Bad handshake error when using 5.5.23 with mysql-proxy

Bug #982664 reported by Bernhard Valenti
This bug affects 1 person
Affects Status Importance Assigned to Milestone
Fix Committed
Sergei Golubchik

Bug Description

I just updated a couple of server from 5.2.4 to 5.5.23. Now when I try to connect to them through mysql-proxy (using mysql CLI) I get:

ERROR 1043 (08S01): Bad handshake

the mysql-proxy (0.8.2) log shows:

2012-04-15 17:49:28: (debug) [network-mysqld.c:937]: error on a connection (fd: -1 event: 0). closing client connection.

connecting to the 5.5.23 servers directly works fine. Also some client libraries seem to work (my local php installation for example can connect fine through the proxy)

Revision history for this message
Elena Stepanova (elenst) wrote :

The problem exists in latest releases of 5.2, 5.3, 5.5.
5.1.62 works all right.
In 5.2 line, it started between 5.2.7 and 5.2.8 -- 5.2.7 works fine, 5.2.8 does not.
MySQL 5.5.21 works okay.

We looked into a similar problem some time ago, see bug #904097. That time it was deduced that starting from 5.2.8, server applies stricter requirements to handshake packets and does not accept what it finds malformed, as it did in versions 5.2.7 and earlier. Manifestation of the problem is similar to what is described here, so it may be the same, or have the same root cause.

Bug #904097 was closed because the problem had already been fixed on the client side. This time, the client is mysql-proxy of the latest version (I tried the binary package), so it's probably hard to expect that it will be fixed there.

Changed in maria:
assignee: nobody → Sergei (sergii)
milestone: none → 5.2
Changed in maria:
importance: Undecided → Medium
status: New → Fix Committed
Revision history for this message
Bernhard Valenti (bernhard-valenti) wrote :

Is there any easy way I can test that fix?

Revision history for this message
Sergei Golubchik (sergii) wrote :

you can apply the patch to your tree. Here it is:

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