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Posted to hdfs-issues@hadoop.apache.org by "Yiqun Lin (JIRA)" <ji...@apache.org> on 2016/08/18 01:47:20 UTC
[jira] [Updated] (HDFS-10769) BlockIdManager.clear doesn't reset
the counter for blockGroupIdGenerator
[ https://issues.apache.org/jira/browse/HDFS-10769?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Yiqun Lin updated HDFS-10769:
-----------------------------
Attachment: HDFS-10769.001.patch
> BlockIdManager.clear doesn't reset the counter for blockGroupIdGenerator
> ------------------------------------------------------------------------
>
> Key: HDFS-10769
> URL: https://issues.apache.org/jira/browse/HDFS-10769
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: hdfs
> Affects Versions: 3.0.0-alpha1, 3.0.0-beta1
> Reporter: Ewan Higgs
> Assignee: Yiqun Lin
> Priority: Minor
> Labels: newbie
> Attachments: HDFS-10769.001.patch
>
>
> BlockIdManager.clear resets the block id generator for contiguous blocks but not for striped blocks:
> {code}
> void clear() {
> legacyGenerationStamp.setCurrentValue(GenerationStamp.LAST_RESERVED_STAMP);
> generationStamp.setCurrentValue(GenerationStamp.LAST_RESERVED_STAMP);
> getBlockIdGenerator().setCurrentValue(SequentialBlockIdGenerator
> .LAST_RESERVED_BLOCK_ID);
> legacyGenerationStampLimit = HdfsConstants.GRANDFATHER_GENERATION_STAMP;
> }
> {code}
> This should have:
> {code}
> getBlockGroupIdGenerator().setCurrentValue(Long.MIN_VALUE);
> {code}
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