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HDDS-15155. Add ozone debug ldb drop_column_family subcommand#10167

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smengcl wants to merge 2 commits intoapache:masterfrom
smengcl:HDDS-15155-drop-cf
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HDDS-15155. Add ozone debug ldb drop_column_family subcommand#10167
smengcl wants to merge 2 commits intoapache:masterfrom
smengcl:HDDS-15155-drop-cf

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@smengcl
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@smengcl smengcl commented May 1, 2026

Generated-by: GPT-5.5

What changes were proposed in this pull request?

Add drop_column_family subcommand under ozone debug ldb.

e.g.

ozone debug ldb --db /path/to/om.db drop_column_family --cf snapshotInfoTable -y

What is the link to the Apache JIRA

https://issues.apache.org/jira/browse/HDDS-15155

How was this patch tested?

  • Added unit test and integration test

@smengcl smengcl force-pushed the HDDS-15155-drop-cf branch from c789942 to a2721f7 Compare May 1, 2026 01:54
@smengcl smengcl added the tools Tools that helps with debugging label May 1, 2026
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@adoroszlai adoroszlai left a comment

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Thanks @smengcl for the patch.

@jojochuang
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jojochuang commented May 1, 2026

looks good

@smengcl smengcl marked this pull request as ready for review May 1, 2026 18:49
Copilot AI review requested due to automatic review settings May 1, 2026 18:49
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Pull request overview

Adds a new ozone debug ldb subcommand to drop a RocksDB column family, along with unit/integration tests and user documentation to support safe usage.

Changes:

  • Add drop-column-family subcommand to ozone debug ldb for dropping a specified column family (with interactive confirmation by default).
  • Add unit tests covering success, error cases, confirmation behavior, and failure when DB is already open.
  • Add an integration test validating dropping snapshotInfoTable from an OM DB checkpoint, plus documentation updates.

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 1 comment.

Show a summary per file
File Description
hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/shell/TestOzoneDebugShell.java Adds integration coverage for dropping snapshotInfoTable from an OM checkpoint DB.
hadoop-ozone/cli-debug/src/test/java/org/apache/hadoop/ozone/debug/ldb/TestDropColumnFamily.java Adds unit tests for the new drop-column-family command (including confirmations and DB-open failure).
hadoop-ozone/cli-debug/src/main/java/org/apache/hadoop/ozone/debug/ldb/RDBParser.java Registers DropColumnFamily as an ozone debug ldb subcommand.
hadoop-ozone/cli-debug/src/main/java/org/apache/hadoop/ozone/debug/ldb/DropColumnFamily.java Implements the new drop-column-family command.
hadoop-hdds/docs/content/tools/debug/Ldb.md Documents the new command and its confirmation behavior.

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Comment on lines +44 to +46
@CommandLine.Command(
name = "drop-column-family",
description = "Drop a column family from the DB.")
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4 participants