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服务节点集群部署,hash算法选择节点时bug

Open 139446702556 opened this issue 3 years ago • 1 comments

SortArrayMapConsistentHash: public void add(long key, String value) { // fix https://github.com/crossoverJie/cim/issues/79 sortArrayMap.clear(); for (int i = 0; i < VIRTUAL_NODE_SIZE; i++) { Long hash = super.hash("vir" + key + i); sortArrayMap.add(hash,value); } sortArrayMap.add(key, value); } TreeMapConsistentHash: public void add(long key, String value) {

    // fix https://github.com/crossoverJie/cim/issues/79
    treeMap.clear();
    for (int i = 0; i < VIRTUAL_NODE_SIZE; i++) {
        Long hash = super.hash("vir" + key + i);
        treeMap.put(hash,value);
    }
    treeMap.put(key, value);
}

master分支上的这两个hash的存储方式的add方法会导致集群部署时,始终只会从最后一个节点中的三个虚拟节点选择,而其他节点都被clear掉了

139446702556 avatar Dec 28 '20 12:12 139446702556

哇,刚好在尝试部署多台 server,感谢指出避坑!

alun2kb avatar Jan 15 '21 07:01 alun2kb