ceph 调整 PG 平衡集群数据分布自动进行调整

深藏阁楼爱情的钟 2023-01-01 10:54 335阅读 0赞

### ceph 调整 PG 平衡 集群数据分布自动进行调整 ###

*  ceph 调整 PG 平衡
 *  crush-compat 模式
 *  调整完成
 *  关闭自动平衡

# ceph 调整 PG 平衡 #

# ceph -v
    ceph version 13.2.10 mimic (stable)

ceph mgr module ls

# ceph mgr module ls
    { 
        "enabled_modules": [
            "balancer",
            "crash",
            "dashboard",
            "iostat",
            "restful",
            "status"
        ],
        "disabled_modules": [
            { 
                "name": "hello",
                "can_run": true,
                "error_string": ""
            },
            { 
                "name": "influx",
                "can_run": false,
                "error_string": "influxdb python module not found"
            },
            { 
                "name": "localpool",
                "can_run": true,
                "error_string": ""
            },
            { 
                "name": "prometheus",
                "can_run": true,
                "error_string": ""
            },
            { 
                "name": "selftest",
                "can_run": true,
                "error_string": ""
            },
            { 
                "name": "smart",
                "can_run": true,
                "error_string": ""
            },
            { 
                "name": "telegraf",
                "can_run": true,
                "error_string": ""
            },
            { 
                "name": "telemetry",
                "can_run": true,
                "error_string": ""
            },
            { 
                "name": "zabbix",
                "can_run": true,
                "error_string": ""
            }
        ]
    }

ceph  balancer status

# ceph  balancer status
    { 
        "last_optimize_duration": "",
        "plans": [],
        "mode": "none",
        "active": false,
        "optimize_result": "",
        "last_optimize_started": ""
    }

# crush-compat 模式 #

ceph balancer mode crush-compat

*  开启调整

ceph balancer on

# ceph  balancer status
    { 
        "last_optimize_duration": "0:00:01.007712",
        "plans": [],
        "mode": "crush-compat",
        "active": true,
        "optimize_result": "Optimization plan created successfully",
        "last_optimize_started": "Sat Jan 2 10:51:55 2021"
    }

# ceph -s
        health: HEALTH_WARN
                7519146/149867787 objects misplaced (5.017%)

# 调整完成 #

# ceph  balancer status
    { 
        "last_optimize_duration": "0:00:01.314594",
        "plans": [],
        "mode": "crush-compat",
        "active": true,
        "optimize_result": "Unable to find further optimization, change balancer mode and retry might help",
        "last_optimize_started": "Sun Jan 3 09:40:34 2021"
    }

# 关闭自动平衡 #

# ceph balancer off

# ceph  balancer status
    { 
        "last_optimize_duration": "0:00:01.315186",
        "plans": [],
        "mode": "crush-compat",
        "active": false,
        "optimize_result": "Unable to find further optimization, change balancer mode and retry might help",
        "last_optimize_started": "Sun Jan 3 09:42:38 2021"
    }

--------------------

参考：

1.  [ceph的pg平衡插件balancer][ceph_pg_balancer]

[ceph_pg_balancer]: https://ceph.io/planet/ceph%E7%9A%84pg%E5%B9%B3%E8%A1%A1%E6%8F%92%E4%BB%B6balancer/