[jira] [Updated] (HDFS-8900) Optimize XAttr memory footprint.

2015-08-21 Thread Yi Liu (JIRA) 

 [ 
https://issues.apache.org/jira/browse/HDFS-8900?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Yi Liu updated HDFS-8900:
-
Attachment: HDFS-8900.002.patch

 Optimize XAttr memory footprint.
 

 Key: HDFS-8900
 URL: https://issues.apache.org/jira/browse/HDFS-8900
 Project: Hadoop HDFS
  Issue Type: Improvement
  Components: namenode
Reporter: Yi Liu
Assignee: Yi Liu
 Attachments: HDFS-8900.001.patch, HDFS-8900.002.patch


 {code}
 private final ImmutableListXAttr xAttrs;
 {code}
 Currently we use above in XAttrFeature, it's not efficient from memory point 
 of view, since {{ImmutableList}} and {{XAttr}} have object memory overhead, 
 and each object has memory alignment. 
 We can use a {{byte[]}} in XAttrFeature and do some compact in {{XAttr}}.



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[jira] [Updated] (HDFS-8900) Optimize XAttr memory footprint.

2015-08-21 Thread Yi Liu (JIRA) 

 [ 
https://issues.apache.org/jira/browse/HDFS-8900?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Yi Liu updated HDFS-8900:
-
Attachment: HDFS-8900.002.patch

 Optimize XAttr memory footprint.
 

 Key: HDFS-8900
 URL: https://issues.apache.org/jira/browse/HDFS-8900
 Project: Hadoop HDFS
  Issue Type: Improvement
  Components: namenode
Reporter: Yi Liu
Assignee: Yi Liu
 Attachments: HDFS-8900.001.patch, HDFS-8900.002.patch


 {code}
 private final ImmutableListXAttr xAttrs;
 {code}
 Currently we use above in XAttrFeature, it's not efficient from memory point 
 of view, since {{ImmutableList}} and {{XAttr}} have object memory overhead, 
 and each object has memory alignment. 
 We can use a {{byte[]}} in XAttrFeature and do some compact in {{XAttr}}.



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[jira] [Updated] (HDFS-8900) Optimize XAttr memory footprint.

2015-08-21 Thread Yi Liu (JIRA) 

 [ 
https://issues.apache.org/jira/browse/HDFS-8900?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Yi Liu updated HDFS-8900:
-
Status: Open  (was: Patch Available)

 Optimize XAttr memory footprint.
 

 Key: HDFS-8900
 URL: https://issues.apache.org/jira/browse/HDFS-8900
 Project: Hadoop HDFS
  Issue Type: Improvement
  Components: namenode
Reporter: Yi Liu
Assignee: Yi Liu
 Attachments: HDFS-8900.001.patch, HDFS-8900.002.patch


 {code}
 private final ImmutableListXAttr xAttrs;
 {code}
 Currently we use above in XAttrFeature, it's not efficient from memory point 
 of view, since {{ImmutableList}} and {{XAttr}} have object memory overhead, 
 and each object has memory alignment. 
 We can use a {{byte[]}} in XAttrFeature and do some compact in {{XAttr}}.



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[jira] [Updated] (HDFS-8900) Optimize XAttr memory footprint.

2015-08-21 Thread Yi Liu (JIRA) 

 [ 
https://issues.apache.org/jira/browse/HDFS-8900?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Yi Liu updated HDFS-8900:
-
Status: Patch Available  (was: Open)

 Optimize XAttr memory footprint.
 

 Key: HDFS-8900
 URL: https://issues.apache.org/jira/browse/HDFS-8900
 Project: Hadoop HDFS
  Issue Type: Improvement
  Components: namenode
Reporter: Yi Liu
Assignee: Yi Liu
 Attachments: HDFS-8900.001.patch, HDFS-8900.002.patch


 {code}
 private final ImmutableListXAttr xAttrs;
 {code}
 Currently we use above in XAttrFeature, it's not efficient from memory point 
 of view, since {{ImmutableList}} and {{XAttr}} have object memory overhead, 
 and each object has memory alignment. 
 We can use a {{byte[]}} in XAttrFeature and do some compact in {{XAttr}}.



