this one does cleanly apply in todays tree.
Make setting the start and stop row for a specific prefix easier
Key: HBASE-11990
URL: https://issues.apache.org/jira/browse/HBASE-11990
Project: HBase
Issue Type: New Feature
Components: Client
Reporter: Niels Basjes
Attachments: 11990v4.txt, HBASE-11990-20140916-v2.patch,
HBASE-11990-20140916-v3.patch, HBASE-11990-20140916-v5.patch,
HBASE-11990-20140916-v6.patch, HBASE-11990-20140916.patch,
HBASE-11990-20140917-v7.patch, HBASE-11990-20140919-v8.patch,
HBASE-11990-20140921-v9.patch, HBASE-11990-20140923-v10.patch,
HBASE-11990-20140923-v10.patch, HBASE-11990-20141009-v11.patch
If you want to set a scan from your application to scan for a specific row
prefix this is actually quite hard.
As described in several places you can set the startRow to the prefix; yet
the stopRow should be set to the prefix '+1'
If the prefix 'ASCII' put into a byte[] then this is easy because you can
simply increment the last byte of the array.
But if your application uses real binary rowids you may run into the scenario
that your prefix is something like
{code}{ 0x12, 0x23, 0xFF, 0xFF }{code} Then the increment should be {code}{
0x12, 0x24 }{code}
I have prepared a proposed patch that makes setting these values correctly a
lot easier.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
[jira] [Updated] (HBASE-11990) Make setting the start and stop row for a specific prefix easier
[
https://issues.apache.org/jira/browse/HBASE-11990?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
stack updated HBASE-11990:
--
Resolution: Fixed
Fix Version/s: 0.99.1
2.0.0
Release Note: Added new utility method, setRowPrefixFilter, to Scan to
easily scan for a specific row prefix (was: Added new method to easily scan
for a specific row prefix)
Hadoop Flags: Reviewed
Status: Resolved (was: Patch Available)
Committed to branch-1+ Thanks for the patch (and persistence) [~nielsbasjes]
JIRA is acting up so can't add you as a contributor just yet... will try again
later and assign you this issue.
Make setting the start and stop row for a specific prefix easier
Key: HBASE-11990
URL: https://issues.apache.org/jira/browse/HBASE-11990
Project: HBase
Issue Type: New Feature
Components: Client
Reporter: Niels Basjes
Fix For: 2.0.0, 0.99.1
Attachments: 11990v4.txt, HBASE-11990-20140916-v2.patch,
HBASE-11990-20140916-v3.patch, HBASE-11990-20140916-v5.patch,
HBASE-11990-20140916-v6.patch, HBASE-11990-20140916.patch,
HBASE-11990-20140917-v7.patch, HBASE-11990-20140919-v8.patch,
HBASE-11990-20140921-v9.patch, HBASE-11990-20140923-v10.patch,
HBASE-11990-20140923-v10.patch, HBASE-11990-20141009-v11.patch
If you want to set a scan from your application to scan for a specific row
prefix this is actually quite hard.
As described in several places you can set the startRow to the prefix; yet
the stopRow should be set to the prefix '+1'
If the prefix 'ASCII' put into a byte[] then this is easy because you can
simply increment the last byte of the array.
But if your application uses real binary rowids you may run into the scenario
that your prefix is something like
{code}{ 0x12, 0x23, 0xFF, 0xFF }{code} Then the increment should be {code}{
0x12, 0x24 }{code}
I have prepared a proposed patch that makes setting these values correctly a
lot easier.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
[jira] [Updated] (HBASE-11990) Make setting the start and stop row for a specific prefix easier
[
https://issues.apache.org/jira/browse/HBASE-11990?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
stack updated HBASE-11990:
--
Attachment: HBASE-11990-20140923-v10.patch
Retry to see if still applies and to see if any issues now tests have been
stabilized (mostly)
Make setting the start and stop row for a specific prefix easier
Key: HBASE-11990
URL: https://issues.apache.org/jira/browse/HBASE-11990
Project: HBase
Issue Type: New Feature
Components: Client
Reporter: Niels Basjes
Attachments: 11990v4.txt, HBASE-11990-20140916-v2.patch,
HBASE-11990-20140916-v3.patch, HBASE-11990-20140916-v5.patch,
HBASE-11990-20140916-v6.patch, HBASE-11990-20140916.patch,
HBASE-11990-20140917-v7.patch, HBASE-11990-20140919-v8.patch,
HBASE-11990-20140921-v9.patch, HBASE-11990-20140923-v10.patch,
HBASE-11990-20140923-v10.patch
If you want to set a scan from your application to scan for a specific row
prefix this is actually quite hard.
As described in several places you can set the startRow to the prefix; yet
the stopRow should be set to the prefix '+1'
If the prefix 'ASCII' put into a byte[] then this is easy because you can
simply increment the last byte of the array.
But if your application uses real binary rowids you may run into the scenario
that your prefix is something like
{code}{ 0x12, 0x23, 0xFF, 0xFF }{code} Then the increment should be {code}{
0x12, 0x24 }{code}
I have prepared a proposed patch that makes setting these values correctly a
lot easier.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
[jira] [Updated] (HBASE-11990) Make setting the start and stop row for a specific prefix easier
[
https://issues.apache.org/jira/browse/HBASE-11990?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Niels Basjes updated HBASE-11990:
-
Status: Open (was: Patch Available)
Make setting the start and stop row for a specific prefix easier
Key: HBASE-11990
URL: https://issues.apache.org/jira/browse/HBASE-11990
Project: HBase
Issue Type: New Feature
Components: Client
Reporter: Niels Basjes
Attachments: 11990v4.txt, HBASE-11990-20140916-v2.patch,
HBASE-11990-20140916-v3.patch, HBASE-11990-20140916-v5.patch,
HBASE-11990-20140916-v6.patch, HBASE-11990-20140916.patch,
HBASE-11990-20140917-v7.patch, HBASE-11990-20140919-v8.patch,
HBASE-11990-20140921-v9.patch, HBASE-11990-20140923-v10.patch
If you want to set a scan from your application to scan for a specific row
prefix this is actually quite hard.
As described in several places you can set the startRow to the prefix; yet
the stopRow should be set to the prefix '+1'
If the prefix 'ASCII' put into a byte[] then this is easy because you can
simply increment the last byte of the array.
