故障現(xiàn)象：

1.osd無法啟動

2.日志中打?。?/p>

-3> 2019-04-10 10:25:47.087958 7f2db747dd00 -1 bluestore(/var/lib/ceph/osd/ceph-259) _verify_csum bad crc32c/0x1000 checksum at blob offset 0x40000, got 0x1edf4f90, expected 0x3a8d2618,

device location [0xe5f1dc0000~1000], logical extent 0x40000~1000, object #-1:1cc0dc50:::osdmap.7421:0#

? ? -2> 2019-04-10 10:25:47.087988 7f2db747dd00 -1 osd.259 0 failed to load OSD map for epoch 7421, got 0 bytes

? ? -1> 2019-04-10 10:25:47.088002 7f2db747dd00 -1 osd.259 7424 load_pgs: have pgid 2.1a6ds4 at epoch 7421, but missing map.? Crashing.

原因：

昨晚內(nèi)存故障導致osdmap丟失，嘗試修復錯誤的osdmap

修復方法，找個正常的osd盤復制一份osdmap導進去：

ceph-objectstore-tool --op get-osdmap --epoch 7421 --data-path /var/lib/ceph/osd/ceph-464 --type bluestore --file ./7421

ceph-objectstore-tool --op set-osdmap --epoch 7421 --data-path /var/lib/ceph/osd/ceph-259 --type bluestore --file ./7421

反復重復上面的動作

打完收工