Server health check being called from each pool

[Michael Bushey]

I have a master-master-master MySQL DB cluster, but run into deadlocks
if writes from one web node are across multiple DB servers, so I have
this:

   listen QA-Single-DB1:23321
    bind 127.0.0.1:23321
    option httpchk
    default-server port 9200 inter 5000 fastinter 2000 rise 2 fall 2
    server db1 db1:3306 check
    server db2 db2:3306 check backup
    server db3 db3:3306 check backup

  listen QA-Single-DB2:23322
    bind 127.0.0.1:23322
    option httpchk
    default-server port 9200 inter 5000 fastinter 2000 rise 2 fall 2
    server db2 db2:3306 check
    server db3 db3:3306 check backup
    server db1 db1:3306 check backup

  listen QA-Single-DB3:23323
    bind 127.0.0.1:23323
    option httpchk
    default-server port 9200 inter 5000 fastinter 2000 rise 2 fall 2
    server db3 db3:3306 check
    server db1 db1:3306 check backup
    server db2 db2:3306 check backup


This works, but each listen section is doing a health check. Is there
any way to specify the health check as a global default? Not having
"backup" and using "balance source" would almost work, but I have
multiple sites on one server. I would like the sites spread out over
the the three DB servers but with fail-over.

Thanks for any help/insight/comments!
Michael