[jira] [Created] (KYLIN-4030) Resource deleteResource by comparing timestamp may failed to delete caused by time precision loose

["PENG Zhengshuai (JIRA)" <ji...@apache.org>]

PENG Zhengshuai created KYLIN-4030:
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             Summary: 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


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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