Hi, Andery: Sorry for late reply, I found that the way I changed Marshaller may be incorrect, because after I changed the configuration options, the error log was all the same and was still about ”JDKmashaller“. I use the JDK version is 1.7 .0_07, ignite 1.6 , and i'm running the TPC-DS test on Ignite-Enhanced Hive, the test method address is "https://github.com/hortonworks/hive-testbench.git”. To change the Marshaller, I just added this property to the configuration file witch used to start ingite : <bean id="grid.cfg" class="org.apache.ignite.configuration.IgniteConfiguration"> <bean id="grid.custom.cfg" class="org.apache.ignite.configuration.IgniteConfiguration" singleton="true"> ... <property name="marshaller"> <bean class="org.apache.ignite.marshaller.optimized.OptimizedMarshaller"> <property name="requireSerializable">true</property> </bean> </property> ... </bean> Thanks.
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