Have had a problem a couple of times with PGPool and kind mismatches from the 
backends.


Nov 30 11:24:25 psql-1 pgpool: 2010-11-30 11:24:25 ERROR: pid 7958: 
read_kind_from_backend: 1 th kind D does not match with master or majority 
connection kind C
Nov 30 11:24:25 psql-1 pgpool: 2010-11-30 11:24:25 ERROR: pid 7958: kind 
mismatch among backends. Possible last query was: "/* named HQL query 
AccessControlCacheBuffer.findAll */ select accesscont0_.id as id235_, 
accesscont0_.c_action as c2_235_, accesscont0_.c_currentversion as c3_235_, 
accesscont0_.c_entityid as c4_235_, accesscont0_.c_type as c5_235_ from 
t_accesscontrolcachebuffer accesscont0_ order by accesscont0_.id limit $1" kind 
details are: 0[C] 1[D]
Nov 30 11:24:25 psql-1 pgpool: 2010-11-30 11:24:25 LOG:   pid 7958: do_child: 
exits with status 1 due to error

Is there anything that needs to be done to ensure that this doesn't happen?

Running, pgpool-II version 2.3.2.1 on Ubuntu 10.04 LTS.



Tim.

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