It doesn't work. I do get in logs: 23:15:27,579 [http-8080-1-SendThread(zookeeper-02.my.ru:2181)] DEBUG Got ping response for sessionid: 0x246b06d6b0ae108 after 0ms And tha's all I don't get exceptions and response. I use GET operation, no scans or heavy stuff like that.
2014-08-04 22:09 GMT+04:00 Serega Sheypak <[email protected]>: > Thanks, I'll read and inspect. > > > 2014-08-04 21:52 GMT+04:00 anil gupta <[email protected]>: > > Hi Serega, >> >> We have been using this constructor in HBase0.94: >> >> https://hbase.apache.org/0.94/apidocs/org/apache/hadoop/hbase/client/HTable.html#HTable%28byte[],%20org.apache.hadoop.hbase.client.HConnection,%20java.util.concurrent.ExecutorService%29 >> >> This constructor is pretty light weight. But, you will need to manage >> ExecutorService and HConnection by yourself. We create these in our >> context >> at startup and keep on reusing. >> We use this in our web services and we call the HTable constructor for >> every request separately so you will not run into threading issue. >> NOTE: I havent tested this constructor for doing Writes through >> webservices. We have using this for reads. >> >> HTH, >> Anil Gupta >> >> >> >> On Mon, Aug 4, 2014 at 10:44 AM, Serega Sheypak <[email protected] >> > >> wrote: >> >> > Hi, I'm trying to understand how does connection pooling works in HBase. >> > I've seen that >> > >> > >> https://hbase.apache.org/apidocs/org/apache/hadoop/hbase/client/HConnectionManager.html >> > is recommended to use. >> > >> > I have a servlet, it's instance shaed among many threads. >> > What is a good way to use connection pooling in this case? >> > >> > Is this >> > >> > HConnection connection = HConnectionManager.createConnection(config); >> > HTableInterface table = connection.getTable("table1"); >> > try { >> > // Use the table as needed, for a single operation and a single >> thread >> > } finally { >> > table.close(); >> > connection.close(); >> > } >> > >> > >> > 1. enough to reuse connection and they wouldn't be opened each time? >> > 2. why do I have to close ALL: table and connection? It's done by >> design? >> > >> >> >> >> -- >> Thanks & Regards, >> Anil Gupta >> > >
