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最新评论
-
panamera:
如果设置了连接需要密码,Dynamic Broker-Clus ...
ActiveMQ 集群配置 -
panamera:
请问你的最后一种模式Broker-C节点是不是应该也要修改持久 ...
ActiveMQ 集群配置 -
maosheng:
longshao_feng 写道楼主使用 文件共享 模式的ma ...
ActiveMQ 集群配置 -
longshao_feng:
楼主使用 文件共享 模式的master-slave,produ ...
ActiveMQ 集群配置 -
tanglanwen:
感触很深,必定谨记!
少走弯路的十条忠告
NFS搭建见: Linux NFS搭建与配置(https://www.iteye.com/blog/maosheng-2517254)
一、创建pv
# cat redis-pv.yml
apiVersion: v1
kind: PersistentVolume
metadata:
name: redis-pv1
spec:
capacity:
storage: 5Gi
accessModes:
- ReadWriteOnce
persistentVolumeReclaimPolicy: Recycle
storageClassName: "redis-cluster"
nfs:
path: /data/pv1
server: 192.101.11.156
---
apiVersion: v1
kind: PersistentVolume
metadata:
name: redis-pv2
spec:
capacity:
storage: 5Gi
accessModes:
- ReadWriteOnce
persistentVolumeReclaimPolicy: Recycle
storageClassName: "redis-cluster"
nfs:
path: /data/pv2
server: 192.101.11.156
---
apiVersion: v1
kind: PersistentVolume
metadata:
name: redis-pv3
spec:
capacity:
storage: 5Gi
accessModes:
- ReadWriteOnce
persistentVolumeReclaimPolicy: Recycle
storageClassName: "redis-cluster"
nfs:
path: /data/pv3
server: 192.101.11.156
---
apiVersion: v1
kind: PersistentVolume
metadata:
name: redis-pv4
spec:
capacity:
storage: 5Gi
accessModes:
- ReadWriteOnce
persistentVolumeReclaimPolicy: Recycle
storageClassName: "redis-cluster"
nfs:
path: /data/pv4
server: 192.101.11.156
---
apiVersion: v1
kind: PersistentVolume
metadata:
name: redis-pv5
spec:
capacity:
storage: 5Gi
accessModes:
- ReadWriteOnce
persistentVolumeReclaimPolicy: Recycle
storageClassName: "redis-cluster"
nfs:
path: /data/pv5
server: 192.101.11.156
---
apiVersion: v1
kind: PersistentVolume
metadata:
name: redis-pv6
spec:
capacity:
storage: 5Gi
accessModes:
- ReadWriteOnce
persistentVolumeReclaimPolicy: Recycle
storageClassName: "redis-cluster"
nfs:
path: /data/pv6
server: 192.101.11.156
# kubectl apply -f redis-pv.yml
persistentvolume/redis-pv1 created
persistentvolume/redis-pv2 created
persistentvolume/redis-pv3 created
persistentvolume/redis-pv4 created
persistentvolume/redis-pv5 created
persistentvolume/redis-pv6 created
# kubectl get pv
NAME CAPACITY ACCESS MODES RECLAIM POLICY STATUS CLAIM STORAGECLASS REASON AGE
alertmanager 10Gi RWO Recycle Bound kube-system/alertmanager 133d
grafana 10Gi RWO Recycle Bound kube-system/grafana 137d
prometheus 10Gi RWO Recycle Bound kube-system/prometheus 134d
redis-pv1 5Gi RWO Recycle Available redis-cluster 10s
redis-pv2 5Gi RWO Recycle Available redis-cluster 10s
redis-pv3 5Gi RWO Recycle Available redis-cluster 10s
redis-pv4 5Gi RWO Recycle Available redis-cluster 10s
redis-pv5 5Gi RWO Recycle Available redis-cluster 10s
redis-pv6 5Gi RWO Recycle Available redis-cluster 10s
二、创建statefulset
# cat redis-sts.yml
apiVersion: v1
kind: ConfigMap
metadata:
name: redis-cluster
data:
update-node.sh: |
#!/bin/sh
REDIS_NODES="/data/nodes.conf"
sed -i -e "/myself/ s/[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}/${POD_IP}/" ${REDIS_NODES}
exec "$@"
redis.conf: |+
cluster-enabled yes
cluster-require-full-coverage no
cluster-node-timeout 15000
cluster-config-file /data/nodes.conf
cluster-migration-barrier 1
appendonly yes
protected-mode no
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
name: redis-cluster
spec:
serviceName: redis-cluster
replicas: 6
selector:
matchLabels:
app: redis-cluster
template:
metadata:
labels:
app: redis-cluster
spec:
containers:
- name: redis
image: redis:6.2
imagePullPolicy: IfNotPresent
ports:
- containerPort: 6379
name: client
- containerPort: 16379
name: gossip
command: ["/conf/update-node.sh", "redis-server", "/conf/redis.conf"]
