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https://issues.apache.org/jira/browse/HBASE-28457?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Duo Zhang updated HBASE-28457:
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Release Note: Introduce a 'version' field in file based tracker record, so
while downgrading, we will know that we are reading a new version of file
tracker file and fail with explicit message instead of failing silently and
causing possible data loss. (was: Introduced a 'version' field in file based
tracker record, so while downgrading, we will know that we are reading a new
version of file tracker file and fail with explicit message instead of failing
silently and causing possible data loss.)
> Introduce a version field in file based tracker record
> ------------------------------------------------------
>
> Key: HBASE-28457
> URL: https://issues.apache.org/jira/browse/HBASE-28457
> Project: HBase
> Issue Type: Sub-task
> Components: HFile
> Reporter: Duo Zhang
> Assignee: Duo Zhang
> Priority: Major
> Labels: pull-request-available
> Fix For: 2.6.0, 3.0.0-beta-2, 2.5.9
>
>
> Per the discussion around HBASE-27826 and the related design doc, we all
> agree that we should add version field to store file tracker, so when
> downgrading, we will know that we will miss something when reading a tracker
> file with higher version and fail the initialization, instead of ignore it
> silently and may cause data loss.
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