But if your application uses real binary rowids you may run into the scenario
that your prefix is something like
{code}{ 0x12, 0x23, 0xFF, 0xFF }{code} Then the increment should be {code}{
0x12, 0x24 }{code}
I have prepared a proposed patch that makes setting these values correctly a
lot easier.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
[jira] [Updated] (HBASE-11990) Make setting the start and stop row for a specific prefix easier
[
https://issues.apache.org/jira/browse/HBASE-11990?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Niels Basjes updated HBASE-11990:
-
Status: Patch Available (was: Open)
Make setting the start and stop row for a specific prefix easier
Key: HBASE-11990
URL: https://issues.apache.org/jira/browse/HBASE-11990
Project: HBase
Issue Type: New Feature
Components: Client
Reporter: Niels Basjes
Attachments: 11990v4.txt, HBASE-11990-20140916-v2.patch,
HBASE-11990-20140916-v3.patch, HBASE-11990-20140916-v5.patch,
HBASE-11990-20140916-v6.patch, HBASE-11990-20140916.patch,
HBASE-11990-20140917-v7.patch, HBASE-11990-20140919-v8.patch,
HBASE-11990-20140921-v9.patch, HBASE-11990-20140923-v10.patch
If you want to set a scan from your application to scan for a specific row
prefix this is actually quite hard.
As described in several places you can set the startRow to the prefix; yet
the stopRow should be set to the prefix '+1'
If the prefix 'ASCII' put into a byte[] then this is easy because you can
simply increment the last byte of the array.
But if your application uses real binary rowids you may run into the scenario
that your prefix is something like
{code}{ 0x12, 0x23, 0xFF, 0xFF }{code} Then the increment should be {code}{
0x12, 0x24 }{code}
I have prepared a proposed patch that makes setting these values correctly a
lot easier.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
[jira] [Updated] (HBASE-11990) Make setting the start and stop row for a specific prefix easier
[
https://issues.apache.org/jira/browse/HBASE-11990?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Jean-Marc Spaggiari updated HBASE-11990:
Status: Open (was: Patch Available)
Make setting the start and stop row for a specific prefix easier
Key: HBASE-11990
URL: https://issues.apache.org/jira/browse/HBASE-11990
Project: HBase
Issue Type: New Feature
Components: Client
Reporter: Niels Basjes
Attachments: 11990v4.txt, HBASE-11990-20140916-v2.patch,
HBASE-11990-20140916-v3.patch, HBASE-11990-20140916-v5.patch,
HBASE-11990-20140916-v6.patch, HBASE-11990-20140916.patch,
HBASE-11990-20140917-v7.patch, HBASE-11990-20140919-v8.patch,
HBASE-11990-20140921-v9.patch, HBASE-11990-20140923-v10.patch
If you want to set a scan from your application to scan for a specific row
prefix this is actually quite hard.
As described in several places you can set the startRow to the prefix; yet
the stopRow should be set to the prefix '+1'
If the prefix 'ASCII' put into a byte[] then this is easy because you can
simply increment the last byte of the array.
But if your application uses real binary rowids you may run into the scenario
that your prefix is something like
{code}{ 0x12, 0x23, 0xFF, 0xFF }{code} Then the increment should be {code}{
0x12, 0x24 }{code}
I have prepared a proposed patch that makes setting these values correctly a
lot easier.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
[jira] [Updated] (HBASE-11990) Make setting the start and stop row for a specific prefix easier
[
https://issues.apache.org/jira/browse/HBASE-11990?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Jean-Marc Spaggiari updated HBASE-11990:
Status: Patch Available (was: Open)
I don't think it is related. Triggering Jenkins again to see...
Make setting the start and stop row for a specific prefix easier
Key: HBASE-11990
URL: https://issues.apache.org/jira/browse/HBASE-11990
Project: HBase
Issue Type: New Feature
Components: Client
Reporter: Niels Basjes
Attachments: 11990v4.txt, HBASE-11990-20140916-v2.patch,
HBASE-11990-20140916-v3.patch, HBASE-11990-20140916-v5.patch,
HBASE-11990-20140916-v6.patch, HBASE-11990-20140916.patch,
HBASE-11990-20140917-v7.patch, HBASE-11990-20140919-v8.patch,
HBASE-11990-20140921-v9.patch, HBASE-11990-20140923-v10.patch
If you want to set a scan from your application to scan for a specific row
prefix this is actually quite hard.
As described in several places you can set the startRow to the prefix; yet
the stopRow should be set to the prefix '+1'
If the prefix 'ASCII' put into a byte[] then this is easy because you can
simply increment the last byte of the array.
But if your application uses real binary rowids you may run into the scenario
that your prefix is something like
{code}{ 0x12, 0x23, 0xFF, 0xFF }{code} Then the increment should be {code}{
0x12, 0x24 }{code}
I have prepared a proposed patch that makes setting these values correctly a
lot easier.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
[jira] [Updated] (HBASE-11990) Make setting the start and stop row for a specific prefix easier
[
https://issues.apache.org/jira/browse/HBASE-11990?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Niels Basjes updated HBASE-11990:
-
Status: Open (was: Patch Available)
Make setting the start and stop row for a specific prefix easier
Key: HBASE-11990
URL: https://issues.apache.org/jira/browse/HBASE-11990
Project: HBase
Issue Type: New Feature
Components: Client
Reporter: Niels Basjes
Attachments: 11990v4.txt, HBASE-11990-20140916-v2.patch,
HBASE-11990-20140916-v3.patch, HBASE-11990-20140916-v5.patch,
HBASE-11990-20140916-v6.patch, HBASE-11990-20140916.patch,
HBASE-11990-20140917-v7.patch, HBASE-11990-20140919-v8.patch,
HBASE-11990-20140921-v9.patch
If you want to set a scan from your application to scan for a specific row
prefix this is actually quite hard.
As described in several places you can set the startRow to the prefix; yet
the stopRow should be set to the prefix '+1'
If the prefix 'ASCII' put into a byte[] then this is easy because you can
simply increment the last byte of the array.