env:
- name: POD_IP
valueFrom:
fieldRef:
fieldPath: status.podIP
volumeMounts:
- name: conf
mountPath: /conf
readOnly: false
- name: data
mountPath: /data
readOnly: false
volumes:
- name: conf
configMap:
name: redis-cluster
defaultMode: 0755
volumeClaimTemplates:
- metadata:
name: data
spec:
accessModes: [ "ReadWriteOnce" ]
resources:
requests:
storage: 5Gi
storageClassName: redis-cluster
# kubectl apply -f redis-sts.yml
configmap/redis-cluster created
statefulset.apps/redis-cluster created
You have mail in /var/spool/mail/root
# kubectl get pods -l app=redis-cluster
NAME READY STATUS RESTARTS AGE
redis-cluster-0 1/1 Running 0 11s
redis-cluster-1 1/1 Running 0 11s
redis-cluster-2 1/1 Running 0 8s
redis-cluster-3 1/1 Running 0 5s
redis-cluster-4 1/1 Running 0 5s
redis-cluster-5 1/1 Running 0 2s
三、创建service
# cat redis-svc.yml
apiVersion: v1
kind: Service
metadata:
name: redis-cluster
spec:
externalIPs:
- 192.101.11.159
- 192.101.11.160
- 192.101.11.161
type: ClusterIP
ports:
- port: 6379
targetPort: 6379
name: client
- port: 16379
targetPort: 16379
name: gossip
selector:
app: redis-cluster
# kubectl apply -f redis-svc.yml
service/redis-cluster created
# kubectl get svc
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
redis-cluster ClusterIP 10.97.104.201 192.101.11.159,192.101.11.160,192.101.11.161 6379/TCP,16379/TCP 8s
四、初始化 Redis Cluster
# kubectl exec -it redis-cluster-0 -- redis-cli --cluster create --cluster-replicas 1 $(kubectl get pods -l app=redis-cluster -o jsonpath='{range.items}{.status.podIP}:6379 ')
>>> Performing hash slots allocation on 6 nodes...
Master[0] -> Slots 0 - 5460
Master[1] -> Slots 5461 - 10922
Master[2] -> Slots 10923 - 16383
Adding replica 10.244.1.19:6379 to 10.244.1.17:6379
Adding replica 10.244.2.28:6379 to 10.244.2.26:6379
Adding replica 10.244.2.27:6379 to 10.244.1.18:6379
M: 029cfe88022f45da4dbbee030697326248cefb3c 10.244.1.17:6379
slots:[0-5460] (5461 slots) master
M: fbd3883ba110068474c80154718cc58bbf36a2c5 10.244.2.26:6379
slots:[5461-10922] (5462 slots) master
M: 222742c9e2f8e12becb3e6ea4019ae0da563b841 10.244.1.18:6379
slots:[10923-16383] (5461 slots) master
S: 46a2f4aed697e347b79b4a09bfb719bfd30c57a3 10.244.2.27:6379
replicates 222742c9e2f8e12becb3e6ea4019ae0da563b841
S: b8f32d48b94436d39f854717c18f3c322f1c3c39 10.244.1.19:6379
replicates 029cfe88022f45da4dbbee030697326248cefb3c
S: 3a7d20346ace9afa4558b3ff8e41c507c72a9f46 10.244.2.28:6379
replicates fbd3883ba110068474c80154718cc58bbf36a2c5
Can I set the above configuration? (type 'yes' to accept): yes
>>> Nodes configuration updated
>>> Assign a different config epoch to each node
>>> Sending CLUSTER MEET messages to join the cluster
Waiting for the cluster to join
>>> Performing Cluster Check (using node 10.244.1.17:6379)
M: 029cfe88022f45da4dbbee030697326248cefb3c 10.244.1.17:6379
slots:[0-5460] (5461 slots) master
1 additional replica(s)
S: b8f32d48b94436d39f854717c18f3c322f1c3c39 10.244.1.19:6379
slots: (0 slots) slave
replicates 029cfe88022f45da4dbbee030697326248cefb3c
S: 3a7d20346ace9afa4558b3ff8e41c507c72a9f46 10.244.2.28:6379
slots: (0 slots) slave
replicates fbd3883ba110068474c80154718cc58bbf36a2c5
M: fbd3883ba110068474c80154718cc58bbf36a2c5 10.244.2.26:6379
slots:[5461-10922] (5462 slots) master
1 additional replica(s)
S: 46a2f4aed697e347b79b4a09bfb719bfd30c57a3 10.244.2.27:6379
slots: (0 slots) slave
replicates 222742c9e2f8e12becb3e6ea4019ae0da563b841
M: 222742c9e2f8e12becb3e6ea4019ae0da563b841 10.244.1.18:6379
slots:[10923-16383] (5461 slots) master
1 additional replica(s)
[OK] All nodes agree about slots configuration.
