Each Jet member or client, will have a respective underlying Hazelcast member or client. Please refer to the Hazelcast Reference Manual for specific configuration options for Hazelcast IMDG.
Programmatic
The underlying Hazelcast IMDG member can be configured as follows:
JetConfig jetConfig = new JetConfig();
jetConfig.getHazelcastConfig().getGroupConfig().setName("test");
JetInstance jet = Jet.newJetInstance(jetConfig);
The underlying Hazelcast IMDG client can be configured as follows:
ClientConfig clientConfig = new ClientConfig();
clientConfig.getGroupConfig().setName("test");
JetInstance jet = Jet.newJetClient(clientConfig);
Declarative
The underlying Hazelcast IMDG configuration can also be updated declaratively. Please refer to the Hazelcast Reference Manual for information on how to do this.