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https://issues.apache.org/jira/browse/KYLIN-4030?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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PENG Zhengshuai updated KYLIN-4030:
-----------------------------------
    Description: 
In ResourceStore, the interface *deleteResourceImpl(String resPath, long 
timestamp)* maybe failed to delete the resource because the resource timestamp 
may lose the precision.

For example, if we use *$KYLIN_HOME/bin/metastore.sh* to backup from metastore 
to Local OS filesystem, and restore from local filesystem to metastore. The 
resource timestamp will lose precision in Millis Second.

An example here: 
original timestamp: 1559564381
after precision lost: 1559564000

  was:
In ResourceStore, the interface `deleteResourceImpl(String resPath, long 
timestamp)` maybe failed to delete the resource because the resource timestamp 
may lose the precision.

For example, if we use $KYLIN_HOME/bin/metastore.sh to backup from metastore to 
Local OS filesystem, and restore from local filesystem to metastore. The 
resource timestamp will lose precision in Millis Second.

An example here: 
original timestamp: 1559564381
after precision lost: 1559564000


> Resource deleteResource by comparing timestamp may failed to delete caused by 
> time precision loose
> --------------------------------------------------------------------------------------------------
>
>                 Key: KYLIN-4030
>                 URL: https://issues.apache.org/jira/browse/KYLIN-4030
>             Project: Kylin
>          Issue Type: Bug
>            Reporter: PENG Zhengshuai
>            Assignee: PENG Zhengshuai
>            Priority: Minor
>
> In ResourceStore, the interface *deleteResourceImpl(String resPath, long 
> timestamp)* maybe failed to delete the resource because the resource 
> timestamp may lose the precision.
> For example, if we use *$KYLIN_HOME/bin/metastore.sh* to backup from 
> metastore to Local OS filesystem, and restore from local filesystem to 
> metastore. The resource timestamp will lose precision in Millis Second.
> An example here: 
> original timestamp: 1559564381
> after precision lost: 1559564000



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