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https://issues.apache.org/jira/browse/HDDS-11546?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated HDDS-11546:
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Labels: pull-request-available (was: )
> Implement regex matching operation for --filter option of ldb scan command
> --------------------------------------------------------------------------
>
> Key: HDDS-11546
> URL: https://issues.apache.org/jira/browse/HDDS-11546
> Project: Apache Ozone
> Issue Type: Sub-task
> Reporter: Tejaskriya Madhan
> Assignee: Tejaskriya Madhan
> Priority: Major
> Labels: pull-request-available
>
> Currently, `ozone debug ldb scan` command has a `--filter` option supporting
> the following operations for the records stored in the rocksDB: `EQUALS, MIN,
> MAX`.
> Adding support for matching with regex will be useful while debugging as any
> pattern of keys can be found with it.
> For example, if a value has many fields like [name, location->[address, DN,
> IP], version, lastUpdateTime]:
> using the option `--filter=\{name:regex:^a.*}` will display records with name
> that start with the letter 'a'
> A fields along with the regex that should be used to is given to the command,
> and only those records passing the condition it will be shown.
>
> {code:java}
> eg.) ozone debug ldb --db=/data/metadata/om.db scan --cf=volumeTable
> --filter="usedNamespace:greater:2,adminName:regex:^a.*a$"
> --> Will show only the records having usedNamespace>2 and adminName starting
> and ending with the letter 'a'.{code}
>
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