HBASE-28568 Fix incremental backup set shrinking #5876
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The incremental backup set is the set of tables included when an incremental backup is created, it is managed per backup root dir and contains all tables that are present in at least one backup (in that root dir). The incremental backup set can only shrink when backups are deleted. However, the implementation was incorrect, causing this set to never be able to shrink.
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rmdmattingly
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May 7, 2024
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@rmdmattingly added a test. |
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rmdmattingly
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May 8, 2024
hbase-backup/src/test/java/org/apache/hadoop/hbase/backup/TestBackupDelete.java
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The test failure looks relevant |
ndimiduk
approved these changes
May 10, 2024
| @@ -129,20 +128,15 @@ public int deleteBackups(String[] backupIds) throws IOException { | |||
| } | |||
| snapshotDone = true; | |||
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That snapshot logic looks problematic. Is it okay to continue using an existing snapshot? If an existing snapshot exists then we don't know what it contains and this operation should fail. Separate issue I guess?
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I agree it could be problematic. Perhaps the backup repair takes care of this kind of situations, I'm not sure.
But this is a separate issue indeed.
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FYI @rmdmattingly this is one to look into.
hbase-backup/src/main/java/org/apache/hadoop/hbase/backup/impl/BackupAdminImpl.java
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| // Keep only the tables that are present in other backups | ||
| incrTableSet.retainAll(tableMap.keySet()); | ||
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| table.deleteIncrementalBackupTableSet(backupRoot); |
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This API on BackupSystemTable is pretty ham-handed. Would be better if we could delete on the table entries that are being removed, rather than deleting and re-creating the row. I assume the lock taken via startBackupExclusiveOperation() at the beginning of deleteBackups prevents another actor from modifying that row concurrently...
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Test failure looks like a failure of the backup system. It's attempting to take an incremental backup, which assumes the existence of a WAL that no longer exists. The test harness ran the unit test 3 times (once for each of our tested combinations of JDK version + hadoop version) and it failed once in three. I think the failure is not related to this patch but should be tracked as a flakey. @DieterDP-ng are you familiar with this test failure mode? Do we have this issue tracked in an existing ticket? |
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I've encountered that failure while running tests (on the master branch) locally. I thought they always occurred for specific tests for me (because re-runs gave the same outcome), so I thought it had to do with my local setup. But just now I tried running all hbase-backup tests again so I could list the tests that fail for me, but now I only had a single failure for I don't know if there's an existing ticket for them, and haven't done any investigation for it. |
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@DieterDP-ng I filed this as https://issues.apache.org/jira/browse/HBASE-28602 |
ndimiduk
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May 17, 2024
…5876) The incremental backup set is the set of tables included when an incremental backup is created, it is managed per backup root dir and contains all tables that are present in at least one backup (in that root dir). The incremental backup set can only shrink when backups are deleted. However, the implementation was incorrect, causing this set to never be able to shrink. Reviewed-by: Ray Mattingly <[email protected]> Signed-off-by: Nick Dimiduk <[email protected]>
ndimiduk
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May 17, 2024
…5876) The incremental backup set is the set of tables included when an incremental backup is created, it is managed per backup root dir and contains all tables that are present in at least one backup (in that root dir). The incremental backup set can only shrink when backups are deleted. However, the implementation was incorrect, causing this set to never be able to shrink. Reviewed-by: Ray Mattingly <[email protected]> Signed-off-by: Nick Dimiduk <[email protected]>
ndimiduk
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May 17, 2024
…5876) The incremental backup set is the set of tables included when an incremental backup is created, it is managed per backup root dir and contains all tables that are present in at least one backup (in that root dir). The incremental backup set can only shrink when backups are deleted. However, the implementation was incorrect, causing this set to never be able to shrink. Reviewed-by: Ray Mattingly <[email protected]> Signed-off-by: Nick Dimiduk <[email protected]>