But if your application uses real binary rowids you may run into the scenario
that your prefix is something like
{code}{ 0x12, 0x23, 0xFF, 0xFF }{code} Then the increment should be {code}{
0x12, 0x24 }{code}
I have prepared a proposed patch that makes setting these values correctly a
lot easier.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
[jira] [Updated] (HBASE-11990) Make setting the start and stop row for a specific prefix easier
[
https://issues.apache.org/jira/browse/HBASE-11990?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Niels Basjes updated HBASE-11990:
-
Status: Patch Available (was: Open)
Make setting the start and stop row for a specific prefix easier
Key: HBASE-11990
URL: https://issues.apache.org/jira/browse/HBASE-11990
Project: HBase
Issue Type: New Feature
Components: Client
Reporter: Niels Basjes
Attachments: 11990v4.txt, HBASE-11990-20140916-v2.patch,
HBASE-11990-20140916-v3.patch, HBASE-11990-20140916-v5.patch,
HBASE-11990-20140916-v6.patch, HBASE-11990-20140916.patch,
HBASE-11990-20140917-v7.patch, HBASE-11990-20140919-v8.patch,
HBASE-11990-20140921-v9.patch, HBASE-11990-20140923-v10.patch
If you want to set a scan from your application to scan for a specific row
prefix this is actually quite hard.
As described in several places you can set the startRow to the prefix; yet
the stopRow should be set to the prefix '+1'
If the prefix 'ASCII' put into a byte[] then this is easy because you can
simply increment the last byte of the array.
But if your application uses real binary rowids you may run into the scenario
that your prefix is something like
{code}{ 0x12, 0x23, 0xFF, 0xFF }{code} Then the increment should be {code}{
0x12, 0x24 }{code}
I have prepared a proposed patch that makes setting these values correctly a
lot easier.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
[jira] [Updated] (HBASE-11990) Make setting the start and stop row for a specific prefix easier
[
https://issues.apache.org/jira/browse/HBASE-11990?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Niels Basjes updated HBASE-11990:
-
Attachment: HBASE-11990-20140923-v10.patch
This patch reverts back to the method of calculating the correct the stopRow
and startRow to scan for the desired rows.
The method indicated by Lars is easier to understand, yet when doing a
multithreaded query of the data (i.e. MapReduce) will start many mappers that
are not needed at all and that could have been avoided beforehand.
I have revised and clarified both the documentation and method naming to better
clarify the distinction between the start/stop *Row* and the fact that we are
looking for rowKey *Prefixes*.
Just to be clear; Doing a prefix scan right is a hard problem. Just look at all
the good discussion that this ticket triggered about all the ways it can be
done and what the various pros and cons are. My intend with this patch has
always been to solve this problem in such a way that doing a prefix scan will
be a trivial task in the future.
Make setting the start and stop row for a specific prefix easier
Key: HBASE-11990
URL: https://issues.apache.org/jira/browse/HBASE-11990
Project: HBase
Issue Type: New Feature
Components: Client
Reporter: Niels Basjes
Attachments: 11990v4.txt, HBASE-11990-20140916-v2.patch,
HBASE-11990-20140916-v3.patch, HBASE-11990-20140916-v5.patch,
HBASE-11990-20140916-v6.patch, HBASE-11990-20140916.patch,
HBASE-11990-20140917-v7.patch, HBASE-11990-20140919-v8.patch,
HBASE-11990-20140921-v9.patch, HBASE-11990-20140923-v10.patch
If you want to set a scan from your application to scan for a specific row
prefix this is actually quite hard.
As described in several places you can set the startRow to the prefix; yet
the stopRow should be set to the prefix '+1'
If the prefix 'ASCII' put into a byte[] then this is easy because you can
simply increment the last byte of the array.
But if your application uses real binary rowids you may run into the scenario
that your prefix is something like
{code}{ 0x12, 0x23, 0xFF, 0xFF }{code} Then the increment should be {code}{
0x12, 0x24 }{code}
I have prepared a proposed patch that makes setting these values correctly a
lot easier.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
[jira] [Updated] (HBASE-11990) Make setting the start and stop row for a specific prefix easier
[
https://issues.apache.org/jira/browse/HBASE-11990?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Niels Basjes updated HBASE-11990:
-
Status: Patch Available (was: Open)
Make setting the start and stop row for a specific prefix easier
Key: HBASE-11990
URL: https://issues.apache.org/jira/browse/HBASE-11990
Project: HBase
Issue Type: New Feature
Components: Client
Reporter: Niels Basjes
Attachments: 11990v4.txt, HBASE-11990-20140916-v2.patch,
HBASE-11990-20140916-v3.patch, HBASE-11990-20140916-v5.patch,
HBASE-11990-20140916-v6.patch, HBASE-11990-20140916.patch,
HBASE-11990-20140917-v7.patch, HBASE-11990-20140919-v8.patch,
HBASE-11990-20140921-v9.patch
If you want to set a scan from your application to scan for a specific row
prefix this is actually quite hard.
As described in several places you can set the startRow to the prefix; yet
the stopRow should be set to the prefix '+1'
If the prefix 'ASCII' put into a byte[] then this is easy because you can
simply increment the last byte of the array.
But if your application uses real binary rowids you may run into the scenario
that your prefix is something like
{code}{ 0x12, 0x23, 0xFF, 0xFF }{code} Then the increment should be {code}{
0x12, 0x24 }{code}
I have prepared a proposed patch that makes setting these values correctly a
lot easier.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
[jira] [Updated] (HBASE-11990) Make setting the start and stop row for a specific prefix easier
[
https://issues.apache.org/jira/browse/HBASE-11990?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Niels Basjes updated HBASE-11990:
-
Attachment: HBASE-11990-20140921-v9.patch
This patch contains the following:
hbase-client
- In Scan the 'setRowPrefixFilter' (just a method rename, I have the feeling
this name is better)
hbase-server
- I split the class TestFilterWithScanLimits into two parts: The testing
facility (FilterTestingCluster) and the actual tests.
- A new testing class (that uses FilterTestingCluster) TestScanRowPrefix
intended to test the setRowPrefixFilter and the effects in relation to
setFilter.
hbase-book
- Small modification in the HBase book.
Make setting the start and stop row for a specific prefix easier
Key: HBASE-11990
URL: https://issues.apache.org/jira/browse/HBASE-11990
Project: HBase
Issue Type: New Feature
Components: Client
Reporter: Niels Basjes
Attachments: 11990v4.txt, HBASE-11990-20140916-v2.patch,
HBASE-11990-20140916-v3.patch, HBASE-11990-20140916-v5.patch,
HBASE-11990-20140916-v6.patch, HBASE-11990-20140916.patch,
HBASE-11990-20140917-v7.patch, HBASE-11990-20140919-v8.patch,
HBASE-11990-20140921-v9.patch
If you want to set a scan from your application to scan for a specific row
prefix this is actually quite hard.
As described in several places you can set the startRow to the prefix; yet
the stopRow should be set to the prefix '+1'
If the prefix 'ASCII' put into a byte[] then this is easy because you can
simply increment the last byte of the array.
