hi! please have a look https://github.com/apache/storm/tree/master/external/storm-jdbc where you hve to implemnt thw interface connectionprovider interface. you have to dins a third paty librry that provides conection pooloing for postgresql and use that library to implement the interface connection provider. i hope that other community member will give you some other ideas. i hope that these help. regards, florin
On Tuesday, May 3, 2016, Sai Dilip Reddy Kiralam < dkira...@aadhya-analytics.com> wrote: > to implemI'm using storm jdbc for connecting to db.how can I use pooling > on codes on topology.please share information on connection pooling used on > storm topologies. > > > > *Best regards,* > > *K.Sai Dilip Reddy.* > > On Thu, Apr 28, 2016 at 12:28 PM, Sai Dilip Reddy Kiralam < > dkira...@aadhya-analytics.com > <javascript:_e(%7B%7D,'cvml','dkira...@aadhya-analytics.com');>> wrote: > >> Hi Spico, >> >> I use 9 bolts with parallelism of 1 and with 1 task for each >> bolt(default) and I'm not using any ConnectionPool for connecting to >> postgres.Just using jdbc classe examples here is source example >> http://storm.apache.org/releases/2.0.0-SNAPSHOT/storm-jdbc.html. >> I will check by using the ConnectionPool. >> >> Thank you. >> >> >> >> >> *Best regards,* >> >> *K.Sai Dilip Reddy.* >> >> On Thu, Apr 28, 2016 at 12:19 PM, Spico Florin <spicoflo...@gmail.com >> <javascript:_e(%7B%7D,'cvml','spicoflo...@gmail.com');>> wrote: >> >>> Hello! >>> How many tasks do you have for inserting the data to your database? >>> Are you using ConnectionPool for connecting to Postgres? If your number of >>> task superseeds the number of max connections provided in connection pool >>> then your have a problem. >>> Please also check the number of max connections that your db accepts. >>> I hope that these help. >>> Regards, >>> Florin >>> >>> On Thu, Apr 28, 2016 at 7:09 AM, Sai Dilip Reddy Kiralam < >>> dkira...@aadhya-analytics.com >>> <javascript:_e(%7B%7D,'cvml','dkira...@aadhya-analytics.com');>> wrote: >>> >>>> Hi, >>>> >>>> I have topology that make connection with postgresdb and insert the >>>> fields into tables of a test db.my topology is working fine but when I >>>> submit the topology it is establishing all the connections of db.but I >>>> don’t know why it is taking all the max connections. >>>> >>>> >>>> below attached the pics of pg_stat_activity. >>>> >>>> >>>> *Best regards,* >>>> >>>> *K.Sai Dilip Reddy.* >>>> >>> >>> >> >