>>> Check for open slots...
>>> Check slots coverage...
[OK] All 16384 slots covered.
# kubectl exec -it redis-cluster-0 -- redis-cli cluster info
cluster_state:ok
cluster_slots_assigned:16384
cluster_slots_ok:16384
cluster_slots_pfail:0
cluster_slots_fail:0
cluster_known_nodes:6
cluster_size:3
cluster_current_epoch:6
cluster_my_epoch:1
cluster_stats_messages_ping_sent:11
cluster_stats_messages_pong_sent:17
cluster_stats_messages_sent:28
cluster_stats_messages_ping_received:12
cluster_stats_messages_pong_received:11
cluster_stats_messages_meet_received:5
cluster_stats_messages_received:28
[root@hadoop008 redis-cluster]# ^C
[root@hadoop008 redis-cluster]# ^C
You have mail in /var/spool/mail/root
五、验证集群部署
# for x in $(seq 0 5); do echo "redis-cluster-$x"; kubectl exec redis-cluster-$x -- redis-cli role; echo; done
redis-cluster-0
master
518
10.244.1.19
6379
518
redis-cluster-1
master
518
10.244.2.28
6379
518
redis-cluster-2
master
518
10.244.2.27
6379
518
redis-cluster-3
slave
10.244.1.18
6379
connected
518
redis-cluster-4
slave
10.244.1.17
6379
connected
518
redis-cluster-5
slave
10.244.2.26
6379
connected
518
一、创建pv
# cat redis-pv.yml
apiVersion: v1
kind: PersistentVolume
metadata:
name: redis-pv1
spec:
capacity:
storage: 5Gi
accessModes:
- ReadWriteOnce
persistentVolumeReclaimPolicy: Recycle
storageClassName: "redis-cluster"
nfs:
path: /data/pv1
server: 192.101.11.156
---
apiVersion: v1
kind: PersistentVolume
metadata:
name: redis-pv2
spec:
capacity:
storage: 5Gi
accessModes:
- ReadWriteOnce
persistentVolumeReclaimPolicy: Recycle
storageClassName: "redis-cluster"
nfs:
path: /data/pv2
server: 192.101.11.156
---
apiVersion: v1
kind: PersistentVolume
metadata:
name: redis-pv3
spec:
capacity:
storage: 5Gi
accessModes:
- ReadWriteOnce
persistentVolumeReclaimPolicy: Recycle
storageClassName: "redis-cluster"
nfs:
path: /data/pv3
server: 192.101.11.156
---
apiVersion: v1
kind: PersistentVolume
metadata:
name: redis-pv4
spec:
capacity:
storage: 5Gi
accessModes:
- ReadWriteOnce
persistentVolumeReclaimPolicy: Recycle
storageClassName: "redis-cluster"
nfs:
path: /data/pv4
server: 192.101.11.156
---
apiVersion: v1
kind: PersistentVolume
metadata:
name: redis-pv5
spec:
capacity:
storage: 5Gi
accessModes:
- ReadWriteOnce
persistentVolumeReclaimPolicy: Recycle
storageClassName: "redis-cluster"
nfs:
path: /data/pv5
server: 192.101.11.156
---
apiVersion: v1
kind: PersistentVolume
metadata:
name: redis-pv6
spec:
capacity:
storage: 5Gi
accessModes:
- ReadWriteOnce
persistentVolumeReclaimPolicy: Recycle
storageClassName: "redis-cluster"
nfs:
path: /data/pv6
server: 192.101.11.156
# kubectl apply -f redis-pv.yml
persistentvolume/redis-pv1 created
persistentvolume/redis-pv2 created
persistentvolume/redis-pv3 created
persistentvolume/redis-pv4 created
persistentvolume/redis-pv5 created
persistentvolume/redis-pv6 created
# kubectl get pv
NAME CAPACITY ACCESS MODES RECLAIM POLICY STATUS CLAIM STORAGECLASS REASON AGE
alertmanager 10Gi RWO Recycle Bound kube-system/alertmanager 133d
