CacheConfiguration cc = new CacheConfiguration();

    cc.setName("mycache");
    cc.setCacheMode(CacheMode.PARTITIONED);
    cc.setOnheapCacheEnabled(true);
    cc.setEvictionPolicy(new LruEvictionPolicy(5));

    IgniteConfiguration cfg = new IgniteConfiguration();
    cfg.setCacheConfiguration(cc);

    Ignite ignite = Ignition.start(cfg);

    IgniteCache<String,String> cache = ignite.getOrCreateCache(cc);

    for(int  i=0;i<10;i++){
        cache.put("k"+i,"val-"+i);
    }

    Thread.sleep(1000);

    for(int  i=0;i<10;i++) {
        System.out.println(cache.get("k"+i));
    }

    System.out.println("============================== " + cache.metrics().getSize());