ElasticSearch7.0添加数据提示提示503错误

Elastic Search成功安装完毕。

测试数据添加出现

{
    "error": {
        "root_cause": [
            {
                "type": "cluster_block_exception",
                "reason": "blocked by: [SERVICE_UNAVAILABLE/1/state not recovered / initialized];[SERVICE_UNAVAILABLE/2/no master];",
                "suppressed": [
                    {
                        "type": "master_not_discovered_exception",
                        "reason": null
                    }
                ]
            }
        ],
        "type": "cluster_block_exception",
        "reason": "blocked by: [SERVICE_UNAVAILABLE/1/state not recovered / initialized];[SERVICE_UNAVAILABLE/2/no master];",
        "suppressed": [
            {
                "type": "master_not_discovered_exception",
                "reason": null
            }
        ]
    },
    "status": 503
}

Elastic Search 日志：

[2019-05-23T23:07:10,500][WARN ][o.e.c.c.ClusterFormationFailureHelper] [wei] master not discovered yet, this node has not previously joined a bootstrapped (v7+) cluster, and this node must discover master-eligible nodes [node-1] to bootstrap a cluster: have discovered []; discovery will continue using [127.0.0.1:9300, 127.0.0.1:9301, 127.0.0.1:9302, 127.0.0.1:9303, 127.0.0.1:9304] from hosts providers and [{wei}{PRIUiwNlS3iosprI-SrhAg}{y4smTin2RZipIaDS7cc6qQ}{172.21.0.11}{172.21.0.11:9300}{ml.machine_memory=1928081408, xpack.installed=true, ml.max_open_jobs=20}] from last-known cluster state; node term 0, last-accepted version 0 in term 0

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解决办法：

1、先关闭Elastic，【只有一个java服务，所以直接killall 】

killall java

2、释放下内存，查看内存是否释放成功

echo 3 > /proc/sys/vm/drop_caches

free -m

3、找到elastic的config 目录

mv elasticsearch.yml elasticsearch.yml.bak

4、尝试启动一下Elastic Search，启动完成之后看下9200和9300是否占用

bin/elasticsearch &

5、然后再把Elastic Search关闭  【：捂脸】

killall java

6、再把备份的文件还原一下【：捂脸】

cp elasticsearch.yml.bak elasticsearch.yml

7、尝试重新启动一下【：捂脸】

bin/elasticsearch &

8、查看端口是否启用，浏览器输入 ip:9200，在使用postman测试一下，成功添加

{
"_index": "shopuser",
"_type": "_doc",
"_id": "1",
"_version": 1,
"result": "created",
"_shards": {
"total": 2,
"successful": 1,
"failed": 0
},
"_seq_no": 0,
"_primary_term": 1
}

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具体没有找到，这样走了一遍，问题解决了，感觉可能是缓存导致的，需要下次在验证一下