Hi Gordon, Thanks a lot for your reply.
The properties mentioned in mail trail are just an example. Actual properties that we want to set are as given below: set yarn.nodemanager.resource.memory-mb=16384; set mapreduce.map.memory.mb=2048; set mapreduce.reduce.memory.mb=2048; set mapreduce.map.java.opts=-Xmx2048M; set yarn.app.mapreduce.am.command-opts=-Xmx2048m; Please suggest. Thanks Rinku Garg From: Gordon Wang [mailto:gw...@gopivotal.com] Sent: Friday, March 07, 2014 11:49 AM To: user@hive.apache.org Subject: Re: Setting | Verifying | Hive Query Parameters from Java The 2 following props are for hive server2. I don't think you can change it in your jdbc session. I am wondering why you need to change them in your jdbc connection. props.setProperty(hive.server2.async.exec.threads,50); props.setProperty(hive.server2.thrift.max.worker.threads,500); You can set props in your jdbc connetion with HQL like "propA=valueA;" More, your connection url is for hive server, it does not work for hive server2. If you need to use hive server2, you have to use jdbc:hive2://master149:10000/default On Tue, Mar 4, 2014 at 7:43 PM, Garg, Rinku <rinku.g...@fisglobal.com<mailto:rinku.g...@fisglobal.com>> wrote: Hi All, We have installed CDH4.2.0 and hive-0.10.0-cdh4.2.0. Both are working as desired. We need to set hive configuration parameter from Java while making JDBC connection. We have written a java program to execute queries on hive server with some configurations properties setting dynamically . We are doing it as below CONNECTION_URL=jdbc:hive://master149:10000/default Next, we are doing following method to set properties through java props.setProperty(hive.server2.async.exec.threads,50); props.setProperty(hive.server2.thrift.max.worker.threads,500); props.setProperty(hive.groupby.orderby.position.alias,false); and a hive connection is made as given below hiveConnection = DriverManager.getConnection(connectionURL,props); by above steps when a hive connection is made using hive-jdbc and we are getting hive query results as desired. QUERY: 1. Are we doing rightly for setting up the hive properties, if yes then how can we verify that? 2. If the above is not the right way, then how can we achieve setting hive configuration parameters from Java using JDBC? Thanks Rinku Garg _____________ The information contained in this message is proprietary and/or confidential. If you are not the intended recipient, please: (i) delete the message and all copies; (ii) do not disclose, distribute or use the message in any manner; and (iii) notify the sender immediately. In addition, please be aware that any message addressed to our domain is subject to archiving and review by persons other than the intended recipient. Thank you. -- Regards Gordon Wang _____________ The information contained in this message is proprietary and/or confidential. If you are not the intended recipient, please: (i) delete the message and all copies; (ii) do not disclose, distribute or use the message in any manner; and (iii) notify the sender immediately. In addition, please be aware that any message addressed to our domain is subject to archiving and review by persons other than the intended recipient. Thank you.