grafana 10Gi RWO Recycle Bound kube-system/grafana 137d
prometheus 10Gi RWO Recycle Bound kube-system/prometheus 134d
redis-pv1 5Gi RWO Recycle Available redis-cluster 10s
redis-pv2 5Gi RWO Recycle Available redis-cluster 10s
redis-pv3 5Gi RWO Recycle Available redis-cluster 10s
redis-pv4 5Gi RWO Recycle Available redis-cluster 10s
redis-pv5 5Gi RWO Recycle Available redis-cluster 10s
redis-pv6 5Gi RWO Recycle Available redis-cluster 10s
二、创建statefulset
# cat redis-sts.yml
apiVersion: v1
kind: ConfigMap
metadata:
name: redis-cluster
data:
update-node.sh: |
#!/bin/sh
REDIS_NODES="/data/nodes.conf"
sed -i -e "/myself/ s/[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}/${POD_IP}/" ${REDIS_NODES}
exec "$@"
redis.conf: |+
cluster-enabled yes
cluster-require-full-coverage no
cluster-node-timeout 15000
cluster-config-file /data/nodes.conf
cluster-migration-barrier 1
appendonly yes
protected-mode no
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
name: redis-cluster
spec:
serviceName: redis-cluster
replicas: 6
selector:
matchLabels:
app: redis-cluster
template:
metadata:
labels:
app: redis-cluster
spec:
containers:
- name: redis
image: redis:6.2
imagePullPolicy: IfNotPresent
ports:
- containerPort: 6379
name: client
- containerPort: 16379
name: gossip
command: ["/conf/update-node.sh", "redis-server", "/conf/redis.conf"]
env:
- name: POD_IP
valueFrom:
fieldRef:
fieldPath: status.podIP
volumeMounts:
- name: conf
mountPath: /conf
readOnly: false
- name: data
mountPath: /data
readOnly: false
volumes:
- name: conf
configMap:
name: redis-cluster
defaultMode: 0755
volumeClaimTemplates:
- metadata:
name: data
spec:
accessModes: [ "ReadWriteOnce" ]
resources:
requests:
storage: 5Gi
storageClassName: redis-cluster
# kubectl apply -f redis-sts.yml
configmap/redis-cluster created
statefulset.apps/redis-cluster created
You have mail in /var/spool/mail/root
# kubectl get pods -l app=redis-cluster
NAME READY STATUS RESTARTS AGE
redis-cluster-0 1/1 Running 0 11s
redis-cluster-1 1/1 Running 0 11s
redis-cluster-2 1/1 Running 0 8s
redis-cluster-3 1/1 Running 0 5s
redis-cluster-4 1/1 Running 0 5s
redis-cluster-5 1/1 Running 0 2s
三、创建service
# cat redis-svc.yml
apiVersion: v1
kind: Service
metadata:
name: redis-cluster
spec:
externalIPs:
- 192.101.11.159
- 192.101.11.160
- 192.101.11.161
type: ClusterIP
ports:
- port: 6379
targetPort: 6379
name: client
- port: 16379
targetPort: 16379
name: gossip
selector:
app: redis-cluster
# kubectl apply -f redis-svc.yml
service/redis-cluster created
# kubectl get svc
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
redis-cluster ClusterIP 10.97.104.201 192.101.11.159,192.101.11.160,192.101.11.161 6379/TCP,16379/TCP 8s
四、初始化 Redis Cluster
# kubectl exec -it redis-cluster-0 -- redis-cli --cluster create --cluster-replicas 1 $(kubectl get pods -l app=redis-cluster -o jsonpath='{range.items
Master[0] -> Slots 0 - 5460
Master[1] -> Slots 5461 - 10922
Master[2] -> Slots 10923 - 16383
Adding replica 10.244.1.19:6379 to 10.244.1.17:6379