But if your application uses real binary rowids you may run into the scenario
that your prefix is something like
{code}{ 0x12, 0x23, 0xFF, 0xFF }{code} Then the increment should be {code}{
0x12, 0x24 }{code}
I have prepared a proposed patch that makes setting these values correctly a
lot easier.
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[jira] [Updated] (HBASE-11990) Make setting the start and stop row for a specific prefix easier
[
https://issues.apache.org/jira/browse/HBASE-11990?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Niels Basjes updated HBASE-11990:
-
Status: Open (was: Patch Available)
Make setting the start and stop row for a specific prefix easier
Key: HBASE-11990
URL: https://issues.apache.org/jira/browse/HBASE-11990
Project: HBase
Issue Type: New Feature
Components: Client
Reporter: Niels Basjes
Attachments: 11990v4.txt, HBASE-11990-20140916-v2.patch,
HBASE-11990-20140916-v3.patch, HBASE-11990-20140916-v5.patch,
HBASE-11990-20140916-v6.patch, HBASE-11990-20140916.patch,
HBASE-11990-20140917-v7.patch, HBASE-11990-20140919-v8.patch,
HBASE-11990-20140921-v9.patch
If you want to set a scan from your application to scan for a specific row
prefix this is actually quite hard.
As described in several places you can set the startRow to the prefix; yet
the stopRow should be set to the prefix '+1'
If the prefix 'ASCII' put into a byte[] then this is easy because you can
simply increment the last byte of the array.
But if your application uses real binary rowids you may run into the scenario
that your prefix is something like
{code}{ 0x12, 0x23, 0xFF, 0xFF }{code} Then the increment should be {code}{
0x12, 0x24 }{code}
I have prepared a proposed patch that makes setting these values correctly a
lot easier.
--
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[jira] [Updated] (HBASE-11990) Make setting the start and stop row for a specific prefix easier
[
https://issues.apache.org/jira/browse/HBASE-11990?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Niels Basjes updated HBASE-11990:
-
Status: Open (was: Patch Available)
Working on a different approach as indicated by [~lhofhansl]
Make setting the start and stop row for a specific prefix easier
Key: HBASE-11990
URL: https://issues.apache.org/jira/browse/HBASE-11990
Project: HBase
Issue Type: New Feature
Components: Client
Reporter: Niels Basjes
Attachments: 11990v4.txt, HBASE-11990-20140916-v2.patch,
HBASE-11990-20140916-v3.patch, HBASE-11990-20140916-v5.patch,
HBASE-11990-20140916-v6.patch, HBASE-11990-20140916.patch,
HBASE-11990-20140917-v7.patch
If you want to set a scan from your application to scan for a specific row
prefix this is actually quite hard.
As described in several places you can set the startRow to the prefix; yet
the stopRow should be set to the prefix '+1'
If the prefix 'ASCII' put into a byte[] then this is easy because you can
simply increment the last byte of the array.
But if your application uses real binary rowids you may run into the scenario
that your prefix is something like
{code}{ 0x12, 0x23, 0xFF, 0xFF }{code} Then the increment should be {code}{
0x12, 0x24 }{code}
I have prepared a proposed patch that makes setting these values correctly a
lot easier.
--
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[jira] [Updated] (HBASE-11990) Make setting the start and stop row for a specific prefix easier
[
https://issues.apache.org/jira/browse/HBASE-11990?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Niels Basjes updated HBASE-11990:
-
Attachment: HBASE-11990-20140919-v8.patch
First version of the new approach.
No unit tests yet because I do not know how to build them.
Make setting the start and stop row for a specific prefix easier
Key: HBASE-11990
URL: https://issues.apache.org/jira/browse/HBASE-11990
Project: HBase
Issue Type: New Feature
Components: Client
Reporter: Niels Basjes
Attachments: 11990v4.txt, HBASE-11990-20140916-v2.patch,
HBASE-11990-20140916-v3.patch, HBASE-11990-20140916-v5.patch,
HBASE-11990-20140916-v6.patch, HBASE-11990-20140916.patch,
HBASE-11990-20140917-v7.patch, HBASE-11990-20140919-v8.patch
If you want to set a scan from your application to scan for a specific row
prefix this is actually quite hard.
As described in several places you can set the startRow to the prefix; yet
the stopRow should be set to the prefix '+1'
If the prefix 'ASCII' put into a byte[] then this is easy because you can
simply increment the last byte of the array.
But if your application uses real binary rowids you may run into the scenario
that your prefix is something like
{code}{ 0x12, 0x23, 0xFF, 0xFF }{code} Then the increment should be {code}{
0x12, 0x24 }{code}
I have prepared a proposed patch that makes setting these values correctly a
lot easier.
--
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[jira] [Updated] (HBASE-11990) Make setting the start and stop row for a specific prefix easier
[
https://issues.apache.org/jira/browse/HBASE-11990?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Niels Basjes updated HBASE-11990:
-
Status: Patch Available (was: Open)
Make setting the start and stop row for a specific prefix easier
Key: HBASE-11990
URL: https://issues.apache.org/jira/browse/HBASE-11990
Project: HBase
Issue Type: New Feature
Components: Client
Reporter: Niels Basjes
Attachments: 11990v4.txt, HBASE-11990-20140916-v2.patch,
HBASE-11990-20140916-v3.patch, HBASE-11990-20140916-v5.patch,
HBASE-11990-20140916-v6.patch, HBASE-11990-20140916.patch,
HBASE-11990-20140917-v7.patch, HBASE-11990-20140919-v8.patch
If you want to set a scan from your application to scan for a specific row
prefix this is actually quite hard.
As described in several places you can set the startRow to the prefix; yet
the stopRow should be set to the prefix '+1'
If the prefix 'ASCII' put into a byte[] then this is easy because you can
simply increment the last byte of the array.
But if your application uses real binary rowids you may run into the scenario
that your prefix is something like
{code}{ 0x12, 0x23, 0xFF, 0xFF }{code} Then the increment should be {code}{
0x12, 0x24 }{code}
I have prepared a proposed patch that makes setting these values correctly a
lot easier.
--
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[jira] [Updated] (HBASE-11990) Make setting the start and stop row for a specific prefix easier
[
https://issues.apache.org/jira/browse/HBASE-11990?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Niels Basjes updated HBASE-11990:
-
Attachment: HBASE-11990-20140917-v7.patch
- Improved the algorithm to do copy the data only once to the target location.
- Added test to ensure the source data is not wiped (ensure the copy is done).
