November 1, 2007 pgpool Global Development Group are 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 beta1 http://pgfoundry.org/frs/download.php/1502/pgpool-II-2.0-beta1.tar.gz * pgpoolAdmin 2.0 beta1 http://pgfoundry.org/frs/download.php/1503/pgpoolAdmin-2.0.0-beta1.tar.gz pgpool-II 2.0 has lots of new features and bug fixes. Users are encouraged to test the beta version before the final release to find bugs and any other problems. If you find anything wrong with it, please let us know via the mailing lists. 2.0 (hikitsuboshi) 2007/11/xx * 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
