[jira] [Updated] (HBASE-25281) Bulkload split hfile too many times due to unreasonable split point
[
https://issues.apache.org/jira/browse/HBASE-25281?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
niuyulin updated HBASE-25281:
-
Description:
[https://github.com/apache/hbase/blob/master/hbase-server/src/main/java/org/apache/hadoop/hbase/tool/BulkLoadHFilesTool.java#L688]
if hfile span multi regions, for example A,B,C,D,E,F(the start key of these
regions are in ascending order), we should use region C endkey to split, not
region A. In this way, we can get equal .top and .bottom hfiles, reduce time
complexity of split from O( n ) to O(logn),decrease invoke of {{bulkLoad}} rpc
to regionserver ,and also avoid write amplification during {{copyHFileHalf}}
was:
[https://github.com/apache/hbase/blob/master/hbase-server/src/main/java/org/apache/hadoop/hbase/tool/BulkLoadHFilesTool.java#L688]
if hfile span multi regions, for example A,B,C,D,E,F(the start key of these
regions are in ascending order), we should use region C endkey to split, not
region A. In this way, we can get equal .top and .bottom hfiles, reduce time
complexity of split from O(n) to O(logn),decrease invoke of {{bulkLoad}} rpc to
regionserver ,and also avoid write amplification during {{copyHFileHalf}}
> Bulkload split hfile too many times due to unreasonable split point
> ---
>
> Key: HBASE-25281
> URL: https://issues.apache.org/jira/browse/HBASE-25281
> Project: HBase
> Issue Type: Improvement
> Components: tooling
>Reporter: niuyulin
>Assignee: niuyulin
>Priority: Minor
> Attachments: bulkload.png
>
>
> [https://github.com/apache/hbase/blob/master/hbase-server/src/main/java/org/apache/hadoop/hbase/tool/BulkLoadHFilesTool.java#L688]
> if hfile span multi regions, for example A,B,C,D,E,F(the start key of these
> regions are in ascending order), we should use region C endkey to split, not
> region A. In this way, we can get equal .top and .bottom hfiles, reduce time
> complexity of split from O( n ) to O(logn),decrease invoke of {{bulkLoad}}
> rpc to regionserver ,and also avoid write amplification during
> {{copyHFileHalf}}
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
[jira] [Updated] (HBASE-25281) Bulkload split hfile too many times due to unreasonable split point
[
https://issues.apache.org/jira/browse/HBASE-25281?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
niuyulin updated HBASE-25281:
-
Description:
[https://github.com/apache/hbase/blob/master/hbase-server/src/main/java/org/apache/hadoop/hbase/tool/BulkLoadHFilesTool.java#L688]
if hfile span multi regions, for example A,B,C,D,E,F(the start key of these
regions are in ascending order), we should use region C endkey to split, not
region A. In this way, we can get equal .top and .bottom hfiles, reduce time
complexity of split from O(n) to O(logn),decrease invoke of {{bulkLoad}} rpc to
regionserver ,and also avoid write amplification during {{copyHFileHalf}}
was:
[https://github.com/apache/hbase/blob/master/hbase-server/src/main/java/org/apache/hadoop/hbase/tool/BulkLoadHFilesTool.java#L688]
the split point is not in middle, If the hfile span N regions, we need split
N-1 times now
> Bulkload split hfile too many times due to unreasonable split point
> ---
>
> Key: HBASE-25281
> URL: https://issues.apache.org/jira/browse/HBASE-25281
> Project: HBase
> Issue Type: Improvement
> Components: tooling
>Reporter: niuyulin
>Assignee: niuyulin
>Priority: Minor
> Attachments: bulkload.png
>
>
> [https://github.com/apache/hbase/blob/master/hbase-server/src/main/java/org/apache/hadoop/hbase/tool/BulkLoadHFilesTool.java#L688]
> if hfile span multi regions, for example A,B,C,D,E,F(the start key of these
> regions are in ascending order), we should use region C endkey to split, not
> region A. In this way, we can get equal .top and .bottom hfiles, reduce time
> complexity of split from O(n) to O(logn),decrease invoke of {{bulkLoad}} rpc
