其实就是给各个OSDs 设置均衡权重(区别OSD weight 是根据容量设置的固定权重) 调整数据量超过阀值的OSD的权重,阀值默认值为120%。 ceph osd reweight-by-utilization [threshold] 若要预览效果,则可以使用以下命令: ceph osd test-reweight-by-utilization [threshold] 当然,也可以根据每个OSD上的PG数量来调整,阀值...
[root@rook-ceph-tools-6f44db7c58-zw47s /]# ceph osd reweight-by-utilizationnochangemoved0/579(0%)avg96.5stddev2.62996->2.62996(expected baseline8.96753)minosd.4with93->93pgs (0.963731->0.963731* mean)maxosd.3with100->100pgs (1.03627->1.03627* mean)oload120max_change0.05max_change_osds4...
'ceph osd reweight-by-utilization' was used in an attempt to help re-balance data on over-utilized OSD's throughout the cluster. After the data was re-balanced and the cluster settled down, Placement Groups can be seen stuck unclean and remapped with objects in a degraded state. Raw ~$...
When ceph df reports the space available to a pool, it considers the ratio settings relative to the most full OSD that is part of the pool. To flatten the distribution, two approaches are available: (1) Using the reweight-by-utilization command to progressively move data from excessively ...
REWEIGHT调整(设置新写入数据权重值,硬盘使用率较高时降低权重以平衡数据)。 ceph osd reweight {osd_id} {ratio} ceph osd reweight231 自动调整REWEIGHT, 按使用率均衡数据存储(根据硬盘使用率调整新数据写入比重): ceph osd reweight-by-utilization ...
OSD Reweight 其实就是给各个OSDs 设置均衡权重(区别OSD weight 是根据容量设置的固定权重) 调整数据量超过阀值的OSD的权重,阀值默认值为120%。 ceph osd reweight-by-utilization [threshold] 若要预览效果,则可以使用以下命令: ceph osd test-reweight-by-utilization [threshold] ...
查看ceph集群中各osd的使用率 发现osd的使用不均衡,最高的已超过95%,最低的才40%多点,缺省的均衡方式是按照PGS数量来做均衡,osd之间相差不大,但是真实占用的空间差别太大,根据ceph集群的定义,即使只有一个osd的使用率超过95%,整个集群将不可用,无法读写。
If all goes well, reimport crushmap : $ ceph osd setcrushmap -i crushmap-new.bin http://ceph.com/docs/master/man/8/crushtool/ osd reweight-by-utilization Also, you can useceph osd reweight-by-utilization. http://ceph.com/docs/master/rados/operations/control/#osd-subsystem...
如果要消除WARN,可以修改这两个参数,提高阈值,但是通过实践发现并不能解决问题,可以通过观察osd的数据分布情况来分析原因。 配置文件设置阈值 "mon_osd_full_ratio":"0.95", "mon_osd_nearfull_ratio":"0.85" 处理方式 #自动处理 ceph osd reweight-by-utilization ceph osd reweight-by-pg 105 cephfs_data(...
分布式存储:利用Ceph的分布式存储特性,将数据分散在多个OSD节点上,以实现负载均衡和高可用性。 数据均衡:使用Ceph的ceph osd reweight-by-utilization命令,根据OSD节点的实际使用情况自动调整权重,以实现数据均衡。 监控和告警:使用Ceph的监控工具(如Ceph Monitor和Ceph Dashboard)监控集群的性能和资源使用情况。设置告警规...