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From Adrien Mogenet <adrien.moge...@gmail.com>
Subject Re: Thread safety of Bytes.compareTo(byte[] left, byte[] right)
Date Thu, 10 Oct 2013 12:59:03 GMT
Hi,

A static method does not necessary mean that this could lead to a
thread-safety issue. In that case, there is no shared resources between
threads and thus... nothing to protect.


On Thu, Oct 10, 2013 at 8:56 AM, anil gupta <anilgupta84@gmail.com> wrote:

> Hi All,
>
> I have to use
>  *Bytes.compareTo<
> http://hbase.apache.org/apidocs/org/apache/hadoop/hbase/util/Bytes.html#compareTo%28byte[],%20byte[]%29
> >
> *(byte[] left, byte[] right) method in one of my coprocessor(HBASE-7474)
> stuff. Basically, i want to do comparison on the basis of Lexicographical
> order of byte[] of cell value. Similar to BinaryComparator in HBase.
>
> Since, *Bytes.compareTo<
> http://hbase.apache.org/apidocs/org/apache/hadoop/hbase/util/Bytes.html#compareTo%28byte[],%20byte[]%29
> >
> *(byte[] left, byte[] right) is static method and it doesnt have any
> synchronization. How do we guarantee that this method is thread safe? I am
> curious to know is it safe to use the static method on
> RegionServer(multithreaded environment)?
>
> Please correct me if i stated something wrong above.
>
> --
> Thanks & Regards,
> Anil Gupta
>



-- 
Adrien Mogenet
http://www.borntosegfault.com

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