Make setting the start and stop row for a specific prefix easier
Key: HBASE-11990
URL: https://issues.apache.org/jira/browse/HBASE-11990
Project: HBase
Issue Type: New Feature
Components: Client
Reporter: Niels Basjes
Attachments: 11990v4.txt, HBASE-11990-20140916-v2.patch,
HBASE-11990-20140916-v3.patch, HBASE-11990-20140916-v5.patch,
HBASE-11990-20140916-v6.patch, HBASE-11990-20140916.patch,
HBASE-11990-20140917-v7.patch
If you want to set a scan from your application to scan for a specific row
prefix this is actually quite hard.
As described in several places you can set the startRow to the prefix; yet
the stopRow should be set to the prefix '+1'
If the prefix 'ASCII' put into a byte[] then this is easy because you can
simply increment the last byte of the array.
But if your application uses real binary rowids you may run into the scenario
that your prefix is something like
{code}{ 0x12, 0x23, 0xFF, 0xFF }{code} Then the increment should be {code}{
0x12, 0x24 }{code}
I have prepared a proposed patch that makes setting these values correctly a
lot easier.
--
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[jira] [Updated] (HBASE-11990) Make setting the start and stop row for a specific prefix easier
[
https://issues.apache.org/jira/browse/HBASE-11990?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Niels Basjes updated HBASE-11990:
-
Status: Patch Available (was: Open)
Make setting the start and stop row for a specific prefix easier
Key: HBASE-11990
URL: https://issues.apache.org/jira/browse/HBASE-11990
Project: HBase
Issue Type: New Feature
Components: Client
Reporter: Niels Basjes
Attachments: 11990v4.txt, HBASE-11990-20140916-v2.patch,
HBASE-11990-20140916-v3.patch, HBASE-11990-20140916-v5.patch,
HBASE-11990-20140916-v6.patch, HBASE-11990-20140916.patch,
HBASE-11990-20140917-v7.patch
If you want to set a scan from your application to scan for a specific row
prefix this is actually quite hard.
As described in several places you can set the startRow to the prefix; yet
the stopRow should be set to the prefix '+1'
If the prefix 'ASCII' put into a byte[] then this is easy because you can
simply increment the last byte of the array.
But if your application uses real binary rowids you may run into the scenario
that your prefix is something like
{code}{ 0x12, 0x23, 0xFF, 0xFF }{code} Then the increment should be {code}{
0x12, 0x24 }{code}
I have prepared a proposed patch that makes setting these values correctly a
lot easier.
--
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[jira] [Updated] (HBASE-11990) Make setting the start and stop row for a specific prefix easier
[
https://issues.apache.org/jira/browse/HBASE-11990?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Niels Basjes updated HBASE-11990:
-
Status: Open (was: Patch Available)
Make setting the start and stop row for a specific prefix easier
Key: HBASE-11990
URL: https://issues.apache.org/jira/browse/HBASE-11990
Project: HBase
Issue Type: New Feature
Components: Client
Reporter: Niels Basjes
Attachments: 11990v4.txt, HBASE-11990-20140916-v2.patch,
HBASE-11990-20140916-v3.patch, HBASE-11990-20140916-v5.patch,
HBASE-11990-20140916-v6.patch, HBASE-11990-20140916.patch,
HBASE-11990-20140917-v7.patch
If you want to set a scan from your application to scan for a specific row
prefix this is actually quite hard.
As described in several places you can set the startRow to the prefix; yet
the stopRow should be set to the prefix '+1'
If the prefix 'ASCII' put into a byte[] then this is easy because you can
simply increment the last byte of the array.
But if your application uses real binary rowids you may run into the scenario
that your prefix is something like
{code}{ 0x12, 0x23, 0xFF, 0xFF }{code} Then the increment should be {code}{
0x12, 0x24 }{code}
I have prepared a proposed patch that makes setting these values correctly a
lot easier.
--
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[jira] [Updated] (HBASE-11990) Make setting the start and stop row for a specific prefix easier
[
https://issues.apache.org/jira/browse/HBASE-11990?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Niels Basjes updated HBASE-11990:
-
Attachment: HBASE-11990-20140916.patch
Proposed patch.
This also fixes the same documentation issue from HBASE-9035 in the javadoc of
the setStopRow method.
Make setting the start and stop row for a specific prefix easier
Key: HBASE-11990
URL: https://issues.apache.org/jira/browse/HBASE-11990
Project: HBase
Issue Type: New Feature
Components: Client
Reporter: Niels Basjes
Attachments: HBASE-11990-20140916.patch
If you want to set a scan from your application to scan for a specific row
prefix this is actually quite hard.
As described in several places you can set the startRow to the prefix; yet
the stopRow should be set to the prefix '+1'
If the prefix 'ASCII' put into a byte[] then this is easy because you can
simply increment the last byte of the array.
But if your application uses real binary rowids you may run into the scenario
that your prefix is something like { 0x12, 0x23, 0xFF, 0xFF }. Then the
increment should be { 0x12, 0x24, 0x00, 0x00 }.
I have prepared a proposed patch that makes setting these values correctly a
lot easier.
--
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[jira] [Updated] (HBASE-11990) Make setting the start and stop row for a specific prefix easier
[
https://issues.apache.org/jira/browse/HBASE-11990?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Niels Basjes updated HBASE-11990:
-
Description:
If you want to set a scan from your application to scan for a specific row
prefix this is actually quite hard.
As described in several places you can set the startRow to the prefix; yet the
stopRow should be set to the prefix '+1'
If the prefix 'ASCII' put into a byte[] then this is easy because you can
simply increment the last byte of the array.
But if your application uses real binary rowids you may run into the scenario
that your prefix is something like
{code}{ 0x12, 0x23, 0xFF, 0xFF }{code} Then the increment should be {code}{
0x12, 0x24, 0x00, 0x00 }{code}
I have prepared a proposed patch that makes setting these values correctly a
lot easier.
was:
If you want to set a scan from your application to scan for a specific row
prefix this is actually quite hard.
As described in several places you can set the startRow to the prefix; yet the
stopRow should be set to the prefix '+1'
If the prefix 'ASCII' put into a byte[] then this is easy because you can
simply increment the last byte of the array.
But if your application uses real binary rowids you may run into the scenario
that your prefix is something like { 0x12, 0x23, 0xFF, 0xFF }. Then the
increment should be { 0x12, 0x24, 0x00, 0x00 }.
I have prepared a proposed patch that makes setting these values correctly a
lot easier.
