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From Doug Cutting <cutt...@apache.org>
Subject Re: upgrading to Avro 1.7.5
Date Thu, 23 Jan 2014 19:58:15 GMT
As others have noted, the data format has not changed and should be compatible.

The performance difference you note is curious.  I wonder if this
could be related to the following issue?


You could try the 1.7.6 release candidate to test this:


The 1.7.6-rc0 Maven staging repository is at:



On Wed, Jan 22, 2014 at 8:29 AM, Jun Rao <junrao@gmail.com> wrote:
> Hi,
> We are on Avro 1.4.0 and plan to upgrade to Avro 1.7.5. Is the binary
> encoding 100% compatible btw the 2 versions? Also, I did some perf testing
> and it seems that on average, 1.7.5 is about 6% faster on encoding and 20%
> slower on decoding compared with 1.4.0. Is the degradation on decoding
> performance expected (though the absolute decoding time is much smaller,
> typically 1/3 of the encoding time)? Finally, are there enough critical bug
> fixes/improvements to motivate such an upgrade?
> Thanks,
> Jun

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