Hi, Please clarify what are you trying to achieve? >From logs I see the Ignite grid instance tries to start several times. Please check the ServletContextListenerStartup class for example how to correctly start Ignite in the servlet environment:
https://github.com/apache/ignite/blob/master/modules/web/src/main/java/org/apache/ignite/startup/servlet/ServletContextListenerStartup.java 2016-05-05 17:24 GMT+03:00 Andrey Gura <ag...@gridgain.com>: > Hi, > > In order to start clint node you should just execute code like this: > > Ignition.setClientMode(true); > Ignition.start(); > > In this case client node with default configuration will be started. Of > course you can provide own IgniteConfiguration programatically: > > IgniteConfiguration cfg = new IgniteConfiguration(); > cfg.setClientMode(true); > // ... other settings > Ignition.start(cfg); > > or using Spring configuration files: > > <beans xmlns="http://www.springframework.org/schema/beans"; > xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; > xsi:schemaLocation="http://www.springframework.org/schema/beans > > http://www.springframework.org/schema/beans/spring-beans.xsd";> > > <bean id="ignite.cfg" > class="org.apache.ignite.configuration.IgniteConfiguration"> > > <property name="clientMode" value="true"/> > > <!-- Explicitly configure TCP discovery SPI to provide list of > initial nodes. --> > <property name="discoverySpi"> > <bean > class="org.apache.ignite.spi.discovery.tcp.TcpDiscoverySpi"> > <property name="ipFinder"> > <!-- > Ignite provides several options for automatic > discovery that can be used > instead os static IP based discovery. For > information on all options refer > to our documentation: > http://apacheignite.readme.io/docs/cluster-config > --> > <!-- Uncomment static IP finder to enable static-based > discovery of initial nodes. --> > <!--<bean > class="org.apache.ignite.spi.discovery.tcp.ipfinder.vm.TcpDiscoveryVmIpFinder">--> > <bean > class="org.apache.ignite.spi.discovery.tcp.ipfinder.multicast.TcpDiscoveryMulticastIpFinder"> > <property name="addresses"> > <list> > <!-- In distributed environment, replace > with actual host IP address. --> > <value>127.0.0.1:47500..47509</value> > </list> > </property> > </bean> > </property> > </bean> > </property> > </bean> > > </beans> > > > If you want use JDBC drievr for connection to Ignite cluster there is no > need to create any client nodes. > > > On Thu, May 5, 2016 at 5:33 AM, minisoft_rm <minisoft...@hotmail.com> > wrote: > >> Dear all, >> i searched a number of topics here. but still don't know how to start and >> use ignite (in client mode) from Tomcat.... you know, I launched the >> standalone ignite as server node. >> >> my code in tomcat web app like this:" >> >> this.ignite = >> Ignition.start(ClientConfigurationFactory.createConfiguration()); >> >> >> Class.forName("org.apache.ignite.IgniteJdbcDriver"); >> this.conn = DriverManager >> >> .getConnection("jdbc:ignite:cfg://cache=b2c_accCache >> @file:///Users/i306576/Documents/ignite/apache-ignite-fabric-1.5.0.final-bin/examples/config/ignite-jdbc.xml"); >> this.cartCacher = new CartCacher(); >> this.ic = ignite.cache("b2c_accCache"); >> >> " >> >> the console log show some error mes I don't understand..." >> Caused by: class org.apache.ignite.IgniteCheckedException: Ignite instance >> with this name has already been started: b2c_acc >> " >> >> :-( the thing is.... this kind of client mode is ok without Tomcat... >> >> please help~~ >> >> >> >> >> -- >> View this message in context: >> http://apache-ignite-users.70518.x6.nabble.com/How-to-start-and-use-ignite-in-Tomcat-tp4776.html >> Sent from the Apache Ignite Users mailing list archive at Nabble.com. >> > > > > -- > Andrey Gura > GridGain Systems, Inc. > www.gridgain.com > -- Best regards, Alexei Scherbakov