> to regionserver ,and also avoid write amplification during {{copyHFileHalf}}
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
[jira] [Updated] (HBASE-25281) Bulkload split hfile too many times due to unreasonable split point
[
https://issues.apache.org/jira/browse/HBASE-25281?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
niuyulin updated HBASE-25281:
-
Description:
[https://github.com/apache/hbase/blob/master/hbase-server/src/main/java/org/apache/hadoop/hbase/tool/BulkLoadHFilesTool.java#L688]
if hfile span multi regions, for example A,B,C,D,E,F(the start key of these
regions are in ascending order), we should use region C endkey to split, not
region A. In this way, we can get equal .top and .bottom hfiles, reduce time
complexity of split from O(n) to O(logn),decrease invoke of {{bulkLoad}} rpc to
regionserver ,and also avoid write amplification during {{copyHFileHalf}}
was:
[https://github.com/apache/hbase/blob/master/hbase-server/src/main/java/org/apache/hadoop/hbase/tool/BulkLoadHFilesTool.java#L688]
if hfile span multi regions, for example A,B,C,D,E,F(the start key of these
regions are in ascending order), we should use region C endkey to split, not
region A. In this way, we can get equal .top and .bottom hfiles, reduce time
complexity of split from O(n) to O(logn),decrease invoke of {{bulkLoad}} rpc to
regionserver ,and also avoid write amplification during {{copyHFileHalf}}
> Bulkload split hfile too many times due to unreasonable split point
> ---
>
> Key: HBASE-25281
> URL: https://issues.apache.org/jira/browse/HBASE-25281
> Project: HBase
> Issue Type: Improvement
> Components: tooling
>Reporter: niuyulin
>Assignee: niuyulin
>Priority: Minor
> Attachments: bulkload.png
>
>
> [https://github.com/apache/hbase/blob/master/hbase-server/src/main/java/org/apache/hadoop/hbase/tool/BulkLoadHFilesTool.java#L688]
> if hfile span multi regions, for example A,B,C,D,E,F(the start key of these
> regions are in ascending order), we should use region C endkey to split, not
> region A. In this way, we can get equal .top and .bottom hfiles, reduce time
> complexity of split from O(n) to O(logn),decrease invoke of {{bulkLoad}} rpc
> to regionserver ,and also avoid write amplification during {{copyHFileHalf}}
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
[jira] [Updated] (HBASE-25281) Bulkload split hfile too many times due to unreasonable split point
[ https://issues.apache.org/jira/browse/HBASE-25281?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] niuyulin updated HBASE-25281: - Component/s: tooling > Bulkload split hfile too many times due to unreasonable split point > --- > > Key: HBASE-25281 > URL: https://issues.apache.org/jira/browse/HBASE-25281 > Project: HBase > Issue Type: Improvement > Components: tooling >Reporter: niuyulin >Assignee: niuyulin >Priority: Minor > Attachments: bulkload.png > > > [https://github.com/apache/hbase/blob/master/hbase-server/src/main/java/org/apache/hadoop/hbase/tool/BulkLoadHFilesTool.java#L688] > the split point is not in middle, If the hfile span N regions, we need split > N-1 times now -- This message was sent by Atlassian Jira (v8.3.4#803005)
[jira] [Updated] (HBASE-25281) Bulkload split hfile too many times due to unreasonable split point
[ https://issues.apache.org/jira/browse/HBASE-25281?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] niuyulin updated HBASE-25281: - Attachment: bulkload.png > Bulkload split hfile too many times due to unreasonable split point > --- > > Key: HBASE-25281 > URL: https://issues.apache.org/jira/browse/HBASE-25281 > Project: HBase > Issue Type: Improvement >Reporter: niuyulin >Assignee: niuyulin >Priority: Minor > Attachments: bulkload.png > > > [https://github.com/apache/hbase/blob/master/hbase-server/src/main/java/org/apache/hadoop/hbase/tool/BulkLoadHFilesTool.java#L688] > the split point is not in middle, If the hfile span N regions, we need split > N-1 times now -- This message was sent by Atlassian Jira (v8.3.4#803005)