Adding replica 10.244.2.28:6379 to 10.244.2.26:6379
Adding replica 10.244.2.27:6379 to 10.244.1.18:6379
M: 029cfe88022f45da4dbbee030697326248cefb3c 10.244.1.17:6379
slots:[0-5460] (5461 slots) master
M: fbd3883ba110068474c80154718cc58bbf36a2c5 10.244.2.26:6379
slots:[5461-10922] (5462 slots) master
M: 222742c9e2f8e12becb3e6ea4019ae0da563b841 10.244.1.18:6379
slots:[10923-16383] (5461 slots) master
S: 46a2f4aed697e347b79b4a09bfb719bfd30c57a3 10.244.2.27:6379
replicates 222742c9e2f8e12becb3e6ea4019ae0da563b841
S: b8f32d48b94436d39f854717c18f3c322f1c3c39 10.244.1.19:6379
replicates 029cfe88022f45da4dbbee030697326248cefb3c
S: 3a7d20346ace9afa4558b3ff8e41c507c72a9f46 10.244.2.28:6379
replicates fbd3883ba110068474c80154718cc58bbf36a2c5
Can I set the above configuration? (type 'yes' to accept): yes
>>> Nodes configuration updated
>>> Assign a different config epoch to each node
>>> Sending CLUSTER MEET messages to join the cluster
Waiting for the cluster to join
>>> Performing Cluster Check (using node 10.244.1.17:6379)
M: 029cfe88022f45da4dbbee030697326248cefb3c 10.244.1.17:6379
slots:[0-5460] (5461 slots) master
1 additional replica(s)
S: b8f32d48b94436d39f854717c18f3c322f1c3c39 10.244.1.19:6379
slots: (0 slots) slave
replicates 029cfe88022f45da4dbbee030697326248cefb3c
S: 3a7d20346ace9afa4558b3ff8e41c507c72a9f46 10.244.2.28:6379
slots: (0 slots) slave
replicates fbd3883ba110068474c80154718cc58bbf36a2c5
M: fbd3883ba110068474c80154718cc58bbf36a2c5 10.244.2.26:6379
slots:[5461-10922] (5462 slots) master
1 additional replica(s)
S: 46a2f4aed697e347b79b4a09bfb719bfd30c57a3 10.244.2.27:6379
slots: (0 slots) slave
replicates 222742c9e2f8e12becb3e6ea4019ae0da563b841
M: 222742c9e2f8e12becb3e6ea4019ae0da563b841 10.244.1.18:6379
slots:[10923-16383] (5461 slots) master
1 additional replica(s)
[OK] All nodes agree about slots configuration.
>>> Check for open slots...
>>> Check slots coverage...
[OK] All 16384 slots covered.
# kubectl exec -it redis-cluster-0 -- redis-cli cluster info
cluster_state:ok
cluster_slots_assigned:16384
cluster_slots_ok:16384
cluster_slots_pfail:0
cluster_slots_fail:0
cluster_known_nodes:6
cluster_size:3
cluster_current_epoch:6
cluster_my_epoch:1
cluster_stats_messages_ping_sent:11
cluster_stats_messages_pong_sent:17
cluster_stats_messages_sent:28
cluster_stats_messages_ping_received:12
cluster_stats_messages_pong_received:11
cluster_stats_messages_meet_received:5
cluster_stats_messages_received:28
[root@hadoop008 redis-cluster]# ^C
[root@hadoop008 redis-cluster]# ^C
You have mail in /var/spool/mail/root
五、验证集群部署
# for x in $(seq 0 5); do echo "redis-cluster-$x"; kubectl exec redis-cluster-$x -- redis-cli role; echo; done
redis-cluster-0
master
518
10.244.1.19
6379
518
redis-cluster-1
master
518
10.244.2.28
6379
518
redis-cluster-2
master
518
10.244.2.27
6379
518
redis-cluster-3
slave
10.244.1.18
6379
connected
518
redis-cluster-4
slave
10.244.1.17
6379
connected
518
redis-cluster-5
slave
10.244.2.26
6379
connected
518
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