[jira] [Updated] (HBASE-10487) Avoid allocating new KeyValue and according bytes-copying for appended kvs which don't have existing values

2014-02-11 Thread Ted Yu (JIRA)

 [ 
https://issues.apache.org/jira/browse/HBASE-10487?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Ted Yu updated HBASE-10487:
---

Fix Version/s: 0.98.1
 Hadoop Flags: Reviewed

> Avoid allocating new KeyValue and according bytes-copying for appended kvs 
> which don't have existing values
> ---
>
> Key: HBASE-10487
> URL: https://issues.apache.org/jira/browse/HBASE-10487
> Project: HBase
>  Issue Type: Improvement
>  Components: regionserver
>Reporter: Feng Honghua
>Assignee: Feng Honghua
> Fix For: 0.98.1, 0.99.0
>
> Attachments: HBASE-10487-0.98_v1.patch, HBASE-10487-trunk_v1.patch
>
>
> in HRegion.append, new KeyValues will be allocated and do according 
> bytes-copying no matter whether there are existing kv for the appended cells, 
> we can improve here by avoiding the allocating of new KeyValue and according 
> bytes-copying for kv which don't have existing(old) values by reusing the 
> passed-in kv and only updating its timestamp to 'now'(its original timestamp 
> is latest, so can be updated)



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[jira] [Updated] (HBASE-10487) Avoid allocating new KeyValue and according bytes-copying for appended kvs which don't have existing values

2014-02-11 Thread Ted Yu (JIRA)

 [ 
https://issues.apache.org/jira/browse/HBASE-10487?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Ted Yu updated HBASE-10487:
---

Resolution: Fixed
Status: Resolved  (was: Patch Available)

> Avoid allocating new KeyValue and according bytes-copying for appended kvs 
> which don't have existing values
> ---
>
> Key: HBASE-10487
> URL: https://issues.apache.org/jira/browse/HBASE-10487
> Project: HBase
>  Issue Type: Improvement
>  Components: regionserver
>Reporter: Feng Honghua
>Assignee: Feng Honghua
> Fix For: 0.98.1, 0.99.0
>
> Attachments: HBASE-10487-0.98_v1.patch, HBASE-10487-trunk_v1.patch
>
>
> in HRegion.append, new KeyValues will be allocated and do according 
> bytes-copying no matter whether there are existing kv for the appended cells, 
> we can improve here by avoiding the allocating of new KeyValue and according 
> bytes-copying for kv which don't have existing(old) values by reusing the 
> passed-in kv and only updating its timestamp to 'now'(its original timestamp 
> is latest, so can be updated)



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[jira] [Updated] (HBASE-10487) Avoid allocating new KeyValue and according bytes-copying for appended kvs which don't have existing values

2014-02-11 Thread Feng Honghua (JIRA)

 [ 
https://issues.apache.org/jira/browse/HBASE-10487?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Feng Honghua updated HBASE-10487:
-

Attachment: HBASE-10487-0.98_v1.patch

Patch for 0.98 attached, thanks [~yuzhih...@gmail.com]

> Avoid allocating new KeyValue and according bytes-copying for appended kvs 
> which don't have existing values
> ---
>
> Key: HBASE-10487
> URL: https://issues.apache.org/jira/browse/HBASE-10487
> Project: HBase
>  Issue Type: Improvement
>  Components: regionserver
>Reporter: Feng Honghua
>Assignee: Feng Honghua
> Fix For: 0.99.0
>
> Attachments: HBASE-10487-0.98_v1.patch, HBASE-10487-trunk_v1.patch
>
>
> in HRegion.append, new KeyValues will be allocated and do according 
> bytes-copying no matter whether there are existing kv for the appended cells, 
> we can improve here by avoiding the allocating of new KeyValue and according 
> bytes-copying for kv which don't have existing(old) values by reusing the 
> passed-in kv and only updating its timestamp to 'now'(its original timestamp 
> is latest, so can be updated)



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[jira] [Updated] (HBASE-10487) Avoid allocating new KeyValue and according bytes-copying for appended kvs which don't have existing values

2014-02-11 Thread Ted Yu (JIRA)

 [ 
https://issues.apache.org/jira/browse/HBASE-10487?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Ted Yu updated HBASE-10487:
---

Fix Version/s: 0.99.0

> Avoid allocating new KeyValue and according bytes-copying for appended kvs 
> which don't have existing values
> ---
>
> Key: HBASE-10487
> URL: https://issues.apache.org/jira/browse/HBASE-10487
> Project: HBase
>  Issue Type: Improvement
>  Components: regionserver
>Reporter: Feng Honghua
>Assignee: Feng Honghua
> Fix For: 0.99.0
>
> Attachments: HBASE-10487-trunk_v1.patch
>
>
> in HRegion.append, new KeyValues will be allocated and do according 
> bytes-copying no matter whether there are existing kv for the appended cells, 
> we can improve here by avoiding the allocating of new KeyValue and according 
> bytes-copying for kv which don't have existing(old) values by reusing the 
> passed-in kv and only updating its timestamp to 'now'(its original timestamp 
> is latest, so can be updated)



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[jira] [Updated] (HBASE-10487) Avoid allocating new KeyValue and according bytes-copying for appended kvs which don't have existing values

2014-02-10 Thread Ted Yu (JIRA)

 [ 
https://issues.apache.org/jira/browse/HBASE-10487?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Ted Yu updated HBASE-10487:
---

Summary: Avoid allocating new KeyValue and according bytes-copying for 
appended kvs which don't have existing values  (was: Avoid allocating new 
KeyValue and according bytes-copying for appended kvs which don't have 
existing(old) values)

> Avoid allocating new KeyValue and according bytes-copying for appended kvs 
> which don't have existing values
> ---
>
> Key: HBASE-10487
> URL: https://issues.apache.org/jira/browse/HBASE-10487
> Project: HBase
>  Issue Type: Improvement
>  Components: regionserver
>Reporter: Feng Honghua
>Assignee: Feng Honghua
> Attachments: HBASE-10487-trunk_v1.patch
>
>
> in HRegion.append, new KeyValues will be allocated and do according 
> bytes-copying no matter whether there are existing kv for the appended cells, 
> we can improve here by avoiding the allocating of new KeyValue and according 
> bytes-copying for kv which don't have existing(old) values by reusing the 
> passed-in kv and only updating its timestamp to 'now'(its original timestamp 
> is latest, so can be updated)



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