private String getGroupId(String key) {
        return groups.get(HashUtils.getHeadKey(groups, key));
    }
A counter client
@author boyan (boyan@alibaba-inc.com)

2018-Apr-25 4:08:14 PM
jraft-test/src/main/java/com/alipay/sofa/jraft/test/atomic/client/AtomicClient.java