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Posted to issues@hbase.apache.org by "huaxiang sun (JIRA)" <ji...@apache.org> on 2016/07/22 02:26:20 UTC

[jira] [Created] (HBASE-16272) Overflow in ServerName's compareTo method

huaxiang sun created HBASE-16272:
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             Summary: Overflow in ServerName's compareTo method
                 Key: HBASE-16272
                 URL: https://issues.apache.org/jira/browse/HBASE-16272
             Project: HBase
          Issue Type: Bug
          Components: hbase
            Reporter: huaxiang sun
            Assignee: huaxiang sun


Looking at the ServerName's compareTo(), 

https://github.com/apache/hbase/blob/master/hbase-common/src/main/java/org/apache/hadoop/hbase/ServerName.java#L303

It converts the return int value by converting long to int like (int)(longValue), which could be incorrect when it overflows, need to replace it with Long.compareTo(a,b).

[~mbertozzi] found some others as well, such as
https://github.com/apache/hbase/blob/master/hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/LruBlockCache.java#L990



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