how log files are created in berkelydb java edition db base api

we are using berkeleydb java edition db base api, we have already read/write CDRFile of 9 lack rows with transaction and without transaction implementing secondary database concept the issues we are getting are as follows:-

with transaction----------size of database environment 1.63gb which is due to no. of log files created each 开发者_StackOverflow中文版of 10 mb.

without transaction-------size of database environment 588mb and here only one log file is created which is of 10mb. so we want to know how this happens..

how log files are created and what is meant of using transaction and not using transaction in db environment and what are this db files _db.001,_db.002,_db.003,_db.004,__db.005 and log files like log.0000000001.....plz reply soon

It looks like this question was already answered here what are log files and why they are created during transaction in berkeleydb core api(dbapi)?.

From your description it actually looks like you're using Berkeley DB core, not Java Edition. __db.001 through __db.005 are the shared region system environment files. The environment files are described here. The log.* files are the transaction log files. The transaction log files are described in the answer referenced above.

These types of questions can often be more easily/quickly answered on the Berkeley DB forum on OTN.

Regards,

Dave