Hi , I have some question about upgrade ELK from 6.x to 7.0.
Nodes: elasticsearch-0, elasticsearch-1
Part of Elasticsearch 6.7.0 yaml
spec:
containers:
- env:
#- name: cluster.initial_master_nodes
# value: elasticsearch-0.es
- name: cluster.name
value: elasticsearch-cluster
- name: node.name
valueFrom:
fieldRef:
apiVersion: v1
fieldPath: metadata.name
- name: discovery.seed_hosts
value: elasticsearch-0.es,elasticsearch-1.es
- name: ES_JAVA_OPTS
value: -Xms3g -Xmx3g
- name: cluster.remote.connect
value: "true"
image: docker.elastic.co/elasticsearch/elasticsearch:7.0.0
imagePullPolicy: IfNotPresent
name: elasticsearch
On Kibana-dev_tools
GET _cat/nodes?v
ip heap.percent ram.percent cpu load_1m load_5m load_15m node.role master name
10.12.16.12 16 92 25 1.21 1.79 1.39 mdi - elasticsearch-1
10.12.16.10 16 92 25 1.21 1.79 1.39 mdi * elasticsearch-0
GET _cat/master?v
id host ip node
rnjEQ3gfQuO50giXbgE8sw 10.12.16.10 10.12.16.10 elasticsearch-0
Part of Elasticsearch 7.0.0 yaml
spec:
containers:
- env:
- name: cluster.initial_master_nodes
value: elasticsearch-0.es
- name: cluster.name
value: elasticsearch-cluster
- name: node.name
valueFrom:
fieldRef:
apiVersion: v1
fieldPath: metadata.name
- name: discovery.seed_hosts
value: elasticsearch-0.es,elasticsearch-1.es
- name: ES_JAVA_OPTS
value: -Xms3g -Xmx3g
- name: cluster.remote.connect
value: "true"
image: docker.elastic.co/elasticsearch/elasticsearch:7.0.0
Sometimes cat master or nodes return different node info.
On Kibana-dev_tools
GET _cat/master?v
id host ip node
s9jkuIrTSdeP4mJ-QgzbVQ 10.0.1.25 10.0.1.25 elasticsearch-0
GET _cat/master?v
id host ip node
R5DcgRMvQH60HjaEY6A-kA 10.0.5.20 10.0.5.20 elasticsearch-1
GET _cat/nodes?v
ip heap.percent ram.percent cpu load_1m load_5m load_15m node.role master name
10.0.5.20 49 79 33 0.82 0.83 1.09 mdi * elasticsearch-1
GET _cat/nodes?v
ip heap.percent ram.percent cpu load_1m load_5m load_15m node.role master name
10.0.1.25 29 81 33 0.20 0.32 0.52 mdi * elasticsearch-0
1. Output cat/nodes return different node every time.
In 6.7.0 it seem normal.
But in 7.0.0, "_cat/nodes?v" return the different node every time.
Reference for setting up ELK 6.7.0 on GKE
2. Logstash didn't use the default index indices
default index: "logstash-%{+YYYY.MM.dd}".
output {
elasticsearch { hosts => ["10.138.15.211:9200"]}
}
It use "logstash" as index indices.
3. In my case. Should I config "cluster.initial_master_nodes" ?
- name: cluster.initial_master_nodes
value: elasticsearch-0.es, elasticsearch-1.es
