ELK实验(六)elasticsearch集群搭建
本次实验使用3台虚拟机
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192.168.209.168
192.168.209.169
192.168.209.170
cp /usr/elasticsearch-6.2.3/config/elasticsearch.yml /usr/elasticsearch-6.2.3/config/elasticsearch.yml.bak
vi /usr/elasticsearch-6.2.3/config/elasticsearch.yml
cluster.name: ES_Cluster_Pcdog
node.name: 192.168.209.168
path.data: /usr/elasticsearch-6.2.3/data
path.logs: /usr/elasticsearch-6.2.3/logs
network.host: 192.168.209.168
node.master: true
node.data: true
discovery.zen.ping.unicast.hosts: ["192.168.209.168","192.168.209.169","192.168.209.170"]
discovery.zen.minimum_master_nodes: 3
discovery.zen.fd.ping_timeout: 120s
discovery.zen.fd.ping_retries: 6
discovery.zen.fd.ping_interval: 30s
cluster.routing.allocation.cluster_concurrent_rebalance: 40
cluster.routing.allocation.node_concurrent_recoveries: 40
cluster.routing.allocation.node_initial_primaries_recoveries: 40
bootstrap.memory_lock: false
bootstrap.system_call_filter: false
检查配置,过滤掉注释
cat elasticsearch.yml | grep -v "^#"
node 168 启动
./bin/elasticssearch
集群状态yellow,因为其他2台还没起。。。
[2018-04-20T11:36:16,000][INFO ][o.e.c.r.a.AllocationService] [192.168.209.168] Cluster health status changed from [RED] to [YELLOW] (reason: [shards started [[logstash-2018.04.18][1]] ...]).
配置文件复制到其他2个节点
scp elasticsearch.yml 192.168.209.169:/usr/elasticsearch-6.2.3/config
scp elasticsearch.yml 192.168.209.170:/usr/elasticsearch-6.2.3/config
然后在各自的node启动elasticssearch
node 002
node 003
在master node的目录/usr/elasticsearch-6.2.3/logs
可以看到cluster日志
tail -f ES_Cluster_Pcdog.log
尼玛日志毫无更新,去其他2个节点看,2个node都有报错,难道是我克隆出来的机器的问题? 容我修个错误。
[2018-04-20T11:49:10,794][INFO ][o.e.d.z.ZenDiscovery ] [192.168.209.169] failed to send join request to master [{192.168.209.168}{-aU5102ETMW8isf85FWEHA}{V4flu0jLRfixBA0Yf9740w}{192.168.209.168}{192.168.209.168:9300}], reason [RemoteTransportException[[192.168.209.168][192.168.209.168:9300][internal:discovery/zen/join]]; nested: IllegalArgumentException[can't add node {192.168.209.169}{-aU5102ETMW8isf85FWEHA}{1IesX0gaSZWz2_O3eKDvfw}{192.168.209.169}{192.168.209.169:9300}, found existing node {192.168.209.168}{-aU5102ETMW8isf85FWEHA}{V4flu0jLRfixBA0Yf9740w}{192.168.209.168}{192.168.209.168:9300} with the same id but is a different node instance]; ]
原来是data里面有原来的数据,干掉
[pactera@ELK_002 data]$ pwd
/usr/elasticsearch-6.2.3/data
[pactera@ELK_002 data]$ rm -rf nodes/
3个节点都正常了
node 168 ,发现master 角色169
node 169 ,状态黄变绿
node 170 ,发现master 角色169
稍后我需要研究下如何选举master过程,这个cluster 3个master 3个data,实际生产应该是2个master然后多个data的。
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