ndimiduk
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May 17, 2024
…5876) The incremental backup set is the set of tables included when an incremental backup is created, it is managed per backup root dir and contains all tables that are present in at least one backup (in that root dir). The incremental backup set can only shrink when backups are deleted. However, the implementation was incorrect, causing this set to never be able to shrink. Reviewed-by: Ray Mattingly <[email protected]> Signed-off-by: Nick Dimiduk <[email protected]>
ndimiduk
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May 17, 2024
…5876) The incremental backup set is the set of tables included when an incremental backup is created, it is managed per backup root dir and contains all tables that are present in at least one backup (in that root dir). The incremental backup set can only shrink when backups are deleted. However, the implementation was incorrect, causing this set to never be able to shrink. Reviewed-by: Ray Mattingly <[email protected]> Signed-off-by: Nick Dimiduk <[email protected]>
rmdmattingly
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May 17, 2024
…ly shrink (apache#5876) The incremental backup set is the set of tables included when an incremental backup is created, it is managed per backup root dir and contains all tables that are present in at least one backup (in that root dir). The incremental backup set can only shrink when backups are deleted. However, the implementation was incorrect, causing this set to never be able to shrink. Reviewed-by: Ray Mattingly <[email protected]> Signed-off-by: Nick Dimiduk <[email protected]>
rmdmattingly
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May 17, 2024
…ly shrink (apache#5876) The incremental backup set is the set of tables included when an incremental backup is created, it is managed per backup root dir and contains all tables that are present in at least one backup (in that root dir). The incremental backup set can only shrink when backups are deleted. However, the implementation was incorrect, causing this set to never be able to shrink. Reviewed-by: Ray Mattingly <[email protected]> Signed-off-by: Nick Dimiduk <[email protected]>
ndimiduk
reviewed
May 17, 2024
| @@ -30,6 +31,7 @@ | |||
| import org.apache.hadoop.hbase.testclassification.LargeTests; | |||
| import org.apache.hadoop.hbase.util.EnvironmentEdge; | |||
| import org.apache.hadoop.hbase.util.EnvironmentEdgeManager; | |||
| import org.apache.hadoop.thirdparty.com.google.common.collect.Sets; | |||
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This should be using org.apache.hbase.thirdparty.com.google.common.collect.Sets, not the hadoop one. Backports to branch-2 fail because hadoop didn't have shaded jars in Hadoop 2.x
ndimiduk
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May 17, 2024
…5876) The incremental backup set is the set of tables included when an incremental backup is created, it is managed per backup root dir and contains all tables that are present in at least one backup (in that root dir). The incremental backup set can only shrink when backups are deleted. However, the implementation was incorrect, causing this set to never be able to shrink. Reviewed-by: Ray Mattingly <[email protected]> Signed-off-by: Nick Dimiduk <[email protected]>
ndimiduk
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May 17, 2024
…5876) The incremental backup set is the set of tables included when an incremental backup is created, it is managed per backup root dir and contains all tables that are present in at least one backup (in that root dir). The incremental backup set can only shrink when backups are deleted. However, the implementation was incorrect, causing this set to never be able to shrink. Reviewed-by: Ray Mattingly <[email protected]> Signed-off-by: Nick Dimiduk <[email protected]>
ndimiduk
pushed a commit
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May 17, 2024
…5876) The incremental backup set is the set of tables included when an incremental backup is created, it is managed per backup root dir and contains all tables that are present in at least one backup (in that root dir). The incremental backup set can only shrink when backups are deleted. However, the implementation was incorrect, causing this set to never be able to shrink. Reviewed-by: Ray Mattingly <[email protected]> Signed-off-by: Nick Dimiduk <[email protected]>
ndimiduk
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May 18, 2024
The incremental backup set is the set of tables included when an incremental backup is created, it is managed per backup root dir and contains all tables that are present in at least one backup (in that root dir). The incremental backup set can only shrink when backups are deleted. However, the implementation was incorrect, causing this set to never be able to shrink. Reviewed-by: Ray Mattingly <[email protected]> Signed-off-by: Nick Dimiduk <[email protected]>
ndimiduk
pushed a commit
that referenced
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May 18, 2024
