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https://issues.apache.org/jira/browse/HDDS-11775?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ethan Rose updated HDDS-11775:
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Description: Some {{ozone debug}} tools may require a consistent view into
the RocksDB instance to function correctly and may give incorrect results if
the DB is being used by a running OM. To fix this, we can have {{ozone debug}}
operate on a RocksDB checkpoint if the Ozone process is running. This avoids
users having to manually install RocksDB's ldb and make the checkpoint
themselves. This could be an optional flag like {{--checkpoint}} that instructs
the command to create a checkpoint from the RocksDB instance provided and read
that instead. (was: If a process like Ozone has a RocksDB instance open for
write, then another process like {{ozone debug}} cannot open the DB for
reading. Many {{ozone debug}} tools will not give consistent results on a DB
undergoing writes anyways. To fix this, we can have {{ozone debug}} operate on
a RocksDB checkpoint if the Ozone process is running. This avoids users having
to manually install RocksDB's ldb and make the checkpoint themselves. This
could be an optional flag like {{--checkpoint}} that instructs the command to
create a checkpoint from the RocksDB instance provided and read that instead.)
> Allow Ozone debug tools that need to read RocksDB to automatically create a
> checkpoint
> --------------------------------------------------------------------------------------
>
> Key: HDDS-11775
> URL: https://issues.apache.org/jira/browse/HDDS-11775
> Project: Apache Ozone
> Issue Type: Sub-task
> Reporter: Ethan Rose
> Priority: Major
>
> Some {{ozone debug}} tools may require a consistent view into the RocksDB
> instance to function correctly and may give incorrect results if the DB is
> being used by a running OM. To fix this, we can have {{ozone debug}} operate
> on a RocksDB checkpoint if the Ozone process is running. This avoids users
> having to manually install RocksDB's ldb and make the checkpoint themselves.
> This could be an optional flag like {{--checkpoint}} that instructs the
> command to create a checkpoint from the RocksDB instance provided and read
> that instead.
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