[jira] [Updated] (HDFS-10656) Optimize conversion of byte arrays back to path string

2017-01-06 Thread Junping Du (JIRA) 

 [ 
https://issues.apache.org/jira/browse/HDFS-10656?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Junping Du updated HDFS-10656:
--
Fix Version/s: (was: 2.9.0)

> Optimize conversion of byte arrays back to path string
> --
>
> Key: HDFS-10656
> URL: https://issues.apache.org/jira/browse/HDFS-10656
> Project: Hadoop HDFS
>  Issue Type: Sub-task
>  Components: hdfs
>Reporter: Daryn Sharp
>Assignee: Daryn Sharp
> Fix For: 2.8.0, 2.7.4, 3.0.0-alpha1
>
> Attachments: HDFS-10656.patch
>
>
> {{DFSUtil.byteArray2PathString}} generates excessive object allocation.
> # each byte array is encoded to a string (copy)
> # string appended to a builder which extracts the chars from the intermediate 
> string (copy) and adds to its own char array
> # builder's char array is re-alloced if over 16 chars (copy)
> # builder's toString creates another string (copy)
> Instead of allocating all these objects and performing multiple byte/char 
> encoding/decoding conversions, the byte array can be built in-place with a 
> single final conversion to a string.



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[jira] [Updated] (HDFS-10656) Optimize conversion of byte arrays back to path string

2016-08-31 Thread Zhe Zhang (JIRA) 

 [ 
https://issues.apache.org/jira/browse/HDFS-10656?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Zhe Zhang updated HDFS-10656:
-
Fix Version/s: 2.7.4
   2.8.0

> Optimize conversion of byte arrays back to path string
> --
>
> Key: HDFS-10656
> URL: https://issues.apache.org/jira/browse/HDFS-10656
> Project: Hadoop HDFS
>  Issue Type: Sub-task
>  Components: hdfs
>Reporter: Daryn Sharp
>Assignee: Daryn Sharp
> Fix For: 2.8.0, 2.9.0, 2.7.4, 3.0.0-alpha1
>
> Attachments: HDFS-10656.patch
>
>
> {{DFSUtil.byteArray2PathString}} generates excessive object allocation.
> # each byte array is encoded to a string (copy)
> # string appended to a builder which extracts the chars from the intermediate 
> string (copy) and adds to its own char array
> # builder's char array is re-alloced if over 16 chars (copy)
> # builder's toString creates another string (copy)
> Instead of allocating all these objects and performing multiple byte/char 
> encoding/decoding conversions, the byte array can be built in-place with a 
> single final conversion to a string.



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[jira] [Updated] (HDFS-10656) Optimize conversion of byte arrays back to path string

2016-08-03 Thread Kihwal Lee (JIRA) 

 [ 
https://issues.apache.org/jira/browse/HDFS-10656?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Kihwal Lee updated HDFS-10656:
--
   Resolution: Fixed
 Hadoop Flags: Reviewed
Fix Version/s: 3.0.0-alpha2
   2.9.0
   Status: Resolved  (was: Patch Available)

Committed this to trunk and branch-2. 

> Optimize conversion of byte arrays back to path string
> --
>
> Key: HDFS-10656
> URL: https://issues.apache.org/jira/browse/HDFS-10656
> Project: Hadoop HDFS
>  Issue Type: Sub-task
>  Components: hdfs
>Reporter: Daryn Sharp
>Assignee: Daryn Sharp
> Fix For: 2.9.0, 3.0.0-alpha2
>
> Attachments: HDFS-10656.patch
>
>
> {{DFSUtil.byteArray2PathString}} generates excessive object allocation.
> # each byte array is encoded to a string (copy)
> # string appended to a builder which extracts the chars from the intermediate 
> string (copy) and adds to its own char array
> # builder's char array is re-alloced if over 16 chars (copy)
> # builder's toString creates another string (copy)
> Instead of allocating all these objects and performing multiple byte/char 
> encoding/decoding conversions, the byte array can be built in-place with a 
> single final conversion to a string.



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[jira] [Updated] (HDFS-10656) Optimize conversion of byte arrays back to path string

2016-08-01 Thread Daryn Sharp (JIRA) 

 [ 
https://issues.apache.org/jira/browse/HDFS-10656?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Daryn Sharp updated HDFS-10656:
---
Status: Patch Available  (was: Open)

> Optimize conversion of byte arrays back to path string
> --
>
> Key: HDFS-10656
> URL: https://issues.apache.org/jira/browse/HDFS-10656
> Project: Hadoop HDFS
>  Issue Type: Sub-task
>  Components: hdfs
>Reporter: Daryn Sharp
>Assignee: Daryn Sharp
> Attachments: HDFS-10656.patch
>
>
> {{DFSUtil.byteArray2PathString}} generates excessive object allocation.
> # each byte array is encoded to a string (copy)
> # string appended to a builder which extracts the chars from the intermediate 
> string (copy) and adds to its own char array
> # builder's char array is re-alloced if over 16 chars (copy)
> # builder's toString creates another string (copy)
> Instead of allocating all these objects and performing multiple byte/char 
> encoding/decoding conversions, the byte array can be built in-place with a 
> single final conversion to a string.



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[jira] [Updated] (HDFS-10656) Optimize conversion of byte arrays back to path string

2016-07-20 Thread Daryn Sharp (JIRA) 

 [ 
https://issues.apache.org/jira/browse/HDFS-10656?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Daryn Sharp updated HDFS-10656:
---
Attachment: HDFS-10656.patch

> Optimize conversion of byte arrays back to path string
> --
>
> Key: HDFS-10656
> URL: https://issues.apache.org/jira/browse/HDFS-10656
> Project: Hadoop HDFS
>  Issue Type: Sub-task
>  Components: hdfs
>Reporter: Daryn Sharp
>Assignee: Daryn Sharp
> Attachments: HDFS-10656.patch
>
>
> {{DFSUtil.byteArray2PathString}} generates excessive object allocation.
> # each byte array is encoded to a string (copy)
> # string appended to a builder which extracts the chars from the intermediate 
> string (copy) and adds to its own char array
> # builder's char array is re-alloced if over 16 chars (copy)
> # builder's toString creates another string (copy)
> Instead of allocating all these objects and performing multiple byte/char 
> encoding/decoding conversions, the byte array can be built in-place with a 
> single final conversion to a string.



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