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https://issues.apache.org/jira/browse/FLINK-30475?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Flink Jira Bot updated FLINK-30475:
-----------------------------------
Labels: auto-deprioritized-major pull-request-available (was:
pull-request-available stale-major)
Priority: Minor (was: Major)
This issue was labeled "stale-major" 7 days ago and has not received any
updates so it is being deprioritized. If this ticket is actually Major, please
raise the priority and ask a committer to assign you the issue or revive the
public discussion.
> Improved speed of RocksDBMapState clear() using rocksDB.deleteRange
> -------------------------------------------------------------------
>
> Key: FLINK-30475
> URL: https://issues.apache.org/jira/browse/FLINK-30475
> Project: Flink
> Issue Type: Improvement
> Components: Runtime / State Backends
> Affects Versions: 1.16.0
> Reporter: David Hrbacek
> Priority: Minor
> Labels: auto-deprioritized-major, pull-request-available
>
> Currently {{RocksDBMapState#clear()}} is processed via keyRange traversing
> and inserting particular keys into BatchWrite for deletion.
> RocksDb offer much faster way how to delete key range - {{deleteRange}}
> This issue is follow-up for
> [FLINK-9070|https://issues.apache.org/jira/browse/FLINK-9070] where
> {{deleteRange}} was also considered. But at that time it implied slower read,
> it was buggy and not even available in the Java API of RocksDB. All of these
> problems were solved since that time (see also RocksDB [blog article for
> deleteRange|https://rocksdb.org/blog/2018/11/21/delete-range.html])
> Delete range enables to clear {{RocksDBMapState}} for one key in constant
> computational complexity whereas the old solution requires O(n ).
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