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[jira] [Updated] (HDFS-8900) Optimize XAttr memory footprint.

2015-08-21 Thread Yi Liu (JIRA) 

 [ 
https://issues.apache.org/jira/browse/HDFS-8900?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Yi Liu updated HDFS-8900:
-
Attachment: (was: HDFS-8900.002.patch)

 Optimize XAttr memory footprint.
 

 Key: HDFS-8900
 URL: https://issues.apache.org/jira/browse/HDFS-8900
 Project: Hadoop HDFS
  Issue Type: Improvement
  Components: namenode
Reporter: Yi Liu
Assignee: Yi Liu
 Attachments: HDFS-8900.001.patch


 {code}
 private final ImmutableListXAttr xAttrs;
 {code}
 Currently we use above in XAttrFeature, it's not efficient from memory point 
 of view, since {{ImmutableList}} and {{XAttr}} have object memory overhead, 
 and each object has memory alignment. 
 We can use a {{byte[]}} in XAttrFeature and do some compact in {{XAttr}}.



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[jira] [Updated] (HDFS-8900) Optimize XAttr memory footprint.

2015-08-20 Thread Yi Liu (JIRA) 

 [ 
https://issues.apache.org/jira/browse/HDFS-8900?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Yi Liu updated HDFS-8900:
-
Attachment: HDFS-8900.001.patch

 Optimize XAttr memory footprint.
 

 Key: HDFS-8900
 URL: https://issues.apache.org/jira/browse/HDFS-8900
 Project: Hadoop HDFS
  Issue Type: Improvement
  Components: namenode
Reporter: Yi Liu
Assignee: Yi Liu
 Attachments: HDFS-8900.001.patch


 {code}
 private final ImmutableListXAttr xAttrs;
 {code}
 Currently we use above in XAttrFeature, it's not efficient from memory point 
 of view, since {{ImmutableList}} and {{XAttr}} have object memory overhead, 
 and each object has memory alignment. 
 We can use a {{byte[]}} in XAttrFeature and do some compact in {{XAttr}}.



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[jira] [Updated] (HDFS-8900) Optimize XAttr memory footprint.

2015-08-20 Thread Yi Liu (JIRA) 

 [ 
https://issues.apache.org/jira/browse/HDFS-8900?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Yi Liu updated HDFS-8900:
-
Status: Patch Available  (was: Open)

 Optimize XAttr memory footprint.
 

 Key: HDFS-8900
 URL: https://issues.apache.org/jira/browse/HDFS-8900
 Project: Hadoop HDFS
  Issue Type: Improvement
  Components: namenode
Reporter: Yi Liu
Assignee: Yi Liu
 Attachments: HDFS-8900.001.patch


 {code}
 private final ImmutableListXAttr xAttrs;
 {code}
 Currently we use above in XAttrFeature, it's not efficient from memory point 
 of view, since {{ImmutableList}} and {{XAttr}} have object memory overhead, 
 and each object has memory alignment. 
 We can use a {{byte[]}} in XAttrFeature and do some compact in {{XAttr}}.



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[jira] [Updated] (HDFS-8900) Optimize XAttr memory footprint.

2015-08-19 Thread Yi Liu (JIRA) 

 [ 
https://issues.apache.org/jira/browse/HDFS-8900?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Yi Liu updated HDFS-8900:
-
Summary: Optimize XAttr memory footprint.  (was: Improve XAttr memory 
footprint.)

 Optimize XAttr memory footprint.
 

 Key: HDFS-8900
 URL: https://issues.apache.org/jira/browse/HDFS-8900
 Project: Hadoop HDFS
  Issue Type: Improvement
  Components: namenode
Reporter: Yi Liu
Assignee: Yi Liu

 {code}
 private final ImmutableListXAttr xAttrs;
 {code}
 Currently we use above in XAttrFeature, it's not efficient from memory point 
 of view, since {{ImmutableList}} and {{XAttr}} have object memory overhead, 
 and each object has memory alignment. 
 We can use a {{byte[]}} in XAttrFeature and do some compact in {{XAttr}}.



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