YokePostgres 高可用集群
Yoke 是 Postgres 的高可用集群,具有自動(dòng)切換和自動(dòng)集群恢復(fù)。Postgres冗余/自動(dòng)故障轉(zhuǎn)移解決方案,提供一個(gè)高可用PostgreSQL集群的簡(jiǎn)單管理。
Yoke 依賴:
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包含 'primary', 'secondary' 和 'monitor' 三個(gè)節(jié)點(diǎn)的 3-server 集群
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'primary' & 'secondary' 節(jié)點(diǎn)需要互相之間進(jìn)行 ssh 連接 (w/o 密碼)
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'primary' & 'secondary' 節(jié)點(diǎn)需要遠(yuǎn)程同步安裝 (或者一些替代 sync_command)
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'primary' & 'secondary' 節(jié)點(diǎn)應(yīng)該有安裝 postgres,Yoke 會(huì)嘗試調(diào)用 'postgres' 和 'pg_ctl'
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'primary' & 'secondary' 節(jié)點(diǎn)作為一個(gè)子進(jìn)程運(yùn)行 postgres
配置示例:
[config]
# the IP which this node will broadcast to other nodes
advertise_ip=
# the port which this node will broadcast to other nodes
advertise_port=4400
# the directory where postgresql was installed
data_dir=/data
# delay before node decides what to do with postgresql instance
decision_timeout=30
# log verbosity (trace, debug, info, warn error, fatal)
log_level=warn
# REQUIRED - the IP:port combination of all nodes that are to be in the cluster (e.g. 'role=m.y.i.p:4400')
primary=
secondary=
monitor=
# SmartOS REQUIRED - either 'primary', 'secondary', or 'monitor' (the cluster needs exactly one of each)
role=
# the postgresql port
pg_port=5432
# the directory where node status information is stored
status_dir=./status
# the command you would like to use to sync the data from this node to the other when this node is master
sync_command=rsync -ae "ssh -o StrictHostKeyChecking=no" --delete {{local_dir}} {{slave_ip}}:{{slave_dir}}
[vip]
# Virtual Ip you would like to use
ip=
# Command to use when adding the vip. This will be called as {{add_command}} {{vip}}
add_command=
# Command to use when removing the vip. This will be called as {{remove_command}} {{vip}}
remove_command=
[role_change]
# When this nodes role changes we will call the command with the new role as its arguement '{{command}} {{(master|slave|single}))'
command=評(píng)論
圖片
表情
