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Posted to issues@hbase.apache.org by "Guanghao Zhang (JIRA)" <ji...@apache.org> on 2019/02/19 12:54:00 UTC
[jira] [Commented] (HBASE-20724) Sometimes some compacted
storefiles are still opened after region failover
[ https://issues.apache.org/jira/browse/HBASE-20724?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16771895#comment-16771895 ]
Guanghao Zhang commented on HBASE-20724:
----------------------------------------
Ping [~toffer]. Do you have any progress here? If not, I plan to fix this. And found this problem when run ITBLL failed because some streamReaders related to HBASE-20704.
> Sometimes some compacted storefiles are still opened after region failover
> --------------------------------------------------------------------------
>
> Key: HBASE-20724
> URL: https://issues.apache.org/jira/browse/HBASE-20724
> Project: HBase
> Issue Type: Bug
> Affects Versions: 3.0.0, 1.3.0, 1.4.0, 1.5.0, 2.0.0
> Reporter: Francis Liu
> Assignee: Guanghao Zhang
> Priority: Critical
> Attachments: HBASE-20724.master.001.patch
>
>
> It is important that compacted storefiles of a given compaction execution are wholly opened or archived to insure data consistency. ie a storefile containing delete tombstones can be archived while older storefiles containing cells that were supposed to be deleted are left unarchived thereby undeleting those cells.
> When a server fails compaction markers (in the wal edit) are used to determine which storefiles are compacted and should be excluded during region open (during failover). But the WALs containing compaction markers can be prematurely archived even though there are still compacted storefiles for that particular compaction event that hasn't been archived yet. Thus losing compaction information that needs to be replayed in the event of an RS crash. This is because hlog archiving logic only keeps track of flushed storefiles and not compacted ones.
> https://issues.apache.org/jira/browse/HBASE-20704?focusedCommentId=16507680&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-16507680
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