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Posted to issues@hbase.apache.org by "He Liangliang (JIRA)" <ji...@apache.org> on 2014/09/29 12:13:33 UTC

[jira] [Created] (HBASE-12114) meta table cache is broken and cause access the wrong table

He Liangliang created HBASE-12114:
-------------------------------------

             Summary: meta table cache is broken and cause 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


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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