[jira] [Updated] (FLINK-8790) Improve performance for recovery from incremental checkpoint

2021-02-07 Thread ASF GitHub Bot (Jira)


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https://issues.apache.org/jira/browse/FLINK-8790?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

ASF GitHub Bot updated FLINK-8790:
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Labels: pull-request-available  (was: )

> Improve performance for recovery from incremental checkpoint
> 
>
> Key: FLINK-8790
> URL: https://issues.apache.org/jira/browse/FLINK-8790
> Project: Flink
>  Issue Type: Improvement
>  Components: Runtime / State Backends
>Affects Versions: 1.5.0
>Reporter: Sihua Zhou
>Assignee: Sihua Zhou
>Priority: Major
>  Labels: pull-request-available
> Fix For: 1.6.0
>
>
> When there are multi state handle to be restored, we can improve the 
> performance as follow:
> 1. Choose the best state handle to init the target db
> 2. Use the other state handles to create temp db, and clip the db according 
> to the target key group range (via rocksdb.deleteRange()), this can help use 
> get rid of the `key group check` in 
>  `data insertion loop` and also help us get rid of traversing the useless 
> record.



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[jira] [Updated] (FLINK-8790) Improve performance for recovery from incremental checkpoint

2018-03-07 Thread Sihua Zhou (JIRA)

 [ 
https://issues.apache.org/jira/browse/FLINK-8790?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Sihua Zhou updated FLINK-8790:
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Fix Version/s: (was: 1.5.0)
   1.6.0

> Improve performance for recovery from incremental checkpoint
> 
>
> Key: FLINK-8790
> URL: https://issues.apache.org/jira/browse/FLINK-8790
> Project: Flink
>  Issue Type: Improvement
>  Components: State Backends, Checkpointing
>Affects Versions: 1.5.0
>Reporter: Sihua Zhou
>Assignee: Sihua Zhou
>Priority: Major
> Fix For: 1.6.0
>
>
> When there are multi state handle to be restored, we can improve the 
> performance as follow:
> 1. Choose the best state handle to init the target db
> 2. Use the other state handles to create temp db, and clip the db according 
> to the target key group range (via rocksdb.deleteRange()), this can help use 
> get rid of the `key group check` in 
>  `data insertion loop` and also help us get rid of traversing the useless 
> record.



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