Make setting the start and stop row for a specific prefix easier
Key: HBASE-11990
URL: https://issues.apache.org/jira/browse/HBASE-11990
Project: HBase
Issue Type: New Feature
Components: Client
Reporter: Niels Basjes
Attachments: HBASE-11990-20140916.patch
If you want to set a scan from your application to scan for a specific row
prefix this is actually quite hard.
As described in several places you can set the startRow to the prefix; yet
the stopRow should be set to the prefix '+1'
If the prefix 'ASCII' put into a byte[] then this is easy because you can
simply increment the last byte of the array.
But if your application uses real binary rowids you may run into the scenario
that your prefix is something like
{code}{ 0x12, 0x23, 0xFF, 0xFF }{code} Then the increment should be {code}{
0x12, 0x24, 0x00, 0x00 }{code}
I have prepared a proposed patch that makes setting these values correctly a
lot easier.
--
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[jira] [Updated] (HBASE-11990) Make setting the start and stop row for a specific prefix easier
[
https://issues.apache.org/jira/browse/HBASE-11990?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Niels Basjes updated HBASE-11990:
-
Attachment: HBASE-11990-20140916-v2.patch
- Improved the javadoc
- Changed the behavior to remove the trailing 0x00 as indicated by [~anew]
- Added a test for empty byte[]
Make setting the start and stop row for a specific prefix easier
Key: HBASE-11990
URL: https://issues.apache.org/jira/browse/HBASE-11990
Project: HBase
Issue Type: New Feature
Components: Client
Reporter: Niels Basjes
Attachments: HBASE-11990-20140916-v2.patch, HBASE-11990-20140916.patch
If you want to set a scan from your application to scan for a specific row
prefix this is actually quite hard.
As described in several places you can set the startRow to the prefix; yet
the stopRow should be set to the prefix '+1'
If the prefix 'ASCII' put into a byte[] then this is easy because you can
simply increment the last byte of the array.
But if your application uses real binary rowids you may run into the scenario
that your prefix is something like
{code}{ 0x12, 0x23, 0xFF, 0xFF }{code} Then the increment should be {code}{
0x12, 0x24, 0x00, 0x00 }{code}
I have prepared a proposed patch that makes setting these values correctly a
lot easier.
--
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[jira] [Updated] (HBASE-11990) Make setting the start and stop row for a specific prefix easier
[
https://issues.apache.org/jira/browse/HBASE-11990?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Niels Basjes updated HBASE-11990:
-
Release Note: Added new method to easily scan for a specific row prefix
Status: Patch Available (was: Open)
Make setting the start and stop row for a specific prefix easier
Key: HBASE-11990
URL: https://issues.apache.org/jira/browse/HBASE-11990
Project: HBase
Issue Type: New Feature
Components: Client
Reporter: Niels Basjes
Attachments: HBASE-11990-20140916-v2.patch, HBASE-11990-20140916.patch
If you want to set a scan from your application to scan for a specific row
prefix this is actually quite hard.
As described in several places you can set the startRow to the prefix; yet
the stopRow should be set to the prefix '+1'
If the prefix 'ASCII' put into a byte[] then this is easy because you can
simply increment the last byte of the array.
But if your application uses real binary rowids you may run into the scenario
that your prefix is something like
{code}{ 0x12, 0x23, 0xFF, 0xFF }{code} Then the increment should be {code}{
0x12, 0x24, 0x00, 0x00 }{code}
I have prepared a proposed patch that makes setting these values correctly a
lot easier.
--
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[jira] [Updated] (HBASE-11990) Make setting the start and stop row for a specific prefix easier
[
https://issues.apache.org/jira/browse/HBASE-11990?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Niels Basjes updated HBASE-11990:
-
Description:
If you want to set a scan from your application to scan for a specific row
prefix this is actually quite hard.
As described in several places you can set the startRow to the prefix; yet the
stopRow should be set to the prefix '+1'
If the prefix 'ASCII' put into a byte[] then this is easy because you can
simply increment the last byte of the array.
But if your application uses real binary rowids you may run into the scenario
that your prefix is something like
{code}{ 0x12, 0x23, 0xFF, 0xFF }{code} Then the increment should be {code}{
0x12, 0x24 }{code}
I have prepared a proposed patch that makes setting these values correctly a
lot easier.
was:
If you want to set a scan from your application to scan for a specific row
prefix this is actually quite hard.
As described in several places you can set the startRow to the prefix; yet the
stopRow should be set to the prefix '+1'
If the prefix 'ASCII' put into a byte[] then this is easy because you can
simply increment the last byte of the array.
But if your application uses real binary rowids you may run into the scenario
that your prefix is something like
{code}{ 0x12, 0x23, 0xFF, 0xFF }{code} Then the increment should be {code}{
0x12, 0x24, 0x00, 0x00 }{code}
I have prepared a proposed patch that makes setting these values correctly a
lot easier.
Make setting the start and stop row for a specific prefix easier
Key: HBASE-11990
URL: https://issues.apache.org/jira/browse/HBASE-11990
Project: HBase
Issue Type: New Feature
Components: Client
Reporter: Niels Basjes
Attachments: HBASE-11990-20140916-v2.patch, HBASE-11990-20140916.patch
If you want to set a scan from your application to scan for a specific row
prefix this is actually quite hard.
As described in several places you can set the startRow to the prefix; yet
the stopRow should be set to the prefix '+1'
If the prefix 'ASCII' put into a byte[] then this is easy because you can
simply increment the last byte of the array.
But if your application uses real binary rowids you may run into the scenario
that your prefix is something like
{code}{ 0x12, 0x23, 0xFF, 0xFF }{code} Then the increment should be {code}{
0x12, 0x24 }{code}
I have prepared a proposed patch that makes setting these values correctly a
lot easier.
--
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[jira] [Updated] (HBASE-11990) Make setting the start and stop row for a specific prefix easier
[
https://issues.apache.org/jira/browse/HBASE-11990?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Niels Basjes updated HBASE-11990:
-
Status: Open (was: Patch Available)
Make setting the start and stop row for a specific prefix easier
Key: HBASE-11990
URL: https://issues.apache.org/jira/browse/HBASE-11990
Project: HBase
Issue Type: New Feature
Components: Client
Reporter: Niels Basjes
Attachments: HBASE-11990-20140916-v2.patch, HBASE-11990-20140916.patch
If you want to set a scan from your application to scan for a specific row
prefix this is actually quite hard.
