November 16, 2007 The pgpool Global Development Group is pleased to announce the release of pgpool-II 2.0 beta1, a new version of open source middle ware to enhance the reliability and performance of PostgreSQL.
* pgpool-II 2.0 http://pgfoundry.org/frs/download.php/1515/pgpool-II-2.0.tar.gz pgpool-II 2.0 has lots of new features and bug fixes. Enjoy! 2.0 (hikitsuboshi) 2007/11/16 * Version 2.0 * Incompatibility since pgpool-II 1.x - the default value for ignore_leading_white_space is now true(Yoshiyuki) - replicate_strict is removed. The value is always true(Yoshiyuki) * General - Allow to reload pgpool.conf(Yoshiyuki) - The paraser is now compatible with PostgreSQL 8.3(Yoshiyuki) - Add new directive "failover_command" to specify command when a node is detached(Yoshiyuki) - Add new directive "client_idle_limit" to specify the time out since the last command is arrived from a client(Tatsuo) * Replication - Always start a new transaction even if the query is not in an explicit transaction to enhance the reliabilty of replication(Yoshiyuki) - Enhance the performance of replication for write queries. Now the worst case is 1/2 compared with single DB node regardless the number of DB nodes. Previous release tends to degrade according to the numer of DB nodes(Yoshiyuki) - Add "online recovery" which allows to add a DB node and sync with other DB nodes without stopping the pgpool server(Yoshiyuki) - Abort a transaction if INSERT, UPDATE and DELETE reports different number of result rows(Yoshiyuki) x=# update t set a = a + 1; ERROR: pgpool detected difference of the number of update tuples HINT: check data consistency between master and other db node - If the results from DB nodes do not match, select the possible correct result by "decide by majority". Previous release always trust the result of the master DB node(Yoshiyuki) - Allow load balance in V2 frontend/backend protocol(Yoshiyuki) * Parallel query - Allow "partial replication" to enhance the performance of the parallel query(Yoshiharu) -- Yoshiyuki Asaba [EMAIL PROTECTED] _______________________________________________ Pgpool-general mailing list [email protected] http://pgfoundry.org/mailman/listinfo/pgpool-general
