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Re: Does MySQL client 4.1.20-2 supported on MySQL Cluster 5.1.20?

From: Hartmut Holzgraefe <hartmut(at)mysql.com>
Date: Fri Sep 07 2007 - 14:17:28 EDT


j j wrote:
> I have MySQL Cluster installed and its version 5.1.20. On another
> machine mysql client is 4.1.20-2 and trying to connect and select some
> record.
>
> Does this cluster/client configuration supported?

mysql client libraries from older versions can connect to more recent servers just fine, they'll just not be able to make use of some newer features.

The only big exeption to this is with pre-4.1 clients and 4.1 or above servers as we had to change the password encoding scheme (it is possible to run newer servers in a backwards compatible mode though).

4.1.x clients and 5.1.x servers can talk to each other just fine though.

But if you are talking about direct cluster NDBAPI then this won't work, the protocol 'spoken' between NDBAPI clients and cluster nodes has changed more often in the past (and not always in a backwards compatible way). So for NDBAPI applications it is best to compile them against the NDBAPI client library version from the same release that is running on the cluster nodes.

-- 
Hartmut Holzgraefe, Principal Support Engineer
               .
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Received on Fri Sep 7 14:17:55 2007

This archive was generated by hypermail 2.1.8 : Sun Oct 07 2007 - 10:15:09 EDT


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