As described in several places you can set the startRow to the prefix; yet
the stopRow should be set to the prefix '+1'
If the prefix 'ASCII' put into a byte[] then this is easy because you can
simply increment the last byte of the array.
But if your application uses real binary rowids you may run into the scenario
that your prefix is something like
{code}{ 0x12, 0x23, 0xFF, 0xFF }{code} Then the increment should be {code}{
0x12, 0x24 }{code}
I have prepared a proposed patch that makes setting these values correctly a
lot easier.
--
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[jira] [Updated] (HBASE-11990) Make setting the start and stop row for a specific prefix easier
[
https://issues.apache.org/jira/browse/HBASE-11990?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Niels Basjes updated HBASE-11990:
-
Attachment: HBASE-11990-20140916-v3.patch
Fixed the import that my IDE 'optimized'
Make setting the start and stop row for a specific prefix easier
Key: HBASE-11990
URL: https://issues.apache.org/jira/browse/HBASE-11990
Project: HBase
Issue Type: New Feature
Components: Client
Reporter: Niels Basjes
Attachments: HBASE-11990-20140916-v2.patch,
HBASE-11990-20140916-v3.patch, HBASE-11990-20140916.patch
If you want to set a scan from your application to scan for a specific row
prefix this is actually quite hard.
As described in several places you can set the startRow to the prefix; yet
the stopRow should be set to the prefix '+1'
If the prefix 'ASCII' put into a byte[] then this is easy because you can
simply increment the last byte of the array.
But if your application uses real binary rowids you may run into the scenario
that your prefix is something like
{code}{ 0x12, 0x23, 0xFF, 0xFF }{code} Then the increment should be {code}{
0x12, 0x24 }{code}
I have prepared a proposed patch that makes setting these values correctly a
lot easier.
--
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[jira] [Updated] (HBASE-11990) Make setting the start and stop row for a specific prefix easier
[
https://issues.apache.org/jira/browse/HBASE-11990?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Niels Basjes updated HBASE-11990:
-
Status: Patch Available (was: Open)
Make setting the start and stop row for a specific prefix easier
Key: HBASE-11990
URL: https://issues.apache.org/jira/browse/HBASE-11990
Project: HBase
Issue Type: New Feature
Components: Client
Reporter: Niels Basjes
Attachments: HBASE-11990-20140916-v2.patch,
HBASE-11990-20140916-v3.patch, HBASE-11990-20140916.patch
If you want to set a scan from your application to scan for a specific row
prefix this is actually quite hard.
As described in several places you can set the startRow to the prefix; yet
the stopRow should be set to the prefix '+1'
If the prefix 'ASCII' put into a byte[] then this is easy because you can
simply increment the last byte of the array.
But if your application uses real binary rowids you may run into the scenario
that your prefix is something like
{code}{ 0x12, 0x23, 0xFF, 0xFF }{code} Then the increment should be {code}{
0x12, 0x24 }{code}
I have prepared a proposed patch that makes setting these values correctly a
lot easier.
--
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[jira] [Updated] (HBASE-11990) Make setting the start and stop row for a specific prefix easier
[
https://issues.apache.org/jira/browse/HBASE-11990?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
stack updated HBASE-11990:
--
Attachment: 11990v4.txt
I got this:
Hunk #1 FAILED at 23.
Hunk #2 succeeded at 133 with fuzz 2 (offset 25 lines).
1 out of 2 hunks FAILED -- saving rejects to file
hbase-client/src/test/java/org/apache/hadoop/hbase/client/TestScan.java.rej
Seems like your branch a little stale.
v4 is after some small fixup in imports. Lets see how it does.
Oh, nit, drop the '--no-prefix' generating the patch going forwward. I know
our doc says to do this but we are changing it (see
https://issues.apache.org/jira/browse/HBASE-11937). Thanks [~nielsbasjes]
Make setting the start and stop row for a specific prefix easier
Key: HBASE-11990
URL: https://issues.apache.org/jira/browse/HBASE-11990
Project: HBase
Issue Type: New Feature
Components: Client
Reporter: Niels Basjes
Attachments: 11990v4.txt, HBASE-11990-20140916-v2.patch,
HBASE-11990-20140916-v3.patch, HBASE-11990-20140916.patch
If you want to set a scan from your application to scan for a specific row
prefix this is actually quite hard.
As described in several places you can set the startRow to the prefix; yet
the stopRow should be set to the prefix '+1'
If the prefix 'ASCII' put into a byte[] then this is easy because you can
simply increment the last byte of the array.
But if your application uses real binary rowids you may run into the scenario
that your prefix is something like
{code}{ 0x12, 0x23, 0xFF, 0xFF }{code} Then the increment should be {code}{
0x12, 0x24 }{code}
I have prepared a proposed patch that makes setting these values correctly a
lot easier.
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[jira] [Updated] (HBASE-11990) Make setting the start and stop row for a specific prefix easier
[
https://issues.apache.org/jira/browse/HBASE-11990?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Niels Basjes updated HBASE-11990:
-
Status: Open (was: Patch Available)
Make setting the start and stop row for a specific prefix easier
Key: HBASE-11990
URL: https://issues.apache.org/jira/browse/HBASE-11990
Project: HBase
Issue Type: New Feature
Components: Client
Reporter: Niels Basjes
Attachments: 11990v4.txt, HBASE-11990-20140916-v2.patch,
HBASE-11990-20140916-v3.patch, HBASE-11990-20140916.patch
If you want to set a scan from your application to scan for a specific row
prefix this is actually quite hard.
As described in several places you can set the startRow to the prefix; yet
the stopRow should be set to the prefix '+1'
If the prefix 'ASCII' put into a byte[] then this is easy because you can
simply increment the last byte of the array.
But if your application uses real binary rowids you may run into the scenario
that your prefix is something like
{code}{ 0x12, 0x23, 0xFF, 0xFF }{code} Then the increment should be {code}{
0x12, 0x24 }{code}
I have prepared a proposed patch that makes setting these values correctly a
lot easier.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
[jira] [Updated] (HBASE-11990) Make setting the start and stop row for a specific prefix easier
[
https://issues.apache.org/jira/browse/HBASE-11990?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Niels Basjes updated HBASE-11990:
-
Attachment: HBASE-11990-20140916-v5.patch
My branch was too stale.
