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Posted to issues@hbase.apache.org by "Lars Hofhansl (JIRA)" <ji...@apache.org> on 2014/09/29 20:34:38 UTC

[jira] [Updated] (HBASE-12114) Meta table cache hashing may access the wrong table

     [ https://issues.apache.org/jira/browse/HBASE-12114?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Lars Hofhansl updated HBASE-12114:
----------------------------------
    Summary: Meta table cache hashing may access the wrong table  (was: meta table cache is broken and cause access the wrong table)

> Meta table cache hashing may access the wrong table
> ---------------------------------------------------
>
>                 Key: HBASE-12114
>                 URL: https://issues.apache.org/jira/browse/HBASE-12114
>             Project: HBase
>          Issue Type: Bug
>          Components: Client
>            Reporter: He Liangliang
>            Assignee: He Liangliang
>             Fix For: 0.94.24
>
>         Attachments: HBASE-12114.patch
>
>
> The cache key used a hash code from a weak hash algorithm Bytes.mapKey(tableName), which can cause collisions in a quite high probability then make the client accessing a wrong region from another table.
> Example: "2fx0" and "2fvn"



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