The incremental backup set is the set of tables included when an incremental backup is created, it is managed per backup root dir and contains all tables that are present in at least one backup (in that root dir). The incremental backup set can only shrink when backups are deleted. However, the implementation was incorrect, causing this set to never be able to shrink. Reviewed-by: Ray Mattingly <[email protected]> Signed-off-by: Nick Dimiduk <[email protected]>
ndimiduk
pushed a commit
that referenced
this pull request
May 18, 2024
The incremental backup set is the set of tables included when an incremental backup is created, it is managed per backup root dir and contains all tables that are present in at least one backup (in that root dir). The incremental backup set can only shrink when backups are deleted. However, the implementation was incorrect, causing this set to never be able to shrink. Reviewed-by: Ray Mattingly <[email protected]> Signed-off-by: Nick Dimiduk <[email protected]>
vinayakphegde
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May 21, 2024
…5876) The incremental backup set is the set of tables included when an incremental backup is created, it is managed per backup root dir and contains all tables that are present in at least one backup (in that root dir). The incremental backup set can only shrink when backups are deleted. However, the implementation was incorrect, causing this set to never be able to shrink. Reviewed-by: Ray Mattingly <[email protected]> Signed-off-by: Nick Dimiduk <[email protected]>
ndimiduk
pushed a commit
to HubSpot/hbase
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May 21, 2024
…ly shrink (apache#5876) The incremental backup set is the set of tables included when an incremental backup is created, it is managed per backup root dir and contains all tables that are present in at least one backup (in that root dir). The incremental backup set can only shrink when backups are deleted. However, the implementation was incorrect, causing this set to never be able to shrink. Reviewed-by: Ray Mattingly <[email protected]> Signed-off-by: Nick Dimiduk <[email protected]>
ndimiduk
pushed a commit
to HubSpot/hbase
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May 21, 2024
…ly shrink (apache#5876) The incremental backup set is the set of tables included when an incremental backup is created, it is managed per backup root dir and contains all tables that are present in at least one backup (in that root dir). The incremental backup set can only shrink when backups are deleted. However, the implementation was incorrect, causing this set to never be able to shrink. Reviewed-by: Ray Mattingly <[email protected]> Signed-off-by: Nick Dimiduk <[email protected]>
rmdmattingly
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Jul 10, 2024
…ly shrink (apache#5876) (#96) * HubSpot Backport: HBASE-28568 Incremental backup set does not correctly shrink (apache#5876) The incremental backup set is the set of tables included when an incremental backup is created, it is managed per backup root dir and contains all tables that are present in at least one backup (in that root dir). The incremental backup set can only shrink when backups are deleted. However, the implementation was incorrect, causing this set to never be able to shrink. Reviewed-by: Ray Mattingly <[email protected]> Signed-off-by: Nick Dimiduk <[email protected]> * HubSpot Backport: HBASE-28568 Incremental backup set does not correctly shrink (addendum) (apache#5917) Import the correct shaded Guava and run spotless:apply. Signed-off-by: Duo Zhang <[email protected]> --------- Signed-off-by: Nick Dimiduk <[email protected]> Signed-off-by: Duo Zhang <[email protected]> Co-authored-by: DieterDP <[email protected]>
rmdmattingly
pushed a commit
to HubSpot/hbase
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Jul 10, 2024
…ly shrink (apache#5876) (#97) * HubSpot Backport: HBASE-28568 Incremental backup set does not correctly shrink (apache#5876) The incremental backup set is the set of tables included when an incremental backup is created, it is managed per backup root dir and contains all tables that are present in at least one backup (in that root dir). The incremental backup set can only shrink when backups are deleted. However, the implementation was incorrect, causing this set to never be able to shrink. Reviewed-by: Ray Mattingly <[email protected]> Signed-off-by: Nick Dimiduk <[email protected]> * HubSpot Backport: HBASE-28568 Incremental backup set does not correctly shrink (addendum) (apache#5917) Import the correct shaded Guava and run spotless:apply. Signed-off-by: Duo Zhang <[email protected]> --------- Signed-off-by: Nick Dimiduk <[email protected]> Signed-off-by: Duo Zhang <[email protected]> Co-authored-by: DieterDP <[email protected]>
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The incremental backup set is the set of tables included when an incremental backup is created, it is managed per backup root dir and contains all tables that are present in at least one backup (in that root dir).
The incremental backup set can only shrink when backups are deleted. However, the implementation was incorrect, causing this set to never be able to shrink.