Now created using {code}git diff HBASE-11990-20140916-v5.patch{code}
Make setting the start and stop row for a specific prefix easier
Key: HBASE-11990
URL: https://issues.apache.org/jira/browse/HBASE-11990
Project: HBase
Issue Type: New Feature
Components: Client
Reporter: Niels Basjes
Attachments: 11990v4.txt, HBASE-11990-20140916-v2.patch,
HBASE-11990-20140916-v3.patch, HBASE-11990-20140916-v5.patch,
HBASE-11990-20140916.patch
If you want to set a scan from your application to scan for a specific row
prefix this is actually quite hard.
As described in several places you can set the startRow to the prefix; yet
the stopRow should be set to the prefix '+1'
If the prefix 'ASCII' put into a byte[] then this is easy because you can
simply increment the last byte of the array.
But if your application uses real binary rowids you may run into the scenario
that your prefix is something like
{code}{ 0x12, 0x23, 0xFF, 0xFF }{code} Then the increment should be {code}{
0x12, 0x24 }{code}
I have prepared a proposed patch that makes setting these values correctly a
lot easier.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
[jira] [Updated] (HBASE-11990) Make setting the start and stop row for a specific prefix easier
[
https://issues.apache.org/jira/browse/HBASE-11990?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Niels Basjes updated HBASE-11990:
-
Status: Patch Available (was: Open)
Make setting the start and stop row for a specific prefix easier
Key: HBASE-11990
URL: https://issues.apache.org/jira/browse/HBASE-11990
Project: HBase
Issue Type: New Feature
Components: Client
Reporter: Niels Basjes
Attachments: 11990v4.txt, HBASE-11990-20140916-v2.patch,
HBASE-11990-20140916-v3.patch, HBASE-11990-20140916-v5.patch,
HBASE-11990-20140916.patch
If you want to set a scan from your application to scan for a specific row
prefix this is actually quite hard.
As described in several places you can set the startRow to the prefix; yet
the stopRow should be set to the prefix '+1'
If the prefix 'ASCII' put into a byte[] then this is easy because you can
simply increment the last byte of the array.
But if your application uses real binary rowids you may run into the scenario
that your prefix is something like
{code}{ 0x12, 0x23, 0xFF, 0xFF }{code} Then the increment should be {code}{
0x12, 0x24 }{code}
I have prepared a proposed patch that makes setting these values correctly a
lot easier.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
[jira] [Updated] (HBASE-11990) Make setting the start and stop row for a specific prefix easier
[
https://issues.apache.org/jira/browse/HBASE-11990?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Niels Basjes updated HBASE-11990:
-
Attachment: HBASE-11990-20140916-v6.patch
[~enis] Sorry I missed your comment about the name of the method.
Makes a lot of sense.
I changed it into
{code}public Scan setStopRowPrefixInclusive(byte[] stopRowPrefix){code}
Also note that I haven't changed my code even though there were several errors
(javadoc, findbugs and such) in the previous build. I seems these errors are
either not related to my patch or I'm unable to figure out what the actual
error is.
Make setting the start and stop row for a specific prefix easier
Key: HBASE-11990
URL: https://issues.apache.org/jira/browse/HBASE-11990
Project: HBase
Issue Type: New Feature
Components: Client
Reporter: Niels Basjes
Attachments: 11990v4.txt, HBASE-11990-20140916-v2.patch,
HBASE-11990-20140916-v3.patch, HBASE-11990-20140916-v5.patch,
HBASE-11990-20140916-v6.patch, HBASE-11990-20140916.patch
If you want to set a scan from your application to scan for a specific row
prefix this is actually quite hard.
As described in several places you can set the startRow to the prefix; yet
the stopRow should be set to the prefix '+1'
If the prefix 'ASCII' put into a byte[] then this is easy because you can
simply increment the last byte of the array.
But if your application uses real binary rowids you may run into the scenario
that your prefix is something like
{code}{ 0x12, 0x23, 0xFF, 0xFF }{code} Then the increment should be {code}{
0x12, 0x24 }{code}
I have prepared a proposed patch that makes setting these values correctly a
lot easier.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
[jira] [Updated] (HBASE-11990) Make setting the start and stop row for a specific prefix easier
[
https://issues.apache.org/jira/browse/HBASE-11990?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Niels Basjes updated HBASE-11990:
-
Status: Patch Available (was: Open)
Make setting the start and stop row for a specific prefix easier
Key: HBASE-11990
URL: https://issues.apache.org/jira/browse/HBASE-11990
Project: HBase
Issue Type: New Feature
Components: Client
Reporter: Niels Basjes
Attachments: 11990v4.txt, HBASE-11990-20140916-v2.patch,
HBASE-11990-20140916-v3.patch, HBASE-11990-20140916-v5.patch,
HBASE-11990-20140916-v6.patch, HBASE-11990-20140916.patch
If you want to set a scan from your application to scan for a specific row
prefix this is actually quite hard.
As described in several places you can set the startRow to the prefix; yet
the stopRow should be set to the prefix '+1'
If the prefix 'ASCII' put into a byte[] then this is easy because you can
simply increment the last byte of the array.
But if your application uses real binary rowids you may run into the scenario
that your prefix is something like
{code}{ 0x12, 0x23, 0xFF, 0xFF }{code} Then the increment should be {code}{
0x12, 0x24 }{code}
I have prepared a proposed patch that makes setting these values correctly a
lot easier.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
[jira] [Updated] (HBASE-11990) Make setting the start and stop row for a specific prefix easier
[
https://issues.apache.org/jira/browse/HBASE-11990?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Niels Basjes updated HBASE-11990:
-
Status: Open (was: Patch Available)
Make setting the start and stop row for a specific prefix easier
Key: HBASE-11990
URL: https://issues.apache.org/jira/browse/HBASE-11990
Project: HBase
Issue Type: New Feature
Components: Client
Reporter: Niels Basjes
Attachments: 11990v4.txt, HBASE-11990-20140916-v2.patch,
HBASE-11990-20140916-v3.patch, HBASE-11990-20140916-v5.patch,
HBASE-11990-20140916-v6.patch, HBASE-11990-20140916.patch
If you want to set a scan from your application to scan for a specific row
prefix this is actually quite hard.
As described in several places you can set the startRow to the prefix; yet
the stopRow should be set to the prefix '+1'
If the prefix 'ASCII' put into a byte[] then this is easy because you can
simply increment the last byte of the array.
But if your application uses real binary rowids you may run into the scenario
that your prefix is something like
{code}{ 0x12, 0x23, 0xFF, 0xFF }{code} Then the increment should be {code}{
0x12, 0x24 }{code}
I have prepared a proposed patch that makes setting these values correctly a
lot easier.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
